mirror of https://gitee.com/openkylin/linux.git
515 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Al Viro
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aaa2e7ac80 |
add asm-generic/extable.h
... and make the users of generic uaccess.h use that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Michal Marek
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41f5b8db79 |
unicore32: Use full path in KBUILD_IMAGE definition
The KBUILD_IMAGE variable is used by the rpm and deb-pkg targets, which expect it to point to the image file in the build directory. The builddeb script has a workaround for architectures which only provide the basename, but let's provide a clean interface for packaging tools. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Michal Marek <mmarek@suse.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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Kirill A. Shutemov
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9a804fecee |
mm/gup: Drop the arch_pte_access_permitted() MMU callback
The only arch that defines it to something meaningful is x86. But x86 doesn't use the generic GUP_fast() implementation -- the only place where the callback is called. Let's drop it. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Aneesh Kumar K . V <aneesh.kumar@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dann Frazier <dann.frazier@canonical.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Steve Capper <steve.capper@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170316152655.37789-2-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Kirill A. Shutemov
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9849a5697d |
arch, mm: convert all architectures to use 5level-fixup.h
If an architecture uses 4level-fixup.h we don't need to do anything as it includes 5level-fixup.h. If an architecture uses pgtable-nop*d.h, define __ARCH_USE_5LEVEL_HACK before inclusion of the header. It makes asm-generic code to use 5level-fixup.h. If an architecture has 4-level paging or folds levels on its own, include 5level-fixup.h directly. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Al Viro
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af1d5b37d6 |
uaccess: drop duplicate includes from asm/uaccess.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Ingo Molnar
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68db0cf106 |
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>
We are going to split <linux/sched/task_stack.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/task_stack.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Ingo Molnar
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299300258d |
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>
We are going to split <linux/sched/task.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/task.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Ingo Molnar
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b17b01533b |
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
We are going to split <linux/sched/debug.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/debug.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Ingo Molnar
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3f07c01441 |
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/signal.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Luis R. Rodriguez
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7d134b2ce6 |
kprobes: move kprobe declarations to asm-generic/kprobes.h
Often all is needed is these small helpers, instead of compiler.h or a full kprobes.h. This is important for asm helpers, in fact even some asm/kprobes.h make use of these helpers... instead just keep a generic asm file with helpers useful for asm code with the least amount of clutter as possible. Likewise we need now to also address what to do about this file for both when architectures have CONFIG_HAVE_KPROBES, and when they do not. Then for when architectures have CONFIG_HAVE_KPROBES but have disabled CONFIG_KPROBES. Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES, this means most architecture code cannot include asm/kprobes.h safely. Correct this and add guards for architectures missing them. Additionally provide architectures that not have kprobes support with the default asm-generic solution. This lets us force asm/kprobes.h on the header include/linux/kprobes.h always, but most importantly we can now safely include just asm/kprobes.h on architecture code without bringing the full kitchen sink of header files. Two architectures already provided a guard against CONFIG_KPROBES on its kprobes.h: sh, arch. The rest of the architectures needed gaurds added. We avoid including any not-needed headers on asm/kprobes.h unless kprobes have been enabled. In a subsequent atomic change we can try now to remove compiler.h from include/linux/kprobes.h. During this sweep I've also identified a few architectures defining a common macro needed for both kprobes and ftrace, that of the definition of the breakput instruction up. Some refer to this as BREAKPOINT_INSTRUCTION. This must be kept outside of the #ifdef CONFIG_KPROBES guard. [mcgrof@kernel.org: fix arm64 build] Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com [sfr@canb.auug.org.au: fixup for kprobes declarations moving] Link: http://lkml.kernel.org/r/20170214165933.13ebd4f4@canb.auug.org.au Link: http://lkml.kernel.org/r/20170203233139.32682-1-mcgrof@kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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ac1820fb28 |
This is a tree wide change and has been kept separate for that reason.
Bart Van Assche noted that the ib DMA mapping code was significantly similar enough to the core DMA mapping code that with a few changes it was possible to remove the IB DMA mapping code entirely and switch the RDMA stack to use the core DMA mapping code. This resulted in a nice set of cleanups, but touched the entire tree. This branch will be submitted separately to Linus at the end of the merge window as per normal practice for tree wide changes like this. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJYo06oAAoJELgmozMOVy/d9Z8QALedWHdu98St1L0u2c8sxnR9 2zo/4sF5Vb9u7FpmdIX32L4SQ9s9KhPE8Qp8NtZLf9v10zlDebIRJDpXknXtKooV CAXxX4sxBXV27/UrhbZEfXiPrmm6ccJFyIfRnMU6NlMqh2AtAsRa5AC2/RMp8oUD Med97PFiF0o6TD22/UH1VFbRpX1zjaKyqm7a3as5sJfzNA+UGIZAQ7Euz8000DKZ xCgVLTEwS0FmOujtBkCst7xa9TjuqR1HLOB4DdGvAhP6BHdz2yamM7Qmh9NN+NEX 0BtjsuXomtn6j6AszGC+bpipCZh3NUigcwoFAARXCYFHibBvo4DPdFeGsraFgXdy 1+KyR8CCeQG3Aly5Vwr264RFPGkGpwMj8PsBlXgQVtrlg4rriaCzOJNmIIbfdADw ftqhxBOzReZw77aH2s+9p2ILRfcAmPqhynLvFGFo9LBvsik8LVso7YgZN0xGxwcI IjI/XGC8UskPVsIZBIYA6sl2bYzgOjtBIHiXjRrPlW3uhduIXLrvKFfLPP/5XLAG ehLXK+J0bfsyY9ClmlNS8oH/WdLhXAyy/KNmnj5bRRm9qg6BRJR3bsOBhZJODuoC XgEXFfF6/7roNESWxowff7pK0rTkRg/m/Pa4VQpeO+6NWHE7kgZhL6kyIp5nKcwS 3e7mgpcwC+3XfA/6vU3F =e0Si -----END PGP SIGNATURE----- Merge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma DMA mapping updates from Doug Ledford: "Drop IB DMA mapping code and use core DMA code instead. Bart Van Assche noted that the ib DMA mapping code was significantly similar enough to the core DMA mapping code that with a few changes it was possible to remove the IB DMA mapping code entirely and switch the RDMA stack to use the core DMA mapping code. This resulted in a nice set of cleanups, but touched the entire tree and has been kept separate for that reason." * tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits) IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it IB/core: Remove ib_device.dma_device nvme-rdma: Switch from dma_device to dev.parent RDS: net: Switch from dma_device to dev.parent IB/srpt: Modify a debug statement IB/srp: Switch from dma_device to dev.parent IB/iser: Switch from dma_device to dev.parent IB/IPoIB: Switch from dma_device to dev.parent IB/rxe: Switch from dma_device to dev.parent IB/vmw_pvrdma: Switch from dma_device to dev.parent IB/usnic: Switch from dma_device to dev.parent IB/qib: Switch from dma_device to dev.parent IB/qedr: Switch from dma_device to dev.parent IB/ocrdma: Switch from dma_device to dev.parent IB/nes: Remove a superfluous assignment statement IB/mthca: Switch from dma_device to dev.parent IB/mlx5: Switch from dma_device to dev.parent IB/mlx4: Switch from dma_device to dev.parent IB/i40iw: Remove a superfluous assignment statement IB/hns: Switch from dma_device to dev.parent ... |
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Michal Hocko
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6d23f8a5d4 |
arch, mm: remove arch specific show_mem
We have a generic implementation for quite some time already. If there is any arch specific information to be printed then we should add a callback called from the generic code rather than duplicate the whole show_mem. The current code has resulted in the code duplication and the output divergence which is both confusing and adds maintainance costs. Let's just get rid of this mess. Link: http://lkml.kernel.org/r/20170117091543.25850-4-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [UniCore32] Acked-by: Helge Deller <deller@gmx.de> [for parisc] Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile] Acked-by: Mel Gorman <mgorman@suse.de> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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6d1c42d9b9 |
Final extable.h related changes.
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJYrFn+AAoJEOvOhAQsB9HWbDAP/i1bMxYJSnwD2D/PBvzpY2AW uinEigaRr6kpRCOfa9FrfgxokKfosZOx5h7Se3f6O3mPwgpsU+dqbaE18Z5XSgxh +a9+HvAv3/XNZg7SvBtBaoYDblHWJ6AJ9rN9fuKg3e8btE3rSFG147vj1atlVz1+ iRsXcCPb1p5db2+wZdsYJPI5Zwt4N0nR6cxPX4RQ6jseiVqPpt/FDtB60RYCjbID J0cOk1VV1Jn2H1Rfl+hjNQjIPMNx3zftOLQ2usr/kwuEqeuTKZR06yLXFOT6bdXU 6JBdfL+e2kHKbaLyJGr6MCjTokaMgN3SGZJWJqHgk5Nggq5BD+2c4AOs8t6URnE0 KThGiyY+YI5C/W6kMlEozLARiMKe4IIQpx1uj2Hv+YkndntvqjCqvfdQQJKnzm0G YWfPnsG2dysiovwEOBoBwyFVFLFzzJ1o3uyRGkCzVGaLQVzD5ktAJM6ynMOxwcIn zSN+agzdTAD7QJIDaa1p2r5fAqy7i4xIn2+ts1s9c410fdUTB4A2QJzTywjPAdCp IRxcLLpYDeBZ5cbhqjR677WgPtteYFTljoX+/8BOFO2PI+HjKHrxfW02WSiCS0iu CUndrlpmuyKlIrpw7mYpDTbORcSQSiUkB1pRGT7poh2p0KKAGSo9ZrRbx+qRvPdH AxO+ZR6Jjj5LAMk5MkRz =RK2h -----END PGP SIGNATURE----- Merge tag 'extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull exception table module split from Paul Gortmaker: "Final extable.h related changes. This completes the separation of exception table content from the module.h header file. This is achieved with the final commit that removes the one line back compatible change that sourced extable.h into the module.h file. The commits are unchanged since January, with the exception of a couple Acks that came in for the last two commits a bit later. The changes have been in linux-next for quite some time[1] and have got widespread arch coverage via toolchains I have and also from additional ones the kbuild bot has. Maintaners of the various arch were Cc'd during the postings to lkml[2] and informed that the intention was to take the remaining arch specific changes and lump them together with the final two non-arch specific changes and submit for this merge window. The ia64 diffstat stands out and probably warrants a mention. In an earlier review, Al Viro made a valid comment that the original header separation of content left something to be desired, and that it get fixed as a part of this change, hence the larger diffstat" * tag 'extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (21 commits) module.h: remove extable.h include now users have migrated core: migrate exception table users off module.h and onto extable.h cris: migrate exception table users off module.h and onto extable.h hexagon: migrate exception table users off module.h and onto extable.h microblaze: migrate exception table users off module.h and onto extable.h unicore32: migrate exception table users off module.h and onto extable.h score: migrate exception table users off module.h and onto extable.h metag: migrate exception table users off module.h and onto extable.h arc: migrate exception table users off module.h and onto extable.h nios2: migrate exception table users off module.h and onto extable.h sparc: migrate exception table users onto extable.h openrisc: migrate exception table users off module.h and onto extable.h frv: migrate exception table users off module.h and onto extable.h sh: migrate exception table users off module.h and onto extable.h xtensa: migrate exception table users off module.h and onto extable.h mn10300: migrate exception table users off module.h and onto extable.h alpha: migrate exception table users off module.h and onto extable.h arm: migrate exception table users off module.h and onto extable.h m32r: migrate exception table users off module.h and onto extable.h ia64: ensure exception table search users include extable.h ... |
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Frederic Weisbecker
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b672592f02 |
sched/cputime: Remove generic asm headers
cputime_t is now only used by two architectures: * powerpc (when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y) * s390 And since the core doesn't use it anymore, we don't need any arch support from the others. So we can remove their stub implementations. A final cleanup would be to provide an efficient pure arch implementation of cputime_to_nsec() for s390 and powerpc and finally remove include/linux/cputime.h . Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1485832191-26889-36-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Paul Gortmaker
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0f91f3f6fa |
unicore32: migrate exception table users off module.h and onto extable.h
This file was only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile this file. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
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Bart Van Assche
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815dd18788 |
treewide: Consolidate get_dma_ops() implementations
Introduce a new architecture-specific get_arch_dma_ops() function that takes a struct bus_type * argument. Add get_dma_ops() in <linux/dma-mapping.h>. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Bart Van Assche
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5299709d0a |
treewide: Constify most dma_map_ops structures
Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:
git grep -l 'struct dma_map_ops' |
xargs -d\\n sed -i \
-e 's/struct dma_map_ops/const struct dma_map_ops/g' \
-e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
-e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
-e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
-e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
-e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c
sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Thomas Gleixner
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a5a1d1c291 |
clocksource: Use a plain u64 instead of cycle_t
There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org> |
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Christian Borntraeger
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6d0d287891 |
locking/core: Provide common cpu_relax_yield() definition
No need to duplicate the same define everywhere. Since the only user is stop-machine and the only provider is s390, we can use a default implementation of cpu_relax_yield() in sched.h. Suggested-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Noam Camus <noamc@ezchip.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: kvm@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-s390 <linux-s390@vger.kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/1479298985-191589-1-git-send-email-borntraeger@de.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Christian Borntraeger
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5bd0b85ba8 |
locking/core, arch: Remove cpu_relax_lowlatency()
As there are no users left, we can remove cpu_relax_lowlatency() implementations from every architecture. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Noam Camus <noamc@ezchip.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Cc: <linux-arch@vger.kernel.org> Link: http://lkml.kernel.org/r/1477386195-32736-6-git-send-email-borntraeger@de.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Christian Borntraeger
|
79ab11cdb9 |
locking/core: Introduce cpu_relax_yield()
For spinning loops people do often use barrier() or cpu_relax(). For most architectures cpu_relax and barrier are the same, but on some architectures cpu_relax can add some latency. For example on power,sparc64 and arc, cpu_relax can shift the CPU towards other hardware threads in an SMT environment. On s390 cpu_relax does even more, it uses an hypercall to the hypervisor to give up the timeslice. In contrast to the SMT yielding this can result in larger latencies. In some places this latency is unwanted, so another variant "cpu_relax_lowlatency" was introduced. Before this is used in more and more places, lets revert the logic and provide a cpu_relax_yield that can be called in places where yielding is more important than latency. By default this is the same as cpu_relax on all architectures. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Noam Camus <noamc@ezchip.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/1477386195-32736-2-git-send-email-borntraeger@de.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Peter Zijlstra
|
890658b7ab |
locking/mutex: Kill arch specific code
Its all generic atomic_long_t stuff now. Tested-by: Jason Low <jason.low2@hpe.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Jason Cooper
|
05c2679e95 |
unicore32: use simpler API for random address requests
Currently, all callers to randomize_range() set the length to 0 and calculate end by adding a constant to the start address. We can simplify the API to remove a bunch of needless checks and variables. Use the new randomize_addr(start, range) call to set the requested address. Link: http://lkml.kernel.org/r/20160803233913.32511-7-jason@lakedaemon.net Signed-off-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Kees Cook <keescook@chromium.org> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Chris Metcalf
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6727ad9e20 |
nmi_backtrace: generate one-line reports for idle cpus
When doing an nmi backtrace of many cores, most of which are idle, the output is a little overwhelming and very uninformative. Suppress messages for cpus that are idling when they are interrupted and just emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN". We do this by grouping all the cpuidle code together into a new .cpuidle.text section, and then checking the address of the interrupted PC to see if it lies within that section. This commit suitably tags x86 and tile idle routines, and only adds in the minimal framework for other architectures. Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Daniel Thompson <daniel.thompson@linaro.org> [arm] Tested-by: Petr Mladek <pmladek@suse.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Guenter Roeck
|
783011b130 |
unicore32: mm: Add missing parameter to arch_vma_access_permitted
unicore32 fails to compile with the following errors.
mm/memory.c: In function ‘__handle_mm_fault’:
mm/memory.c:3381: error:
too many arguments to function ‘arch_vma_access_permitted’
mm/gup.c: In function ‘check_vma_flags’:
mm/gup.c:456: error:
too many arguments to function ‘arch_vma_access_permitted’
mm/gup.c: In function ‘vma_permits_fault’:
mm/gup.c:640: error:
too many arguments to function ‘arch_vma_access_permitted’
Fixes:
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Krzysztof Kozlowski
|
00085f1efa |
dma-mapping: use unsigned long for dma_attrs
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer. Thus the pointer can point to const data.
However the attributes do not have to be a bitfield. Instead unsigned
long will do fine:
1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.
2. It brings safeness and checking for const correctness because the
attributes are passed by value.
Semantic patches for this change (at least most of them):
virtual patch
virtual context
@r@
identifier f, attrs;
@@
f(...,
- struct dma_attrs *attrs
+ unsigned long attrs
, ...)
{
...
}
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
and
// Options: --all-includes
virtual patch
virtual context
@r@
identifier f, attrs;
type t;
@@
t f(..., struct dma_attrs *attrs);
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
|
c8d0267efd |
PCI changes for the v4.8 merge window:
Enumeration
Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
Add parent device field to ECAM struct pci_config_window (Jayachandran C)
Add generic MCFG table handling (Tomasz Nowicki)
Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
Resource management
Add devm_request_pci_bus_resources() (Bjorn Helgaas)
Unify pci_resource_to_user() declarations (Bjorn Helgaas)
Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
Ignore write combining when mapping I/O port space (Bjorn Helgaas)
Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
Support I/O resources when parsing host bridge resources (Jayachandran C)
Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
PCI device hotplug
Allow additional bus numbers for hotplug bridges (Keith Busch)
Ignore interrupts during D3cold (Lukas Wunner)
Power management
Enforce type casting for pci_power_t (Andy Shevchenko)
Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
Put PCIe ports into D3 during suspend (Mika Westerberg)
Power on bridges before scanning new devices (Mika Westerberg)
Runtime resume bridge before rescan (Mika Westerberg)
Add runtime PM support for PCIe ports (Mika Westerberg)
Remove redundant check of pcie_set_clkpm (Shawn Lin)
Virtualization
Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
Add ACS quirk for Solarflare SFC9220 (Edward Cree)
MSI
Fix PCI_MSI dependencies (Arnd Bergmann)
Add pci_msix_desc_addr() helper (Christoph Hellwig)
Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
Error Handling
Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
Remove DPC tristate module option (Keith Busch)
Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
Generic host bridge driver
Select IRQ_DOMAIN (Arnd Bergmann)
Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
ACPI host bridge driver
Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
Altera host bridge driver
Check link status before retrain link (Ley Foon Tan)
Poll for link up status after retraining the link (Ley Foon Tan)
Axis ARTPEC-6 host bridge driver
Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
Intel VMD host bridge driver
Use lock save/restore in interrupt enable path (Jon Derrick)
Select device dma ops to override (Keith Busch)
Initialize list item in IRQ disable (Keith Busch)
Use x86_vector_domain as parent domain (Keith Busch)
Separate MSI and MSI-X vector sharing (Keith Busch)
Marvell Aardvark host bridge driver
Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
Add Aardvark PCI host controller driver (Thomas Petazzoni)
Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
Microsoft Hyper-V host bridge driver
Fix interrupt cleanup path (Cathy Avery)
Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
NVIDIA Tegra host bridge driver
Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
Use lower-case hex consistently for register definitions (Thierry Reding)
Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
Stop setting pcibios_min_mem (Thierry Reding)
Renesas R-Car host bridge driver
Drop gen2 dummy I/O port region (Bjorn Helgaas)
TI DRA7xx host bridge driver
Fix return value in case of error (Christophe JAILLET)
Xilinx AXI host bridge driver
Fix return value in case of error (Christophe JAILLET)
Miscellaneous
Make bus_attr_resource_alignment static (Ben Dooks)
Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
Make host bridge drivers explicitly non-modular (Paul Gortmaker)
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Merge tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Highlights:
- ARM64 support for ACPI host bridges
- new drivers for Axis ARTPEC-6 and Marvell Aardvark
- new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx
- pci_resource_to_user() cleanup (more to come)
Detailed summary:
Enumeration:
- Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
- Add parent device field to ECAM struct pci_config_window (Jayachandran C)
- Add generic MCFG table handling (Tomasz Nowicki)
- Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
- Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
Resource management:
- Add devm_request_pci_bus_resources() (Bjorn Helgaas)
- Unify pci_resource_to_user() declarations (Bjorn Helgaas)
- Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
- Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
- Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
- Ignore write combining when mapping I/O port space (Bjorn Helgaas)
- Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
- Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
- Support I/O resources when parsing host bridge resources (Jayachandran C)
- Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
- Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
- Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
- Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
- Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
- Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
- Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
- Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
PCI device hotplug:
- Allow additional bus numbers for hotplug bridges (Keith Busch)
- Ignore interrupts during D3cold (Lukas Wunner)
Power management:
- Enforce type casting for pci_power_t (Andy Shevchenko)
- Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
- Put PCIe ports into D3 during suspend (Mika Westerberg)
- Power on bridges before scanning new devices (Mika Westerberg)
- Runtime resume bridge before rescan (Mika Westerberg)
- Add runtime PM support for PCIe ports (Mika Westerberg)
- Remove redundant check of pcie_set_clkpm (Shawn Lin)
Virtualization:
- Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
- Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
- Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
- Add ACS quirk for Solarflare SFC9220 (Edward Cree)
MSI:
- Fix PCI_MSI dependencies (Arnd Bergmann)
- Add pci_msix_desc_addr() helper (Christoph Hellwig)
- Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
- Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
- Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
- Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
Error Handling:
- Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
- Remove DPC tristate module option (Keith Busch)
- Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
Generic host bridge driver:
- Select IRQ_DOMAIN (Arnd Bergmann)
- Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
ACPI host bridge driver:
- Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
- Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
- Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
- Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
Altera host bridge driver:
- Check link status before retrain link (Ley Foon Tan)
- Poll for link up status after retraining the link (Ley Foon Tan)
Axis ARTPEC-6 host bridge driver:
- Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
- Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
- Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
Intel VMD host bridge driver:
- Use lock save/restore in interrupt enable path (Jon Derrick)
- Select device dma ops to override (Keith Busch)
- Initialize list item in IRQ disable (Keith Busch)
- Use x86_vector_domain as parent domain (Keith Busch)
- Separate MSI and MSI-X vector sharing (Keith Busch)
Marvell Aardvark host bridge driver:
- Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
- Add Aardvark PCI host controller driver (Thomas Petazzoni)
- Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
Microsoft Hyper-V host bridge driver:
- Fix interrupt cleanup path (Cathy Avery)
- Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
- Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
NVIDIA Tegra host bridge driver:
- Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
- Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
- Use lower-case hex consistently for register definitions (Thierry Reding)
- Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
- Stop setting pcibios_min_mem (Thierry Reding)
Renesas R-Car host bridge driver:
- Drop gen2 dummy I/O port region (Bjorn Helgaas)
TI DRA7xx host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Xilinx AXI host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Miscellaneous:
- Make bus_attr_resource_alignment static (Ben Dooks)
- Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
- MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
- Make host bridge drivers explicitly non-modular (Paul Gortmaker)"
* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
PCI: xgene: Make explicitly non-modular
PCI: thunder-pem: Make explicitly non-modular
PCI: thunder-ecam: Make explicitly non-modular
PCI: tegra: Make explicitly non-modular
PCI: rcar-gen2: Make explicitly non-modular
PCI: rcar: Make explicitly non-modular
PCI: mvebu: Make explicitly non-modular
PCI: layerscape: Make explicitly non-modular
PCI: keystone: Make explicitly non-modular
PCI: hisi: Make explicitly non-modular
PCI: generic: Make explicitly non-modular
PCI: designware-plat: Make it explicitly non-modular
PCI: artpec6: Make explicitly non-modular
PCI: armada8k: Make explicitly non-modular
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: Add ACS quirk for Solarflare SFC9220
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
...
