Commit Graph

768028 Commits

Author SHA1 Message Date
Thinh Nguyen 3fe314ca8c usb: dwc3: Add a glue driver for Synopsys HAPS platform
This driver is to be used for Synopsys PCIe-base HAPS platform. Move the
the HAPS support from dwc3-pci to this driver.

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:47:51 +03:00
Jerry Zhang e610257e46 usb: gadget: f_fs: Only return delayed status when len is 0
Commit 1b9ba000 ("Allow function drivers to pause control
transfers") states that USB_GADGET_DELAYED_STATUS is only
supported if data phase is 0 bytes.

It seems that when the length is not 0 bytes, there is no
need to explicitly delay the data stage since the transfer
is not completed until the user responds. However, when the
length is 0, there is no data stage and the transfer is
finished once setup() returns, hence there is a need to
explicitly delay completion.

This manifests as the following bugs:

Prior to 946ef68ad4 ('Let setup() return
USB_GADGET_DELAYED_STATUS'), when setup is 0 bytes, ffs
would require user to queue a 0 byte request in order to
clear setup state. However, that 0 byte request was actually
not needed and would hang and cause errors in other setup
requests.

After the above commit, 0 byte setups work since the gadget
now accepts empty queues to ep0 to clear the delay, but all
other setups hang.

Fixes: 946ef68ad4 ("Let setup() return USB_GADGET_DELAYED_STATUS")
Signed-off-by: Jerry Zhang <zhangjerry@google.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:44:24 +03:00
Kieran Bingham d7af78b924 usb: gadget: uvc: Expose configuration name through video node
When utilising multiple instantiations of a UVC gadget on a composite
device, there is no clear method to link a particular configuration to
its respective video node.

Provide a means for identifying the correct video node by exposing the
name of the function configuration through sysfs.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:43:18 +03:00
Laurent Pinchart c728effd56 usb: gadget: uvc: configfs: Move function to avoid forward declaration
The to_f_uvc_opts() function is forward-declared without needing to, as
its definition can simply be moved up in the file. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:40:34 +03:00
Gevorg Sahakyan 0f548098af usb: dwc2: Move dwc2_readl/writel functions after hsotg structure
Moved dwc2_readl/writel functions after hsotg declaration for
adding hsotg structure to dwc2_readl/writel function prototypes.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Gevorg Sahakyan <sahakyan@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:36:48 +03:00
Colin Ian King 8c45fbcd1f usb: gadget: tcm: fix spelling mistake: "Manufactor" -> "Manufacturer"
Trivial fix to spelling mistake in usbg_us_strings array

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:35:29 +03:00
Laurent Pinchart 20970d823a usb: gadget: uvc: Move trace parameter to function module
The trace module parameter controls output of debugging messages in the
UVC function driver. Move it from the webcam module to the UVC function
module where it belongs. This allows ConfigFS-based UVC gadgets to
control tracing.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:33:48 +03:00
Laurent Pinchart 284eb1663b usb: gadget: uvc: Minimize #include in headers
In order to speed up compilation, only include the headers that are
strictly required within other headers. To that end, use forward
structure declaration and move #include statements to .c file as
appropriate.

While at it, sort headers alphabetically, and remove unneeded __KERNEL__
guards.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:33:44 +03:00
Laurent Pinchart d396e47fb5 usb: gadget: uvc: Move userspace API definition to public header
The UVC gadget userspace API (V4L2 events and custom ioctls) is defined
in a header internal to the kernel. Move it to a new public header to
make it accessible to userspace.

The UVC_INTF_CONTROL and UVC_INTF_STREAMING macros are not used, so
remove them in the process.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-26 13:33:39 +03:00
Linus Torvalds d72e90f33a Linux 4.18-rc6 2018-07-22 14:12:20 -07:00
Linus Torvalds 7441308421 NVMe fixes for 4.18-rc6:
- fix a regression in 4.18 that causes a memory leak on probe failure
    (Keith Bush)
  - fix a deadlock in the passthrough ioctl code (Scott Bauer)
  - don't enable AENs if not supported (Weiping Zhang)
  - fix an old regression in metadata handling in the passthrough ioctl
    code (Roland Dreier)
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Merge tag 'nvme-for-4.18' of git://git.infradead.org/nvme

