* KDB: improved searching
* No longer enter debug core on panic if panic timeout is set
KGDB/KDB regressions / cleanups
* fix pdf doc build errors
* prevent junk characters on kdb console from printk levels
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Merge tag 'for_linux-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb
Pull kgdb/kdb updates from Jason Wessel:
"KGDB/KDB New:
- KDB: improved searching
- No longer enter debug core on panic if panic timeout is set
KGDB/KDB regressions / cleanups
- fix pdf doc build errors
- prevent junk characters on kdb console from printk levels"
* tag 'for_linux-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
kgdb, docs: Fix <para> pdfdocs build errors
debug: prevent entering debug mode on panic/exception.
kdb: Const qualifier for kdb_getstr's prompt argument
kdb: Provide forward search at more prompt
kdb: Fix a prompt management bug when using | grep
kdb: Remove stack dump when entering kgdb due to NMI
kdb: Avoid printing KERN_ levels to consoles
kdb: Fix off by one error in kdb_cpu()
kdb: fix incorrect counts in KDB summary command output
Commit e9de688dac ("irqchip: mips-gic: Support local interrupts")
updated several platforms. This is a copy paste error.
Signed-off-by: Niklas Cassel <niklass@axis.com>
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9245/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
In commit c441d4a54c ("MIPS: mm: Only build one microassembler that
is suitable"), the Makefile at arch/mips/mm was rewritten to only
build the "right" microassembler file, depending on whether
CONFIG_CPU_MICROMIPS is set or not.
In the files, however, there are still preprocessor definitions
depending on CONFIG_CPU_MICROMIPS. The #ifdef around them can now
never evaluate to true, so let's remove them altogether.
This inconsistency was found using the undertaker-checkpatch tool.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Reviewed-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Valentin Rothberg <valentinrothberg@gmail.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Patchwork: https://patchwork.linux-mips.org/patch/9267/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
In for-next for a while and I've done some extensive beating on the
driver since I have it working in qemu and can do creatively cruel
things to it
Thanks,
-corey.
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Merge tag 'for-linus-3.20-1' of git://git.code.sf.net/p/openipmi/linux-ipmi
Pull IPMI driver updates from Corey Minyard:
"Some minor fixes and cleanups, nothing big.
In for-next for a while and I've done some extensive beating on the
driver since I have it working in qemu and can do creatively cruel
things to it"
* tag 'for-linus-3.20-1' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: Fix a memory ordering issue
ipmi: Remove uses of return value of seq_printf
ipmi: Use is_visible callback for conditional sysfs entries
ipmi: Free ipmi_recv_msg messages from the linked list on close
ipmi: avoid gcc warning
ipmi: Update timespec usage to timespec64
ipmi: Cleanup DEBUG_TIMING ifdef usage
drivers:char:ipmi: Remove unneeded FIXME comment in the file,ipmi_si_intf.c
char: ipmi: Remove obsolete cleanup for clientdata
ipmi: Remove a FIXME for slab conversion
Upstream checkpatch now requires this.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
For, !HAVE_CLK the clk API returns a NULL cookie. Rework the
initialization code to handle that. If clk_get_rate() delivers 0, we use
the fallback mechanisms. The patch is pretty easy when ignoring white
space issues (git diff -b).
Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
- Use of_irq_init() to initialize interrupt controllers
- Get rid of some unlikely()
- Add CIB to support SATA and other interrupts
- Add support for CIU SUM2 interrupt sources
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Leonid Rosenboim <lrosenboim@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Signed-off-by: Peter Swain <peter.swain@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8947/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The acknowledge bits don't exist for level triggered irqs, so setting
them causes the simulator to terminate.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Leonid Rosenboim <lrosenboim@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8946/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
CN38XX pass 1 required icache prefetching to be turned off. This chip never
reached production and is long dead. Other processor specific icache settings
are done by the bootloader. Remove these bits from the kernel.
Signed-off-by: Chad Reese <kreese@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/8944/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Also update union octeon_cvmemctl with new OCTEON II fields.
[aleksey.makarov@auriga.com: use __BITFIELD_FIELD]
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8940/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The wide multiplier is twice as wide, so we need to save twice as much
state. Detect the multiplier type (CPU type) at start up and install
model specific handlers.
[aleksey.makarov@auriga.com:
conflict resolution,
support for old compilers]
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Leonid Rosenboim <lrosenboim@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8933/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The exynos_tmu_data() function should on entrance test not only for valid
data pointer, but also for data->tmu_read one.
It is important, since afterwards it is dereferenced to get temperature code.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Allow more compression algorithms as well as uncompressed uImage.bin
to be generated. An uncompressed image might be useful to rule out
problems in the decompression code in the bootloader or even speed
up the boot process at the expense of a bigger uImage file.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9271/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
There are currently no gio device drivers that implement suspend/resume
and this patch removes the bus specific legacy suspend and resume callbacks.
This will allow us to eventually remove struct bus_type legacy suspend and
resume support altogether.
gio device drivers wanting to implement suspend and resume can use dev PM
ops which will work out of the box without further modifications necessary.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8920/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The current code uses bits 0-6 of the sys_cpupll register to calculate
core clock speed. However this is only valid on Au1300, on all earlier
models the hardware only uses bits 0-5 to generate core clock.