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Bjorn Helgaas
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9454c23852 |
Merge branch 'pci/msi-affinity' into next
Conflicts: drivers/nvme/host/pci.c |
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Linus Torvalds
|
607e11ab66 |
New LED class driver:
- LED driver for TI LP3952 6-Channel Color LED LED core improvements: - Only descend into leds directory when CONFIG_NEW_LEDS is set - Add no-op gpio_led_register_device when LED subsystem is disabled - MAINTAINERS: Add file patterns for led device tree bindings LED Trigger core improvements: - return error if invalid trigger name is provided via sysfs LED class drivers improvements - is31fl32xx: define complete i2c_device_id table - is31fl32xx: fix typo in id and match table names - leds-gpio: Set of_node for created LED devices - pca9532: Add device tree support Conversion of IDE trigger to common disk trigger: - leds: convert IDE trigger to common disk trigger - leds: documentation: 'ide-disk' to 'disk-activity' - unicore32: use the new LED disk activity trigger - parisc: use the new LED disk activity trigger - mips: use the new LED disk activity trigger - arm: use the new LED disk activity trigger - powerpc: use the new LED disk activity trigger -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iQIcBAABAgAGBQJXlbvcAAoJEL1qUBy3i3wm1NoP/1ujmu9eljBO/0VyyrZNSWvM F367twUAmfyrC+xos/lyxn8u8yknyLNfbUStU0L/cpz2GQRNwuIS4h+xrkyqsDCj JBCKrZQCqi/Hsj6jBuIUW+s0OFjxhBJpEkeYW7FM6i2+O9EUxZvCuuG2WPQBNayx 73qG4RdHmB+qFWMlIp//iF8OviSSm2sd5+UEAJH8mYwrbCcv2gT7UjIaIRczpo4H JTkc/onR6y/qliUUrbLpMr40bJLA4+p9ZkqEGPS4lsKiUKf5SF7bLg59RNebIF75 FZ52yhAw55KLiF0yokthlay8cBUjsd52lROjANkIe1iEHBiKoJRKLOA9WozY37qu 3/9fKcddiPHxVF3ItcwhrldVru2ZxfWFRz/44rCPDTjKEfsuNN/2EkY8aVYCiHpO 8gSXw/HjLPCSQIp6PVcqGSVZd1VWUYKcJY/xvCa3zQi0r7JdAmYUp76KCkmq9FgB DuQTkxM57ndKiz5WqlGU70mzht43/raqzPOQwLMwz5mGKj/nXvNMKFLQ1xhnyfeY vw7D2f/wqm74cTMhMS40IDlpJ81EoCYpsnzvtIHti3FPeo8wmVNz30H51JvFRdJm hzeju1tdSLwazGBIIAtjLSCLpnkaOq7rMwwGndGO5QCO/+A6gAC3iAKe4YFl+AXV CrS9BAdZSslYg+ddJYg6 =8lmX -----END PGP SIGNATURE----- Merge tag 'leds_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED updates from Jacek Anaszewski: "New LED class driver: - LED driver for TI LP3952 6-Channel Color LED LED core improvements: - Only descend into leds directory when CONFIG_NEW_LEDS is set - Add no-op gpio_led_register_device when LED subsystem is disabled - MAINTAINERS: Add file patterns for led device tree bindings LED Trigger core improvements: - return error if invalid trigger name is provided via sysfs LED class drivers improvements - is31fl32xx: define complete i2c_device_id table - is31fl32xx: fix typo in id and match table names - leds-gpio: Set of_node for created LED devices - pca9532: Add device tree support Conversion of IDE trigger to common disk trigger: - leds: convert IDE trigger to common disk trigger - leds: documentation: 'ide-disk' to 'disk-activity' - unicore32: use the new LED disk activity trigger - parisc: use the new LED disk activity trigger - mips: use the new LED disk activity trigger - arm: use the new LED disk activity trigger - powerpc: use the new LED disk activity trigger" * tag 'leds_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: is31fl32xx: define complete i2c_device_id table leds: is31fl32xx: fix typo in id and match table names leds: LED driver for TI LP3952 6-Channel Color LED leds: leds-gpio: Set of_node for created LED devices leds: triggers: return error if invalid trigger name is provided via sysfs leds: Only descend into leds directory when CONFIG_NEW_LEDS is set leds: Add no-op gpio_led_register_device when LED subsystem is disabled unicore32: use the new LED disk activity trigger parisc: use the new LED disk activity trigger mips: use the new LED disk activity trigger arm: use the new LED disk activity trigger powerpc: use the new LED disk activity trigger leds: documentation: 'ide-disk' to 'disk-activity' leds: convert IDE trigger to common disk trigger leds: pca9532: Add device tree support MAINTAINERS: Add file patterns for led device tree bindings |
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Linus Torvalds
|
0e06f5c0de |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
- a few misc bits
- ocfs2
- most(?) of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (125 commits)
thp: fix comments of __pmd_trans_huge_lock()
cgroup: remove unnecessary 0 check from css_from_id()
cgroup: fix idr leak for the first cgroup root
mm: memcontrol: fix documentation for compound parameter
mm: memcontrol: remove BUG_ON in uncharge_list
mm: fix build warnings in <linux/compaction.h>
mm, thp: convert from optimistic swapin collapsing to conservative
mm, thp: fix comment inconsistency for swapin readahead functions
thp: update Documentation/{vm/transhuge,filesystems/proc}.txt
shmem: split huge pages beyond i_size under memory pressure
thp: introduce CONFIG_TRANSPARENT_HUGE_PAGECACHE
khugepaged: add support of collapse for tmpfs/shmem pages
shmem: make shmem_inode_info::lock irq-safe
khugepaged: move up_read(mmap_sem) out of khugepaged_alloc_page()
thp: extract khugepaged from mm/huge_memory.c
shmem, thp: respect MADV_{NO,}HUGEPAGE for file mappings
shmem: add huge pages support
shmem: get_unmapped_area align huge page
shmem: prepare huge= mount option and sysfs knob
mm, rmap: account shmem thp pages
...
|
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Linus Torvalds
|
1cd04d293c |
This is the bulk of GPIO changes for the v4.8 kernel cycle.
Core changes:
- The big item is of course the completion of the character
device ABI. It has now replaced and surpassed the former
unmaintainable sysfs ABI: we can now hammer (bitbang)
individual lines or sets of lines and read individual lines
or sets of lines from userspace, and we can also register
to listen to GPIO events from userspace. As a tie-in we
have two new tools in tools/gpio: gpio-hammer and
gpio-event-mon that illustrate the proper use of the new
ABI. As someone said: the wild west days of GPIO are now
over.
- Continued to remove the pointless
ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB Kconfig symbols.
I'm patching hexagon, openrisc, powerpc, sh, unicore,
ia64 and microblaze. These are either ACKed by their
maintainers or patched anyways after a grace period and
no response from maintainers. Some archs (ARM) come in from
their trees, and others (x86) are still not fixed, so I
might send a second pull request to root it out later in
this merge window, or just defer to v4.9.
- The GPIO tools are moved to the tools build system.
New drivers:
- New driver for the MAX77620/MAX20024.
- New driver for the Intel Merrifield.
- Enabled PCA953x for the TI PCA9536.
- Enabled PCA953x for the Intel Edison.
- Enabled R8A7792 in the RCAR driver.
Driver improvements:
- The STMPE and F7188x now supports the .get_direction()
callback.
- The Xilinx driver supports setting multiple lines at
once.
- ACPI support for the Vulcan GPIO controller.
- The MMIO GPIO driver supports device tree probing.
- The Acer One 10 is supported through the _DEP ACPI
attribute.
Cleanups:
- A major cleanup of the OF/DT support code. It is way
easier to read and understand now, probably this improves
performance too.
- Drop a few redundant .owner assignments.
- Remove CLPS711x boardfile support: we are 100% DT.
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Merge tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.8 kernel cycle. The big
news is the completion of the chardev ABI which I'm very happy about
and apart from that it's an ordinary, quite busy cycle. The details
are below.
The patches are tested in linux-next for some time, patches to other
subsystem mostly have ACKs.
I got overly ambitious with configureing lines as input for IRQ lines
but it turns out that some controllers have their interrupt-enable and
input-enabling in orthogonal settings so the assumption that all IRQ
lines are input lines does not hold. Oh well, revert and back to the
drawing board with that.
Core changes:
- The big item is of course the completion of the character device
ABI. It has now replaced and surpassed the former unmaintainable
sysfs ABI: we can now hammer (bitbang) individual lines or sets of
lines and read individual lines or sets of lines from userspace,
and we can also register to listen to GPIO events from userspace.
As a tie-in we have two new tools in tools/gpio: gpio-hammer and
gpio-event-mon that illustrate the proper use of the new ABI. As
someone said: the wild west days of GPIO are now over.
- Continued to remove the pointless ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
Kconfig symbols. I'm patching hexagon, openrisc, powerpc, sh,
unicore, ia64 and microblaze. These are either ACKed by their
maintainers or patched anyways after a grace period and no response
from maintainers.
Some archs (ARM) come in from their trees, and others (x86) are
still not fixed, so I might send a second pull request to root it
out later in this merge window, or just defer to v4.9.
- The GPIO tools are moved to the tools build system.
New drivers:
- New driver for the MAX77620/MAX20024.
- New driver for the Intel Merrifield.
- Enabled PCA953x for the TI PCA9536.
- Enabled PCA953x for the Intel Edison.
- Enabled R8A7792 in the RCAR driver.
Driver improvements:
- The STMPE and F7188x now supports the .get_direction() callback.
- The Xilinx driver supports setting multiple lines at once.
- ACPI support for the Vulcan GPIO controller.
- The MMIO GPIO driver supports device tree probing.
- The Acer One 10 is supported through the _DEP ACPI attribute.
Cleanups:
- A major cleanup of the OF/DT support code. It is way easier to
read and understand now, probably this improves performance too.
- Drop a few redundant .owner assignments.
- Remove CLPS711x boardfile support: we are 100% DT"
* tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (67 commits)
MAINTAINERS: Add INTEL MERRIFIELD GPIO entry
gpio: dwapb: add missing fwnode_handle_put() in dwapb_gpio_get_pdata()
gpio: merrifield: Protect irq_ack() and gpio_set() by lock
gpio: merrifield: Introduce GPIO driver to support Merrifield
gpio: intel-mid: Make it depend to X86_INTEL_MID
gpio: intel-mid: Sort header block alphabetically
gpio: intel-mid: Remove potentially harmful code
gpio: rcar: add R8A7792 support
gpiolib: remove duplicated include from gpiolib.c
Revert "gpio: convince line to become input in irq helper"
gpiolib: of_find_gpio(): Don't discard errors
gpio: of: Allow overriding the device node
gpio: free handles in fringe cases
gpio: tps65218: Add platform_device_id table
gpio: max77620: get gpio value based on direction
gpio: lynxpoint: avoid potential warning on error path
tools/gpio: add install section
tools/gpio: move to tools buildsystem
gpio: intel-mid: switch to devm_gpiochip_add_data()
gpio: 74x164: Use spi_write() helper instead of open coding
...
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Kirill A. Shutemov
|
dcddffd41d |
mm: do not pass mm_struct into handle_mm_fault
We always have vma->vm_mm around. Link: http://lkml.kernel.org/r/1466021202-61880-8-git-send-email-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Stephan Linz
|
fed758f6b7 |
unicore32: use the new LED disk activity trigger
- platform: rename 'ide-disk' to 'disk-activity' - defconfig: rename 'LEDS_TRIGGER_IDE_DISK' to 'LEDS_TRIGGER_DISK' Signed-off-by: Stephan Linz <linz@li-pro.net> Acked-by: GUAN Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> |
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Michal Hocko
|
a830627b01 |
unicore32: get rid of superfluous __GFP_REPEAT
__GFP_REPEAT has a rather weak semantic but since it has been introduced around 2.6.12 it has been ignored for low order allocations. PGALLOC_GFP uses __GFP_REPEAT but it is only used in pte_alloc_one, pte_alloc_one_kernel which does order-0 request. This means that this flag has never been actually useful here because it has always been used only for PAGE_ALLOC_COSTLY requests. Link: http://lkml.kernel.org/r/1464599699-30131-17-git-send-email-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Bjorn Helgaas
|
ab2b750cad |
unicore32/PCI: Remove pci=firmware command line parameter handling
Remove support for the "pci=firmware" command line parameter, which was
way to keep the kernel from changing any PCI BAR assignments. This was
copied from ARM, but is not actually needed on unicore32.
The corresponding ARM support was removed by
|
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Linus Walleij
|
c40d54a184 |
unicore: do away with ARCH_REQUIRE_GPIOLIB
Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
|
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Linus Torvalds
|
5b26fc8824 |
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek: - new option CONFIG_TRIM_UNUSED_KSYMS which does a two-pass build and unexports symbols which are not used in the current config [Nicolas Pitre] - several kbuild rule cleanups [Masahiro Yamada] - warning option adjustments for gcov etc [Arnd Bergmann] - a few more small fixes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (31 commits) kbuild: move -Wunused-const-variable to W=1 warning level kbuild: fix if_change and friends to consider argument order kbuild: fix adjust_autoksyms.sh for modules that need only one symbol kbuild: fix ksym_dep_filter when multiple EXPORT_SYMBOL() on the same line gcov: disable -Wmaybe-uninitialized warning gcov: disable tree-loop-im to reduce stack usage gcov: disable for COMPILE_TEST Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHES Kbuild: change CC_OPTIMIZE_FOR_SIZE definition kbuild: forbid kernel directory to contain spaces and colons kbuild: adjust ksym_dep_filter for some cmd_* renames kbuild: Fix dependencies for final vmlinux link kbuild: better abstract vmlinux sequential prerequisites kbuild: fix call to adjust_autoksyms.sh when output directory specified kbuild: Get rid of KBUILD_STR kbuild: rename cmd_as_s_S to cmd_cpp_s_S kbuild: rename cmd_cc_i_c to cmd_cpp_i_c kbuild: drop redundant "PHONY += FORCE" kbuild: delete unnecessary "@:" kbuild: mark help target as PHONY ... |
|
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Linus Torvalds
|
d04f90ffec |
asm-generic patch for 4.7
I have only one patch for asm-generic in this release, this one is from James Hogan and updates the generic system call table for renameat2 so we don't need to provide both renameat and renameat2 in newly added architectures. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUAV0SqqmCrR//JCVInAQLAWBAAwP7tijdUi2kmqyvYUV/r08n3G0JoHzfT 2bFfl0N0aCu7eglyraXdCjGLATrRt9t50CYtFHtg/6pNVB2kYGdouIMy6RVcDtGn fGPE5trCZMLGpGQ29NaSlJplW/293X/BkoZ0ERHpEHhNfIBGZf/WeM0YvJI086sk XZ0tByw5q+pNjBjbB59KFQ8iKRtwIBk4bnrnbSWCmLUMSF+zY54zxkbAqTqJGpA7 sQuidOZ8p2Daol2nMOAgLuFdVbqOuYOsW33LMDnjJD54VU3kxBlWrPFbaJs93ask fkKVg2KAlDQFE0bAWzXtYaIPBPSHjC4GO/QbvUQJNgYMLQRjskx/GBYxMNDcPVrR wGbyitCIhnwWn1ch/DIdpQ8bNgMI5/5zhrVBhLpiBQypy5L2BJOk3yPhWvwOhR2B Bacaqpk0Ydz5VjSsR30iERnZ7hGv7XX8pAOk5Slu3wAyw7EmZ5g6OqfcUX9OBHLZ xfc7IELlRr0EFY30gGPXwmqM5GeC9ibt4cY6uNVQklDCRqbU9I90bmSm5Rps83P4 AmjDM95v7IT7aVN+KSRW1PTijEt64Z0FNacf0Hps6d5NUYtk/pxxbWOzl8zKW0Z4 yNHaX+TcuyCfPcaZR0xddV8KXCnptEaDY2yrJAL5vWKfazQQVO736F3ExSJTcrRE QKASfkYpTAQ= =ae81 -----END PGP SIGNATURE----- Merge tag 'asm-generic-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic cleanup from Arnd Bergmann: "I have only one patch for asm-generic in this release, this one is from James Hogan and updates the generic system call table for renameat2 so we don't need to provide both renameat and renameat2 in newly added architectures" * tag 'asm-generic-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: Drop renameat syscall from default list |
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Jiri Slaby
|
5f56a5dfdb |
exit_thread: remove empty bodies
Define HAVE_EXIT_THREAD for archs which want to do something in exit_thread. For others, let's define exit_thread as an empty inline. This is a cleanup before we change the prototype of exit_thread to accept a task parameter. [akpm@linux-foundation.org: fix mips] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: "David S. Miller" <davem@davemloft.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Howells <dhowells@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Jonas Bonn <jonas@southpole.se> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Mikael Starvik <starvik@axis.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Rich Felker <dalias@libc.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@arm.linux.org.uk> Cc: Steven Miao <realmz6@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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James Hogan
|
b0da6d4415 |
asm-generic: Drop renameat syscall from default list
The newer renameat2 syscall provides all the functionality provided by the renameat syscall and adds flags, so future architectures won't need to include renameat. Therefore drop the renameat syscall from the generic syscall list unless __ARCH_WANT_RENAMEAT is defined by the architecture's unistd.h prior to including asm-generic/unistd.h, and adjust all architectures using the generic syscall list to define it so that no in-tree architectures are affected. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Cc: linux-arch@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: linux-c6x-dev@linux-c6x.org Cc: Richard Kuo <rkuo@codeaurora.org> Cc: linux-hexagon@vger.kernel.org Cc: linux-metag@vger.kernel.org Cc: Jonas Bonn <jonas@southpole.se> Cc: linux@lists.openrisc.net Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ley Foon Tan <lftan@altera.com> Cc: nios2-dev@lists.rocketboards.org Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: uclinux-h8-devel@lists.sourceforge.jp Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Masahiro Yamada
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1c44b28dfe |
kbuild: drop redundant "PHONY += FORCE"
"PHONY += FORCE" is already cared by scripts/Makefile.build, which these files are included from. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Michal Marek <mmarek@suse.com> |
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Masahiro Yamada
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be1fb0e8eb |
kbuild: delete unnecessary "@:"
Since commit
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Linus Walleij
|
fd19f534ab |
unicore32: gpio: switch to gpiochip_add_data()
We're planning to remove the gpiochip_add() function to swith to gpiochip_add_data() with NULL for data argument. Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Linus Torvalds
|
643ad15d47 |
Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 protection key support from Ingo Molnar:
"This tree adds support for a new memory protection hardware feature
that is available in upcoming Intel CPUs: 'protection keys' (pkeys).
There's a background article at LWN.net:
https://lwn.net/Articles/643797/
The gist is that protection keys allow the encoding of
user-controllable permission masks in the pte. So instead of having a
fixed protection mask in the pte (which needs a system call to change
and works on a per page basis), the user can map a (handful of)
protection mask variants and can change the masks runtime relatively
cheaply, without having to change every single page in the affected
virtual memory range.
This allows the dynamic switching of the protection bits of large
amounts of virtual memory, via user-space instructions. It also
allows more precise control of MMU permission bits: for example the
executable bit is separate from the read bit (see more about that
below).
This tree adds the MM infrastructure and low level x86 glue needed for
that, plus it adds a high level API to make use of protection keys -
if a user-space application calls:
mmap(..., PROT_EXEC);
or
mprotect(ptr, sz, PROT_EXEC);
(note PROT_EXEC-only, without PROT_READ/WRITE), the kernel will notice
this special case, and will set a special protection key on this
memory range. It also sets the appropriate bits in the Protection
Keys User Rights (PKRU) register so that the memory becomes unreadable
and unwritable.
So using protection keys the kernel is able to implement 'true'
PROT_EXEC on x86 CPUs: without protection keys PROT_EXEC implies
PROT_READ as well. Unreadable executable mappings have security
advantages: they cannot be read via information leaks to figure out
ASLR details, nor can they be scanned for ROP gadgets - and they
cannot be used by exploits for data purposes either.
We know about no user-space code that relies on pure PROT_EXEC
mappings today, but binary loaders could start making use of this new
feature to map binaries and libraries in a more secure fashion.
There is other pending pkeys work that offers more high level system
call APIs to manage protection keys - but those are not part of this
pull request.
Right now there's a Kconfig that controls this feature
(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) that is default enabled
(like most x86 CPU feature enablement code that has no runtime
overhead), but it's not user-configurable at the moment. If there's
any serious problem with this then we can make it configurable and/or
flip the default"
* 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
x86/mm/pkeys: Fix mismerge of protection keys CPUID bits
mm/pkeys: Fix siginfo ABI breakage caused by new u64 field
x86/mm/pkeys: Fix access_error() denial of writes to write-only VMA
mm/core, x86/mm/pkeys: Add execute-only protection keys support
x86/mm/pkeys: Create an x86 arch_calc_vm_prot_bits() for VMA flags
x86/mm/pkeys: Allow kernel to modify user pkey rights register
x86/fpu: Allow setting of XSAVE state
x86/mm: Factor out LDT init from context init
mm/core, x86/mm/pkeys: Add arch_validate_pkey()
mm/core, arch, powerpc: Pass a protection key in to calc_vm_flag_bits()
x86/mm/pkeys: Actually enable Memory Protection Keys in the CPU
x86/mm/pkeys: Add Kconfig prompt to existing config option
x86/mm/pkeys: Dump pkey from VMA in /proc/pid/smaps
x86/mm/pkeys: Dump PKRU with other kernel registers
mm/core, x86/mm/pkeys: Differentiate instruction fetches
x86/mm/pkeys: Optimize fault handling in access_error()
mm/core: Do not enforce PKEY permissions on remote mm access
um, pkeys: Add UML arch_*_access_permitted() methods
mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys
x86/mm/gup: Simplify get_user_pages() PTE bit handling
...
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Linus Torvalds
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1200b6809d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
1) Support more Realtek wireless chips, from Jes Sorenson.
2) New BPF types for per-cpu hash and arrap maps, from Alexei
Starovoitov.
3) Make several TCP sysctls per-namespace, from Nikolay Borisov.
4) Allow the use of SO_REUSEPORT in order to do per-thread processing
of incoming TCP/UDP connections. The muxing can be done using a
BPF program which hashes the incoming packet. From Craig Gallek.
5) Add a multiplexer for TCP streams, to provide a messaged based
interface. BPF programs can be used to determine the message
boundaries. From Tom Herbert.
6) Add 802.1AE MACSEC support, from Sabrina Dubroca.
7) Avoid factorial complexity when taking down an inetdev interface
with lots of configured addresses. We were doing things like
traversing the entire address less for each address removed, and
flushing the entire netfilter conntrack table for every address as
well.
8) Add and use SKB bulk free infrastructure, from Jesper Brouer.
9) Allow offloading u32 classifiers to hardware, and implement for
ixgbe, from John Fastabend.
10) Allow configuring IRQ coalescing parameters on a per-queue basis,
from Kan Liang.
11) Extend ethtool so that larger link mode masks can be supported.
From David Decotigny.
12) Introduce devlink, which can be used to configure port link types
(ethernet vs Infiniband, etc.), port splitting, and switch device
level attributes as a whole. From Jiri Pirko.
13) Hardware offload support for flower classifiers, from Amir Vadai.
14) Add "Local Checksum Offload". Basically, for a tunneled packet
the checksum of the outer header is 'constant' (because with the
checksum field filled into the inner protocol header, the payload
of the outer frame checksums to 'zero'), and we can take advantage
of that in various ways. From Edward Cree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
bonding: fix bond_get_stats()
net: bcmgenet: fix dma api length mismatch
net/mlx4_core: Fix backward compatibility on VFs
phy: mdio-thunder: Fix some Kconfig typos
lan78xx: add ndo_get_stats64
lan78xx: handle statistics counter rollover
RDS: TCP: Remove unused constant
RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
net: smc911x: convert pxa dma to dmaengine
team: remove duplicate set of flag IFF_MULTICAST
bonding: remove duplicate set of flag IFF_MULTICAST
net: fix a comment typo
ethernet: micrel: fix some error codes
ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
bpf, dst: add and use dst_tclassid helper
bpf: make skb->tc_classid also readable
net: mvneta: bm: clarify dependencies
cls_bpf: reset class and reuse major in da
ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
ldmvsw: Add ldmvsw.c driver code
...
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Linus Torvalds
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814a2bf957 |
Merge branch 'akpm' (patches from Andrew)
Merge second patch-bomb from Andrew Morton: - a couple of hotfixes - the rest of MM - a new timer slack control in procfs - a couple of procfs fixes - a few misc things - some printk tweaks - lib/ updates, notably to radix-tree. - add my and Nick Piggin's old userspace radix-tree test harness to tools/testing/radix-tree/. Matthew said it was a godsend during the radix-tree work he did. - a few code-size improvements, switching to __always_inline where gcc screwed up. - partially implement character sets in sscanf * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits) sscanf: implement basic character sets lib/bug.c: use common WARN helper param: convert some "on"/"off" users to strtobool lib: add "on"/"off" support to kstrtobool lib: update single-char callers of strtobool() lib: move strtobool() to kstrtobool() include/linux/unaligned: force inlining of byteswap operations include/uapi/linux/byteorder, swab: force inlining of some byteswap operations include/asm-generic/atomic-long.h: force inlining of some atomic_long operations usb: common: convert to use match_string() helper ide: hpt366: convert to use match_string() helper ata: hpt366: convert to use match_string() helper power: ab8500: convert to use match_string() helper power: charger_manager: convert to use match_string() helper drm/edid: convert to use match_string() helper pinctrl: convert to use match_string() helper device property: convert to use match_string() helper lib/string: introduce match_string() helper radix-tree tests: add test for radix_tree_iter_next radix-tree tests: add regression3 test ... |
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Linus Torvalds
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1a46712aa9 |
This is the bulk of GPIO changes for kernel v4.6:
Core changes:
- The gpio_chip is now a *real device*. Until now the gpio chips
were just piggybacking the parent device or (gasp) floating in
space outside of the device model. We now finally make GPIO chips
devices. The gpio_chip will create a gpio_device which contains
a struct device, and this gpio_device struct is kept private.