Pull NVMe fixes from Christoph Hellwig:

 - fix a regression in 4.18 that causes a memory leak on probe failure
   (Keith Bush)

 - fix a deadlock in the passthrough ioctl code (Scott Bauer)

 - don't enable AENs if not supported (Weiping Zhang)

 - fix an old regression in metadata handling in the passthrough ioctl
   code (Roland Dreier)

* tag 'nvme-for-4.18' of git://git.infradead.org/nvme:
  nvme: fix handling of metadata_len for NVME_IOCTL_IO_CMD
  nvme: don't enable AEN if not supported
  nvme: ensure forward progress during Admin passthru
  nvme-pci: fix memory leak on probe failure
2018-07-22 13:21:45 -07:00
Linus Torvalds 165ea0d1c2 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "Fix several places that screw up cleanups after failures halfway
  through opening a file (one open-coding filp_clone_open() and getting
  it wrong, two misusing alloc_file()). That part is -stable fodder from
  the 'work.open' branch.

  And Christoph's regression fix for uapi breakage in aio series;
  include/uapi/linux/aio_abi.h shouldn't be pulling in the kernel
  definition of sigset_t, the reason for doing so in the first place had
  been bogus - there's no need to expose struct __aio_sigset in
  aio_abi.h at all"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  aio: don't expose __aio_sigset in uapi
  ocxlflash_getfile(): fix double-iput() on alloc_file() failures
  cxl_getfile(): fix double-iput() on alloc_file() failures
  drm_mode_create_lease_ioctl(): fix open-coded filp_clone_open()
2018-07-22 12:04:51 -07:00
Al Viro f88a333b44 alpha: fix osf_wait4() breakage
kernel_wait4() expects a userland address for status - it's only
rusage that goes as a kernel one (and needs a copyout afterwards)

[ Also, fix the prototype of kernel_wait4() to have that __user
  annotation   - Linus ]

Fixes: 92ebce5ac5 ("osf_wait4: switch to kernel_wait4()")
Cc: stable@kernel.org # v4.13+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-22 11:51:30 -07:00
Linus Torvalds 45ae4df922 ARM: SoC fixes for 4.18-rc
- Fix interrupt type on ethernet switch for i.MX-based RDU2
  - GPC on i.MX exposed too large a register window which resulted in
    userspace being able to crash the machine.
  - Fixup of bad merge resolution moving GPIO DT nodes under pinctrl
    on droid4.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:

 - Fix interrupt type on ethernet switch for i.MX-based RDU2

 - GPC on i.MX exposed too large a register window which resulted in
   userspace being able to crash the machine.

 - Fixup of bad merge resolution moving GPIO DT nodes under pinctrl on
   droid4.

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch
  soc: imx: gpc: restrict register range for regmap access
  ARM: dts: omap4-droid4: fix dts w.r.t. pwm
2018-07-21 17:27:42 -07:00
Linus Torvalds ef81e63e17 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
 "A single fix for a MCE-polling regression, which prevented the
  disabling of polling"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/MCE: Remove min interval polling limitation
2018-07-21 17:25:49 -07:00
Linus Torvalds 43227e098c Merge branch 'x86-pti-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti fixes from Ingo Molnar:
 "An APM fix, and a BTS hardware-tracing fix related to PTI changes"

* 'x86-pti-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/apm: Don't access __preempt_count with zeroed fs
  x86/events/intel/ds: Fix bts_interrupt_threshold alignment
2018-07-21 17:23:58 -07:00
Linus Torvalds 48b1db7c7a Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Two fixes: a stop-machine preemption fix and a SCHED_DEADLINE fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/deadline: Fix switched_from_dl() warning
  stop_machine: Disable preemption when waking two stopper threads
2018-07-21 17:21:34 -07:00
Linus Torvalds ea75a2c715 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core kernel fixes from Ingo Molnar:
 "This is mostly the copy_to_user_mcsafe() related fixes from Dan
  Williams, and an ORC fix for Clang"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm/memcpy_mcsafe: Fix copy_to_user_mcsafe() exception handling
  lib/iov_iter: Fix pipe handling in _copy_to_iter_mcsafe()
  lib/iov_iter: Document _copy_to_iter_flushcache()
  lib/iov_iter: Document _copy_to_iter_mcsafe()
  objtool: Use '.strtab' if '.shstrtab' doesn't exist, to support ORC tables on Clang
2018-07-21 16:52:08 -07:00
Linus Torvalds ffb48e7924 powerpc fixes for 4.18 #4
Two regression fixes, one for xmon disassembly formatting and the other to fix
 the E500 build.
 