This fixes clock calculation on the MTX1 (Au1500), where bit 6 of cpupll
is set as well, which ultimately lead the code to calculate a bogus cpu
core clock and also uart base clock down the line.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Reported-by: John Crispin <blogic@openwrt.org>
Tested-by: Bruno Randolf <br1@einfach.org>
Cc: stable@vger.kernel.org [v3.17+]
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9279/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
set_cpuspec() has been dropped with commit 074cf65670
("MIPS: Alchemy: remove cpu_table.") in late 2008.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9150/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This was lost during the rewrite of clock framework support.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9149/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The Au1000 and Au1500 calculate the LRCLK a bit differently than
newer models: a single bit in MEM_STCFG0 selects if pclk is divided
by 4 or 5.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9148/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
There doesn't seem to be any valid reason to allocate the pages array
with the same flags as the buffer itself. Doing so can eventually lead
to the following safeguard in mm/slab.c's cache_grow() to be hit:
if (unlikely(flags & GFP_SLAB_BUG_MASK)) {
pr_emerg("gfp: %un", flags & GFP_SLAB_BUG_MASK);
BUG();
}
This happens when buffers are allocated with __GFP_DMA32 or
__GFP_HIGHMEM.
Fix this by allocating the pages array with GFP_KERNEL to follow what is
done elsewhere in this file. Using GFP_KERNEL in __iommu_alloc_buffer()
is safe because atomic allocations are handled by __iommu_alloc_atomic().
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Code that does this:
if (!(d_unhashed(tmp) && tmp->d_inode)) {
...
simple_unlink(parent->d_inode, tmp);
}
is broken because:
!(d_unhashed(tmp) && tmp->d_inode)
is equivalent to:
!d_unhashed(tmp) || !tmp->d_inode
so it is possible to get into simple_unlink() with tmp->d_inode == NULL.
simple_unlink(), however, assumes tmp->d_inode cannot be NULL.
I think that what was meant is this:
!d_unhashed(tmp) && tmp->d_inode
and that the logical-not operator or the final close-bracket was misplaced.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Bryan O'Sullivan <bos@pathscale.com>
cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
get_acl gets a reference which we must release in the error cases.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Have defined pr_fmt as below in fs/aio.c, so remove duplicate
function name in pr_debug message.
#define pr_fmt(fmt) "%s: " fmt, __func__
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Code that does this:
if (!(d_unhashed(dentry) && dentry->d_inode)) {
...
simple_unlink(parent->d_inode, dentry);
}
is broken because:
!(d_unhashed(dentry) && dentry->d_inode)
is equivalent to:
!d_unhashed(dentry) || !dentry->d_inode
so it is possible to get into simple_unlink() with dentry->d_inode == NULL.
simple_unlink(), however, assumes dentry->d_inode cannot be NULL.
I think that what was meant is this:
!d_unhashed(dentry) && dentry->d_inode
and that the logical-not operator or the final close-bracket was misplaced.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Commit f47233c2d3 ("x86/mm/ASLR: Propagate base load address
calculation") causes PAGE_SIZE redefinition warnings for UML
subarch builds. This is caused by added includes that were
leftovers from previous patch versions are are not actually
needed (especially page_types.h inlcude in module.c). Drop
those stray includes.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1502201017240.28769@pobox.suse.cz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Only ->open() should be there (always failing, of course). We never
replace ->f_op of an already opened struct file, so there's no way
for any of those methods to be called.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We don't really need to recalculate the effective rate of a clock when a
per-user clock is removed, if the constraints of the later aren't
limiting the requested rate.
This was causing problems with clocks that never had a rate set before,
as rate_req would be zero. Though this could be considered a bug in the
implementation of those clocks, this should be checked somewhere else.
Fixes: 1c8e600440 ("clk: Add rate constraints to clocks")
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
From a locking point of view it is safe to check waiting_msg without
a lock, but there is a memory ordering issue that causes it to
possibly not be set right when viewed from another processor. We are
already claiming a lock right after that, move the check to inside
the lock to enforce the memory ordering.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
The seq_printf like functions will soon be changed to return void.
Convert these uses to check seq_has_overflowed instead.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Instead of manual calls of device_create_file() and
device_remove_file(), implement the condition in is_visible callback
for the attribute group and put these entries to the group, too.
This simplifies the code and avoids the possible races.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
This adds a loop through the elements in the linked list, recv_msgs using
list_for_entry_safe in order to free messages in this list. In addition
we are using the safe version of this marco in order to prevent use after
bugs related to deleting the element we are on currently by holding a
pointer to the next element after the current one we are on and freeing
with the function, ipmi_free_recv_msg internally in this loop.
Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
A new harmless warning has come up on ARM builds with gcc-4.9:
drivers/char/ipmi/ipmi_msghandler.c: In function 'smi_send.isra.11':
include/linux/spinlock.h:372:95: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
raw_spin_unlock_irqrestore(&lock->rlock, flags);
^
drivers/char/ipmi/ipmi_msghandler.c:1490:16: note: 'flags' was declared here
unsigned long flags;
^
This could be worked around by initializing the 'flags' variable, but it
seems better to rework the code to avoid this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 7ea0ed2b5b ("ipmi: Make the message handler easier to use for SMI interfaces")
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Linus Torvalds