Anything that needs to be kept private from the rest of the kernel
will gradually be moved over to the gpio_device.
- As a result of making the gpio_device a real device, we have added
resource management, so devm_gpiochip_add_data() will cut down on
overhead and reduce code lines. A huge slew of patches convert
almost all drivers in the subsystem to use this.
- Building on making the GPIO a real device, we add the first step
of a new userspace ABI: the GPIO character device. We take small
steps here, so we first add a pure *information* ABI and the tool
"lsgpio" that will list all GPIO devices on the system and all
lines on these devices. We can now discover GPIOs properly from
userspace. We still have not come up with a way to actually *use*
GPIOs from userspace.
- To encourage people to use the character device for the future,
we have it always-enabled when using GPIO. The old sysfs ABI is
still opt-in (and can be used in parallel), but is marked as
deprecated. We will keep it around for the foreseeable future,
but it will not be extended to cover ever more use cases.
Cleanup:
- Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
includes. This dates back to when GPIO was an opt-in feature and
no shared library even existed: just a header file with proper
prototypes was provided and all semantics were up to the arch to
implement. These patches make the GPIO chip even more a proper
device and cleans out leftovers of the old in-kernel API here
and there. Still some cruft is left but it's very little now.
- There is still some clamping of return values for .get() going
on, but we now return sane values in the vast majority of drivers
and the errorpath is sanitized. Some patches for powerpc, blackfin
and unicore still drop in.
- We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
implementations to use gpiochip_add_data() and cut down on code
lines.
- MPC8xxx is converted to use the generic GPIO helpers.
- ATH79 is converted to use the generic GPIO helpers.
New drivers:
- WinSystems WS16C48
- Acces 104-DIO-48E
- F81866 (a F7188x variant)
- Qoric (a MPC8xxx variant)
- TS-4800
- SPI serializers (pisosr): simple 74xx shift registers connected
to SPI to obtain a dirt-cheap output-only GPIO expander.
- Texas Instruments TPIC2810
- Texas Instruments TPS65218
- Texas Instruments TPS65912
- X-Gene (ARM64) standby GPIO controller
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Merge tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for kernel v4.6. There is quite a
lot of interesting stuff going on.
The patches to other subsystems and arch-wide are ACKed as far as
possible, though I consider things like per-arch <asm/gpio.h> as
essentially a part of the GPIO subsystem so it should not be needed.
Core changes:
- The gpio_chip is now a *real device*. Until now the gpio chips
were just piggybacking the parent device or (gasp) floating in
space outside of the device model.
We now finally make GPIO chips devices. The gpio_chip will create
a gpio_device which contains a struct device, and this gpio_device
struct is kept private. Anything that needs to be kept private
from the rest of the kernel will gradually be moved over to the
gpio_device.
- As a result of making the gpio_device a real device, we have added
resource management, so devm_gpiochip_add_data() will cut down on
overhead and reduce code lines. A huge slew of patches convert
almost all drivers in the subsystem to use this.
- Building on making the GPIO a real device, we add the first step of
a new userspace ABI: the GPIO character device. We take small
steps here, so we first add a pure *information* ABI and the tool
"lsgpio" that will list all GPIO devices on the system and all
lines on these devices.
We can now discover GPIOs properly from userspace. We still have
not come up with a way to actually *use* GPIOs from userspace.
- To encourage people to use the character device for the future, we
have it always-enabled when using GPIO. The old sysfs ABI is still
opt-in (and can be used in parallel), but is marked as deprecated.
We will keep it around for the foreseeable future, but it will not
be extended to cover ever more use cases.
Cleanup:
- Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
includes.
This dates back to when GPIO was an opt-in feature and no shared
library even existed: just a header file with proper prototypes was
provided and all semantics were up to the arch to implement. These
patches make the GPIO chip even more a proper device and cleans out
leftovers of the old in-kernel API here and there.
Still some cruft is left but it's very little now.
- There is still some clamping of return values for .get() going on,
but we now return sane values in the vast majority of drivers and
the errorpath is sanitized. Some patches for powerpc, blackfin and
unicore still drop in.
- We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
implementations to use gpiochip_add_data() and cut down on code
lines.
- MPC8xxx is converted to use the generic GPIO helpers.
- ATH79 is converted to use the generic GPIO helpers.
New drivers:
- WinSystems WS16C48
- Acces 104-DIO-48E
- F81866 (a F7188x variant)
- Qoric (a MPC8xxx variant)
- TS-4800
- SPI serializers (pisosr): simple 74xx shift registers connected to
SPI to obtain a dirt-cheap output-only GPIO expander.
- Texas Instruments TPIC2810
- Texas Instruments TPS65218
- Texas Instruments TPS65912
- X-Gene (ARM64) standby GPIO controller"
* tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits)
Revert "Share upstreaming patches"
gpio: mcp23s08: Fix clearing of interrupt.
gpiolib: Fix comment referring to gpio_*() in gpiod_*()
gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit
gpio: xgene: Fix kconfig for standby GIPO contoller
gpio: Add generic serializer DT binding
gpio: uapi: use 0xB4 as ioctl() major
gpio: tps65912: fix bad merge
Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
gpio: omap: drop dev field from gpio_bank structure
gpio: mpc8xxx: Slightly update the code for better readability
gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip
gpio: mpc8xxx: Fixup setting gpio direction output
gpio: mcp23s08: Add support for mcp23s18
dt-bindings: gpio: altera: Fix altr,interrupt-type property
gpio: add driver for MEN 16Z127 GPIO controller
gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free
gpio: timberdale: Switch to devm_ioremap_resource()
gpio: ts4800: Add IMX51 dependency
gpiolib: rewrite gpiodev_add_to_list
...
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Jan Kara
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0e8fb9312f |
mm: remove VM_FAULT_MINOR
The define has a comment from Nick Piggin from 2007: /* For backwards compat. Remove me quickly. */ I guess 9 years should not be too hurried sense of 'quickly' even for kernel measures. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Kirill A. Shutemov
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3ed3a4f0dd |
mm: cleanup *pte_alloc* interfaces
There are few things about *pte_alloc*() helpers worth cleaning up: - 'vma' argument is unused, let's drop it; - most __pte_alloc() callers do speculative check for pmd_none(), before taking ptl: let's introduce pte_alloc() macro which does the check. The only direct user of __pte_alloc left is userfaultfd, which has different expectation about atomicity wrt pmd. - pte_alloc_map() and pte_alloc_map_lock() are redefined using pte_alloc(). [sudeep.holla@arm.com: fix build for arm64 hugetlbpage] [sfr@canb.auug.org.au: fix arch/arm/mm/mmu.c some more] Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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63e30271b0 |
PCI changes for the v4.6 merge window:
Enumeration
Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas)
Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas
Resource management
Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
Don't assign or reassign immutable resources (Bjorn Helgaas)
Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas)
Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas)
Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas)
ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas)
ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas)
Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas)
rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
Virtualization
Wait for up to 1000ms after FLR reset (Alex Williamson)
Support SR-IOV on any function type (Kelly Zytaruk)
Add ACS quirk for all Cavium devices (Manish Jaggi)
AER
Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas)
Restore pci_ops pointer while calling original pci_ops (David Daney)
Fix aer_inject error codes (Jean Delvare)
Use dev_warn() in aer_inject (Jean Delvare)
Log actual error causes in aer_inject (Jean Delvare)
Log aer_inject error injections (Jean Delvare)
VPD
Prevent VPD access for buggy devices (Babu Moger)
Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas)
Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas)
Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas)
Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas)
Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas)
Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas)
Update VPD definitions (Hannes Reinecke)
Allow access to VPD attributes with size 0 (Hannes Reinecke)
Determine actual VPD size on first access (Hannes Reinecke)
Generic host bridge driver
Move structure definitions to separate header file (David Daney)
Add pci_host_common_probe(), based on gen_pci_probe() (David Daney)
Expose pci_host_common_probe() for use by other drivers (David Daney)
Altera host bridge driver
Fix altera_pcie_link_is_up() (Ley Foon Tan)
Cavium ThunderX host bridge driver
Add PCIe host driver for ThunderX processors (David Daney)
Add driver for ThunderX-pass{1,2} on-chip devices (David Daney)
Freescale i.MX6 host bridge driver
Add DT bindings to configure PHY Tx driver settings (Justin Waters)
Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach)
Move PHY reset into imx6_pcie_establish_link() (Lucas Stach)
Remove broken Gen2 workaround (Lucas Stach)
Move link up check into imx6_pcie_wait_for_link() (Lucas Stach)
Freescale Layerscape host bridge driver
Add "fsl,ls2085a-pcie" compatible ID (Yang Shi)
Intel VMD host bridge driver
Attach VMD resources to parent domain's resource tree (Jon Derrick)
Set bus resource start to 0 (Keith Busch)
Microsoft Hyper-V host bridge driver
Add fwnode_handle to x86 pci_sysdata (Jake Oshins)
Look up IRQ domain by fwnode_handle (Jake Oshins)
Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins)
NVIDIA Tegra host bridge driver
Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding)
Implement ->{add,remove}_bus() callbacks (Thierry Reding)
Remove unused struct tegra_pcie.num_ports field (Thierry Reding)
Track bus -> CPU mapping (Thierry Reding)
Remove misleading PHYS_OFFSET (Thierry Reding)
Renesas R-Car host bridge driver
Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman)
Synopsys DesignWare host bridge driver
ARC: Add PCI support (Joao Pinto)
Add generic dw_pcie_wait_for_link() (Joao Pinto)
Add default link up check if sub-driver doesn't override (Joao Pinto)
Add driver for prototyping kits based on ARC SDP (Joao Pinto)
TI Keystone host bridge driver
Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin)
Xilinx AXI host bridge driver
Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada)
Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada)
Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada)
Update Zynq binding with Microblaze node (Bharat Kumar Gogada)
microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada)
Xilinx NWL host bridge driver
Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada)
Miscellaneous
Check device_attach() return value always (Bjorn Helgaas)
Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas)
Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas)
ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas)
Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas)
Remove includes of asm/pci-bridge.h (Bjorn Helgaas)
Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas)
unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas)
Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler)
Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas)
Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa)
frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig)
Move pci_dma_* helpers to common code (Christoph Hellwig)
Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus)
Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson)
Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)
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Merge tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"PCI changes for v4.6:
Enumeration:
- Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas)
- Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas
Resource management:
- Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
- Don't assign or reassign immutable resources (Bjorn Helgaas)
- Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas)
- Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas)
- Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas)
- ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas)
- ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
- MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
- Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas)
- Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas)
- rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
- designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
Virtualization:
- Wait for up to 1000ms after FLR reset (Alex Williamson)
- Support SR-IOV on any function type (Kelly Zytaruk)
- Add ACS quirk for all Cavium devices (Manish Jaggi)
AER:
- Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas)
- Restore pci_ops pointer while calling original pci_ops (David Daney)
- Fix aer_inject error codes (Jean Delvare)
- Use dev_warn() in aer_inject (Jean Delvare)
- Log actual error causes in aer_inject (Jean Delvare)
- Log aer_inject error injections (Jean Delvare)
VPD:
- Prevent VPD access for buggy devices (Babu Moger)
- Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas)
- Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas)
- Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas)
- Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas)
- Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas)
- Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas)
- Update VPD definitions (Hannes Reinecke)
- Allow access to VPD attributes with size 0 (Hannes Reinecke)
- Determine actual VPD size on first access (Hannes Reinecke)
Generic host bridge driver:
- Move structure definitions to separate header file (David Daney)
- Add pci_host_common_probe(), based on gen_pci_probe() (David Daney)
- Expose pci_host_common_probe() for use by other drivers (David Daney)
Altera host bridge driver:
- Fix altera_pcie_link_is_up() (Ley Foon Tan)
Cavium ThunderX host bridge driver:
- Add PCIe host driver for ThunderX processors (David Daney)
- Add driver for ThunderX-pass{1,2} on-chip devices (David Daney)
Freescale i.MX6 host bridge driver:
- Add DT bindings to configure PHY Tx driver settings (Justin Waters)
- Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach)
- Move PHY reset into imx6_pcie_establish_link() (Lucas Stach)
- Remove broken Gen2 workaround (Lucas Stach)
- Move link up check into imx6_pcie_wait_for_link() (Lucas Stach)
Freescale Layerscape host bridge driver:
- Add "fsl,ls2085a-pcie" compatible ID (Yang Shi)
Intel VMD host bridge driver:
- Attach VMD resources to parent domain's resource tree (Jon Derrick)
- Set bus resource start to 0 (Keith Busch)
Microsoft Hyper-V host bridge driver:
- Add fwnode_handle to x86 pci_sysdata (Jake Oshins)
- Look up IRQ domain by fwnode_handle (Jake Oshins)
- Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins)
NVIDIA Tegra host bridge driver:
- Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding)
- Implement ->{add,remove}_bus() callbacks (Thierry Reding)
- Remove unused struct tegra_pcie.num_ports field (Thierry Reding)
- Track bus -> CPU mapping (Thierry Reding)
- Remove misleading PHYS_OFFSET (Thierry Reding)
Renesas R-Car host bridge driver:
- Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman)
Synopsys DesignWare host bridge driver:
- ARC: Add PCI support (Joao Pinto)
- Add generic dw_pcie_wait_for_link() (Joao Pinto)
- Add default link up check if sub-driver doesn't override (Joao Pinto)
- Add driver for prototyping kits based on ARC SDP (Joao Pinto)
TI Keystone host bridge driver:
- Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin)
Xilinx AXI host bridge driver:
- Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada)
- Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada)
- Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada)
- Update Zynq binding with Microblaze node (Bharat Kumar Gogada)
- microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada)
Xilinx NWL host bridge driver:
- Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada)
Miscellaneous:
- Check device_attach() return value always (Bjorn Helgaas)
- Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas)
- Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas)
- ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas)
- Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas)
- Remove includes of asm/pci-bridge.h (Bjorn Helgaas)
- Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas)
- unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas)
- Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler)
- Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas)
- Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa)
- frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig)
- Move pci_dma_* helpers to common code (Christoph Hellwig)
- Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus)
- Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson)
- Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)"
* tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition
PCI: designware: Add driver for prototyping kits based on ARC SDP
PCI: designware: Add default link up check if sub-driver doesn't override
PCI: designware: Add generic dw_pcie_wait_for_link()
PCI: Cleanup pci/pcie/Kconfig whitespace
PCI: Simplify pci_create_attr() control flow
PCI: Don't leak memory if sysfs_create_bin_file() fails
PCI: Simplify sysfs ROM cleanup
PCI: Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY
MIPS: Loongson 3: Keep CPU physical (not virtual) addresses in shadow ROM resource
MIPS: Loongson 3: Use temporary struct resource * to avoid repetition
ia64/PCI: Keep CPU physical (not virtual) addresses in shadow ROM resource
ia64/PCI: Use ioremap() instead of open-coded equivalent
ia64/PCI: Use temporary struct resource * to avoid repetition
PCI: Clean up pci_map_rom() whitespace
PCI: Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs
PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
PCI: thunder: Add PCIe host driver for ThunderX processors
PCI: generic: Expose pci_host_common_probe() for use by other drivers
PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()
...
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Alexander Duyck
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01cfbad79a |
ipv4: Update parameters for csum_tcpudp_magic to their original types
This patch updates all instances of csum_tcpudp_magic and csum_tcpudp_nofold to reflect the types that are usually used as the source inputs. For example the protocol field is populated based on nexthdr which is actually an unsigned 8 bit value. The length is usually populated based on skb->len which is an unsigned integer. This addresses an issue in which the IPv6 function csum_ipv6_magic was generating a checksum using the full 32b of skb->len while csum_tcpudp_magic was only using the lower 16 bits. As a result we could run into issues when attempting to adjust the checksum as there was no protocol agnostic way to update it. With this change the value is still truncated as many architectures use "(len + proto) << 8", however this truncation only occurs for values greater than 16776960 in length and as such is unlikely to occur as we stop the inner headers at ~64K in size. I did have to make a few minor changes in the arm, mn10300, nios2, and score versions of the function in order to support these changes as they were either using things such as an OR to combine the protocol and length, or were using ntohs to convert the length which would have truncated the value. I also updated a few spots in terms of whitespace and type differences for the addresses. Most of this was just to make sure all of the definitions were in sync going forward. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Bjorn Helgaas
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9289b9d3aa |
unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition
HAVE_ARCH_PCI_SET_DMA_MASK is unused, so remove the #define for it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: GUAN Xuetao <gxt@mprc.pku.edu.cn> |
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Christoph Hellwig
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bc4b024a8b |
PCI: Move pci_dma_* helpers to common code
For a long time all architectures implement the pci_dma_* functions using the generic DMA API, and they all use the same header to do so. Move this header, pci-dma-compat.h, to include/linux and include it from the generic pci.h instead of having each arch duplicate this include. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Dave Hansen
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1b2ee1266e |
mm/core: Do not enforce PKEY permissions on remote mm access
We try to enforce protection keys in software the same way that we do in hardware. (See long example below). But, we only want to do this when accessing our *own* process's memory. If GDB set PKRU[6].AD=1 (disable access to PKEY 6), then tried to PTRACE_POKE a target process which just happened to have some mprotect_pkey(pkey=6) memory, we do *not* want to deny the debugger access to that memory. PKRU is fundamentally a thread-local structure and we do not want to enforce it on access to _another_ thread's data. This gets especially tricky when we have workqueues or other delayed-work mechanisms that might run in a random process's context. We can check that we only enforce pkeys when operating on our *own* mm, but delayed work gets performed when a random user context is active. We might end up with a situation where a delayed-work gup fails when running randomly under its "own" task but succeeds when running under another process. We want to avoid that. To avoid that, we use the new GUP flag: FOLL_REMOTE and add a fault flag: FAULT_FLAG_REMOTE. They indicate that we are walking an mm which is not guranteed to be the same as current->mm and should not be subject to protection key enforcement. Thanks to Jerome Glisse for pointing out this scenario. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boaz Harrosh <boaz@plexistor.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Chinner <dchinner@redhat.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Dominik Dingel <dingel@linux.vnet.ibm.com> Cc: Dominik Vogt <vogt@linux.vnet.ibm.com> Cc: Eric B Munson <emunson@akamai.com> Cc: Geliang Tang <geliangtang@163.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Jason Low <jason.low2@hp.com> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Laurent Dufour <ldufour@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Shachar Raindel <raindel@mellanox.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Xie XiuQi <xiexiuqi@huawei.com> Cc: iommu@lists.linux-foundation.org Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: linux-s390@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Dave Hansen
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33a709b25a |
mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys
Today, for normal faults and page table walks, we check the VMA and/or PTE to ensure that it is compatible with the action. For instance, if we get a write fault on a non-writeable VMA, we SIGSEGV. We try to do the same thing for protection keys. Basically, we try to make sure that if a user does this: mprotect(ptr, size, PROT_NONE); *ptr = foo; they see the same effects with protection keys when they do this: mprotect(ptr, size, PROT_READ|PROT_WRITE); set_pkey(ptr, size, 4); wrpkru(0xffffff3f); // access disable pkey 4 *ptr = foo; The state to do that checking is in the VMA, but we also sometimes have to do it on the page tables only, like when doing a get_user_pages_fast() where we have no VMA. We add two functions and expose them to generic code: arch_pte_access_permitted(pte_flags, write) arch_vma_access_permitted(vma, write) These are, of course, backed up in x86 arch code with checks against the PTE or VMA's protection key. But, there are also cases where we do not want to respect protection keys. When we ptrace(), for instance, we do not want to apply the tracer's PKRU permissions to the PTEs from the process being traced. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boaz Harrosh <boaz@plexistor.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave@sr71.net> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: David Hildenbrand <dahi@linux.vnet.ibm.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Dominik Dingel <dingel@linux.vnet.ibm.com> Cc: Dominik Vogt <vogt@linux.vnet.ibm.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Low <jason.low2@hp.com> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Laurent Dufour <ldufour@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Shachar Raindel <raindel@mellanox.com> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: linux-s390@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20160212210219.14D5D715@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Bjorn Helgaas
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5bd28338d6 |
PCI: Remove includes of empty asm-generic/pci-bridge.h
include/asm-generic/pci-bridge.h is now empty, so remove every #include of it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Will Deacon <will.deacon@arm.com> (arm64) |
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Toshi Kani
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35d98e93fe |
arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM
Set IORESOURCE_SYSTEM_RAM in flags of resource ranges with "System RAM", "Kernel code", "Kernel data", and "Kernel bss". Note that: - IORESOURCE_SYSRAM (i.e. modifier bit) is set in flags when IORESOURCE_MEM is already set. IORESOURCE_SYSTEM_RAM is defined as (IORESOURCE_MEM|IORESOURCE_SYSRAM). - Some archs do not set 'flags' for children nodes, such as "Kernel code". This patch does not change 'flags' in this case. Signed-off-by: Toshi Kani <toshi.kani@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Toshi Kani <toshi.kani@hp.com> Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-mm <linux-mm@kvack.org> Cc: linux-parisc@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/1453841853-11383-7-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Walleij
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a80bb4c9ec |
unicore: gpio: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative error codes and propagate to drivers, we need to go over all drivers and make sure their return values are clamped to [0,1]. We do this by using the ret = !!(val) design pattern. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Christoph Hellwig
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e1c7e32453 |
dma-mapping: always provide the dma_map_ops based implementation
Move the generic implementation to <linux/dma-mapping.h> now that all architectures support it and remove the HAVE_DMA_ATTR Kconfig symbol now that everyone supports them. [valentinrothberg@gmail.com: remove leftovers in Kconfig] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Helge Deller <deller@gmx.de> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Steven Miao <realmz6@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Will Deacon
|
da48d094ce |
Kconfig: remove HAVE_LATENCYTOP_SUPPORT
As illustrated by commit |
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Dan Williams
|
21266be9ed |
arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug
Let all the archs that implement devmem_is_allowed() opt-in to a common definition of CONFIG_STRICT_DEVM in lib/Kconfig.debug. Cc: Kees Cook <keescook@chromium.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [heiko: drop 'default y' for s390] Acked-by: Ingo Molnar <mingo@redhat.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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Linus Torvalds
|
c8fff3ed32 |
pwm: Changes for v4.4-rc1
This round contains a couple of new drivers for the Marvell Berlin family of SoCs, various SoCs from Renesas and Broadcom as well as the backlight PWM present on MediaTek SoCs. Further existing drivers are extended to support a wider range of hardware. The remaining patches are minor fixes and cleanups across the board. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJWQ12TAAoJEN0jrNd/PrOhVMwP/RK0Vr0GogxpHc4endw/L1Tf aDmC8LVxEBxaUOtjWB2sVB4ZSGfHfThOLTddiw5CTrka2fSAMTwhJueu6EZuLQ/V lJWb0bgneaH9VYqL26BPPw0sDHpFOBTg+QgXWsvipH3YQIWlOlSsQJZNrVpNkGWe Iw/+Ic45YwtGPLxwjgHLJyRZVuu6RV3se0voZhIuj33OLuYJ/1MCFYKTb3M8LZk3 6q+NwkhSnKgftu5rYRL+HvFHdu3p06W3hxTBp8KbPCDHpKVYY4S6z2pI7ol40BiT 7DFxr+PJ2GWURWVh9K6zmsamYAcKKeJhRjb2G8nBqgbKd9w+buNcAFjVkFAwGPK9 g6/QO6s/ZXwUOb518j3X/ABx/0dJmZRZXtlLqBikzlpjKLVrIGpgNz+s9nWzZq90 VJeun5S2FUKZYXqCquUWMZvSIDn0zyvwsW4p4bs4U/SuOGfqUnzeGW6+LOaY+RTj adzo3WxOmkWP2NRjWIwdzuLYekWgDFusbIsmWNfPWnu+1DNGzRZ7jTKUdSELQCM0 mzoZIRxxsU90jYA9XXfDWxS5X/h7YdkMhzxE/JI5aV7kUAHgV6U2F8eWCWV3WcRg pPRN8BJ+bO6DLdj5AwN60GNU79M8ciRLyhzqTAN3dsvLPhliAs/b7XyhADh+wLSk XRX5sTGww3pnvKZLIIPh =gwbt -----END PGP SIGNATURE----- Merge tag 'pwm/for-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "This round contains a couple of new drivers for the Marvell Berlin family of SoCs, various SoCs from Renesas and Broadcom as well as the backlight PWM present on MediaTek SoCs. Further existing drivers are extended to support a wider range of hardware. The remaining patches are minor fixes and cleanups across the board. Note that one of the patches included in this pull request is against arch/unicore32. I've included it here because I couldn't get a response from Guan Xuetao and I consider the change low-risk. Equivalent patches have been merged and tested in Samsung and PXA trees. The goal is to finally get rid of legacy code paths that have repeatedly been causing headaches" * tag 'pwm/for-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (24 commits) pwm: sunxi: Fix whitespace issue pwm: sysfs: Make use of the DEVICE_ATTR_[RW][WO] macro's pwm: sysfs: Remove unnecessary temporary variable unicore32: nb0916: Use PWM lookup table pwm: pwm-rcar: Revise the device tree binding document about compatible pwm: Return -ENODEV if no PWM lookup match is found pwm: sun4i: Add support for PWM controller on sun5i SoCs pwm: Set enable state properly on failed call to enable pwm: lpss: Add support for runtime PM pwm: lpss: Add more Intel Broxton IDs pwm: lpss: Support all four PWMs on Intel Broxton pwm: lpss: Add support for multiple PWMs pwm-pca9685: enable ACPI device found on Galileo Gen2 pwm: Add MediaTek display PWM driver support dt-bindings: pwm: Add MediaTek display PWM bindings pwm: tipwmss: Enable on TI DRA7x and AM437x pwm: atmel-hlcdc: add sama5d2 SoC support. pwm: Add Broadcom BCM7038 PWM controller support Documentation: dt: add Broadcom BCM7038 PWM controller binding pwm: Add support for R-Car PWM Timer ... |