 Two commits to fix a potential security issue in the VFIO code under obscure
 circumstances.
 
 And finally a fix to the Power9 idle code to restore SPRG3, which is user
 visible and used for sched_getcpu().
 
 Thanks to:
   Alexey Kardashevskiy, David Gibson. Gautham R. Shenoy, James Clarke.
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Merge tag 'powerpc-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Two regression fixes, one for xmon disassembly formatting and the
  other to fix the E500 build.

  Two commits to fix a potential security issue in the VFIO code under
  obscure circumstances.

  And finally a fix to the Power9 idle code to restore SPRG3, which is
  user visible and used for sched_getcpu().

  Thanks to: Alexey Kardashevskiy, David Gibson. Gautham R. Shenoy,
  James Clarke"

* tag 'powerpc-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: Fix save/restore of SPRG3 on entry/exit from stop (idle)
  powerpc/Makefile: Assemble with -me500 when building for E500
  KVM: PPC: Check if IOMMU page is contained in the pinned physical page
  vfio/spapr: Use IOMMU pageshift rather than pagesize
  powerpc/xmon: Fix disassembly since printf changes
2018-07-21 16:46:53 -07:00
Linus Torvalds 55b636b419 for-4.18-rc5-tag
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Merge tag 'for-4.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fix from David Sterba:
 "A fix of a corruption regarding fsync and clone, under some very
  specific conditions explained in the patch.

  The fix is marked for stable 3.16+ so I'd like to get it merged now
  given the impact"

* tag 'for-4.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix file data corruption after cloning a range and fsync
2018-07-21 16:42:03 -07:00
Linus Torvalds 490fc05386 mm: make vm_area_alloc() initialize core fields
Like vm_area_dup(), it initializes the anon_vma_chain head, and the
basic mm pointer.

The rest of the fields end up being different for different users,
although the plan is to also initialize the 'vm_ops' field to a dummy
entry.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 15:24:03 -07:00
Linus Torvalds 95faf6992d mm: make vm_area_dup() actually copy the old vma data
.. and re-initialize th eanon_vma_chain head.

This removes some boiler-plate from the users, and also makes it clear
why it didn't need use the 'zalloc()' version.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 14:48:45 -07:00
Linus Torvalds 3928d4f5ee mm: use helper functions for allocating and freeing vm_area structs
The vm_area_struct is one of the most fundamental memory management
objects, but the management of it is entirely open-coded evertwhere,
ranging from allocation and freeing (using kmem_cache_[z]alloc and
kmem_cache_free) to initializing all the fields.

We want to unify this in order to end up having some unified
initialization of the vmas, and the first step to this is to at least
have basic allocation functions.

Right now those functions are literally just wrappers around the
kmem_cache_*() calls.  This is a purely mechanical conversion:

    # new vma:
    kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL) -> vm_area_alloc()

    # copy old vma
    kmem_cache_alloc(vm_area_cachep, GFP_KERNEL) -> vm_area_dup(old)

    # free vma
    kmem_cache_free(vm_area_cachep, vma) -> vm_area_free(vma)

to the point where the old vma passed in to the vm_area_dup() function
isn't even used yet (because I've left all the old manual initialization
alone).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 13:48:51 -07:00
Linus Torvalds 191a3afa98 Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
 "5 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: memcg: fix use after free in mem_cgroup_iter()
  mm/huge_memory.c: fix data loss when splitting a file pmd
  fat: fix memory allocation failure handling of match_strdup()
  MAINTAINERS: Peter has moved
  mm/memblock: add missing include <linux/bootmem.h>
2018-07-21 13:14:17 -07:00
Jing Xia 9f15bde671 mm: memcg: fix use after free in mem_cgroup_iter()
It was reported that a kernel crash happened in mem_cgroup_iter(), which
can be triggered if the legacy cgroup-v1 non-hierarchical mode is used.

Unable to handle kernel paging request at virtual address 6b6b6b6b6b6b8f
......
Call trace:
  mem_cgroup_iter+0x2e0/0x6d4
  shrink_zone+0x8c/0x324
  balance_pgdat+0x450/0x640
  kswapd+0x130/0x4b8
  kthread+0xe8/0xfc
  ret_from_fork+0x10/0x20

  mem_cgroup_iter():
      ......
      if (css_tryget(css))    <-- crash here
	    break;
      ......

The crashing reason is that mem_cgroup_iter() uses the memcg object whose
pointer is stored in iter->position, which has been freed before and
filled with POISON_FREE(0x6b).

And the root cause of the use-after-free issue is that
invalidate_reclaim_iterators() fails to reset the value of iter->position
to NULL when the css of the memcg is released in non- hierarchical mode.

Link: http://lkml.kernel.org/r/1531994807-25639-1-git-send-email-jing.xia@unisoc.com
Fixes: 6df38689e0 ("mm: memcontrol: fix possible memcg leak due to interrupted reclaim")
Signed-off-by: Jing Xia <jing.xia.mail@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: <chunyan.zhang@unisoc.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 12:50:46 -07:00
Hugh Dickins e1f1b1572e mm/huge_memory.c: fix data loss when splitting a file pmd
__split_huge_pmd_locked() must check if the cleared huge pmd was dirty,
and propagate that to PageDirty: otherwise, data may be lost when a huge
tmpfs page is modified then split then reclaimed.

How has this taken so long to be noticed?  Because there was no problem
when the huge page is written by a write system call (shmem_write_end()
calls set_page_dirty()), nor when the page is allocated for a write fault
(fault_dirty_shared_page() calls set_page_dirty()); but when allocated for
a read fault (which MAP_POPULATE simulates), no set_page_dirty().

Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1807111741430.1106@eggly.anvils
Fixes: d21b9e57c7 ("thp: handle file pages in split_huge_pmd()")
Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Ashwin Chaugule <ashwinch@google.com>
Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: <stable@vger.kernel.org>	[4.8+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 12:50:46 -07:00
OGAWA Hirofumi 35033ab988 fat: fix memory allocation failure handling of match_strdup()
In parse_options(), if match_strdup() failed, parse_options() leaves
opts->iocharset in unexpected state (i.e.  still pointing the freed
string).  And this can be the cause of double free.

To fix, this initialize opts->iocharset always when freeing.

Link: http://lkml.kernel.org/r/8736wp9dzc.fsf@mail.parknet.co.jp
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: syzbot+90b8e10515ae88228a92@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 12:50:46 -07:00
Peter Senna Tschudin 5a6964944c MAINTAINERS: Peter has moved
Update my E-mail address in the MAINTAINERS file.

Link: http://lkml.kernel.org/r/20180710144702.1308-1-peter.senna@gmail.com
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 12:50:46 -07:00
Mathieu Malaterre 1937367205 mm/memblock: add missing include <linux/bootmem.h>
Commit 26f09e9b3a ("mm/memblock: add memblock memory allocation apis")
introduced two new function definitions:

  memblock_virt_alloc_try_nid_nopanic()
  memblock_virt_alloc_try_nid()

and commit ea1f5f3712 ("mm: define memblock_virt_alloc_try_nid_raw")
introduced the following function definition:

  memblock_virt_alloc_try_nid_raw()

This commit adds an include of header file <linux/bootmem.h> to provide
the missing function prototypes.  This silences the following gcc warning
(W=1):

  mm/memblock.c:1334:15: warning: no previous prototype for `memblock_virt_alloc_try_nid_raw' [-Wmissing-prototypes]
  mm/memblock.c:1371:15: warning: no previous prototype for `memblock_virt_alloc_try_nid_nopanic' [-Wmissing-prototypes]
  mm/memblock.c:1407:15: warning: no previous prototype for `memblock_virt_alloc_try_nid' [-Wmissing-prototypes]

Also adds #ifdef blockers to prevent compilation failure on mips/ia64
where CONFIG_NO_BOOTMEM=n as could be seen in commit commit 6cc22dc08a
("revert "mm/memblock: add missing include <linux/bootmem.h>"").