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Thierry Reding
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b68edac921 |
unicore32: nb0916: Use PWM lookup table
Use a PWM lookup table to provide the PWM to the pwm-backlight device. The driver has a legacy code path that is required only because boards still use the legacy method of requesting PWMs by global ID. Replacing these usages allows that legacy fallback to be removed. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> |
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Linus Torvalds
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400c5bd5a5 |
power supply and reset changes for the v4.4 series
* new AXP20X USB Power driver * new Qualcomm SMBB driver * new TPS65217 Charger driver * BQ24257: add BQ24250/BQ24251 support * overhaul bq27x00 battery driver, rename to bq27xxx * misc. fixes and cleanups -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABCgAGBQJWOn8oAAoJENju1/PIO/qahrEP/RPHXvTxtYv8YvhaFbqcr07x 11gRB8RRthKK5woC3s70QKlMtcHijFeCwKuacut+7tfgK2oZDIm+Bd43Pl93aypU Yk4oTwop5OyrLsGIGiTIPPV9HTwr4q69Or2Q91mqUAUe2wGB5uCuJiJmCowUwfZs piv+ISLSOcH+i1bTx3hQ7h7axsdAlaSz2o1JprZaxm3rM67M8zF1ZHSK7wlpAeBa DiDrtUvEDCeLL8dmCA9xkFV4yFB9T+KNh0730N2RY+zlZS6WjSpzryqwsUWWyQ6h U9gFgcs+DjVaGHuMsIX2zm7xXfXHgUBtXdSQoCBhpSrZsdufMsT/8VQqVZ0yqpXL pQ2EXy63k6tXnXEyAKTA0tAOX/WZNfmmNblkea4JiyZULn7b/WH09waMZUBJqe84 Yn3SatVdGDN4nawsivzdiM3zR9/WTE9R3DmEeAE+g1RRsSraNwWlkzpDXcmnWmbc DoprnjLsDJfqL3/1ysF2V2I4B26Bws73qq6UUjJ4KEGWf8Y1fVawxrbcYmnrvg1K zW/saEgtl70FYqtee/0lIqTpjOZRX/O6QH5i8p7VC8cUzftX0Twc8MvfvpamDywX Cr1Y7pIMEhc6TFUP5lOzx9xJelA5PHJMpAT+02fh6YXMAzCcBUzL113rY5zBrVVl gce0iHDKAybmvww77z1r =0be4 -----END PGP SIGNATURE----- Merge tag 'for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: - new AXP20X USB Power driver - new Qualcomm SMBB driver - new TPS65217 Charger driver - BQ24257: add BQ24250/BQ24251 support - overhaul bq27x00 battery driver, rename to bq27xxx - misc fixes and cleanups * tag 'for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (54 commits) power: bq27xxx_battery: Remove unneeded dependency in Kconfig power: bq27xxx_battery: move irq handler to i2c section power: bq27xxx_battery: fix platform probe twl4030_charger: add missing iio dependency power_supply: charger-manager: add missing of_node_put Documentation: power: bq24257: Document exported sysfs entries power: bq24257: Add various device-specific sysfs properties power: bq24257: Allow input current limit sysfs access power: bq24257: Add input DPM voltage threshold setting support power: bq24257: Add over voltage protection setting support power: bq24257: Add SW-based approach for Power Good determination power: bq24257: Allow manual setting of input current limit power: bq24257: Add bit definition for temp sense enable power: bq24257: Add basic support for bq24250/bq24251 dt: power: bq24257-charger: Cover additional devices power: bq24257: Simplify bq24257_power_supply_init() power: bq24257: Use managed power supply register power: bq24257: Streamline input current limit setup power: bq24257: Remove IRQ config through stat-gpios power: bq27xxx_battery: fix signedness bug in bq27xxx_battery_read_health() ... |
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Linus Torvalds
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30c44659f4 |
Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull strscpy string copy function implementation from Chris Metcalf. Chris sent this during the merge window, but I waffled back and forth on the pull request, which is why it's going in only now. The new "strscpy()" function is definitely easier to use and more secure than either strncpy() or strlcpy(), both of which are horrible nasty interfaces that have serious and irredeemable problems. strncpy() has a useless return value, and doesn't NUL-terminate an overlong result. To make matters worse, it pads a short result with zeroes, which is a performance disaster if you have big buffers. strlcpy(), by contrast, is a mis-designed "fix" for strlcpy(), lacking the insane NUL padding, but having a differently broken return value which returns the original length of the source string. Which means that it will read characters past the count from the source buffer, and you have to trust the source to be properly terminated. It also makes error handling fragile, since the test for overflow is unnecessarily subtle. strscpy() avoids both these problems, guaranteeing the NUL termination (but not excessive padding) if the destination size wasn't zero, and making the overflow condition very obvious by returning -E2BIG. It also doesn't read past the size of the source, and can thus be used for untrusted source data too. So why did I waffle about this for so long? Every time we introduce a new-and-improved interface, people start doing these interminable series of trivial conversion patches. And every time that happens, somebody does some silly mistake, and the conversion patch to the improved interface actually makes things worse. Because the patch is mindnumbing and trivial, nobody has the attention span to look at it carefully, and it's usually done over large swatches of source code which means that not every conversion gets tested. So I'm pulling the strscpy() support because it *is* a better interface. But I will refuse to pull mindless conversion patches. Use this in places where it makes sense, but don't do trivial patches to fix things that aren't actually known to be broken. * 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: use global strscpy() rather than private copy string: provide strscpy() Make asm/word-at-a-time.h available on all architectures |
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Andrew F. Davis
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081bab217d |
power: bq27x00_battery: Renaming for consistency
Rename functions that are used by multiple devices. New devices have been added and the function names and driver name are no longer general enough for the functionality they provide. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: GUAN Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org> |
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Thomas Gleixner
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bd0b9ac405 |
genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> |
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Christoph Hellwig
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452e06af1f |
dma-mapping: consolidate dma_set_mask
Almost everyone implements dma_set_mask the same way, although some time that's hidden in ->set_dma_mask methods. This patch consolidates those into a common implementation that either calls ->set_dma_mask if present or otherwise uses the default implementation. Some architectures used to only call ->set_dma_mask after the initial checks, and those instance have been fixed to do the full work. h8300 implemented dma_set_mask bogusly as a no-ops and has been fixed. Unfortunately some architectures overload unrelated semantics like changing the dma_ops into it so we still need to allow for an architecture override for now. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
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ee196371d5 |
dma-mapping: consolidate dma_supported
Most architectures just call into ->dma_supported, but some also return 1 if the method is not present, or 0 if no dma ops are present (although that should never happeb). Consolidate this more broad version into common code. Also fix h8300 which inorrectly always returned 0, which would have been a problem if it's dma_set_mask implementation wasn't a similarly buggy noop. As a few architectures have much more elaborate implementations, we still allow for arch overrides. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
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efa21e432c |
dma-mapping: cosolidate dma_mapping_error
Currently there are three valid implementations of dma_mapping_error: (1) call ->mapping_error (2) check for a hardcoded error code (3) always return 0 This patch provides a common implementation that calls ->mapping_error if present, then checks for DMA_ERROR_CODE if defined or otherwise returns 0. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
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1e8937526e |
dma-mapping: consolidate dma_{alloc,free}_noncoherent
Most architectures do not support non-coherent allocations and either
define dma_{alloc,free}_noncoherent to their coherent versions or stub
them out.
Openrisc uses dma_{alloc,free}_attrs to implement them, and only Mips
implements them directly.
This patch moves the Openrisc version to common code, and handles the
DMA_ATTR_NON_CONSISTENT case in the mips dma_map_ops instance.
Note that actual non-coherent allocations require a dma_cache_sync
implementation, so if non-coherent allocations didn't work on
an architecture before this patch they still won't work after it.
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Christoph Hellwig
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6894258eda |
dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}
Since 2009 we have a nice asm-generic header implementing lots of DMA API functions for architectures using struct dma_map_ops, but unfortunately it's still missing a lot of APIs that all architectures still have to duplicate. This series consolidates the remaining functions, although we still need arch opt outs for two of them as a few architectures have very non-standard implementations. This patch (of 5): The coherent DMA allocator works the same over all architectures supporting dma_map operations. This patch consolidates them and converges the minor differences: - the debug_dma helpers are now called from all architectures, including those that were previously missing them - dma_alloc_from_coherent and dma_release_from_coherent are now always called from the generic alloc/free routines instead of the ops dma-mapping-common.h always includes dma-coherent.h to get the defintions for them, or the stubs if the architecture doesn't support this feature - checks for ->alloc / ->free presence are removed. There is only one magic instead of dma_map_ops without them (mic_dma_ops) and that one is x86 only anyway. Besides that only x86 needs special treatment to replace a default devices if none is passed and tweak the gfp_flags. An optional arch hook is provided for that. [linux@roeck-us.net: fix build] [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Yinghai Lu
|
2d3862d26e |
lib/decompressors: use real out buf size for gunzip with kernel
When loading x86 64bit kernel above 4GiB with patched grub2, got kernel
gunzip error.
| early console in decompress_kernel
| decompress_kernel:
| input: [0x807f2143b4-0x807ff61aee]
| output: [0x807cc00000-0x807f3ea29b] 0x027ea29c: output_len
| boot via startup_64
| KASLR using RDTSC...
| new output: [0x46fe000000-0x470138cfff] 0x0338d000: output_run_size
| decompress: [0x46fe000000-0x47007ea29b] <=== [0x807f2143b4-0x807ff61aee]
|
| Decompressing Linux... gz...
|
| uncompression error
|
| -- System halted
the new buffer is at 0x46fe000000ULL, decompressor_gzip is using
0xffffffb901ffffff as out_len. gunzip in lib/zlib_inflate/inflate.c cap
that len to 0x01ffffff and decompress fails later.
We could hit this problem with crashkernel booting that uses kexec loading
kernel above 4GiB.
We have decompress_* support:
1. inbuf[]/outbuf[] for kernel preboot.
2. inbuf[]/flush() for initramfs
3. fill()/flush() for initrd.
This bug only affect kernel preboot path that use outbuf[].
Add __decompress and take real out_buf_len for gunzip instead of guessing
wrong buf size.
Fixes:
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Linus Torvalds
|
12f03ee606 |
libnvdimm for 4.3:
1/ Introduce ZONE_DEVICE and devm_memremap_pages() as a generic
mechanism for adding device-driver-discovered memory regions to the
kernel's direct map. This facility is used by the pmem driver to
enable pfn_to_page() operations on the page frames returned by DAX
('direct_access' in 'struct block_device_operations'). For now, the
'memmap' allocation for these "device" pages comes from "System
RAM". Support for allocating the memmap from device memory will
arrive in a later kernel.
2/ Introduce memremap() to replace usages of ioremap_cache() and
ioremap_wt(). memremap() drops the __iomem annotation for these
mappings to memory that do not have i/o side effects. The
replacement of ioremap_cache() with memremap() is limited to the
pmem driver to ease merging the api change in v4.3. Completion of
the conversion is targeted for v4.4.
3/ Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem
driver, update the VFS DAX implementation and PMEM api to provide
persistence guarantees for kernel operations on a DAX mapping.
4/ Convert the ACPI NFIT 'BLK' driver to map the block apertures as
cacheable to improve performance.
5/ Miscellaneous updates and fixes to libnvdimm including support
for issuing "address range scrub" commands, clarifying the optimal
'sector size' of pmem devices, a clarification of the usage of the
ACPI '_STA' (status) property for DIMM devices, and other minor
fixes.
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Merge tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"This update has successfully completed a 0day-kbuild run and has
appeared in a linux-next release. The changes outside of the typical
drivers/nvdimm/ and drivers/acpi/nfit.[ch] paths are related to the
removal of IORESOURCE_CACHEABLE, the introduction of memremap(), and
the introduction of ZONE_DEVICE + devm_memremap_pages().
Summary:
- Introduce ZONE_DEVICE and devm_memremap_pages() as a generic
mechanism for adding device-driver-discovered memory regions to the
kernel's direct map.
This facility is used by the pmem driver to enable pfn_to_page()
operations on the page frames returned by DAX ('direct_access' in
'struct block_device_operations').
For now, the 'memmap' allocation for these "device" pages comes
from "System RAM". Support for allocating the memmap from device
memory will arrive in a later kernel.
- Introduce memremap() to replace usages of ioremap_cache() and
ioremap_wt(). memremap() drops the __iomem annotation for these
mappings to memory that do not have i/o side effects. The
replacement of ioremap_cache() with memremap() is limited to the
pmem driver to ease merging the api change in v4.3.
Completion of the conversion is targeted for v4.4.
- Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem
driver, update the VFS DAX implementation and PMEM api to provide
persistence guarantees for kernel operations on a DAX mapping.
- Convert the ACPI NFIT 'BLK' driver to map the block apertures as
cacheable to improve performance.
- Miscellaneous updates and fixes to libnvdimm including support for
issuing "address range scrub" commands, clarifying the optimal
'sector size' of pmem devices, a clarification of the usage of the
ACPI '_STA' (status) property for DIMM devices, and other minor
fixes"
* tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (34 commits)
libnvdimm, pmem: direct map legacy pmem by default
libnvdimm, pmem: 'struct page' for pmem
libnvdimm, pfn: 'struct page' provider infrastructure
x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB
add devm_memremap_pages
mm: ZONE_DEVICE for "device memory"
mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h
dax: drop size parameter to ->direct_access()
nd_blk: change aperture mapping from WC to WB
nvdimm: change to use generic kvfree()
pmem, dax: have direct_access use __pmem annotation
dax: update I/O path to do proper PMEM flushing
pmem: add copy_from_iter_pmem() and clear_pmem()
pmem, x86: clean up conditional pmem includes
pmem: remove layer when calling arch_has_wmb_pmem()
pmem, x86: move x86 PMEM API to new pmem.h header
libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option
pmem: switch to devm_ allocations
devres: add devm_memremap
libnvdimm, btt: write and validate parent_uuid
...
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Linus Torvalds
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17e6b00ac4 |
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"This updated pull request does not contain the last few GIC related
patches which were reported to cause a regression. There is a fix
available, but I let it breed for a couple of days first.
The irq departement provides:
- new infrastructure to support non PCI based MSI interrupts
- a couple of new irq chip drivers
- the usual pile of fixlets and updates to irq chip drivers
- preparatory changes for removal of the irq argument from interrupt
flow handlers
- preparatory changes to remove IRQF_VALID"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits)
irqchip/imx-gpcv2: IMX GPCv2 driver for wakeup sources
irqchip: Add bcm2836 interrupt controller for Raspberry Pi 2
irqchip: Add documentation for the bcm2836 interrupt controller
irqchip/bcm2835: Add support for being used as a second level controller
irqchip/bcm2835: Refactor handle_IRQ() calls out of MAKE_HWIRQ
PCI: xilinx: Fix typo in function name
irqchip/gic: Ensure gic_cpu_if_up/down() programs correct GIC instance
irqchip/gic: Only allow the primary GIC to set the CPU map
PCI/MSI: pci-xgene-msi: Consolidate chained IRQ handler install/remove
unicore32/irq: Prepare puv3_gpio_handler for irq argument removal
tile/pci_gx: Prepare trio_handle_level_irq for irq argument removal
m68k/irq: Prepare irq handlers for irq argument removal
C6X/megamode-pic: Prepare megamod_irq_cascade for irq argument removal
blackfin: Prepare irq handlers for irq argument removal
arc/irq: Prepare idu_cascade_isr for irq argument removal
sparc/irq: Use access helper irq_data_get_affinity_mask()
sparc/irq: Use helper irq_data_get_irq_handler_data()
parisc/irq: Use access helper irq_data_get_affinity_mask()
mn10300/irq: Use access helper irq_data_get_affinity_mask()
irqchip/i8259: Prepare i8259_irq_dispatch for irq argument removal
...
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Christoph Hellwig
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012dcef3f0 |
mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h
Three architectures already define these, and we'll need them genericly soon. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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Viresh Kumar
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3078c8df2c |
unicore/time: Migrate to new 'set-state' interface
Migrate unicore driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. We weren't doing anything for PERIODIC or RESUME modes and so their callbacks aren't implemented. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> |
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Thomas Gleixner
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f70229e2a3 |
unicore32/irq: Prepare puv3_gpio_handler for irq argument removal
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> |
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Laurent Dufour
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f2abeef9fd |
mm: clean up per architecture MM hook header files
Commit
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Chris Metcalf
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a6e2f029ae |
Make asm/word-at-a-time.h available on all architectures
Added the x86 implementation of word-at-a-time to the generic version, which previously only supported big-endian. Omitted the x86-specific load_unaligned_zeropad(), which in any case is also not present for the existing BE-only implementation of a word-at-a-time, and is only used under CONFIG_DCACHE_WORD_ACCESS. Added as a "generic-y" to the Kbuilds of all architectures that didn't previously have it. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com> |
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Masanari Iida
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9b597fd3c9 |
arch/unicore32/kernel/fpu-ucf64.c: remove unnecessary KERN_ERR
Signed-off-by: Masanari Iida <standby24x7@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
ad90fb9751 |
Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block
Pull asm/scatterlist.h removal from Jens Axboe: "We don't have any specific arch scatterlist anymore, since parisc finally switched over. Kill the include" * 'for-4.2/sg' of git://git.kernel.dk/linux-block: remove scatterlist.h generation from arch Kbuild files remove <asm/scatterlist.h> |
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Laurent Dufour
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2ae416b142 |
mm: new mm hook framework
CRIU is recreating the process memory layout by remapping the checkpointee memory area on top of the current process (criu). This includes remapping the vDSO to the place it has at checkpoint time. However some architectures like powerpc are keeping a reference to the vDSO base address to build the signal return stack frame by calling the vDSO sigreturn service. So once the vDSO has been moved, this reference is no more valid and the signal frame built later are not usable. This patch serie is introducing a new mm hook framework, and a new arch_remap hook which is called when mremap is done and the mm lock still hold. The next patch is adding the vDSO remap and unmap tracking to the powerpc architecture. This patch (of 3): This patch introduces a new set of header file to manage mm hooks: - per architecture empty header file (arch/x/include/asm/mm-arch-hooks.h) - a generic header (include/linux/mm-arch-hooks.h) The architecture which need to overwrite a hook as to redefine it in its header file, while architecture which doesn't need have nothing to do. The default hooks are defined in the generic header and are used in the case the architecture is not defining it. In a next step, mm hooks defined in include/asm-generic/mm_hooks.h should be moved here. Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
d8133356e9 |
PCI changes for the v4.2 merge window:
Enumeration
- Move pci_ari_enabled() to global header (Alex Williamson)
- Account for ARI in _PRT lookups (Alex Williamson)
- Remove unused pci_scan_bus_parented() (Yijing Wang)
Resource management
- Use host bridge _CRS info on systems with >32 bit addressing (Bjorn Helgaas)
- Use host bridge _CRS info on Foxconn K8M890-8237A (Bjorn Helgaas)
- Fix pci_address_to_pio() conversion of CPU address to I/O port (Zhichang Yuan)
- Add pci_bus_addr_t (Yinghai Lu)
PCI device hotplug
- Wait for pciehp command completion where necessary (Alex Williamson)
- Drop pointless ACPI-based "slot detection" check (Rafael J. Wysocki)
- Check ignore_hotplug for all downstream devices (Rafael J. Wysocki)
- Propagate the "ignore hotplug" setting to parent (Rafael J. Wysocki)
- Inline pciehp "handle event" functions into the ISR (Bjorn Helgaas)
- Clean up pciehp debug logging (Bjorn Helgaas)
Power management
- Remove redundant PCIe port type checking (Yijing Wang)
- Add dev->has_secondary_link to track downstream PCIe links (Yijing Wang)
- Use dev->has_secondary_link to find downstream links for ASPM (Yijing Wang)
- Drop __pci_disable_link_state() useless "force" parameter (Bjorn Helgaas)
- Simplify Clock Power Management setting (Bjorn Helgaas)
Virtualization
- Add ACS quirks for Intel 9-series PCH root ports (Alex Williamson)
- Add function 1 DMA alias quirk for Marvell 9120 (Sakari Ailus)
MSI
- Disable MSI at enumeration even if kernel doesn't support MSI (Michael S. Tsirkin)
- Remove unused pci_msi_off() (Bjorn Helgaas)
- Rename msi_set_enable(), msix_clear_and_set_ctrl() (Michael S. Tsirkin)
- Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl() (Michael S. Tsirkin)
- Drop pci_msi_off() calls during probe (Michael S. Tsirkin)
APM X-Gene host bridge driver
- Add APM X-Gene v1 PCIe MSI/MSIX termination driver (Duc Dang)
- Add APM X-Gene PCIe MSI DTS nodes (Duc Dang)
- Disable Configuration Request Retry Status for v1 silicon (Duc Dang)
- Allow config access to Root Port even when link is down (Duc Dang)
Broadcom iProc host bridge driver
- Allow override of device tree IRQ mapping function (Hauke Mehrtens)
- Add BCMA PCIe driver (Hauke Mehrtens)
- Directly add PCI resources (Hauke Mehrtens)
- Free resource list after registration (Hauke Mehrtens)
Freescale i.MX6 host bridge driver
- Add speed change timeout message (Troy Kisky)
- Rename imx6_pcie_start_link() to imx6_pcie_establish_link() (Bjorn Helgaas)
Freescale Layerscape host bridge driver
- Use dw_pcie_link_up() consistently (Bjorn Helgaas)
- Factor out ls_pcie_establish_link() (Bjorn Helgaas)
Marvell MVEBU host bridge driver
- Remove mvebu_pcie_scan_bus() (Yijing Wang)
NVIDIA Tegra host bridge driver
- Remove tegra_pcie_scan_bus() (Yijing Wang)
Synopsys DesignWare host bridge driver
- Consolidate outbound iATU programming functions (Jisheng Zhang)
- Use iATU0 for cfg and IO, iATU1 for MEM (Jisheng Zhang)
- Add support for x8 links (Zhou Wang)
- Wait for link to come up with consistent style (Bjorn Helgaas)
- Use pci_scan_root_bus() for simplicity (Yijing Wang)
TI DRA7xx host bridge driver
- Use dw_pcie_link_up() consistently (Bjorn Helgaas)
Miscellaneous
- Include <linux/pci.h>, not <asm/pci.h> (Bjorn Helgaas)
- Remove unnecessary #includes of <asm/pci.h> (Bjorn Helgaas)
- Remove unused pcibios_select_root() (again) (Bjorn Helgaas)
- Remove unused pci_dma_burst_advice() (Bjorn Helgaas)
- xen/pcifront: Don't use deprecated function pci_scan_bus_parented() (Arnd Bergmann)
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Merge tag 'pci-v4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"PCI changes for the v4.2 merge window:
Enumeration
- Move pci_ari_enabled() to global header (Alex Williamson)
- Account for ARI in _PRT lookups (Alex Williamson)
- Remove unused pci_scan_bus_parented() (Yijing Wang)
Resource management
- Use host bridge _CRS info on systems with >32 bit addressing (Bjorn Helgaas)
- Use host bridge _CRS info on Foxconn K8M890-8237A (Bjorn Helgaas)
- Fix pci_address_to_pio() conversion of CPU address to I/O port (Zhichang Yuan)
- Add pci_bus_addr_t (Yinghai Lu)
PCI device hotplug
- Wait for pciehp command completion where necessary (Alex Williamson)
- Drop pointless ACPI-based "slot detection" check (Rafael J. Wysocki)
- Check ignore_hotplug for all downstream devices (Rafael J. Wysocki)
- Propagate the "ignore hotplug" setting to parent (Rafael J. Wysocki)
- Inline pciehp "handle event" functions into the ISR (Bjorn Helgaas)
- Clean up pciehp debug logging (Bjorn Helgaas)
Power management
- Remove redundant PCIe port type checking (Yijing Wang)
- Add dev->has_secondary_link to track downstream PCIe links (Yijing Wang)
- Use dev->has_secondary_link to find downstream links for ASPM (Yijing Wang)
- Drop __pci_disable_link_state() useless "force" parameter (Bjorn Helgaas)
- Simplify Clock Power Management setting (Bjorn Helgaas)
Virtualization
- Add ACS quirks for Intel 9-series PCH root ports (Alex Williamson)
- Add function 1 DMA alias quirk for Marvell 9120 (Sakari Ailus)
MSI
- Disable MSI at enumeration even if kernel doesn't support MSI (Michael S. Tsirkin)
- Remove unused pci_msi_off() (Bjorn Helgaas)
- Rename msi_set_enable(), msix_clear_and_set_ctrl() (Michael S. Tsirkin)
- Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl() (Michael S. Tsirkin)
- Drop pci_msi_off() calls during probe (Michael S. Tsirkin)
APM X-Gene host bridge driver
- Add APM X-Gene v1 PCIe MSI/MSIX termination driver (Duc Dang)
- Add APM X-Gene PCIe MSI DTS nodes (Duc Dang)
- Disable Configuration Request Retry Status for v1 silicon (Duc Dang)
- Allow config access to Root Port even when link is down (Duc Dang)
Broadcom iProc host bridge driver
- Allow override of device tree IRQ mapping function (Hauke Mehrtens)
- Add BCMA PCIe driver (Hauke Mehrtens)
- Directly add PCI resources (Hauke Mehrtens)
- Free resource list after registration (Hauke Mehrtens)
Freescale i.MX6 host bridge driver
- Add speed change timeout message (Troy Kisky)
- Rename imx6_pcie_start_link() to imx6_pcie_establish_link() (Bjorn Helgaas)
Freescale Layerscape host bridge driver
- Use dw_pcie_link_up() consistently (Bjorn Helgaas)
- Factor out ls_pcie_establish_link() (Bjorn Helgaas)
Marvell MVEBU host bridge driver
- Remove mvebu_pcie_scan_bus() (Yijing Wang)
NVIDIA Tegra host bridge driver
- Remove tegra_pcie_scan_bus() (Yijing Wang)
Synopsys DesignWare host bridge driver
- Consolidate outbound iATU programming functions (Jisheng Zhang)
- Use iATU0 for cfg and IO, iATU1 for MEM (Jisheng Zhang)
- Add support for x8 links (Zhou Wang)
- Wait for link to come up with consistent style (Bjorn Helgaas)
- Use pci_scan_root_bus() for simplicity (Yijing Wang)
TI DRA7xx host bridge driver
- Use dw_pcie_link_up() consistently (Bjorn Helgaas)
Miscellaneous
- Include <linux/pci.h>, not <asm/pci.h> (Bjorn Helgaas)
- Remove unnecessary #includes of <asm/pci.h> (Bjorn Helgaas)
- Remove unused pcibios_select_root() (again) (Bjorn Helgaas)
- Remove unused pci_dma_burst_advice() (Bjorn Helgaas)
- xen/pcifront: Don't use deprecated function pci_scan_bus_parented() (Arnd Bergmann)"
* tag 'pci-v4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (58 commits)
PCI: pciehp: Inline the "handle event" functions into the ISR
PCI: pciehp: Rename queue_interrupt_event() to pciehp_queue_interrupt_event()
PCI: pciehp: Make queue_interrupt_event() void
PCI: xgene: Allow config access to Root Port even when link is down
PCI: xgene: Disable Configuration Request Retry Status for v1 silicon
PCI: pciehp: Clean up debug logging
x86/PCI: Use host bridge _CRS info on systems with >32 bit addressing
PCI: imx6: Add #define PCIE_RC_LCSR
PCI: imx6: Use "u32", not "uint32_t"
PCI: Remove unused pci_scan_bus_parented()
xen/pcifront: Don't use deprecated function pci_scan_bus_parented()
PCI: imx6: Add speed change timeout message
PCI/ASPM: Simplify Clock Power Management setting
PCI: designware: Wait for link to come up with consistent style
PCI: layerscape: Factor out ls_pcie_establish_link()
PCI: layerscape: Use dw_pcie_link_up() consistently
PCI: dra7xx: Use dw_pcie_link_up() consistently
x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A
PCI: pciehp: Wait for hotplug command completion where necessary
PCI: Remove unused pci_dma_burst_advice()
...