Because Makefile already does:

  obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o

The #ifdef has been simplified from:

  #if defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM)

to simply:

  #if defined(CONFIG_NO_BOOTMEM)

Link: http://lkml.kernel.org/r/20180626184422.24974-1-malat@debian.org
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Suggested-by: Tony Luck <tony.luck@intel.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-21 12:50:46 -07:00
Linus Torvalds 48e5aee81f VFIO fixes for v4.18
- Harden potential Spectre v1 issue (Gustavo A. R. Silva)
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Merge tag 'vfio-v4.18-rc6' of git://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:
 "Harden potential Spectre v1 issue (Gustavo A. R. Silva)"

* tag 'vfio-v4.18-rc6' of git://github.com/awilliam/linux-vfio:
  vfio/pci: Fix potential Spectre v1
2018-07-20 14:27:02 -07:00
Linus Torvalds b4460a9586 - Fix DM writecache target to allow an optional offset to the start of
the data and metadata area.  This allows userspace tools (e.g. LVM2)
   to place a header and metadata at the front of the writecache device
   for its use.
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Merge tag 'for-4.18/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fix from Mike Snitzer:
 "Fix DM writecache target to allow an optional offset to the start of
  the data and metadata area.

  This allows userspace tools (e.g. LVM2) to place a header and metadata
  at the front of the writecache device for its use"

* tag 'for-4.18/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm writecache: support optional offset for start of device
2018-07-20 14:24:17 -07:00
Olof Johansson 5858610f0d i.MX fixes for 4.18, round 4:
- A fix for i.MX6 RDU2 board on the wrong IRQ type of Marvell switch,
    which might result in a race condition in the interrupt handler and
    cause the OS to miss all future events.
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Merge tag 'imx-fixes-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.18, round 4:
 - A fix for i.MX6 RDU2 board on the wrong IRQ type of Marvell switch,
   which might result in a race condition in the interrupt handler and
   cause the OS to miss all future events.

* tag 'imx-fixes-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-20 14:22:11 -07:00
Linus Torvalds 18cadf9f37 SCSI fixes on 20180720
A set of 8 obvious fixes.  Three (2 qla2xxx and the cxlflash oopses)
 are regressions, two from 4.17 and one from the merge window.  The
 hpsa change is user visible, but it fixes an error users have
 complained about.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A set of 8 obvious fixes.

  Three (2 qla2xxx and the cxlflash oopses) are regressions, two from
  4.17 and one from the merge window. The hpsa change is user visible,
  but it fixes an error users have complained about"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: cxlflash: fix assignment of the backend operations
  scsi: qedi: Send driver state to MFW
  scsi: qedf: Send the driver state to MFW
  scsi: hpsa: correct enclosure sas address
  scsi: sd_zbc: Fix variable type and bogus comment
  scsi: qla2xxx: Fix NULL pointer dereference for fcport search
  scsi: qla2xxx: Fix kernel crash due to late workqueue allocation
  scsi: qla2xxx: Fix inconsistent DMA mem alloc/free
2018-07-20 11:47:08 -07:00
Linus Torvalds 47736af324 IOMMU Fixes for Linux v4.18-rc5:
Only one revert:
 
 	* Revert an Intel VT-d patch that caused issues with the i915 GPU
 	  driver
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Merge tag 'iommu-fixes-v4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fix from Joerg Roedel:
 "Only one revert, for an an Intel VT-d patch that caused issues with
  the i915 GPU driver"

* tag 'iommu-fixes-v4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
2018-07-20 11:43:21 -07:00
Linus Torvalds de87dcdedc platform-drivers-x86 for v4.18-2
The Dell laptop ACPI video brightness control is now back
 after fixing a regression brought by SMM refactoring.
 
 The following is an automated git shortlog grouped by driver:
 
 dell-laptop:
  -  Fix backlight detection
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Merge tag 'platform-drivers-x86-v4.18-2' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixes from Andy Shevchenko:
 "The Dell laptop ACPI video brightness control is now back after fixing
  a regression brought by SMM refactoring"

* tag 'platform-drivers-x86-v4.18-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: dell-laptop: Fix backlight detection
2018-07-20 11:37:30 -07:00
Linus Torvalds 2a0ea7df1f ARC fixes for 4.18-rc6
- Fix CONFIG_SWAP [Alexey]
 
  - Robistify cmpxchg emulation for systems w/o atomics [Alexey / PeterZ]
 
  - Allow mprotext(PROT_EXEC) for stack mappings [Vineet]
 
  - HSDK platform enable PCIe, APG GPIO [Gustavo]
 
  - miscll other fixes, config updates etc
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Merge tag 'arc-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "ARC is back after radio silence in 4.17:

   - Fix CONFIG_SWAP [Alexey]

   - Robustify cmpxchg emulation for systems w/o atomics [Alexey /
     PeterZ]

   - Allow mprotext(PROT_EXEC) for stack mappings [Vineet]

   - HSDK platform enable PCIe, APG GPIO [Gustavo]

   - miscll other fixes, config updates etc"

* tag 'arc-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARCv2: [plat-hsdk]: Save accl reg pair by default
  ARC: mm: allow mprotect to make stack mappings executable
  ARC: Fix CONFIG_SWAP
  ARC: [arcompact] entry.S: minor code movement
  ARC: configs: Remove CONFIG_INITRAMFS_SOURCE from defconfigs
  ARC: configs: remove no longer needed CONFIG_DEVPTS_MULTIPLE_INSTANCES
  ARC: Improve cmpxchg syscall implementation
  ARC: [plat-hsdk]: Configure APB GPIO controller on ARC HSDK platform
  ARC: [plat-hsdk] Add PCIe support
  ARC: Enable machine_desc->init_per_cpu for !CONFIG_SMP
  ARC: Explicitly add -mmedium-calls to CFLAGS
2018-07-20 11:33:22 -07:00
Linus Torvalds 293bccc5b2 nds32 patches for 4.18
Here is the nds32 patch set based on 4.18-rc1.
 Contained in here are the bug fixes and building error fixes for nds32.
 
 These are the LTP20170427 testing results.
 
 Total Tests: 1902
 Total Skipped Tests: 593
 Total Failures: 418
 Kernel Version: 4.18.0-rc1-00006-g987553894f0c-dirty
 Machine Architecture: nds32
 
 Signed-off-by: Greentime Hu <greentime@andestech.com>
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Merge tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

Pull nds32 updates from Greentime Hu:
 "Bug fixes and build ixes for nds32"

* tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  nds32: fix build error "relocation truncated to fit: R_NDS32_25_PCREL_RELA" when make allyesconfig
  nds32: To simplify the implementation of update_mmu_cache()
  nds32: Fix the dts pointer is not passed correctly issue.
  nds32: To implement these icache invalidation APIs since nds32 cores don't snoop data cache. This issue is found by Guo Ren. Based on the Documentation/core-api/cachetlb.rst and it says:
  nds32: Fix build error caused by configuration flag rename
  nds32: define __NDS32_E[BL]__ for sparse
2018-07-20 11:18:33 -07:00
Linus Torvalds bfa54a3a00 Power management fix for 4.18-rc6
Fix a relatively old initialization issue in intel_pstate causing
 the pcc-cpufreq driver to be used instead of it on some HP Proliant
 systems, which turned into a functional regression during the 4.17
 cycle, because pcc-cpufreq is a scalability disaster and that was
 amplified by the idle loop rework done at that time (Rafael Wysocki).
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Merge tag 'pm-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a relatively old initialization issue in intel_pstate causing the
  pcc-cpufreq driver to be used instead of it on some HP Proliant
  systems.

  This turned into a functional regression during the 4.17 cycle,
  because pcc-cpufreq is a scalability disaster and that was amplified
  by the idle loop rework done at that time (Rafael Wysocki).

* tag 'pm-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Register when ACPI PCCH is present
2018-07-20 11:12:27 -07:00
Linus Torvalds 73894397e7 ACPI fix for 4.18-rc6
Extend the recently added suspend-to-idle quirk for Thinkpad X1
 Carbon 6th to other systems from that familiy which turned out
 to need it too (Robin Johnson).
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Merge tag 'acpi-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Extend the recently added suspend-to-idle quirk for Thinkpad X1 Carbon
  6th to other systems from that familiy which turned out to need it too
  (Robin Johnson)"

* tag 'acpi-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
2018-07-20 11:09:10 -07:00
Roland Dreier 9b38276813 nvme: fix handling of metadata_len for NVME_IOCTL_IO_CMD
The old code in nvme_user_cmd() passed the userspace virtual address
from nvme_passthru_cmd.metadata as the length of the metadata buffer
as well as the address to nvme_submit_user_cmd().

Fixes: 63263d60 ("nvme: Use metadata for passthrough commands")
Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-07-20 07:43:59 -07:00
Damien Thébault 2502e5a025 platform/x86: dell-laptop: Fix backlight detection
Fix return code check for "max brightness" ACPI call.

The Dell laptop ACPI video brightness control is not present on dell
laptops anymore, but was present in older kernel versions.

The code that checks the return value is incorrect since the SMM
refactoring.

The old code was:
  if (buffer->output[0] == 0)

Which was changed to:
  ret = dell_send_request(...)
  if (ret)

However, dell_send_request() will return 0 if buffer->output[0] == 0,
so we must change the check to:
  if (ret == 0)

This issue was found on a Dell M4800 laptop, and the fix tested on it
as well.

Fixes: 549b4930f0 ("dell-smbios: Introduce dispatcher for SMM calls")
Signed-off-by: Damien Thébault <damien@dtbo.net>
Tested-by: Damien Thébault <damien@dtbo.net>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-07-20 15:29:59 +03:00
Lu Baolu 2db1581e1f Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
This reverts commit ab96746aaa.

The commit ab96746aaa ("iommu/vt-d: Clean up pasid quirk for
pre-production devices") triggers ECS mode on some platforms
which have broken ECS support. As the result, graphic device
will be inoperable on boot.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107017

Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2018-07-20 13:55:56 +02:00
Linus Torvalds 28c20cc73b nouveau and amdgpu fixes
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Merge tag 'drm-fixes-2018-07-20' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Just two sets of driver fixes this week to follow up on the set from
  earlier in the week and hopefully get me realigned schedule wise.

  amdgpu:
   - ACP fix for boards with multiple I2S instances
   - DP fix for CZ, vega
   - hybrid laptop fixes
   - Resume regression fix

  nouveau:
   - large memory systems and Pascal fix
   - MST race fixes
   - runtime PM fix"

* tag 'drm-fixes-2018-07-20' of git://anongit.freedesktop.org/drm/drm:
  drm/nouveau/fb/gp100-: disable address remapper
  drm/amd/amdgpu: creating two I2S instances for stoney/cz (v2)
  drm/amdgpu: add another ATPX quirk for TOPAZ
  drm/amd/display: Fix DP HBR2 Eye Diagram Pattern on Carrizo
  drm/amdgpu: Make sure IB tests flushed after IP resume
  drm/nouveau: Set DRIVER_ATOMIC cap earlier to fix debugfs
  drm/nouveau: Remove bogus crtc check in pmops_runtime_idle
  drm/nouveau/drm/nouveau: Fix runtime PM leak in nv50_disp_atomic_commit()
  drm/nouveau: Avoid looping through fake MST connectors
  drm/nouveau: Use drm_connector_list_iter_* for iterating connectors
  drm/nouveau/gem: off by one bugs in nouveau_gem_pushbuf_reloc_apply()
  drm/nouveau/kms/nv50-: ensure window updates are submitted when flushing mst disables
2018-07-19 20:17:47 -07:00
Uwe Kleine-König e01a06c808 ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch
The Marvell switches report their interrupts in a level sensitive way.
When using edge sensitive detection a race condition in the interrupt
handler of the swich might result in the OS to miss all future events
which might make the switch non-functional.

The problem is that both mv88e6xxx_g2_irq_thread_fn() and
mv88e6xxx_g1_irq_thread_work() sample the irq cause register
(MV88E6XXX_G2_INT_SRC and MV88E6XXX_G1_STS respectively) once and then
handle the observed sources. If after sampling but before all observed
irq sources are handled a new irq source gets active this is not noticed
by the handler which returns unsuspecting, but the interrupt line stays
active which prevents the edge detector to kick in.

All device trees but imx6qdl-zii-rdu2 get this right (most of them by
not specifying an interrupt parent). So fix imx6qdl-zii-rdu2
accordingly.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: f64992d1a9 ("ARM: dts: imx6: RDU2: Add Switch interrupts")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-07-20 10:50:44 +08:00
Dave Airlie 02e546eacc Merge branch 'linux-4.18' of git://github.com/skeggsb/linux into drm-fixes
- fix problem with pascal and large memory systems
- fix a bunch of MST problems
- fix a runtime PM interaction with MST

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv79O8deSts2fxJ_oS6=q8yA+OgwBSEpp5R=BQBmWa+oyg@mail.gmail.com
2018-07-20 10:27:53 +10:00
Dave Airlie b83ce39b92 Merge branch 'drm-fixes-4.18' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 4.18.  The ACP patch is a bit bigger than I would like
at this point, but it should have gone in long ago, it just fell
through the cracks.  The others are pretty small and straight-forward.
- ACP fix for boards with 2 I2S instances
- DP fix for CZ, vega
- Fix for a hybrid graphics laptop
- Fix a resume regression

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180718162603.2747-1-alexander.deucher@amd.com
2018-07-20 10:23:44 +10:00
Olof Johansson 8b369c0073 i.MX fixes for 4.18, round 3:
- Restrict GPC driver on register range that is accessible by regmap,
    so that we can avoid user space from triggering imprecise external
    abort exception.
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Merge tag 'imx-fixes-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.18, round 3:
 - Restrict GPC driver on register range that is accessible by regmap,
   so that we can avoid user space from triggering imprecise external
   abort exception.

* tag 'imx-fixes-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpc: restrict register range for regmap access

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-19 15:09:59 -07:00
Olof Johansson 1f9f163500 One omap dts mismerge fix
The dts patch for droid4 PWM vibrator has added gpio6 entries to the wrong
 node. Let's fix it with a note that there seems to be also other GPIO PWM
 issues to fix still to get the PWM vibrator working. So this can wait for
 v4.19 merge cycle if necessary.
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Merge tag 'omap-for-v4.18/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

One omap dts mismerge fix

The dts patch for droid4 PWM vibrator has added gpio6 entries to the wrong
node. Let's fix it with a note that there seems to be also other GPIO PWM
issues to fix still to get the PWM vibrator working. So this can wait for
v4.19 merge cycle if necessary.

* tag 'omap-for-v4.18/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap4-droid4: fix dts w.r.t. pwm

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-19 15:07:12 -07:00
Linus Torvalds fb7d1bcf16 pci-v4.18-fixes-3
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Merge tag 'pci-v4.18-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Fix crashes that happen when PHY drivers are left disabled in the V3
   Semiconductor, MediaTek, Faraday, Aardvark, DesignWare, Versatile,
   and X-Gene host controller drivers (Sergei Shtylyov)

 - Fix a NULL pointer dereference in the endpoint library configfs
   support (Kishon Vijay Abraham I)

 - Fix a race condition in Hyper-V IRQ handling (Dexuan Cui)

* tag 'pci-v4.18-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: v3-semi: Fix I/O space page leak
  PCI: mediatek: Fix I/O space page leak
  PCI: faraday: Fix I/O space page leak
  PCI: aardvark: Fix I/O space page leak
  PCI: designware: Fix I/O space page leak
  PCI: versatile: Fix I/O space page leak
  PCI: xgene: Fix I/O space page leak
  PCI: OF: Fix I/O space page leak
  PCI: endpoint: Fix NULL pointer dereference error when CONFIGFS is disabled
  PCI: hv: Disable/enable IRQs rather than BH in hv_compose_msi_msg()
2018-07-19 11:54:04 -07:00
Vineet Gupta af1fc5baa7 ARCv2: [plat-hsdk]: Save accl reg pair by default
This manifsted as strace segfaulting on HSDK because gcc was targetting
the accumulator registers as GPRs, which kernek was not saving/restoring
by default.

Cc: stable@vger.kernel.org   #4.14+
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2018-07-19 10:36:45 -07:00