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Bjorn Helgaas
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01d72a9518 |
PCI: Remove unused pci_dma_burst_advice()
pci_dma_burst_advice() was added by
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Christoph Hellwig
|
c546d5db75 |
remove scatterlist.h generation from arch Kbuild files
Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jens Axboe <axboe@fb.com> |
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David Hildenbrand
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70ffdb9393 |
mm/fault, arch: Use pagefault_disable() to check for disabled pagefaults in the handler
Introduce faulthandler_disabled() and use it to check for irq context and disabled pagefaults (via pagefault_disable()) in the pagefault handlers. Please note that we keep the in_atomic() checks in place - to detect whether in irq context (in which case preemption is always properly disabled). In contrast, preempt_disable() should never be used to disable pagefaults. With !CONFIG_PREEMPT_COUNT, preempt_disable() doesn't modify the preempt counter, and therefore the result of in_atomic() differs. We validate that condition by using might_fault() checks when calling might_sleep(). Therefore, add a comment to faulthandler_disabled(), describing why this is needed. faulthandler_disabled() and pagefault_disable() are defined in linux/uaccess.h, so let's properly add that include to all relevant files. This patch is based on a patch from Thomas Gleixner. Reviewed-and-tested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: David.Laight@ACULAB.COM Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: airlied@linux.ie Cc: akpm@linux-foundation.org Cc: benh@kernel.crashing.org Cc: bigeasy@linutronix.de Cc: borntraeger@de.ibm.com Cc: daniel.vetter@intel.com Cc: heiko.carstens@de.ibm.com Cc: herbert@gondor.apana.org.au Cc: hocko@suse.cz Cc: hughd@google.com Cc: mst@redhat.com Cc: paulus@samba.org Cc: ralf@linux-mips.org Cc: schwidefsky@de.ibm.com Cc: yang.shi@windriver.com Link: http://lkml.kernel.org/r/1431359540-32227-7-git-send-email-dahi@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
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fa2e5c073a |
Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc
Pull exec domain removal from Richard Weinberger: "This series removes execution domain support from Linux. The idea behind exec domains was to support different ABIs. The feature was never complete nor stable. Let's rip it out and make the kernel signal handling code less complicated" * 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits) arm64: Removed unused variable sparc: Fix execution domain removal Remove rest of exec domains. arch: Remove exec_domain from remaining archs arc: Remove signal translation and exec_domain xtensa: Remove signal translation and exec_domain xtensa: Autogenerate offsets in struct thread_info x86: Remove signal translation and exec_domain unicore32: Remove signal translation and exec_domain um: Remove signal translation and exec_domain tile: Remove signal translation and exec_domain sparc: Remove signal translation and exec_domain sh: Remove signal translation and exec_domain s390: Remove signal translation and exec_domain mn10300: Remove signal translation and exec_domain microblaze: Remove signal translation and exec_domain m68k: Remove signal translation and exec_domain m32r: Remove signal translation and exec_domain m32r: Autogenerate offsets in struct thread_info frv: Remove signal translation and exec_domain ... |
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Richard Weinberger
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19b6d0b6df |
unicore32: Remove signal translation and exec_domain
As execution domain support is gone we can remove signal translation from the signal code and remove exec_domain from thread_info. Signed-off-by: Richard Weinberger <richard@nod.at> |
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Yijing Wang
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c90570d951 |
PCI: Assign resources before drivers claim devices (pci_scan_bus())
Previously, pci_scan_bus() created a root PCI bus, enumerated the devices on it, and called pci_bus_add_devices(), which made the devices available for drivers to claim them. Most callers assigned resources to devices after pci_scan_bus() returns, which may be after drivers have claimed the devices. This is incorrect; the PCI core should not change device resources while a driver is managing the device. Remove pci_bus_add_devices() from pci_scan_bus() and do it after any resource assignment in the callers. [bhelgaas: changelog, check for failure in mcf_pci_init()] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: "David S. Miller" <davem@davemloft.net> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Guan Xuetao <gxt@mprc.pku.edu.cn> CC: Richard Henderson <rth@twiddle.net> CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru> CC: Matt Turner <mattst88@gmail.com> |
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Andrey Ryabinin
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cb9e3c292d |
mm: vmalloc: pass additional vm_flags to __vmalloc_node_range()
For instrumenting global variables KASan will shadow memory backing memory for modules. So on module loading we will need to allocate memory for shadow and map it at address in shadow that corresponds to the address allocated in module_alloc(). __vmalloc_node_range() could be used for this purpose, except it puts a guard hole after allocated area. Guard hole in shadow memory should be a problem because at some future point we might need to have a shadow memory at address occupied by guard hole. So we could fail to allocate shadow for module_alloc(). Now we have VM_NO_GUARD flag disabling guard page, so we need to pass into __vmalloc_node_range(). Add new parameter 'vm_flags' to __vmalloc_node_range() function. Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrey Konovalov <adech.fo@gmail.com> Cc: Yuri Gribov <tetra2005@gmail.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Christoph Lameter <cl@linux.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andy Lutomirski
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f56141e3e2 |
all arches, signal: move restart_block to struct task_struct
If an attacker can cause a controlled kernel stack overflow, overwriting the restart block is a very juicy exploit target. This is because the restart_block is held in the same memory allocation as the kernel stack. Moving the restart block to struct task_struct prevents this exploit by making the restart_block harder to locate. Note that there are other fields in thread_info that are also easy targets, at least on some architectures. It's also a decent simplification, since the restart code is more or less identical on all architectures. [james.hogan@imgtec.com: metag: align thread_info::supervisor_stack] Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: David Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Steven Miao <realmz6@gmail.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Tested-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Kirill A. Shutemov
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b30fe6c7ce |
mm: fix false-positive warning on exit due mm_nr_pmds(mm)
The problem is that we check nr_ptes/nr_pmds in exit_mmap() which happens *before* pgd_free(). And if an arch does pte/pmd allocation in pgd_alloc() and frees them in pgd_free() we see offset in counters by the time of the checks. We tried to workaround this by offsetting expected counter value according to FIRST_USER_ADDRESS for both nr_pte and nr_pmd in exit_mmap(). But it doesn't work in some cases: 1. ARM with LPAE enabled also has non-zero USER_PGTABLES_CEILING, but upper addresses occupied with huge pmd entries, so the trick with offsetting expected counter value will get really ugly: we will have to apply it nr_pmds, but not nr_ptes. 2. Metag has non-zero FIRST_USER_ADDRESS, but doesn't do allocation pte/pmd page tables allocation in pgd_alloc(), just setup a pgd entry which is allocated at boot and shared accross all processes. The proposal is to move the check to check_mm() which happens *after* pgd_free() and do proper accounting during pgd_alloc() and pgd_free() which would bring counters to zero if nothing leaked. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reported-by: Tyler Baker <tyler.baker@linaro.org> Tested-by: Tyler Baker <tyler.baker@linaro.org> Tested-by: Nishanth Menon <nm@ti.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: James Hogan <james.hogan@imgtec.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Kirill A. Shutemov
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40171798fe |
unicore32: drop pte_file()-related helpers
We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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70e71ca0af |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) New offloading infrastructure and example 'rocker' driver for
offloading of switching and routing to hardware.
This work was done by a large group of dedicated individuals, not
limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend,
Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu
2) Start making the networking operate on IOV iterators instead of
modifying iov objects in-situ during transfers. Thanks to Al Viro
and Herbert Xu.
3) A set of new netlink interfaces for the TIPC stack, from Richard
Alpe.
4) Remove unnecessary looping during ipv6 routing lookups, from Martin
KaFai Lau.
5) Add PAUSE frame generation support to gianfar driver, from Matei
Pavaluca.
6) Allow for larger reordering levels in TCP, which are easily
achievable in the real world right now, from Eric Dumazet.
7) Add a variable of napi_schedule that doesn't need to disable cpu
interrupts, from Eric Dumazet.
8) Use a doubly linked list to optimize neigh_parms_release(), from
Nicolas Dichtel.
9) Various enhancements to the kernel BPF verifier, and allow eBPF
programs to actually be attached to sockets. From Alexei
Starovoitov.
10) Support TSO/LSO in sunvnet driver, from David L Stevens.
11) Allow controlling ECN usage via routing metrics, from Florian
Westphal.
12) Remote checksum offload, from Tom Herbert.
13) Add split-header receive, BQL, and xmit_more support to amd-xgbe
driver, from Thomas Lendacky.
14) Add MPLS support to openvswitch, from Simon Horman.
15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen
Klassert.
16) Do gro flushes on a per-device basis using a timer, from Eric
Dumazet. This tries to resolve the conflicting goals between the
desired handling of bulk vs. RPC-like traffic.
17) Allow userspace to ask for the CPU upon what a packet was
received/steered, via SO_INCOMING_CPU. From Eric Dumazet.
18) Limit GSO packets to half the current congestion window, from Eric
Dumazet.
19) Add a generic helper so that all drivers set their RSS keys in a
consistent way, from Eric Dumazet.
20) Add xmit_more support to enic driver, from Govindarajulu
Varadarajan.
21) Add VLAN packet scheduler action, from Jiri Pirko.
22) Support configurable RSS hash functions via ethtool, from Eyal
Perry.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits)
Fix race condition between vxlan_sock_add and vxlan_sock_release
net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header
net/mlx4: Add support for A0 steering
net/mlx4: Refactor QUERY_PORT
net/mlx4_core: Add explicit error message when rule doesn't meet configuration
net/mlx4: Add A0 hybrid steering
net/mlx4: Add mlx4_bitmap zone allocator
net/mlx4: Add a check if there are too many reserved QPs
net/mlx4: Change QP allocation scheme
net/mlx4_core: Use tasklet for user-space CQ completion events
net/mlx4_core: Mask out host side virtualization features for guests
net/mlx4_en: Set csum level for encapsulated packets
be2net: Export tunnel offloads only when a VxLAN tunnel is created
gianfar: Fix dma check map error when DMA_API_DEBUG is enabled
cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call
net: fec: only enable mdio interrupt before phy device link up
net: fec: clear all interrupt events to support i.MX6SX
net: fec: reset fep link status in suspend function
net: sock: fix access via invalid file descriptor
net: introduce helper macro for_each_cmsghdr
...
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Daniel Borkmann
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0cb6c969ed |
net, lib: kill arch_fast_hash library bits
As there are now no remaining users of arch_fast_hash(), lets kill it entirely. This basically reverts commit |
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Dave Hansen
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62e88b1c00 |
mm: Make arch_unmap()/bprm_mm_init() available to all architectures
The x86 MPX patch set calls arch_unmap() and arch_bprm_mm_init() from fs/exec.c, so we need at least a stub for them in all architectures. They are only called under an #ifdef for CONFIG_MMU=y, so we can at least restict this to architectures with MMU support. blackfin/c6x have no MMU support, so do not call arch_unmap(). They also do not include mm_hooks.h or mmu_context.h at all and do not need to be touched. s390, um and unicore32 do not use asm-generic/mm_hooks.h, so got their own arch_unmap() versions. (I also moved um's arch_dup_mmap() to be closer to the other mm_hooks.h functions). xtensa only includes mm_hooks when MMU=y, which should be fine since arch_unmap() is called only from MMU=y code. For the rest, we use the stub copies of these functions in asm-generic/mm_hook.h. I cross compiled defconfigs for cris (to check NOMMU) and s390 to make sure that this works. I also checked a 64-bit build of UML and all my normal x86 builds including PARAVIRT on and off. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Hansen <dave@sr71.net> Cc: linux-arch@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/20141118182350.8B4AA2C2@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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Geert Uytterhoeven
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7f8998c7ae |
nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
The different architectures used their own (and different) declarations:
extern __visible const void __nosave_begin, __nosave_end;
extern const void __nosave_begin, __nosave_end;
extern long __nosave_begin, __nosave_end;
Consolidate them using the first variant in <asm/sections.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Peter Zijlstra
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c5c38ef3d7 |
irq_work: Introduce arch_irq_work_has_interrupt()
The nohz full code needs irq work to trigger its own interrupt so that the subsystem can work even when the tick is stopped. Lets introduce arch_irq_work_has_interrupt() that archs can override to tell about their support for this ability. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> |
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Guenter Roeck
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ca98565a61 |
unicore32: Fix build error
unicore32 builds fail with arch/unicore32/kernel/signal.c: In function ‘setup_frame’: arch/unicore32/kernel/signal.c:257: error: ‘usig’ undeclared (first use in this function) arch/unicore32/kernel/signal.c:279: error: ‘usig’ undeclared (first use in this function) arch/unicore32/kernel/signal.c: In function ‘handle_signal’: arch/unicore32/kernel/signal.c:306: warning: unused variable ‘tsk’ arch/unicore32/kernel/signal.c: In function ‘do_signal’: arch/unicore32/kernel/signal.c:376: error: implicit declaration of function ‘get_signsl’ make[1]: *** [arch/unicore32/kernel/signal.o] Error 1 make: *** [arch/unicore32/kernel/signal.o] Error 2 Bisect points to commit |
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Linus Torvalds
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63b12bdb0d |
Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc
Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ... |
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Richard Weinberger
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649671c90e |
unicore32: Use get_signal() signal_setup_done()
Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger <richard@nod.at> |
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Linus Torvalds
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29b88e23a9 |
Driver core patches for 3.17-rc1
Here's the big driver-core pull request for 3.17-rc1. Largest thing in here is the dma-buf rework and fence code, that touched many different subsystems so it was agreed it should go through this tree to handle merge issues. There's also some firmware loading updates, as well as tests added, and a few other tiny changes, the changelog has the details. All have been in linux-next for a long time. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlPf1XcACgkQMUfUDdst+ylREACdHLXBa02yLrRzbrONJ+nARuFv JuQAoMN49PD8K9iMQpXqKBvZBsu+iCIY =w8OJ -----END PGP SIGNATURE----- Merge tag 'driver-core-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here's the big driver-core pull request for 3.17-rc1. Largest thing in here is the dma-buf rework and fence code, that touched many different subsystems so it was agreed it should go through this tree to handle merge issues. There's also some firmware loading updates, as well as tests added, and a few other tiny changes, the changelog has the details. All have been in linux-next for a long time" * tag 'driver-core-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits) ARM: imx: Remove references to platform_bus in mxc code firmware loader: Fix _request_firmware_load() return val for fw load abort platform: Remove most references to platform_bus device test: add firmware_class loader test doc: fix minor typos in firmware_class README staging: android: Cleanup style issues Documentation: devres: Sort managed interfaces Documentation: devres: Add devm_kmalloc() et al fs: debugfs: remove trailing whitespace kernfs: kernel-doc warning fix debugfs: Fix corrupted loop in debugfs_remove_recursive stable_kernel_rules: Add pointer to netdev-FAQ for network patches driver core: platform: add device binding path 'driver_override' driver core/platform: remove unused implicit padding in platform_object firmware loader: inform direct failure when udev loader is disabled firmware: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN firmware: read firmware size using i_size_read() firmware loader: allow disabling of udev as firmware loader reservation: add suppport for read-only access using rcu reservation: update api and add some helpers ... Conflicts: drivers/base/platform.c |
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Pawel Moll
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d2168146c2 |
platform: Remove most references to platform_bus device
A number of board files in arch/arm and arch/unicore32 explicitly reference platform_bus device as a parent for new platform devices. This is unnecessary, as platform device API guarantees that devices with NULL parent are going to by adopted by the mentioned "root" device. This patch removes or replaces with NULL such references. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Davidlohr Bueso
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3a6bfbc91d |
arch, locking: Ciao arch_mutex_cpu_relax()
The arch_mutex_cpu_relax() function, introduced by
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Stephen Boyd
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d670878e2c |
unicore32: Remove ARCH_HAS_CPUFREQ config option
This config exists entirely to hide the cpufreq menu from the kernel configuration unless a platform has selected it. Nothing is actually built if this config is 'Y' and it just leads to more patches that add a select under a platform Kconfig so that some other CPUfreq option can be chosen. Let's remove the option so that we can always enable CPUfreq drivers on unicore32 platforms. Cc: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn> |
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Chen Gang
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92543fd756 |
arch: unicore32: ksyms: export '__cpuc_coherent_kern_range' to avoid compiling failure
flush_icache_range() is '__cpuc_coherent_kern_range' under unicore32, and lkdtm.ko needs it. At present, '__cpuc_coherent_kern_range' is still used by unicore32, so export it to avoid compiling failure. The related error (with allmodconfig under unicore32): ERROR: "__cpuc_coherent_kern_range" [drivers/misc/lkdtm.ko] undefined! Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn> |
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Chen Gang
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3420d49dd3 |
arch: unicore32: ksyms: export 'pm_power_off' to avoid compiling failure.
Two driver modules need 'pm_power_off', so export it.
The related error (with allmodconfig under unicore32):
MODPOST 4039 modules
ERROR: "pm_power_off" [drivers/mfd/retu-mfd.ko] undefined!
ERROR: "pm_power_off" [drivers/char/ipmi/ipmi_poweroff.ko] undefined!
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
40ad2a6741 |
arch: unicore32: ksyms: export additional find_first_*() to avoid compiling failure
Some modules need find_first_bit() and find_first_zero_bit(), so export
them.
The related error (with allmodconfig under unicore32):
MODPOST 4039 modules
ERROR: "find_first_bit" [sound/soc/codecs/snd-soc-uda1380.ko] undefined!
ERROR: "find_first_zero_bit" [net/sctp/sctp.ko] undefined!
...
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
8a016596a5 |
arch:unicore32:mm: add devmem_is_allowed() to support STRICT_DEVMEM
unicore32 supports STRICT_DEVMEM, so it needs devmem_is_allowed(), like
some of other architectures have done (e.g. arm, powerpc, x86 ...).
The related error with allmodconfig:
CC drivers/char/mem.o
drivers/char/mem.c: In function ârange_is_allowedâ:
drivers/char/mem.c:69: error: implicit declaration of function âdevmem_is_allowedâ
make[2]: *** [drivers/char/mem.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
aaad618382 |
unicore32: include: asm: add missing ')' for PAGE_* macros in pgtable.h
Missing related ')', the related compiling error:
CC [M] drivers/gpu/drm/udl/udl_fb.o
drivers/gpu/drm/udl/udl_fb.c: In function ‘udl_fb_mmap’:
drivers/gpu/drm/udl/udl_fb.c:273: error: expected ‘)’ before ‘return’
drivers/gpu/drm/udl/udl_fb.c:281: error: expected expression before ‘}’ token
make[4]: *** [drivers/gpu/drm/udl/udl_fb.o] Error 1
make[3]: *** [drivers/gpu/drm/udl] Error 2
make[2]: *** [drivers/gpu/drm] Error 2
make[1]: *** [drivers/gpu] Error 2
make: *** [drivers] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
f80561e4d1 |
arch/unicore32/kernel/setup.c: add generic 'screen_info' to avoid compiling failure
Add generic 'screen_info' just like another architectures have done
(e.g. tile, sh, score, ia64, hexagon, and cris).
The related error (with allmodconfig under unicore32):
LD init/built-in.o
drivers/built-in.o: In function `vgacon_save_screen':
powercap_sys.c:(.text+0x21788): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_resize':
powercap_sys.c:(.text+0x21b54): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_switch':
powercap_sys.c:(.text+0x21cb4): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_init':
powercap_sys.c:(.text+0x2296c): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_startup':
powercap_sys.c:(.text+0x22e80): undefined reference to `screen_info'
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
8065042279 |
arch: unicore32: kernel: ksyms: remove 'bswapsi2' and 'muldi3' to avoid compiling failure
After check the code, 'bswapsi2' and 'muldi3' are useless for
unicore32, so can remove them to avoid compiling failure.
The related error (with allmodconfig under unicore32):
LD init/built-in.o
arch/unicore32/kernel/built-in.o:(___ksymtab+__muldi3+0x0): undefined reference to `__muldi3'
arch/unicore32/kernel/built-in.o:(___ksymtab+__bswapsi2+0x0): undefined reference to `__bswapsi2'
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
5a5ffc991e |
arch/unicore32/kernel/ksyms.c: remove 2 export symbols to avoid compiling failure
'csum_partial' and 'csum_partial_copy_from_user' have already been
exported in "lib/", so need not export them again, or it will cause
compiling error.
The related error (with allmodconfig under unicore32):
LD vmlinux.o
lib/built-in.o:(___ksymtab+csum_partial+0x0): multiple definition of `__ksymtab_csum_partial'
arch/unicore32/kernel/built-in.o:(___ksymtab+csum_partial+0x0): first defined here
lib/built-in.o:(___ksymtab+csum_partial_copy_from_user+0x0): multiple definition of `__ksymtab_csum_partial_copy_from_user'
arch/unicore32/kernel/built-in.o:(___ksymtab+csum_partial_copy_from_user+0x0): first defined here
make: *** [vmlinux] Error 1
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
312c6df403 |
arch/unicore32/include/asm/io.h: add readl_relaxed() generic definition
Need generic definition for readl_relaxed(), like other architectures
have done. Or can not pass compiling with allmodconfig, the related
error:
CC [M] drivers/message/fusion/mptbase.o
drivers/message/fusion/mptbase.c: In function 'mpt_send_handshake_request':
drivers/message/fusion/mptbase.c:1224: error: implicit declaration of function 'readl_relaxed'
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
1febf61514 |
arch/unicore32/include/asm/ptrace.h: add generic definition for profile_pc()
Add generic definition just like another architectures have done, or
can not pass compiling with allmodconfig, the related error:
CC kernel/profile.o
kernel/profile.c: In function 'profile_tick':
kernel/profile.c:419: error: implicit declaration of function 'profile_pc'
make[1]: *** [kernel/profile.o] Error 1
make: *** [kernel] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
1ff38c56cb |
arch/unicore32/mm/alignment.c: include "asm/pgtable.h" to avoid compiling error
Need include "asm/pgtable.h" to include "asm-generic/pgtable-nopmd.h",
so can let 'pmd_t' defined. The related error with allmodconfig:
CC arch/unicore32/mm/alignment.o
In file included from arch/unicore32/mm/alignment.c:24:
arch/unicore32/include/asm/tlbflush.h:135: error: expected .). before .*. token
arch/unicore32/include/asm/tlbflush.h:154: error: expected .). before .*. token
In file included from arch/unicore32/mm/alignment.c:27:
arch/unicore32/mm/mm.h:15: error: expected .=., .,., .;., .sm. or ._attribute__. before .*. token
arch/unicore32/mm/mm.h:20: error: expected .=., .,., .;., .sm. or ._attribute__. before .*. token
arch/unicore32/mm/mm.h:25: error: expected .=., .,., .;., .sm. or ._attribute__. before .*. token
make[1]: *** [arch/unicore32/mm/alignment.o] Error 1
make: *** [arch/unicore32/mm] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
db7ef289a2 |
arch/unicore32/kernel/clock.c: add readl() and writel() for 'PM_' macros
Add readl() and writel() for 'PM_' macros, just like another areas have
done within unicored32, or will cause compiling issue.
The related error (allmodconfig for unicored32):
CC arch/unicore32/kernel/clock.o
arch/unicore32/kernel/clock.c: In function 'clk_set_rate':
arch/unicore32/kernel/clock.c:182: warning: initialization makes integer from pointer without a cast
arch/unicore32/kernel/clock.c:204: error: lvalue required as left operand of assignment
arch/unicore32/kernel/clock.c:206: error: lvalue required as left operand of assignment
arch/unicore32/kernel/clock.c:207: error: invalid operands to binary & (have 'void *' and 'long unsigned int')
make[1]: *** [arch/unicore32/kernel/clock.o] Error 1
make: *** [arch/unicore32/kernel] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
df8e4c7d8d |
arch/unicore32/kernel/module.c: use __vmalloc_node_range() instead of __vmalloc_area()
__vmalloc_area() has already been removed from upstream kernel, need
use __vmalloc_node_range() instead of.
The related commit: "d0a2126 mm: unify module_alloc code for vmalloc".
The related error (allmodconfig for unicore32):
CC arch/unicore32/kernel/module.o
arch/unicore32/kernel/module.c: In function 'module_alloc' :
arch/unicore32/kernel/module.c:34: error: implicit declaration of function '__vmalloc_area'
arch/unicore32/kernel/module.c:34: warning: return makes pointer from integer without a cast
make[1]: *** [arch/unicore32/kernel/module.o] Error 1
make: *** [arch/unicore32/kernel] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Chen Gang
|
4877b60cdf |
arch/unicore32/kernel/ksyms.c: remove several undefined exported symbols
For 'csum_partial_copy_nocheck()', it has default definition in
'asm-generic'.
For '__raw_reads?()' and '__raw_writes?()' are used by the drivers
which no relationship with allmodconfig for unicode32, the related
modules are:
drivers/mmc/host/omap.c
drivers/mtd/nand/atmel_nand.c
drivers/mtd/nand/pxa3xx_nand.c
drivers/usb/gadget/at91_udc.c
Others are only within some architectures (not kernel wide).
The related error with allmodconfig for unicode32:
CC arch/unicore32/kernel/ksyms.o
arch/unicore32/kernel/ksyms.c:29: error: ._backtrace. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:29: error: type defaults to .nt. in declaration of ._backtrace.
arch/unicore32/kernel/ksyms.c:38: error: .sum_partial_copy_nocheck. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:38: error: type defaults to .nt. in declaration of .sum_partial_copy_nocheck.
arch/unicore32/kernel/ksyms.c:39: error: ._csum_ipv6_magic. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:39: error: type defaults to .nt. in declaration of ._csum_ipv6_magic.
arch/unicore32/kernel/ksyms.c:43: error: ._raw_readsb. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:43: error: type defaults to .nt. in declaration of ._raw_readsb.
arch/unicore32/kernel/ksyms.c:46: error: ._raw_readsw. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:46: error: type defaults to .nt. in declaration of ._raw_readsw.
arch/unicore32/kernel/ksyms.c:49: error: ._raw_readsl. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:49: error: type defaults to .nt. in declaration of ._raw_readsl.
arch/unicore32/kernel/ksyms.c:52: error: ._raw_writesb. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:52: error: type defaults to .nt. in declaration of ._raw_writesb.
arch/unicore32/kernel/ksyms.c:55: error: ._raw_writesw. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:55: error: type defaults to .nt. in declaration of ._raw_writesw.
arch/unicore32/kernel/ksyms.c:58: error: ._raw_writesl. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:58: error: type defaults to .nt. in declaration of ._raw_writesl.
arch/unicore32/kernel/ksyms.c:79: error: ._get_user_1. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:79: error: type defaults to .nt. in declaration of ._get_user_1.
arch/unicore32/kernel/ksyms.c:80: error: ._get_user_2. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:80: error: type defaults to .nt. in declaration of ._get_user_2.
arch/unicore32/kernel/ksyms.c:81: error: ._get_user_4. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:81: error: type defaults to .nt. in declaration of ._get_user_4.
arch/unicore32/kernel/ksyms.c:83: error: ._put_user_1. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:83: error: type defaults to .nt. in declaration of ._put_user_1.
arch/unicore32/kernel/ksyms.c:84: error: ._put_user_2. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:84: error: type defaults to .nt. in declaration of ._put_user_2.
arch/unicore32/kernel/ksyms.c:85: error: ._put_user_4. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:85: error: type defaults to .nt. in declaration of ._put_user_4.
arch/unicore32/kernel/ksyms.c:86: error: ._put_user_8. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:86: error: type defaults to .nt. in declaration of ._put_user_8.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
|
|
|
Andrew Morton
|
2accff4ef5 |
arch/unicore32/mm/ioremap.c: return NULL on invalid pfn
__uc32_ioremap_pfn_caller() should return NULL when the pfn is found to be invalid. From a recommendation by Guan Xuetao. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Fabian Frederick <fabf@skynet.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Fabian Frederick
|
acc8a1c005 |
arch/unicore32/mm/ioremap.c: convert printk/warn_on to warn()
Coalesce formats. [akpm@linux-foundation.org: undo crazy long line] Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Linus Torvalds
|
e5c4ecdc55 |
USB driver patches for 3.16-rc1
Here is the big USB driver pull request for 3.16-rc1. Nothing huge here, but lots of little things in the USB core, and in lots of drivers. Hopefully the USB power management will be work better now that it has been reworked to do per-port power control dynamically. There's also a raft of gadget driver updates and fixes, CONFIG_USB_DEBUG is finally gone now that everything has been converted over to the dynamic debug inteface, the last hold-out drivers were cleaned up and the config option removed. There were also other minor things all through the drivers/usb/ tree, the shortlog shows this pretty well. All have been in linux-next, including the very last patch, which came from linux-next to fix a build issue on some platforms. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEABECAAYFAlONYEMACgkQMUfUDdst+ynxvgCggMQBhN5icth8Y5hFglNNaISN c4AAoMHR2kb62U1plylLbPnboQTjfcl0 =fG6y -----END PGP SIGNATURE----- Merge tag 'usb-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb into next Pull USB driver updates from Greg KH: "Here is the big USB driver pull request for 3.16-rc1. Nothing huge here, but lots of little things in the USB core, and in lots of drivers. Hopefully the USB power management will be work better now that it has been reworked to do per-port power control dynamically. There's also a raft of gadget driver updates and fixes, CONFIG_USB_DEBUG is finally gone now that everything has been converted over to the dynamic debug inteface, the last hold-out drivers were cleaned up and the config option removed. There were also other minor things all through the drivers/usb/ tree, the shortlog shows this pretty well. All have been in linux-next, including the very last patch, which came from linux-next to fix a build issue on some platforms" * tag 'usb-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (314 commits) usb: hub_handle_remote_wakeup() only exists for CONFIG_PM=y USB: orinoco_usb: remove CONFIG_USB_DEBUG support USB: media: lirc: igorplugusb: remove CONFIG_USB_DEBUG support USB: media: streamzap: remove CONFIG_USB_DEBUG USB: media: redrat3: remove CONFIG_USB_DEBUG usage USB: media: redrat3: remove unneeded tracing macro usb: qcserial: add additional Sierra Wireless QMI devices usb: host: max3421-hcd: Use module_spi_driver usb: host: max3421-hcd: Allow platform-data to specify Vbus polarity usb: host: max3421-hcd: fix "spi_rd8" uses dynamic stack allocation warning usb: host: max3421-hcd: Fix missing unlock in max3421_urb_enqueue() usb: qcserial: add Netgear AirCard 341U Documentation: dt-bindings: update xhci-platform DT binding for R-Car H2 and M2 usb: host: xhci-plat: add xhci_plat_start() usb: host: max3421-hcd: Fix potential NULL urb dereference Revert "usb: gadget: net2280: Add support for PLX USB338X" USB: usbip: remove CONFIG_USB_DEBUG reference USB: remove CONFIG_USB_DEBUG from defconfig files usb: resume child device when port is powered on usb: hub_handle_remote_wakeup() depends on CONFIG_PM_RUNTIME=y ... |
|
|
Naoki MATSUMOTO
|
3a0d89d3f8 |
USB: delete CONFIG_USB_DEVICEFS from defconfig
It no longer occurs in Kconfig.
USB: remove CONFIG_USB_DEVICEFS(
|
|
|
Hanjun Guo
|
a43ae58c84 |
PCI: Turn pcibios_penalize_isa_irq() into a weak function
pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA is not used by some architectures. Make pcibios_penalize_isa_irq() a __weak function to simplify the code. This removes the need for new platforms to add stub implementations of pcibios_penalize_isa_irq(). [bhelgaas: changelog, comments] Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Arnd Bergmann <arnd@arndb.de> |
|
|
Uwe Kleine-König
|
ce816fa88c |
Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP
If the renamed symbol is defined lib/iomap.c implements ioport_map and ioport_unmap and currently (nearly) all platforms define the port accessor functions outb/inb and friend unconditionally. So HAS_IOPORT_MAP is the better name for this. Consequently NO_IOPORT is renamed to NO_IOPORT_MAP. The motivation for this change is to reintroduce a symbol HAS_IOPORT that signals if outb/int et al are available. I will address that at least one merge window later though to keep surprises to a minimum and catch new introductions of (HAS|NO)_IOPORT. The changes in this commit were done using: $ git grep -l -E '(NO|HAS)_IOPORT' | xargs perl -p -i -e 's/\b((?:CONFIG_)?(?:NO|HAS)_IOPORT)\b/$1_MAP/' Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
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Davidlohr Bueso
|
615d6e8756 |
mm: per-thread vma caching
This patch is a continuation of efforts trying to optimize find_vma(), avoiding potentially expensive rbtree walks to locate a vma upon faults. The original approach (https://lkml.org/lkml/2013/11/1/410), where the largest vma was also cached, ended up being too specific and random, thus further comparison with other approaches were needed. There are two things to consider when dealing with this, the cache hit rate and the latency of find_vma(). Improving the hit-rate does not necessarily translate in finding the vma any faster, as the overhead of any fancy caching schemes can be too high to consider. We currently cache the last used vma for the whole address space, which provides a nice optimization, reducing the total cycles in find_vma() by up to 250%, for workloads with good locality. On the other hand, this simple scheme is pretty much useless for workloads with poor locality. Analyzing ebizzy runs shows that, no matter how many threads are running, the mmap_cache hit rate is less than 2%, and in many situations below 1%. The proposed approach is to replace this scheme with a small per-thread cache, maximizing hit rates at a very low maintenance cost. Invalidations are performed by simply bumping up a 32-bit sequence number. The only expensive operation is in the rare case of a seq number overflow, where all caches that share the same address space are flushed. Upon a miss, the proposed replacement policy is based on the page number that contains the virtual address in question. Concretely, the following results are seen on an 80 core, 8 socket x86-64 box: 1) System bootup: Most programs are single threaded, so the per-thread scheme does improve ~50% hit rate by just adding a few more slots to the cache. +----------------+----------+------------------+ | caching scheme | hit-rate | cycles (billion) | +----------------+----------+------------------+ | baseline | 50.61% | 19.90 | | patched | 73.45% | 13.58 | +----------------+----------+------------------+ 2) Kernel build: This one is already pretty good with the current approach as we're dealing with good locality. +----------------+----------+------------------+ | caching scheme | hit-rate | cycles (billion) | +----------------+----------+------------------+ | baseline | 75.28% | 11.03 | | patched | 88.09% | 9.31 | +----------------+----------+------------------+ 3) Oracle 11g Data Mining (4k pages): Similar to the kernel build workload. +----------------+----------+------------------+ | caching scheme | hit-rate | cycles (billion) | +----------------+----------+------------------+ | baseline | 70.66% | 17.14 | | patched | 91.15% | 12.57 | +----------------+----------+------------------+ 4) Ebizzy: There's a fair amount of variation from run to run, but this approach always shows nearly perfect hit rates, while baseline is just about non-existent. The amounts of cycles can fluctuate between anywhere from ~60 to ~116 for the baseline scheme, but this approach reduces it considerably. For instance, with 80 threads: +----------------+----------+------------------+ | caching scheme | hit-rate | cycles (billion) | +----------------+----------+------------------+ | baseline | 1.06% | 91.54 | | patched | 99.97% | 14.18 | +----------------+----------+------------------+ [akpm@linux-foundation.org: fix nommu build, per Davidlohr] [akpm@linux-foundation.org: document vmacache_valid() logic] [akpm@linux-foundation.org: attempt to untangle header files] [akpm@linux-foundation.org: add vmacache_find() BUG_ON] [hughd@google.com: add vmacache_valid_mm() (from Oleg)] [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: adjust and enhance comments] Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Reviewed-by: Rik van Riel <riel@redhat.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Michel Lespinasse <walken@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Tested-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|
Tim Chen
|
ddf1d169c0 |
locking/mcs: Allow architecture specific asm files to be used for contended case
This patch allows each architecture to add its specific assembly optimized arch_mcs_spin_lock_contended and arch_mcs_spinlock_uncontended for MCS lock and unlock functions. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Cc: Scott J Norton <scott.norton@hp.com> Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Cc: AswinChandramouleeswaran <aswin@hp.com> Cc: George Spelvin <linux@horizon.com> Cc: Rik vanRiel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: MichelLespinasse <walken@google.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Alex Shi <alex.shi@linaro.org> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Figo.zhang" <figo1802@gmail.com> Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Waiman Long <waiman.long@hp.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Will Deacon <will.deacon@arm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1390347382.3138.67.camel@schen9-DESK Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Tim Chen
|
b119fa61d4 |
locking/mcs: Order the header files in Kbuild of each architecture in alphabetical order
We perform a clean up of the Kbuid files in each architecture.
We order the files in each Kbuild in alphabetical order
by running the below script.
for i in arch/*/include/asm/Kbuild
do
cat $i | gawk '/^generic-y/ {
i = 3;
do {
for (; i <= NF; i++) {
if ($i == "\\") {
getline;
i = 1;
continue;
}
if ($i != "")
hdr[$i] = $i;
}
break;
} while (1);
next;
}
// {
print $0;
}
END {
n = asort(hdr);
for (i = 1; i <= n; i++)
print "generic-y += " hdr[i];
}' > ${i}.sorted;
mv ${i}.sorted $i;
done
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com>
Cc: AswinChandramouleeswaran <aswin@hp.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: "Figo.zhang" <figo1802@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: George Spelvin <linux@horizon.com>
Cc: MichelLespinasse <walken@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
[ Fixed build bug. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
|
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Heinrich Schuchardt
|
40e05dd026 |
arch/unicore32/kernel/early_printk.c:setup_early_printk: missing initialization
It is based on uninitialized value keep_early. This leads to unpredictable result. [akpm@linux-foundation.org: simplify code] Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Linus Torvalds
|
4ba9920e5e |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) BPF debugger and asm tool by Daniel Borkmann.
2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann.
3) Correct reciprocal_divide and update users, from Hannes Frederic
Sowa and Daniel Borkmann.
4) Currently we only have a "set" operation for the hw timestamp socket
ioctl, add a "get" operation to match. From Ben Hutchings.
5) Add better trace events for debugging driver datapath problems, also
from Ben Hutchings.
6) Implement auto corking in TCP, from Eric Dumazet. Basically, if we
have a small send and a previous packet is already in the qdisc or
device queue, defer until TX completion or we get more data.
7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko.
8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel
Borkmann.
9) Share IP header compression code between Bluetooth and IEEE802154
layers, from Jukka Rissanen.
10) Fix ipv6 router reachability probing, from Jiri Benc.
11) Allow packets to be captured on macvtap devices, from Vlad Yasevich.
12) Support tunneling in GRO layer, from Jerry Chu.
13) Allow bonding to be configured fully using netlink, from Scott
Feldman.
14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can
already get the TCI. From Atzm Watanabe.
15) New "Heavy Hitter" qdisc, from Terry Lam.
16) Significantly improve the IPSEC support in pktgen, from Fan Du.
17) Allow ipv4 tunnels to cache routes, just like sockets. From Tom
Herbert.
18) Add Proportional Integral Enhanced packet scheduler, from Vijay
Subramanian.
19) Allow openvswitch to mmap'd netlink, from Thomas Graf.
20) Key TCP metrics blobs also by source address, not just destination
address. From Christoph Paasch.
21) Support 10G in generic phylib. From Andy Fleming.
22) Try to short-circuit GRO flow compares using device provided RX
hash, if provided. From Tom Herbert.
The wireless and netfilter folks have been busy little bees too.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits)
net/cxgb4: Fix referencing freed adapter
ipv6: reallocate addrconf router for ipv6 address when lo device up
fib_frontend: fix possible NULL pointer dereference
rtnetlink: remove IFLA_BOND_SLAVE definition
rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info
qlcnic: update version to 5.3.55
qlcnic: Enhance logic to calculate msix vectors.
qlcnic: Refactor interrupt coalescing code for all adapters.
qlcnic: Update poll controller code path
qlcnic: Interrupt code cleanup
qlcnic: Enhance Tx timeout debugging.
qlcnic: Use bool for rx_mac_learn.
bonding: fix u64 division
rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC
sfc: Use the correct maximum TX DMA ring size for SFC9100
Add Shradha Shah as the sfc driver maintainer.
net/vxlan: Share RX skb de-marking and checksum checks with ovs
tulip: cleanup by using ARRAY_SIZE()
ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
net/cxgb4: Don't retrieve stats during recovery
...
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Linus Torvalds
|
1b59bab55e |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov: "Just a swath of driver fixes and cleanups, no new drivers this time (although ALPS now supports one of the newer protocols, more to come)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits) Input: wacom - add support for DTU-1031 Input: wacom - fix wacom->shared guards for dual input devices Input: edt_ft5x06 - use devm_* functions where appropriate Input: hyperv-keyboard - pass through 0xE1 prefix Input: logips2pp - fix spelling s/reciver/receiver/ Input: delete non-required instances of include <linux/init.h> Input: twl4030-keypad - convert to using managed resources Input: twl6040-vibra - remove unneeded check for CONFIG_OF Input: twl4030-keypad - add device tree support Input: twl6040-vibra - add missing of_node_put Input: twl4030-vibra - add missing of_node_put Input: i8042 - cleanup SERIO_I8042 dependencies Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on x86 Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32 Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on sparc Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO for SH_CAYMAN Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on mips Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64 Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge ... |
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Mel Gorman
|
aec6a8889a |
mm, show_mem: remove SHOW_MEM_FILTER_PAGE_COUNT
Commit |
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Peter Zijlstra
|
93ea02bb84 |
arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h
We're going to be adding a few new barrier primitives, and in order to avoid endless duplication make more agressive use of asm-generic/barrier.h. Change the asm-generic/barrier.h such that it allows partial barrier definitions and fills out the rest with defaults. There are a few architectures (m32r, m68k) that could probably do away with their barrier.h file entirely but are kept for now due to their unconventional nop() implementation. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Michael Neuling <mikey@neuling.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Victor Kaplansky <VICTORK@il.ibm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20131213150640.846368594@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
|
|
Mark Salter
|
d444b03bfe |
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32
Architectures which might use an i8042 for serial IO to keyboard, mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO. Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> |
|
|
David S. Miller
|
e3fec2f74f |
lib: Add missing arch generic-y entries for asm-generic/hash.h
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Linus Torvalds
|
4007162647 |
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq cleanups from Ingo Molnar: "This is a multi-arch cleanup series from Thomas Gleixner, which we kept to near the end of the merge window, to not interfere with architecture updates. This series (motivated by the -rt kernel) unifies more aspects of IRQ handling and generalizes PREEMPT_ACTIVE" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: preempt: Make PREEMPT_ACTIVE generic sparc: Use preempt_schedule_irq ia64: Use preempt_schedule_irq m32r: Use preempt_schedule_irq hardirq: Make hardirq bits generic m68k: Simplify low level interrupt handling code genirq: Prevent spurious detection for unconditionally polled interrupts |
|
|
Linus Torvalds
|
0bde7294e2 |
pwm: Changes for v3.13-rc1
Mostly bug fixes and clean up. There is a new driver, which is actually moving a custom PWM driver from drivers/misc. The majority of the patches are enhancements to the device tree support in the pwm-backlight driver. Backlights can now additionally be powered using a regulator and enabled using a GPIO in addition to just the PWM input. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJSh1s7AAoJEN0jrNd/PrOhdS4P/1A/Tx05pP0ACsizhkB4Ro02 XgjIusWw/jp+3LWXrlaReVNb5H6GlahDT5+2/ApAw06o7INGvpSzyI1fuFQ2DU6K L7MgWDSifeL7jiwfUq5f3Qv4Vccjgii0z4BBQI5ZpPluIzKpo2uhz7gIjBR3wPu9 i34bc902SL/DrlvbMUsRHlYT9Ok3TpsPynk0pmw8xrUZDqRAX7DZH0EmvMkVsDo2 T1vt9gQVTFVgIwlRUBcbrjbu1GnYaV20s+piQhYm1RMSUqY+ArldWKzEzlN3tLYc XdnkaLikdHDRBA4DeNPJGbPU8LQax8wCTaZa1PgT0PqjNX/dCkg3hsc1Em0dH9Zh PKvyX8R6iPdOcakkRm4qdVIacblqE1HYM7T+lyVhu6XP7MWkUmNr05HQBFjhOMcm whv1gS/EeB4y/FcSzn7S23UAmOvxiWfGnOMlnazrOgS00FrbC4accgSB/iXi2lDC szO9MHwfbwDTp8WBLEw8iTPODpq7pnFcBCw80pzblMFqC8v1MAFyriwT7BUmKcR/ h/V75Q95VPAKq+uKsfb5Ruwa9CGKs8ACagLR0BuErT/J83Q7Q4Ezf56FUCvrGDtz 5AWpGUakotwHtJPx6TAOgI+237MFh/GpIOrlEtz+2b5SP6ftHxr8rj+wg1sxmI2y JohOUIFjHtcA4UifhlTU =CB+z -----END PGP SIGNATURE----- Merge tag 'pwm/for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm changes from Thierry Reding: "Mostly bug fixes and clean up. There is a new driver, which is actually moving a custom PWM driver from drivers/misc. The majority of the patches are enhancements to the device tree support in the pwm-backlight driver. Backlights can now additionally be powered using a regulator and enabled using a GPIO in addition to just the PWM input" * tag 'pwm/for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (30 commits) Documentation/pwm: Update supported SoC name for pwm-samsung pwm: samsung: Fix kernel warning while unexporting a channel MAINTAINERS: Move PWM subsystem tree to kernel.org Documentation/pwm: Fix trivial typos pwm-backlight: Remove unused variable pwm_backlight: avoid short blank screen while doing hibernation pwm-backlight: Fix brightness adjustment pwm: add ep93xx PWM support pwm-backlight: Allow for non-increasing brightness levels pwm-backlight: Add power supply support pwm-backlight: Use new enable_gpio field unicore32: Initialize PWM backlight enable_gpio field ARM: shmobile: Initialize PWM backlight enable_gpio field ARM: SAMSUNG: Initialize PWM backlight enable_gpio field ARM: pxa: Initialize PWM backlight enable_gpio field ARM: OMAP: Initialize PWM backlight enable_gpio field pwm-backlight: Add optional enable GPIO pwm-backlight: Track enable state pwm-backlight: Refactor backlight power on/off pwm-backlight: Improve readability ... |
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Linus Torvalds
|
f13399f033 |
Kconfig cleanups for v3.13
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
Pull Kconfig cleanups from Mark Salter:
"Remove some unused config options from C6X and clean up PC_PARPORT
dependencies. The latter was discussed here:
https://lkml.org/lkml/2013/10/8/12"
* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
c6x: remove unused COMMON_CLKDEV Kconfig parameter
Kconfig cleanup (PARPORT_PC dependencies)
x86: select ARCH_MIGHT_HAVE_PC_PARPORT
unicore32: select ARCH_MIGHT_HAVE_PC_PARPORT
sparc: select ARCH_MIGHT_HAVE_PC_PARPORT
sh: select ARCH_MIGHT_HAVE_PC_PARPORT
powerpc: select ARCH_MIGHT_HAVE_PC_PARPORT
parisc: select ARCH_MIGHT_HAVE_PC_PARPORT
mips: select ARCH_MIGHT_HAVE_PC_PARPORT
microblaze: select ARCH_MIGHT_HAVE_PC_PARPORT
m68k: select ARCH_MIGHT_HAVE_PC_PARPORT
ia64: select ARCH_MIGHT_HAVE_PC_PARPORT
arm: select ARCH_MIGHT_HAVE_PC_PARPORT
alpha: select ARCH_MIGHT_HAVE_PC_PARPORT
c6x: remove unused parameter in Kconfig
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Kirill A. Shutemov
|
e90bedbb8a |
unicore32: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Thomas Gleixner
|
00d1a39e69 |
preempt: Make PREEMPT_ACTIVE generic
No point in having this bit defined by architecture. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de |
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Mark Salter
|
e00ca5152b |
unicore32: select ARCH_MIGHT_HAVE_PC_PARPORT
Architectures which support CONFIG_PARPORT_PC should select ARCH_MIGHT_HAVE_PC_PARPORT. Signed-off-by: Mark Salter <msalter@redhat.com> CC: Guan Xuetao <gxt@mprc.pku.edu.cn> |
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Thierry Reding
|
611c86c6de |
unicore32: Initialize PWM backlight enable_gpio field
The GPIO API defines 0 as being a valid GPIO number, so this field needs to be initialized explicitly. Signed-off-by: Thierry Reding <treding@nvidia.com> |
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Peter Zijlstra
|
a787870924 |
sched, arch: Create asm/preempt.h
In order to prepare to per-arch implementations of preempt_count move the required bits into an asm-generic header and use this for all archs. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-h5j0c1r3e3fk015m30h8f1zx@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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|
Martin Schwidefsky
|
0244ad004a |
Remove GENERIC_HARDIRQ config option
After the last architecture switched to generic hard irqs the config options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code for !CONFIG_GENERIC_HARDIRQS can be removed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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Johannes Weiner
|
759496ba64 |
arch: mm: pass userspace fault flag to generic fault handler
Unlike global OOM handling, memory cgroup code will invoke the OOM killer in any OOM situation because it has no way of telling faults occuring in kernel context - which could be handled more gracefully - from user-triggered faults. Pass a flag that identifies faults originating in user space from the architecture-specific fault handlers to generic code so that memcg OOM handling can be improved. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: azurIt <azurit@pobox.sk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
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871341023c |
arch: mm: do not invoke OOM killer on kernel fault OOM
Kernel faults are expected to handle OOM conditions gracefully (gup, uaccess etc.), so they should never invoke the OOM killer. Reserve this for faults triggered in user context when it is the only option. Most architectures already do this, fix up the remaining few. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: azurIt <azurit@pobox.sk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Robin Holt
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1b3a5d02ee |
reboot: move arch/x86 reboot= handling to generic kernel
Merge together the unicore32, arm, and x86 reboot= command line parameter handling. Signed-off-by: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Robin Holt
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c97a700851 |
reboot: unicore32: prepare reboot_mode for moving to generic kernel code
Prepare for the moving the parsing of reboot= to the generic kernel code by making reboot_mode into a more generic form. Signed-off-by: Robin Holt <holt@sgi.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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7f0ef0267e |
Merge branch 'akpm' (updates from Andrew Morton)
Merge first patch-bomb from Andrew Morton: - various misc bits - I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been distracted. There has been quite a bit of activity. - About half the MM queue - Some backlight bits - Various lib/ updates - checkpatch updates - zillions more little rtc patches - ptrace - signals - exec - procfs - rapidio - nbd - aoe - pps - memstick - tools/testing/selftests updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (445 commits) tools/testing/selftests: don't assume the x bit is set on scripts selftests: add .gitignore for kcmp selftests: fix clean target in kcmp Makefile selftests: add .gitignore for vm selftests: add hugetlbfstest self-test: fix make clean selftests: exit 1 on failure kernel/resource.c: remove the unneeded assignment in function __find_resource aio: fix wrong comment in aio_complete() drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode drivers/memstick/host/r592.c: convert to module_pci_driver drivers/memstick/host/jmb38x_ms: convert to module_pci_driver pps-gpio: add device-tree binding and support drivers/pps/clients/pps-gpio.c: convert to module_platform_driver drivers/pps/clients/pps-gpio.c: convert to devm_* helpers drivers/parport/share.c: use kzalloc Documentation/accounting/getdelays.c: avoid strncpy in accounting tool aoe: update internal version number to v83 aoe: update copyright date aoe: perform I/O completions in parallel ... |
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Linus Torvalds
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862f001254 |
PCI changes for the v3.11 merge window:
PCI device hotplug
- Add pci_alloc_dev() interface (Gu Zheng)
- Add pci_bus_get()/put() for reference counting (Jiang Liu)
- Fix SR-IOV reference count issues (Jiang Liu)
- Remove unused acpi_pci_roots list (Jiang Liu)
MSI
- Conserve interrupt resources on x86 (Alexander Gordeev)
AER
- Force fatal severity when component has been reset (Betty Dall)
- Reset link below Root Port as well as Downstream Port (Betty Dall)
- Fix "Firmware first" flag setting (Bjorn Helgaas)
- Don't parse HEST for non-PCIe devices (Bjorn Helgaas)
ASPM
- Warn when we can't disable ASPM as driver requests (Bjorn Helgaas)
Miscellaneous
- Add CircuitCo PCI IDs (Darren Hart)
- Add AMD CZ SATA and SMBus PCI IDs (Shane Huang)
- Work around Ivytown NTB BAR size issue (Jon Mason)
- Detect invalid initial BAR values (Kevin Hao)
- Add pcibios_release_device() (Sebastian Ott)
- Fix powerpc & sparc PCI_UNKNOWN power state usage (Bjorn Helgaas)
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Merge tag 'pci-v3.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"PCI device hotplug
- Add pci_alloc_dev() interface (Gu Zheng)
- Add pci_bus_get()/put() for reference counting (Jiang Liu)
- Fix SR-IOV reference count issues (Jiang Liu)
- Remove unused acpi_pci_roots list (Jiang Liu)
MSI
- Conserve interrupt resources on x86 (Alexander Gordeev)
AER
- Force fatal severity when component has been reset (Betty Dall)
- Reset link below Root Port as well as Downstream Port (Betty Dall)
- Fix "Firmware first" flag setting (Bjorn Helgaas)
- Don't parse HEST for non-PCIe devices (Bjorn Helgaas)
ASPM
- Warn when we can't disable ASPM as driver requests (Bjorn Helgaas)
Miscellaneous
- Add CircuitCo PCI IDs (Darren Hart)
- Add AMD CZ SATA and SMBus PCI IDs (Shane Huang)
- Work around Ivytown NTB BAR size issue (Jon Mason)
- Detect invalid initial BAR values (Kevin Hao)
- Add pcibios_release_device() (Sebastian Ott)
- Fix powerpc & sparc PCI_UNKNOWN power state usage (Bjorn Helgaas)"
* tag 'pci-v3.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (51 commits)
MAINTAINERS: Add ACPI folks for ACPI-related things under drivers/pci
PCI: Add CircuitCo vendor ID and subsystem ID
PCI: Use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)
PCI: Return early on allocation failures to unindent mainline code
PCI: Simplify IOV implementation and fix reference count races
PCI: Drop redundant setting of bus->is_added in virtfn_add_bus()
unicore32/PCI: Remove redundant call of pci_bus_add_devices()
m68k/PCI: Remove redundant call of pci_bus_add_devices()
PCI / ACPI / PM: Use correct power state strings in messages
PCI: Fix comment typo for pcie_pme_remove()
PCI: Rename pci_release_bus_bridge_dev() to pci_release_host_bridge_dev()
PCI: Fix refcount issue in pci_create_root_bus() error recovery path
ia64/PCI: Clean up pci_scan_root_bus() usage
PCI/AER: Reset link for devices below Root Port or Downstream Port
ACPI / APEI: Force fatal AER severity when component has been reset
PCI/AER: Remove "extern" from function declarations
PCI/AER: Move AER severity defines to aer.h
PCI/AER: Set dev->__aer_firmware_first only for matching devices
PCI/AER: Factor out HEST device type matching
PCI/AER: Don't parse HEST table for non-PCIe devices
...
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Jiang Liu
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b26a3dfd4c |
mm/unicore32: fix stale comment about VALID_PAGE()
VALID_PAGE() has been removed from kernel long time ago, so fix the comment. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jiang Liu
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0d0b6d26ad |
mm/unicore32: prepare for removing num_physpages and simplify mem_init()
Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Michal Hocko <mhocko@suse.cz> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jiang Liu
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0c98853473 |
mm: concentrate modification of totalram_pages into the mm core
Concentrate code to modify totalram_pages into the mm core, so the arch memory initialized code doesn't need to take care of it. With these changes applied, only following functions from mm core modify global variable totalram_pages: free_bootmem_late(), free_all_bootmem(), free_all_bootmem_node(), adjust_managed_page_count(). With this patch applied, it will be much more easier for us to keep totalram_pages and zone->managed_pages in consistence. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: David Howells <dhowells@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: <sworddragon2@aol.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michel Lespinasse <walken@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jiang Liu
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dbe67df4ba |
mm: enhance free_reserved_area() to support poisoning memory with zero
Address more review comments from last round of code review. 1) Enhance free_reserved_area() to support poisoning freed memory with pattern '0'. This could be used to get rid of poison_init_mem() on ARM64. 2) A previous patch has disabled memory poison for initmem on s390 by mistake, so restore to the original behavior. 3) Remove redundant PAGE_ALIGN() when calling free_reserved_area(). Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: <sworddragon2@aol.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michel Lespinasse <walken@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jiang Liu
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11199692d8 |
mm: change signature of free_reserved_area() to fix building warnings
Change signature of free_reserved_area() according to Russell King's
suggestion to fix following build warnings:
arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:603:2: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [enabled by default]
free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL);
^
In file included from include/linux/mman.h:4:0,
from arch/arm/mm/init.c:15:
include/linux/mm.h:1301:22: note: expected 'long unsigned int' but argument is of type 'void *'
extern unsigned long free_reserved_area(unsigned long start, unsigned long end,
mm/page_alloc.c: In function 'free_reserved_area':
>> mm/page_alloc.c:5134:3: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast [enabled by default]
In file included from arch/mips/include/asm/page.h:49:0,
from include/linux/mmzone.h:20,
from include/linux/gfp.h:4,
from include/linux/mm.h:8,
from mm/page_alloc.c:18:
arch/mips/include/asm/io.h:119:29: note: expected 'const volatile void *' but argument is of type 'long unsigned int'
mm/page_alloc.c: In function 'free_area_init_nodes':
mm/page_alloc.c:5030:34: warning: array subscript is below array bounds [-Warray-bounds]
Also address some minor code review comments.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: <sworddragon2@aol.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
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ab53485739 |
Merge branch 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull "exotic" arch fixes from Geert Uytterhoeven: "This is a collection of several exotic architecture fixes, and a few other fixes for issues that were detected while doing the former" * 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (35 commits) lib: Move fonts from drivers/video/console/ to lib/fonts/ console/font: Refactor font support code selection logic Revert "staging/solo6x10: depend on CONFIG_FONTS" input: cros_ec_keyb_clear_keyboard() depends on CONFIG_PM_SLEEP score: Wire up asm-generic/xor.h score: Remove unneeded <asm/dma-mapping.h> openrisc: Wire up asm-generic/xor.h h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]" h8300: Mark H83002 and H83048 CPU support broken h8300: Switch h8300 to drivers/Kconfig h8300: Limit timer channel ranges in Kconfig h8300: Wire up asm-generic/xor.h h8300: Fill the system call table using a CALL() macro h8300: Fix <asm/tlb.h> h8300: Hardcode symbol prefixes in asm sources h8300: add missing definition for read_barries_depends() frv: head.S - Remove commented-out initialization code cris: Wire up asm-generic/vga.h parport: disable PC-style parallel port support on cris console: Disable VGA text console support on cris ... |
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Al Viro
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40d158e618 |
consolidate io_remap_pfn_range definitions
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Geert Uytterhoeven
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ee89bd6bc7 |
lib: Move fonts from drivers/video/console/ to lib/fonts/
Several drivers need font support independent of CONFIG_VT, cfr. commit 9cbce8d7e1dae0744ca4f68d62aa7de18196b6f4, "console/font: Refactor font support code selection logic"). Hence move the fonts and their support logic from drivers/video/console/ to its own library directory lib/fonts/. This also allows to limit processing of drivers/video/console/Makefile to CONFIG_VT=y again. [Kevin Hilman <khilman@linaro.org>: Update arch/arm/boot/compressed/Makefile] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> |
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Jiang Liu
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c13e396ebf |
unicore32/PCI: Remove redundant call of pci_bus_add_devices()
pci_scan_bus() has called pci_bus_add_devices() already, so remove the redundant call of pci_bus_add_devices(). subsys_init() callbacks will be invoked before device_init() callbacks, so it should be safe to remove the redundant calls. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Linus Torvalds
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3644bc2ec7 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull stray syscall bits from Al Viro: "Several syscall-related commits that were missing from the original" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: switch compat_sys_sysctl to COMPAT_SYSCALL_DEFINE unicore32: just use mmap_pgoff()... unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...) |
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Al Viro
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6dd9148bc5 |
unicore32: just use mmap_pgoff()...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Linus Torvalds
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5647ac0ad4 |
Removal of GENERIC_GPIO for v3.10
GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO. However, it is not trivial to just create a branch to remove it. Over the course of the v3.9 cycle more code referencing GENERIC_GPIO has been added to linux-next that conflicts with this branch. The following must be done to resolve the conflicts when merging this branch into mainline: * "git grep CONFIG_GENERIC_GPIO" should return 0 hits. Matches should be replaced with CONFIG_GPIOLIB * "git grep '\bGENERIC_GPIO\b'" should return 1 hit in the Chinese documentation. * Selectors of GENERIC_GPIO should be turned into selectors of GPIOLIB * definitions of the option in architecture Kconfig code should be deleted. Stephen has 3 merge fixup patches[1] that do the above. They are currently applicable on mainline as of May 2nd. [1] http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg428056.html -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAABAgAGBQJRifUnAAoJEEFnBt12D9kBs2YP/0U6+ia+xYvkVaJc28PDVIzn OReZNcJOYU8D5voxz0voaRD0EdcPwjbMu9Kp9aXMHlk4VxevF+8jCc/us0bIjtO1 VcB5VmSCIhMhxdnBlum11Mk7Vr5MCweyl9NBsypnPt8cl4obMBZHf2yzoodFktNb wtyYlOb6FALtc6iDbOO6dG3w9F7FAOLvskUFzdv89m8mupTsBu9jw9NqFDbJHOex rxq0Sdd+kWF/nkJVcV5Y6jIdletRlhpipefMJ9diexreHvwqh+c4kJEYZaXgB5+m ha95cPbReK1d+RqzM3A8d4irzSVSmq4k7ijI6QkFOr48+AH7XsgKv5so885LKzMN IIXg2Phm9i0H8+ecEvhcc4oIYBHJiEKK54Y0qUD9dqbFoDGPTCSqMHdSSMbpAY+J bIIXlVzj1En3PPNUJLPt8q8Qz6WxCT9mDST3QSGYnD4o90HT+1R9j92RxGL6McOq rUOyJDwmzFvpBvKK4raGdOU435M+ps2NPKKNIRaIGQPPY9rM1kN4YqvhXukEsC9L 3a3+3cQLh7iKxBHncxeQsJfethP1CPkJnzvF9r+ZZLf2rcPH4pbQIE2uO0XnX/nd 5/DKi0nGgAJ//GMMzdo3RiOA5zGFjIZ/KMvfhQldpP6qFJRhqdGi6FPlAcwr1z1n YnCByPwwlvfC4LTXFOGL =xodc -----END PGP SIGNATURE----- Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select |
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Linus Torvalds
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5f56886521 |
Merge branch 'akpm' (incoming from Andrew)
Merge third batch of fixes from Andrew Morton: "Most of the rest. I still have two large patchsets against AIO and IPC, but they're a bit stuck behind other trees and I'm about to vanish for six days. - random fixlets - inotify - more of the MM queue - show_stack() cleanups - DMI update - kthread/workqueue things - compat cleanups - epoll udpates - binfmt updates - nilfs2 - hfs - hfsplus - ptrace - kmod - coredump - kexec - rbtree - pids - pidns - pps - semaphore tweaks - some w1 patches - relay updates - core Kconfig changes - sysrq tweaks" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits) Documentation/sysrq: fix inconstistent help message of sysrq key ethernet/emac/sysrq: fix inconstistent help message of sysrq key sparc/sysrq: fix inconstistent help message of sysrq key powerpc/xmon/sysrq: fix inconstistent help message of sysrq key ARM/etm/sysrq: fix inconstistent help message of sysrq key power/sysrq: fix inconstistent help message of sysrq key kgdb/sysrq: fix inconstistent help message of sysrq key lib/decompress.c: fix initconst notifier-error-inject: fix module names in Kconfig kernel/sys.c: make prctl(PR_SET_MM) generally available UAPI: remove empty Kbuild files menuconfig: print more info for symbol without prompts init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display kconfig menu: move Virtualization drivers near other virtualization options Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS relay: use macro PAGE_ALIGN instead of FIX_SIZE kernel/relay.c: move FIX_SIZE macro into relay.c kernel/relay.c: remove unused function argument actor drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave() drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave() ... |
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Tejun Heo
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a43cb95d54 |
dump_stack: unify debug information printed by show_regs()
show_regs() is inherently arch-dependent but it does make sense to print generic debug information and some archs already do albeit in slightly different forms. This patch introduces a generic function to print debug information from show_regs() so that different archs print out the same information and it's much easier to modify what's printed. show_regs_print_info() prints out the same debug info as dump_stack() does plus task and thread_info pointers. * Archs which didn't print debug info now do. alpha, arc, blackfin, c6x, cris, frv, h8300, hexagon, ia64, m32r, metag, microblaze, mn10300, openrisc, parisc, score, sh64, sparc, um, xtensa * Already prints debug info. Replaced with show_regs_print_info(). The printed information is superset of what used to be there. arm, arm64, avr32, mips, powerpc, sh32, tile, unicore32, x86 * s390 is special in that it used to print arch-specific information along with generic debug info. Heiko and Martin think that the arch-specific extra isn't worth keeping s390 specfic implementation. Converted to use the generic version. Note that now all archs print the debug info before actual register dumps. An example BUG() dump follows. kernel BUG at /work/os/work/kernel/workqueue.c:4841! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #7 Hardware name: empty empty/S3992, BIOS 080011 10/26/2007 task: ffff88007c85e040 ti: ffff88007c860000 task.ti: ffff88007c860000 RIP: 0010:[<ffffffff8234a07e>] [<ffffffff8234a07e>] init_workqueues+0x4/0x6 RSP: 0000:ffff88007c861ec8 EFLAGS: 00010246 RAX: ffff88007c861fd8 RBX: ffffffff824466a8 RCX: 0000000000000001 RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffffffff8234a07a RBP: ffff88007c861ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8234a07a R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffff88015f7ff000 CR3: 00000000021f1000 CR4: 00000000000007f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Stack: ffff88007c861ef8 ffffffff81000312 ffffffff824466a8 ffff88007c85e650 0000000000000003 0000000000000000 ffff88007c861f38 ffffffff82335e5d ffff88007c862080 ffffffff8223d8c0 ffff88007c862080 ffffffff81c47760 Call Trace: [<ffffffff81000312>] do_one_initcall+0x122/0x170 [<ffffffff82335e5d>] kernel_init_freeable+0x9b/0x1c8 [<ffffffff81c47760>] ? rest_init+0x140/0x140 [<ffffffff81c4776e>] kernel_init+0xe/0xf0 [<ffffffff81c6be9c>] ret_from_fork+0x7c/0xb0 [<ffffffff81c47760>] ? rest_init+0x140/0x140 ... v2: Typo fix in x86-32. v3: CPU number dropped from show_regs_print_info() as dump_stack_print_info() has been updated to print it. s390 specific implementation dropped as requested by s390 maintainers. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [tile bits] Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon bits] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tejun Heo
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196779b9b4 |
dump_stack: consolidate dump_stack() implementations and unify their behaviors
Both dump_stack() and show_stack() are currently implemented by each architecture. show_stack(NULL, NULL) dumps the backtrace for the current task as does dump_stack(). On some archs, dump_stack() prints extra information - pid, utsname and so on - in addition to the backtrace while the two are identical on other archs. The usages in arch-independent code of the two functions indicate show_stack(NULL, NULL) should print out bare backtrace while dump_stack() is used for debugging purposes when something went wrong, so it does make sense to print additional information on the task which triggered dump_stack(). There's no reason to require archs to implement two separate but mostly identical functions. It leads to unnecessary subtle information. This patch expands the dummy fallback dump_stack() implementation in lib/dump_stack.c such that it prints out debug information (taken from x86) and invokes show_stack(NULL, NULL) and drops arch-specific dump_stack() implementations in all archs except blackfin. Blackfin's dump_stack() does something wonky that I don't understand. Debug information can be printed separately by calling dump_stack_print_info() so that arch-specific dump_stack() implementation can still emit the same debug information. This is used in blackfin. This patch brings the following behavior changes. * On some archs, an extra level in backtrace for show_stack() could be printed. This is because the top frame was determined in dump_stack() on those archs while generic dump_stack() can't do that reliably. It can be compensated by inlining dump_stack() but not sure whether that'd be necessary. * Most archs didn't use to print debug info on dump_stack(). They do now. An example WARN dump follows. WARNING: at kernel/workqueue.c:4841 init_workqueues+0x35/0x505() Hardware name: empty Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #9 0000000000000009 ffff88007c861e08 ffffffff81c614dc ffff88007c861e48 ffffffff8108f50f ffffffff82228240 0000000000000040 ffffffff8234a03c 0000000000000000 0000000000000000 0000000000000000 ffff88007c861e58 Call Trace: [<ffffffff81c614dc>] dump_stack+0x19/0x1b [<ffffffff8108f50f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff8108f56a>] warn_slowpath_null+0x1a/0x20 [<ffffffff8234a071>] init_workqueues+0x35/0x505 ... v2: CPU number added to the generic debug info as requested by s390 folks and dropped the s390 specific dump_stack(). This loses %ksp from the debug message which the maintainers think isn't important enough to keep the s390-specific dump_stack() implementation. dump_stack_print_info() is moved to kernel/printk.c from lib/dump_stack.c. Because linkage is per objecct file, dump_stack_print_info() living in the same lib file as generic dump_stack() means that archs which implement custom dump_stack() - at this point, only blackfin - can't use dump_stack_print_info() as that will bring in the generic version of dump_stack() too. v1 The v1 patch broke build on blackfin due to this issue. The build breakage was reported by Fengguang Wu. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390 bits] Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon bits] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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3ed1c478ef |
Power management and ACPI updates for 3.10-rc1
- ARM big.LITTLE cpufreq driver from Viresh Kumar.
- exynos5440 cpufreq driver from Amit Daniel Kachhap.
- cpufreq core cleanup and code consolidation from Viresh Kumar and
Stratos Karafotis.
- cpufreq scalability improvement from Nathan Zimmer.
- AMD "frequency sensitivity feedback" powersave bias for the ondemand
cpufreq governor from Jacob Shin.
- cpuidle code consolidation and cleanups from Daniel Lezcano.
- ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.
- ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim,
Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.
- ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
Yasuaki Ishimatsu, and Rafael J. Wysocki.
- Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements
from Rafael J. Wysocki and Andy Shevchenko.
/
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Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael J Wysocki:
- ARM big.LITTLE cpufreq driver from Viresh Kumar.
- exynos5440 cpufreq driver from Amit Daniel Kachhap.
- cpufreq core cleanup and code consolidation from Viresh Kumar and
Stratos Karafotis.
- cpufreq scalability improvement from Nathan Zimmer.
- AMD "frequency sensitivity feedback" powersave bias for the ondemand
cpufreq governor from Jacob Shin.
- cpuidle code consolidation and cleanups from Daniel Lezcano.
- ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.
- ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv
Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.
- ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
Yasuaki Ishimatsu, and Rafael J Wysocki.
- Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from
Rafael J Wysocki and Andy Shevchenko.
* tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits)
cpufreq: Revert incorrect commit
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Linus Torvalds
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8700c95adb |
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP/hotplug changes from Ingo Molnar: "This is a pretty large, multi-arch series unifying and generalizing the various disjunct pieces of idle routines that architectures have historically copied from each other and have grown in random, wildly inconsistent and sometimes buggy directions: 101 files changed, 455 insertions(+), 1328 deletions(-) this went through a number of review and test iterations before it was committed, it was tested on various architectures, was exposed to linux-next for quite some time - nevertheless it might cause problems on architectures that don't read the mailing lists and don't regularly test linux-next. This cat herding excercise was motivated by the -rt kernel, and was brought to you by Thomas "the Whip" Gleixner." * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) idle: Remove GENERIC_IDLE_LOOP config switch um: Use generic idle loop ia64: Make sure interrupts enabled when we "safe_halt()" sparc: Use generic idle loop idle: Remove unused ARCH_HAS_DEFAULT_IDLE bfin: Fix typo in arch_cpu_idle() xtensa: Use generic idle loop x86: Use generic idle loop unicore: Use generic idle loop tile: Use generic idle loop tile: Enter idle with preemption disabled sh: Use generic idle loop score: Use generic idle loop s390: Use generic idle loop powerpc: Use generic idle loop parisc: Use generic idle loop openrisc: Use generic idle loop mn10300: Use generic idle loop mips: Use generic idle loop microblaze: Use generic idle loop ... |
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Thomas Gleixner
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d0380e6c3c |
early_printk: consolidate random copies of identical code
The early console implementations are the same all over the place. Move the print function to kernel/printk and get rid of the copies. [akpm@linux-foundation.org: arch/mips/kernel/early_printk.c needs kernel.h for va_list] [paul.gortmaker@windriver.com: sh4: make the bios early console support depend on EARLY_PRINTK] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Mike Frysinger <vapier@gentoo.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Richard Weinberger <richard@nod.at> Reviewed-by: Ingo Molnar <mingo@kernel.org> Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joonsoo Kim
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ef93247325 |
mm, vmalloc: change iterating a vmlist to find_vm_area()
This patchset removes vm_struct list management after initializing vmalloc. Adding and removing an entry to vmlist is linear time complexity, so it is inefficient. If we maintain this list, overall time complexity of adding and removing area to vmalloc space is O(N), although we use rbtree for finding vacant place and it's time complexity is just O(logN). And vmlist and vmlist_lock is used many places of outside of vmalloc.c. It is preferable that we hide this raw data structure and provide well-defined function for supporting them, because it makes that they cannot mistake when manipulating theses structure and it makes us easily maintain vmalloc layer. For kexec and makedumpfile, I export vmap_area_list, instead of vmlist. This comes from Atsushi's recommendation. For more information, please refer below link. https://lkml.org/lkml/2012/12/6/184 This patch: The purpose of iterating a vmlist is finding vm area with specific virtual address. find_vm_area() is provided for this purpose and more efficient, because it uses a rbtree. So change it. Signed-off-by: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp> Cc: Dave Anderson <anderson@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jiang Liu
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ccecb510a9 |
mm/unicore32: use common help functions to free reserved pages
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Rientjes
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4b59e6c473 |
mm, show_mem: suppress page counts in non-blockable contexts
On large systems with a lot of memory, walking all RAM to determine page types may take a half second or even more. In non-blockable contexts, the page allocator will emit a page allocation failure warning unless __GFP_NOWARN is specified. In such contexts, irqs are typically disabled and such a lengthy delay may even result in NMI watchdog timeouts. To fix this, suppress the page walk in such contexts when printing the page allocation failure warning. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mgorman@suse.de> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Thomas Gleixner
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d190e8195b |
idle: Remove GENERIC_IDLE_LOOP config switch
All archs are converted over. Remove the config switch and the fallback code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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Alexandre Courbot
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7fd2bf3d32 |
Remove GENERIC_GPIO config option
GENERIC_GPIO has been made equivalent to GPIOLIB in architecture code and all driver code has been switch to depend on GPIOLIB. It is thus safe to have GENERIC_GPIO removed. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> |
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Alexandre Courbot
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76ec9d18b8 |
Convert selectors of GENERIC_GPIO to GPIOLIB
GENERIC_GPIO is now equivalent to GPIOLIB and features that depended on GENERIC_GPIO can now depend on GPIOLIB to allow removal of this option. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> |
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Viresh Kumar
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73cc9c8cac |
cpufreq: unicore2: move cpufreq driver to drivers/cpufreq
This patch moves cpufreq driver of UNICORE-2 architecture to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Thomas Gleixner
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aba92c9e2c |
unicore: Use generic idle loop
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Link: http://lkml.kernel.org/r/20130321215235.415426466@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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Viresh Kumar
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b43a7ffbf3 |
cpufreq: Notify all policy->cpus in cpufreq_notify_transition()
policy->cpus contains all online cpus that have single shared clock line. And their frequencies are always updated together. Many SMP system's cpufreq drivers take care of this in individual drivers but the best place for this code is in cpufreq core. This patch modifies cpufreq_notify_transition() to notify frequency change for all cpus in policy->cpus and hence updates all users of this API. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Alexandre Courbot
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aef1552bc1 |
unicore32: default GENERIC_GPIO to false
GPIO implementation for unicore32 uses gpiolib, which sets GENERIC_GPIO when selected. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> |
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Alexandre Courbot
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d80a357809 |
unicore32: remove unneeded select GENERIC_GPIO
PUV3_GPIO depends on ARCH_PUV3 which requires GPIOLIB and thus already selects GENERIC_GPIO Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> |
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Stephen Rothwell
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4febd95a8a |
Select VIRT_TO_BUS directly where needed
In commit
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Stephen Rothwell
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887cbce0ad |
arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS
Change it to CONFIG_HAVE_VIRT_TO_BUS and set it in all architecures that already provide virt_to_bus(). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: H Hartley Sweeten <hartleys@visionengravers.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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9043a2650c |
The sweeping change is to make add_taint() explicitly indicate whether to disable
lockdep, but it's a mechanical change. Cheers, Rusty. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJRJAcuAAoJENkgDmzRrbjxsw0P/3eXb+LddYnx0V0uHYdKpCUf 4vdW7X0fX3Z+aUK69IWRL/6ahoO4TpaHYGHBDjEoivyQ0GDq14X7JNWsYYt3LdMf 3wmDgRc2cn/mZOJbFeVpNV8ox5l/xc0CUvV+iQ8tMjfQItXMXgWUFZKMECsXKSO6 eex3lrw9M2jAX2uL8LQPp9W8xtKu24nSZRC6tH5riE/8fCzi1cZPPAqfxP5c8Lee ZXtbCRSyAFENZLpKyMe1PC7HvtJyi5NDn9xwOQiXULZV/VOlvP94DGBLIKCM/6dn 4QvZxpG0P0uOlpCgRAVLyh/z7g4XY4VF/fHopLCmEcqLsvgD+V2LQpQ9zWUalLPC Z+pUpz2vu0gIddPU1nR8R6oGpEdJ8O12aJle62p/RSXWZGx12qUQ+Tamu0tgKcv1 AsiJfbUGNDYfxgU6sHsoQjl2f68LTVckCU1C1LqEbW/S104EIORtGx30CHM4LRiO 32kDC5TtgYDBKQAIqJ4bL48ZMh+9W3uX40p7xzOI5khHQjvswUKa3jcxupU0C1uv lx8KXo7pn8WT33QGysWC782wJCgJuzSc2vRn+KQoqoynuHGM6agaEtR59gil3QWO rQEcxH63BBRDgHlg4FM9IkJwwsnC3PWKL8gbX0uAWXAPMbgapJkuuGZAwt0WDGVK +GszxsFkCjlW0mK0egTb =tiSY -----END PGP SIGNATURE----- Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "The sweeping change is to make add_taint() explicitly indicate whether to disable lockdep, but it's a mechanical change." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Add option to not sign modules during modules_install MODSIGN: Add -s <signature> option to sign-file MODSIGN: Specify the hash algorithm on sign-file command line MODSIGN: Simplify Makefile with a Kconfig helper module: clean up load_module a little more. modpost: Ignore ARC specific non-alloc sections module: constify within_module_* taint: add explicit flag to show whether lock dep is still OK. module: printk message when module signature fail taints kernel. |
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Linus Torvalds
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9e2d59ad58 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull signal handling cleanups from Al Viro:
"This is the first pile; another one will come a bit later and will
contain SYSCALL_DEFINE-related patches.
- a bunch of signal-related syscalls (both native and compat)
unified.
- a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE
(fixing several potential problems with missing argument
validation, while we are at it)
- a lot of now-pointless wrappers killed
- a couple of architectures (cris and hexagon) forgot to save
altstack settings into sigframe, even though they used the
(uninitialized) values in sigreturn; fixed.
- microblaze fixes for delivery of multiple signals arriving at once
- saner set of helpers for signal delivery introduced, several
architectures switched to using those."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits)
x86: convert to ksignal
sparc: convert to ksignal
arm: switch to struct ksignal * passing
alpha: pass k_sigaction and siginfo_t using ksignal pointer
burying unused conditionals
make do_sigaltstack() static
arm64: switch to generic old sigaction() (compat-only)
arm64: switch to generic compat rt_sigaction()
arm64: switch compat to generic old sigsuspend
arm64: switch to generic compat rt_sigqueueinfo()
arm64: switch to generic compat rt_sigpending()
arm64: switch to generic compat rt_sigprocmask()
arm64: switch to generic sigaltstack
sparc: switch to generic old sigsuspend
sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE
sparc: kill sign-extending wrappers for native syscalls
kill sparc32_open()
sparc: switch to use of generic old sigaction
sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE
mips: switch to generic sys_fork() and sys_clone()
...
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Len Brown
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6ae236c05d |
unicore32 idle: delete stray pm_idle comment
as pm_idle() has already been deleted from this code, the comment was a stray. Signed-off-by: Len Brown <len.brown@intel.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> |
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Al Viro
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d64008a8f3 |
burying unused conditionals
__ARCH_WANT_SYS_RT_SIGACTION,
__ARCH_WANT_SYS_RT_SIGSUSPEND,
__ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND,
__ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL - not used anymore
CONFIG_GENERIC_{SIGALTSTACK,COMPAT_RT_SIG{ACTION,QUEUEINFO,PENDING,PROCMASK}} -
can be assumed always set.
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Al Viro
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50b3c9e30a |
unicore32: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Rusty Russell
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373d4d0997 |
taint: add explicit flag to show whether lock dep is still OK.
Fix up all callers as they were before, with make one change: an unsigned module taints the kernel, but doesn't turn off lockdep. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> |
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Greg Kroah-Hartman
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b881bc469b |
ARCH: drivers remove __dev* attributes.
This fixes up all of the smaller arches that had __dev* markings for their platform-specific drivers. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Bob Liu <lliubbo@gmail.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Myron Stowe <myron.stowe@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Thierry Reding <thierry.reding@avionic-design.de> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Cc: Mark Salter <msalter@redhat.com> Cc: Yong Zhang <yong.zhang0@gmail.com> Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Jan Glauber <jang@linux.vnet.ibm.com> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
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54d46ea993 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull signal handling cleanups from Al Viro: "sigaltstack infrastructure + conversion for x86, alpha and um, COMPAT_SYSCALL_DEFINE infrastructure. Note that there are several conflicts between "unify SS_ONSTACK/SS_DISABLE definitions" and UAPI patches in mainline; resolution is trivial - just remove definitions of SS_ONSTACK and SS_DISABLED from arch/*/uapi/asm/signal.h; they are all identical and include/uapi/linux/signal.h contains the unified variant." Fixed up conflicts as per Al. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: alpha: switch to generic sigaltstack new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those generic compat_sys_sigaltstack() introduce generic sys_sigaltstack(), switch x86 and um to it new helper: compat_user_stack_pointer() new helper: restore_altstack() unify SS_ONSTACK/SS_DISABLE definitions new helper: current_user_stack_pointer() missing user_stack_pointer() instances Bury the conditionals from kernel_thread/kernel_execve series COMPAT_SYSCALL_DEFINE: infrastructure |
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Al Viro
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5208ba24e7 |
missing user_stack_pointer() instances
for the architectures that have usp in pt_regs and do not have user_stack_pointer() already defined. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
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ae903caae2 |
Bury the conditionals from kernel_thread/kernel_execve series
All architectures have CONFIG_GENERIC_KERNEL_THREAD CONFIG_GENERIC_KERNEL_EXECVE __ARCH_WANT_SYS_EXECVE None of them have __ARCH_WANT_KERNEL_EXECVE and there are only two callers of kernel_execve() (which is a trivial wrapper for do_execve() now) left. Kill the conditionals and make both callers use do_execve(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Linus Torvalds
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7a684c452e |
Nothing all that exciting; a new module-from-fd syscall for those who want
to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQ0VKlAAoJENkgDmzRrbjxjuEQALVHpD1cSmryOzVwkNn7rVGP PV3KVbUs+qzUCm2c3AafIIlSBm2LOUl+cR3uNC7di8aHarRF3VHkK2OQ4Fx97ECd KKBqAyY3R0q1mAKujb/MWwiK0YgosEDIOzGGn2yQhNFsxKqnMB02P4j82IO7+g+w Cc3XuDyWHoH2I+ySgz0Q8NHAqufD/DMZUKud7jw2Lsv6PuICJ1Oqgl/Gd/muxort 4a5tV3tjhRGywHS/8b2fbDUXkybC5NKK0FN+gyoaROmJ/THeHEQDGXZT9bc2vmVx HvRy/5k8dzQ6LAJ2mLnPvy0pmv0u7NYMvjxTxxUlUkFMkYuVticikQfwSYDbDPt4 mbsLxchpgi8z4x8HltEERffCX5tldo/5hz1uemqhqIsMRIrRFnlHkSIgkGjVHf2u LXQBLT8uTm6C0VyNQPrI/hUZzIax7WtKbPSoK9lmExNbKqloEFh/mVXvfQxei2kp wnUZcnmPIqSvw7b4CWu7HibMYu2VvGBgm3YIfJRi4AQme1mzFYLpZoxF5Pj+Ykbt T//Hb1EsNQTTFCg7MZhnJSAw/EVUvNDUoullORClyqw6+xxjVKqWpPJgYDRfWOlJ Xa+s7DNrL+Oo1WWR8l5ruoQszbR8szIyeyPKKxRUcQj2zsqghoWuzKAx2saSEw3W pNkoJU+dGC7kG/yVAS8N =uoJj -----END PGP SIGNATURE----- Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "Nothing all that exciting; a new module-from-fd syscall for those who want to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Fix kbuild output when using default extra_certificates MODSIGN: Avoid using .incbin in C source modules: don't hand 0 to vmalloc. module: Remove a extra null character at the top of module->strtab. ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants ASN.1: Define indefinite length marker constant moduleparam: use __UNIQUE_ID() __UNIQUE_ID() MODSIGN: Add modules_sign make target powerpc: add finit_module syscall. ima: support new kernel module syscall add finit_module syscall to asm-generic ARM: add finit_module syscall to ARM security: introduce kernel_module_from_file hook module: add flags arg to sys_finit_module() module: add syscall to load module from fd |
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Rusty Russell
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82fab442f5 |
modules: don't hand 0 to vmalloc.
In commit |
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Linus Torvalds
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9977d9b379 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull big execve/kernel_thread/fork unification series from Al Viro:
"All architectures are converted to new model. Quite a bit of that
stuff is actually shared with architecture trees; in such cases it's
literally shared branch pulled by both, not a cherry-pick.
A lot of ugliness and black magic is gone (-3KLoC total in this one):
- kernel_thread()/kernel_execve()/sys_execve() redesign.
We don't do syscalls from kernel anymore for either kernel_thread()
or kernel_execve():
kernel_thread() is essentially clone(2) with callback run before we
return to userland, the callbacks either never return or do
successful do_execve() before returning.
kernel_execve() is a wrapper for do_execve() - it doesn't need to
do transition to user mode anymore.
As a result kernel_thread() and kernel_execve() are
arch-independent now - they live in kernel/fork.c and fs/exec.c
resp. sys_execve() is also in fs/exec.c and it's completely
architecture-independent.
- daemonize() is gone, along with its parts in fs/*.c
- struct pt_regs * is no longer passed to do_fork/copy_process/
copy_thread/do_execve/search_binary_handler/->load_binary/do_coredump.
- sys_fork()/sys_vfork()/sys_clone() unified; some architectures
still need wrappers (ones with callee-saved registers not saved in
pt_regs on syscall entry), but the main part of those suckers is in
kernel/fork.c now."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (113 commits)
do_coredump(): get rid of pt_regs argument
print_fatal_signal(): get rid of pt_regs argument
ptrace_signal(): get rid of unused arguments
get rid of ptrace_signal_deliver() arguments
new helper: signal_pt_regs()
unify default ptrace_signal_deliver
flagday: kill pt_regs argument of do_fork()
death to idle_regs()
don't pass regs to copy_process()
flagday: don't pass regs to copy_thread()
bfin: switch to generic vfork, get rid of pointless wrappers
xtensa: switch to generic clone()
openrisc: switch to use of generic fork and clone
unicore32: switch to generic clone(2)
score: switch to generic fork/vfork/clone
c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone()
take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h
mn10300: switch to generic fork/vfork/clone
h8300: switch to generic fork/vfork/clone
tile: switch to generic clone()
...
Conflicts:
arch/microblaze/include/asm/Kbuild
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Linus Torvalds
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090f8ccba3 |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Lots of activity:
211 files changed, 8328 insertions(+), 4116 deletions(-)
most of it on the tooling side.
Main changes:
* ftrace enhancements and fixes from Steve Rostedt.
* uprobes fixes, cleanups and preparation for the ARM port from Oleg
Nesterov.
* UAPI fixes, from David Howels - prepares the arch/x86 UAPI
transition
* Separate perf tests into multiple objects, one per test, from Jiri
Olsa.
* Make hardware event translations available in sysfs, from Jiri
Olsa.
* Fixes to /proc/pid/maps parsing, preparatory to supporting data
maps, from Namhyung Kim
* Implement ui_progress for GTK, from Namhyung Kim
* Add framework for automated perf_event_attr tests, where tools with
different command line options will be run from a 'perf test', via
python glue, and the perf syscall will be intercepted to verify
that the perf_event_attr fields set by the tool are those expected,
from Jiri Olsa
* Add a 'link' method for hists, so that we can have the leader with
buckets for all the entries in all the hists. This new method is
now used in the default 'diff' output, making the sum of the
'baseline' column be 100%, eliminating blind spots.
* libtraceevent fixes for compiler warnings trying to make perf it
build on some distros, like fedora 14, 32-bit, some of the warnings
really pointed to real bugs.
* Add a browser for 'perf script' and make it available from the
report and annotate browsers. It does filtering to find the
scripts that handle events found in the perf.data file used. From
Feng Tang
* perf inject changes to allow showing where a task sleeps, from
Andrew Vagin.
* Makefile improvements from Namhyung Kim.
* Add --pre and --post command hooks in 'stat', from Peter Zijlstra.
* Don't stop synthesizing threads when one vanishes, this is for the
existing threads when we start a tool like trace.
* Use sched:sched_stat_runtime to provide a thread summary, this
produces the same output as the 'trace summary' subcommand of
tglx's original "trace" tool.
* Support interrupted syscalls in 'trace'
* Add an event duration column and filter in 'trace'.
* There are references to the man pages in some tools, so try to
build Documentation when installing, warning the user if that is
not possible, from Borislav Petkov.
* Give user better message if precise is not supported, from David
Ahern.
* Try to find cross-built objdump path by using the session
environment information in the perf.data file header, from Irina
Tirdea, original patch and idea by Namhyung Kim.
* Diplays more output on features check for make V=1, so that one can
figure out what is happening by looking at gcc output, etc. From
Jiri Olsa.
* Add on_exit implementation for systems without one, e.g. Android,
from Bernhard Rosenkraenzer.
* Only process events for vcpus of interest, helps handling large
number of events, from David Ahern.
* Cross compilation fixes for Android, from Irina Tirdea.
* Add documentation on compiling for Android, from Irina Tirdea.
* perf diff improvements from Jiri Olsa.
* Target (task/user/cpu/syswide) handling improvements, from Namhyung
Kim.
* Add support in 'trace' for tracing workload given by command line,
from Namhyung Kim.
* ... and much more."
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (194 commits)
uprobes: Use percpu_rw_semaphore to fix register/unregister vs dup_mmap() race
perf evsel: Introduce is_group_member method
perf powerpc: Use uapi/unistd.h to fix build error
tools: Pass the target in descend
tools: Honour the O= flag when tool build called from a higher Makefile
tools: Define a Makefile function to do subdir processing
perf ui: Always compile browser setup code
perf ui: Add ui_progress__finish()
perf ui gtk: Implement ui_progress functions
perf ui: Introduce generic ui_progress helper
perf ui tui: Move progress.c under ui/tui directory
perf tools: Add basic event modifier sanity check
perf tools: Omit group members from perf_evlist__disable/enable
perf tools: Ensure single disable call per event in record comand
perf tools: Fix 'disabled' attribute config for record command
perf tools: Fix attributes for '{}' defined event groups
perf tools: Use sscanf for parsing /proc/pid/maps
perf tools: Add gtk.<command> config option for launching GTK browser
perf tools: Fix compile error on NO_NEWT=1 build
perf hists: Initialize all of he->stat with zeroes
...
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Linus Torvalds
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cff2f741b8 |
Driver core updates for 3.8-rc1
Here's the large driver core updates for 3.8-rc1.
The biggest thing here is the various __dev* marking removals. This is
going to be a pain for the merge with different subsystem trees, I know,
but all of the patches included here have been ACKed by their various
subsystem maintainers, as they wanted them to go through here.
If this is too much of a pain, I can pull all of them out of this tree
and just send you one with the other fixes/updates and then, after
3.8-rc1 is out, do the rest of the removals to ensure we catch them all,
it's up to you. The merges should all be trivial, and Stephen has been
doing them all in linux-next for a few weeks now quite easily.
Other than the __dev* marking removals, there's nothing major here, some
firmware loading updates and other minor things in the driver core.
All of these have (much to Stephen's annoyance), been in linux-next for
a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here's the large driver core updates for 3.8-rc1.
The biggest thing here is the various __dev* marking removals. This
is going to be a pain for the merge with different subsystem trees, I
know, but all of the patches included here have been ACKed by their
various subsystem maintainers, as they wanted them to go through here.
If this is too much of a pain, I can pull all of them out of this tree
and just send you one with the other fixes/updates and then, after
3.8-rc1 is out, do the rest of the removals to ensure we catch them
all, it's up to you. The merges should all be trivial, and Stephen
has been doing them all in linux-next for a few weeks now quite
easily.
Other than the __dev* marking removals, there's nothing major here,
some firmware loading updates and other minor things in the driver
core.
All of these have (much to Stephen's annoyance), been in linux-next
for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio
update.
* tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits)
modpost.c: Stop checking __dev* section mismatches
init.h: Remove __dev* sections from the kernel
acpi: remove use of __devinit
PCI: Remove __dev* markings
PCI: Always build setup-bus when PCI is enabled
PCI: Move pci_uevent into pci-driver.c
PCI: Remove CONFIG_HOTPLUG ifdefs
unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs
sh/PCI: Remove CONFIG_HOTPLUG ifdefs
powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs
mips/PCI: Remove CONFIG_HOTPLUG ifdefs
microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs
dma: remove use of __devinit
dma: remove use of __devexit_p
firewire: remove use of __devinitdata
firewire: remove use of __devinit
leds: remove use of __devexit
leds: remove use of __devinit
leds: remove use of __devexit_p
mmc: remove use of __devexit
...
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Ingo Molnar
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cc1b39dbf9 |
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core
Pull ftrace updates from Steve Rostedt. Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Al Viro
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afa86fc426 |
flagday: don't pass regs to copy_thread()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
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cb56217362 |
unicore32: switch to generic clone(2)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |