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8 years agoMerge tag 'powerpc-4.7-3Michael Ellerman:' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 10 Jun 2016 19:23:49 +0000 (12:23 -0700)]
Merge tag 'powerpc-4.7-3Michael Ellerman:' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from
 - ptrace: Fix out of bounds array access warning from Khem Raj
 - pseries: Fix PCI config address for DDW from Gavin Shan
 - pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added
   from Michael Ellerman
 - of: fix autoloading due to broken modalias with no 'compatible' from
   Wolfram Sang
 - radix: Fix always false comparison against MMU_NO_CONTEXT from Aneesh
   Kumar K.V
 - hash: Compute the segment size correctly for ISA 3.0 from Aneesh
   Kumar K.V
 - nohash: Fix build break with 64K pages from Michael Ellerman

* tag 'powerpc-4.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/nohash: Fix build break with 64K pages
  powerpc/mm/hash: Compute the segment size correctly for ISA 3.0
  powerpc/mm/radix: Fix always false comparison against MMU_NO_CONTEXT
  of: fix autoloading due to broken modalias with no 'compatible'
  powerpc/pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added
  powerpc/pseries: Fix PCI config address for DDW
  powerpc/ptrace: Fix out of bounds array access warning

8 years agoMerge tag 'hwmon-for-linus-v4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 19:18:34 +0000 (12:18 -0700)]
Merge tag 'hwmon-for-linus-v4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - fix regression in fam15h_power driver

 - minor variable type fix in lm90 driver

 - document compatible statement for ina2xx driver

* tag 'hwmon-for-linus-v4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (lm90) use proper type for update_interval
  hwmon: (ina2xx) Document compatible for INA231
  hwmon: (fam15h_power) Disable preemption when reading registers

8 years agoMerge branch 'stacking-fixes' (vfs stacking fixes from Jann)
Linus Torvalds [Fri, 10 Jun 2016 19:10:02 +0000 (12:10 -0700)]
Merge branch 'stacking-fixes' (vfs stacking fixes from Jann)

Merge filesystem stacking fixes from Jann Horn.

* emailed patches from Jann Horn <jannh@google.com>:
  sched: panic on corrupted stack end
  ecryptfs: forbid opening files without mmap handler
  proc: prevent stacking filesystems on top

8 years agosched: panic on corrupted stack end
Jann Horn [Wed, 1 Jun 2016 09:55:07 +0000 (11:55 +0200)]
sched: panic on corrupted stack end

Until now, hitting this BUG_ON caused a recursive oops (because oops
handling involves do_exit(), which calls into the scheduler, which in
turn raises an oops), which caused stuff below the stack to be
overwritten until a panic happened (e.g.  via an oops in interrupt
context, caused by the overwritten CPU index in the thread_info).

Just panic directly.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoecryptfs: forbid opening files without mmap handler
Jann Horn [Wed, 1 Jun 2016 09:55:06 +0000 (11:55 +0200)]
ecryptfs: forbid opening files without mmap handler

This prevents users from triggering a stack overflow through a recursive
invocation of pagefault handling that involves mapping procfs files into
virtual memory.

Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoproc: prevent stacking filesystems on top
Jann Horn [Wed, 1 Jun 2016 09:55:05 +0000 (11:55 +0200)]
proc: prevent stacking filesystems on top

This prevents stacking filesystems (ecryptfs and overlayfs) from using
procfs as lower filesystem.  There is too much magic going on inside
procfs, and there is no good reason to stack stuff on top of procfs.

(For example, procfs does access checks in VFS open handlers, and
ecryptfs by design calls open handlers from a kernel thread that doesn't
drop privileges or so.)

Signed-off-by: Jann Horn <jannh@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 10 Jun 2016 18:57:17 +0000 (11:57 -0700)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Will Deacon:
 "A fix for an issue that Alex saw whilst swapping with hardware
  access/dirty bit support enabled in the kernel: Fix a failure to fault
  in old pages on a write when CONFIG_ARM64_HW_AFDBM is enabled"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: always take dirty state from new pte in ptep_set_access_flags

8 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 18:36:04 +0000 (11:36 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes from all around the map, plus a commit that introduces a
  new header of Intel model name symbols (unused) that will make the
  next merge window easier"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ioapic: Fix incorrect pointers in ioapic_setup_resources()
  x86/entry/traps: Don't force in_interrupt() to return true in IST handlers
  x86/cpu/AMD: Extend X86_FEATURE_TOPOEXT workaround to newer models
  x86/cpu/intel: Introduce macros for Intel family numbers
  x86, build: copy ldlinux.c32 to image.iso
  x86/msr: Use the proper trace point conditional for writes

8 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 18:24:39 +0000 (11:24 -0700)]
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 scheduler debugging fixes"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Fix 'schedstats=enable' cmdline option
  sched/debug: Fix /proc/sched_debug regression

8 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 18:15:41 +0000 (11:15 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "A handful of tooling fixes, two PMU driver fixes and a cleanup of
  redundant code that addresses a security analyzer false positive"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Remove a redundant check
  perf/x86/intel/uncore: Remove SBOX support for Broadwell server
  perf ctf: Convert invalid chars in a string before set value
  perf record: Fix crash when kptr is restricted
  perf symbols: Check kptr_restrict for root
  perf/x86/intel/rapl: Fix pmus free during cleanup

8 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 17:53:46 +0000 (10:53 -0700)]
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "Misc fixes:

   - a file-based futex fix
   - one more spin_unlock_wait() fix
   - a ww-mutex deadlock detection improvement/fix
   - and a raw_read_seqcount_latch() barrier fix"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Calculate the futex key based on a tail page for file-based futexes
  locking/qspinlock: Fix spin_unlock_wait() some more
  locking/ww_mutex: Report recursive ww_mutex locking early
  locking/seqcount: Re-fix raw_read_seqcount_latch()

8 years agoMerge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 17:47:22 +0000 (10:47 -0700)]
Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI fixes from Ingo Molnar:
 "Two fixes: a regression/crash fix, and a message output fix"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm: Fix the format of EFI debug messages
  efi: Fix for_each_efi_memory_desc_in_map() for empty memmaps

8 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 10 Jun 2016 17:37:01 +0000 (10:37 -0700)]
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fix from Ingo Molnar:
 "Addresses a false positive warning in the GPU/DRM code"

[ Technically it's not a "false positive", but it's the virtual GPU
  interface that needs the frame pointer for its own internal purposes ]

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool, drm/vmwgfx: Fix "duplicate frame pointer save" warning

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 10 Jun 2016 15:32:24 +0000 (08:32 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) nfnetlink timestamp taken from wrong skb, fix from Florian Westphal.

 2) Revert some msleep conversions in rtlwifi as these spots are in
    atomic context, from Larry Finger.

 3) Validate that NFTA_SET_TABLE attribute is actually specified when we
    call nf_tables_getset().  From Phil Turnbull.

 4) Don't do mdio_reset in stmmac driver with spinlock held as that can
    sleep, from Vincent Palatin.

 5) sk_filter() does things other than run a BPF filter, so we should
    not elide it's call just because sk->sk_filter is NULL.  Fix from
    Eric Dumazet.

 6) Fix missing backlog updates in several packet schedulers, from Cong
    Wang.

 7) bnx2x driver should allow VLAN add/remove while the interface is
    down, from Michal Schmidt.

 8) Several RDS/TCP race fixes from Sowmini Varadhan.

 9) fq_codel scheduler doesn't return correct queue length in dumps,
    from Eric Dumazet.

10) Fix TCP stats for tail loss probe and early retransmit in ipv6, from
    Yuchung Cheng.

11) Properly initialize udp_tunnel_socket_cfg in l2tp_tunnel_create(),
    from Guillaume Nault.

12) qfq scheduler leaks SKBs if a kzalloc fails, fix from Florian
    Westphal.

13) sock_fprog passed into PACKET_FANOUT_DATA needs compat handling,
    from Willem de Bruijn.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (85 commits)
  vmxnet3: segCnt can be 1 for LRO packets
  packet: compat support for sock_fprog
  stmmac: fix parameter to dwmac4_set_umac_addr()
  net/mlx5e: Fix blue flame quota logic
  net/mlx5e: Use ndo_stop explicitly at shutdown flow
  net/mlx5: E-Switch, always set mc_promisc for allmulti vports
  net/mlx5: E-Switch, Modify node guid on vf set MAC
  net/mlx5: E-Switch, Fix vport enable flow
  net/mlx5: E-Switch, Use the correct error check on returned pointers
  net/mlx5: E-Switch, Use the correct free() function
  net/mlx5: Fix E-Switch flow steering capabilities check
  net/mlx5: Fix flow steering NIC capabilities check
  net/mlx5: Fix root flow table update
  net/mlx5: Fix MLX5_CMD_OP_MAX to be defined correctly
  net/mlx5: Fix masking of reserved bits in XRCD number
  net/mlx5: Fix the size of modify QP mailbox
  mlxsw: spectrum: Don't sleep during ndo_get_phys_port_name()
  mlxsw: spectrum: Make split flow match firmware requirements
  wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel
  cfg80211: remove get/set antenna and tx power warnings
  ...

8 years agoMerge tag 'sound-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 10 Jun 2016 15:27:30 +0000 (08:27 -0700)]
Merge tag 'sound-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "We have only few, mainly HD-audio device-specific fixes.  Realtek
  codec driver got a slightly more LOC, but they are all for the new
  codec chip, and won't affect others at all"

* tag 'sound-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Add PCI ID for Kabylake
  ALSA: hda/realtek: Add T560 docking unit fixup
  ALSA: hda - Fix headset mic detection problem for Dell machine
  ALSA: uapi: Add three missing header files to Kbuild file
  ALSA: hda/realtek - Add support for new codecs ALC700/ALC701/ALC703
  ALSA: hda/realtek - ALC256 speaker noise issue

8 years agoMerge tag 'drm-fixes-for-v4.7-rc3' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 10 Jun 2016 15:21:06 +0000 (08:21 -0700)]
Merge tag 'drm-fixes-for-v4.7-rc3' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "This weeks instalment of fixes:

  amdgpu:
     Lots of memory leak and firmware leak fixes

  nouveau:
     Collection of display fixes, KASAN fixes

  vc4:
     vblank/pageflipping fixes

  fsl-dcu:
     Regmap cache fix

  omap:
     Unused variable warning fix.

  Nothing too surprising so far"

* tag 'drm-fixes-for-v4.7-rc3' of git://people.freedesktop.org/~airlied/linux: (46 commits)
  drm/amdgpu: fix warning with powerplay disabled.
  drm/amd/powerplay: delete useless code as pptable changed in vbios.
  drm/amd/powerplay: fix bug visit array out of bounds
  drm/amdgpu: fix smu ucode memleak (v2)
  drm/amdgpu: add release firmware for cgs
  drm/amdgpu: fix tonga smu_fini mem leak
  drm/amdgpu: fix fiji smu fini mem leak
  drm/amdgpu: fix cik sdma ucode memleak
  drm/amdgpu: fix sdma24 ucode mem leak
  drm/amdgpu: fix sdma3 ucode mem leak
  drm/amdgpu: fix uvd fini mem leak
  drm/amdgpu: fix gfx 7 ucode mem leak
  drm/amdgpu: fix gfx8 ucode mem leak
  drm/amdgpu: fix missing free wb for cond_exec
  drm/amdgpu: fix memleak in pptable_init
  drm/amdgpu: fix mem leak in atombios
  drm/amdgpu: fix mem leak in pplib/hwmgr
  drm/amdgpu: fix mem leak in smumgr
  drm/amdgpu: add pipeline sync while vmid switch in same ctx
  drm/amdgpu: vBIOS post only call when mem_size zero
  ...

8 years agoMerge tag 'acpi-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 10 Jun 2016 15:15:37 +0000 (08:15 -0700)]
Merge tag 'acpi-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "A recently introduced boot regression related to the ACPI EC
  initialization is addressed by restoring the previous behavior (Lv
  Zheng)"

* tag 'acpi-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Fix a boot EC regresion by restoring boot EC support for the DSDT EC

8 years agoMerge tag 'pm-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 10 Jun 2016 15:09:12 +0000 (08:09 -0700)]
Merge tag 'pm-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "Stable-candidate fixes for the intel_pstate driver and the cpuidle
  core.

  Specifics:

   - Fix two intel_pstate initialization issues, one of which was
     introduced during the 4.4 cycle (Srinivas Pandruvada)

   - Fix kernel build with CONFIG_UBSAN set and CONFIG_CPU_IDLE unset
     (Catalin Marinas)"

* tag 'pm-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Fix ->set_policy() interface for no_turbo
  cpufreq: intel_pstate: Fix code ordering in intel_pstate_set_policy()
  cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE

8 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Fri, 10 Jun 2016 15:00:47 +0000 (08:00 -0700)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "7 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/fadvise.c: do not discard partial pages with POSIX_FADV_DONTNEED
  mm: introduce dedicated WQ_MEM_RECLAIM workqueue to do lru_add_drain_all
  kernel/relay.c: fix potential memory leak
  mm: thp: broken page count after commit aa88b68c3b1d
  revert "mm: memcontrol: fix possible css ref leak on oom"
  kasan: change memory hot-add error messages to info messages
  mm/hugetlb: fix huge page reserve accounting for private mappings

8 years agox86/ioapic: Fix incorrect pointers in ioapic_setup_resources()
Rui Wang [Wed, 8 Jun 2016 06:59:52 +0000 (14:59 +0800)]
x86/ioapic: Fix incorrect pointers in ioapic_setup_resources()

On a 4-socket Brickland system, hot-removing one ioapic is fine.
Hot-removing the 2nd one causes panic in mp_unregister_ioapic()
while calling release_resource().

It is because the iomem_res pointer has already been released
when removing the first ioapic.

To explain the use of &res[num] here: res is assigned to ioapic_resources,
and later in ioapic_insert_resources() we do:

struct resource *r = ioapic_resources;

        for_each_ioapic(i) {
                insert_resource(&iomem_resource, r);
                r++;
        }

Here 'r' is treated as an arry of 'struct resource', and the r++ ensures
that each element of the array is inserted separately. Thus we should call
release_resouce() on each element at &res[num].

Fix it by assigning the correct pointers to ioapics[i].iomem_res in
ioapic_setup_resources().

Signed-off-by: Rui Wang <rui.y.wang@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: tony.luck@intel.com
Cc: linux-pci@vger.kernel.org
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: bhelgaas@google.com
Link: http://lkml.kernel.org/r/1465369193-4816-3-git-send-email-rui.y.wang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
8 years agox86/entry/traps: Don't force in_interrupt() to return true in IST handlers
Andy Lutomirski [Tue, 24 May 2016 22:54:04 +0000 (15:54 -0700)]
x86/entry/traps: Don't force in_interrupt() to return true in IST handlers

Forcing in_interrupt() to return true if we're not in a bona fide
interrupt confuses the softirq code.  This fixes warnings like:

  NOHZ: local_softirq_pending 282

... which can happen when running things like selftests/x86.

This will change perf's static percpu buffer usage in IST context.
I think this is okay, and it's changing the behavior to match
historical (pre-4.0) behavior.

Signed-off-by: Andy Lutomirski <luto@kernel.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: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 959274753857 ("x86, traps: Track entry into and exit from IST context")
Link: http://lkml.kernel.org/r/cdc215f94d118d691d73df35275022331156fb45.1464130360.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
8 years agovmxnet3: segCnt can be 1 for LRO packets
Shrikrishna Khare [Wed, 8 Jun 2016 14:40:53 +0000 (07:40 -0700)]
vmxnet3: segCnt can be 1 for LRO packets

The device emulation may send segCnt of 1 for LRO packets.

Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
Signed-off-by: Jin Heo <heoj@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agopacket: compat support for sock_fprog
Willem de Bruijn [Tue, 7 Jun 2016 16:06:34 +0000 (12:06 -0400)]
packet: compat support for sock_fprog

Socket option PACKET_FANOUT_DATA takes a struct sock_fprog as argument
if PACKET_FANOUT has mode PACKET_FANOUT_CBPF. This structure contains
a pointer into user memory. If userland is 32-bit and kernel is 64-bit
the two disagree about the layout of struct sock_fprog.

Add compat setsockopt support to convert a 32-bit compat_sock_fprog to
a 64-bit sock_fprog. This is analogous to compat_sock_fprog support for
SO_REUSEPORT added in commit 1957598840f4 ("soreuseport: add compat
case for setsockopt SO_ATTACH_REUSEPORT_CBPF").

Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agostmmac: fix parameter to dwmac4_set_umac_addr()
Ben Dooks [Wed, 8 Jun 2016 18:21:17 +0000 (19:21 +0100)]
stmmac: fix parameter to dwmac4_set_umac_addr()

The dwmac4_set_umac_addr() takes a struct mac_device_info as
the first parameter, but is being passed a ioaddr instead from
dwmac4_set_filter(). Fix the warning/bug by changing the first
parameter.

drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:159:46: warning: incorrect type in argument 1 (different address spaces)
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:159:46:    expected struct mac_device_info *hw
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:159:46:    got void [noderef] <asn:2>*ioaddr

Note, only compile tested this as do not have any
hardware with it in.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'mlx5-fixes'
David S. Miller [Fri, 10 Jun 2016 05:06:27 +0000 (22:06 -0700)]
Merge branch 'mlx5-fixes'

Saeed Mahameed says:

====================
Mellanox 100G mlx5 fixes for 4.7-rc

The following series provides some small fixes for mlx5 driver.

Two small fixes for the mlx5e netdev, the 1st is for the blue flame
quota accounting and the 2nd is a small refactoring in shutdown flow.

Five trivial fixes for mlx5 E-Switch.
- Allmulti mc_promisc flag was not set in a specific flow.
- Modify VF node guid when admin mac is changed.
- Race in vport enable flow.
- Misc code fixes (kvfree when needed and error pointers checking).

Three in mlx5 steering area.  Correct capabilities checking and root flow table update.

Three misc fixes in mlx5 commands enum and layouts.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5e: Fix blue flame quota logic
Eli Cohen [Thu, 9 Jun 2016 21:07:40 +0000 (00:07 +0300)]
net/mlx5e: Fix blue flame quota logic

Blue flame is a latency enhancement feature that allows the driver to
write the packet data directly to the NIC's registers thus making the
read of the packet data from host memory redundant.

We maintain a quota for the blue flame which is reloaded whenever we
identify that the hardware is processing send requests and processes
them fast enough so by the time we post the next send request it was
able to process all the pending ones. This indicates that the hardware
is capable of processing more blue flame requests efficiently. The blue
flame quota is decremented whenever we send using blue flame.

The current code erroneously clears the budget if we did not use blue
flame for the current post send operation and we fix it here.

Fixes: 88a85f99e51f ('net/mlx5e: TX latency optimization to save DMA reads')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5e: Use ndo_stop explicitly at shutdown flow
Eran Ben Elisha [Thu, 9 Jun 2016 21:07:39 +0000 (00:07 +0300)]
net/mlx5e: Use ndo_stop explicitly at shutdown flow

The current implementation copies the flow of ndo_stop instead of
calling it explicitly, Fixed it.

Fixes: 5fc7197d3a25 ("net/mlx5: Add pci shutdown callback")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: E-Switch, always set mc_promisc for allmulti vports
Mohamad Haj Yahia [Thu, 9 Jun 2016 21:07:38 +0000 (00:07 +0300)]
net/mlx5: E-Switch, always set mc_promisc for allmulti vports

Set the mc_promisc flag also in the case of adding new mc address to
existing allmulti vport.

Fixes: a35f71f27a61 ('net/mlx5: E-Switch, Implement promiscuous rx modes vf request handling')
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: E-Switch, Modify node guid on vf set MAC
Noa Osherovich [Thu, 9 Jun 2016 21:07:37 +0000 (00:07 +0300)]
net/mlx5: E-Switch, Modify node guid on vf set MAC

In RoCE, the RDMA-CM needs the node guid to establish connection
between nodes.
Today, the node guid exposed to mlx5 Ethernet VFs is zero, therefore
RDMA-CM on the VF is broken.

Whenever the administrator sets a MAC for a VF, derive the node guid
from it and set it as well in the following way:
MAC: e4:1d:2d:b3:f4:01 -> node_guid: e4:1d:2d:ff:fe:b3:f4:01

Fixes: 77256579c6b43 ('net/mlx5: E-Switch, Introduce Vport...')
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: E-Switch, Fix vport enable flow
Mohamad Haj Yahia [Thu, 9 Jun 2016 21:07:36 +0000 (00:07 +0300)]
net/mlx5: E-Switch, Fix vport enable flow

Reorder vport enable flow to mark the vport as enabled before calling
the vport change handler which was modified to handle the case for
when vport is not enabled.

This fixes the case for when the PF netdev is open before sriov is
enabled, once sriov is enabled at esw_enable_vport,
esw_vport_change_handle_locked didn't read the PF context since it
thought the PF vport was not enabled.

When we enable the vport, arming for events is not required anymore,
since it's done on the vport change handle

Fixes: 586cfa7f1d58 ('net/mlx5: E-Switch, Use vport event handler for vport cleanup')
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: E-Switch, Use the correct error check on returned pointers
Or Gerlitz [Thu, 9 Jun 2016 21:07:35 +0000 (00:07 +0300)]
net/mlx5: E-Switch, Use the correct error check on returned pointers

The mlx5 flow-steering API (mlx5_create_flow_table/group/rule) never
returns null pointer on error. Even if it was doing that, checking
for IS_ERR_OR_NULL(p) and then returning PTR_ERR(p) would have cause
bugs, since PTR_ERR(NULL) --> success, crash.

To make things more robust and protect against related future bugs,
convert all IS_ERR_OR_NULL checks on returned values to IS_ERR.

Fixes: 5742df0f7dbe ('net/mlx5: E-Switch, Introduce VST vport ingress/egress ACLs')
Fixes: 86d722ad2c3b ('net/mlx5: Use flow steering infrastructure for mlx5_en')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: E-Switch, Use the correct free() function
Or Gerlitz [Thu, 9 Jun 2016 21:07:34 +0000 (00:07 +0300)]
net/mlx5: E-Switch, Use the correct free() function

We must use kvfree() for something that could have been allocated with vzalloc(),
do that.

Fixes: 5742df0f7dbe ('net/mlx5: E-Switch, Introduce VST vport ingress/egress ACLs')
Fixes: 86d722ad2c3b ('net/mlx5: Use flow steering infrastructure for mlx5_en')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: Fix E-Switch flow steering capabilities check
Maor Gottlieb [Thu, 9 Jun 2016 21:07:33 +0000 (00:07 +0300)]
net/mlx5: Fix E-Switch flow steering capabilities check

Add missing capabilities check for E-Switch FDB and ACLs flow
tables before creating their namespace in flow steering.

Fixes: efdc810ba39d ('net/mlx5: Flow steering, Add vport ACL support')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: Fix flow steering NIC capabilities check
Maor Gottlieb [Thu, 9 Jun 2016 21:07:32 +0000 (00:07 +0300)]
net/mlx5: Fix flow steering NIC capabilities check

Flow steering infrastructure is currently used only on link layer
ethernet, therefore the driver should initialize the flow steering
when the device link layer is ethernet.

In addition, add missing capability check before initializing the
namespace of NIC RX flow tables.

Fixes: 2530236303d9 ('net/mlx5_core: Flow steering tree initialization')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: Fix root flow table update
Maor Gottlieb [Thu, 9 Jun 2016 21:07:31 +0000 (00:07 +0300)]
net/mlx5: Fix root flow table update

When we destroy the last flow table we need to update
the root_ft to NULL.

It fixes an issue for when the last flow table is destroyed
and recreated again, root_ft pointer will not be updated,
as a result traffic will be dropped.

Fixes: 2cc43b494a6c ('net/mlx5_core: Managing root flow table')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: Fix MLX5_CMD_OP_MAX to be defined correctly
Shahar Klein [Thu, 9 Jun 2016 21:07:30 +0000 (00:07 +0300)]
net/mlx5: Fix MLX5_CMD_OP_MAX to be defined correctly

Having MLX5_CMD_OP_MAX on another file causes us to repeatedly miss
accounting new commands added to the driver and hence there're no entries
for them in debugfs. To solve that, we integrate it into the commands enum
as the last entry.

Fixes: 34a40e689393 ('net/mlx5_core: Introduce modify flow table command')
Signed-off-by: Shahar Klein <shahark@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: Fix masking of reserved bits in XRCD number
Majd Dibbiny [Thu, 9 Jun 2016 21:07:29 +0000 (00:07 +0300)]
net/mlx5: Fix masking of reserved bits in XRCD number

Mask the reserved bits when reading the number of newly
created XRCD.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5: Fix the size of modify QP mailbox
Majd Dibbiny [Thu, 9 Jun 2016 21:07:28 +0000 (00:07 +0300)]
net/mlx5: Fix the size of modify QP mailbox

Add 16 reserved bytes at the end of mlx5_modify_qp_mbox_in to
match the hardware spec definition.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agopowerpc/nohash: Fix build break with 64K pages
Michael Ellerman [Wed, 8 Jun 2016 11:50:50 +0000 (21:50 +1000)]
powerpc/nohash: Fix build break with 64K pages

Commit 74701d5947a6 "powerpc/mm: Rename function to indicate we are
allocating fragments" renamed page_table_free() to pte_fragment_free().
One occurrence was mistyped as pte_fragment_fre().

This only breaks the nohash 64K page build, which is not the default or
enabled in any defconfig.

Fixes: 74701d5947a6 ("powerpc/mm: Rename function to indicate we are allocating fragments")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
8 years agoMerge branch 'fixes-for-v4.7-rc3' of http://git.agner.ch/git/linux-drm-fsl-dcu into...
Dave Airlie [Fri, 10 Jun 2016 02:17:46 +0000 (12:17 +1000)]
Merge branch 'fixes-for-v4.7-rc3' of http://git.agner.ch/git/linux-drm-fsl-dcu into drm-fixes

* 'fixes-for-v4.7-rc3' of http://git.agner.ch/git/linux-drm-fsl-dcu:
  drm/fsl-dcu: use flat regmap cache

8 years agodrm/amdgpu: fix warning with powerplay disabled.
Dave Airlie [Fri, 10 Jun 2016 01:40:49 +0000 (11:40 +1000)]
drm/amdgpu: fix warning with powerplay disabled.

This just fixes a warning when you disable powerplay.

Signed-off-by: Dave Airlie <airlied@redhat.com>
8 years agoMerge branch 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Thu, 9 Jun 2016 23:46:59 +0000 (09:46 +1000)]
Merge branch 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Mostly memory leak and firmware leak fixes for amdgpu.  A bit bigger than
usual since this is several weeks worth of fixes.

* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux: (28 commits)
  drm/amd/powerplay: delete useless code as pptable changed in vbios.
  drm/amd/powerplay: fix bug visit array out of bounds
  drm/amdgpu: fix smu ucode memleak (v2)
  drm/amdgpu: add release firmware for cgs
  drm/amdgpu: fix tonga smu_fini mem leak
  drm/amdgpu: fix fiji smu fini mem leak
  drm/amdgpu: fix cik sdma ucode memleak
  drm/amdgpu: fix sdma24 ucode mem leak
  drm/amdgpu: fix sdma3 ucode mem leak
  drm/amdgpu: fix uvd fini mem leak
  drm/amdgpu: fix gfx 7 ucode mem leak
  drm/amdgpu: fix gfx8 ucode mem leak
  drm/amdgpu: fix missing free wb for cond_exec
  drm/amdgpu: fix memleak in pptable_init
  drm/amdgpu: fix mem leak in atombios
  drm/amdgpu: fix mem leak in pplib/hwmgr
  drm/amdgpu: fix mem leak in smumgr
  drm/amdgpu: add pipeline sync while vmid switch in same ctx
  drm/amdgpu: vBIOS post only call when mem_size zero
  drm/amdgpu: modify sdma start sequence
  ...

8 years agoMerge branch 'msm-fixes-4.7-rc3' of git://people.freedesktop.org/~robclark/linux...
Dave Airlie [Thu, 9 Jun 2016 23:45:42 +0000 (09:45 +1000)]
Merge branch 'msm-fixes-4.7-rc3' of git://people.freedesktop.org/~robclark/linux into drm-fixes

* 'msm-fixes-4.7-rc3' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: fix potential submit error path issue
  drm/msm: fix some crashes in submit fail path
  drm/msm: deal with exhausted vmap space better

8 years agoMerge branches 'pm-cpufreq-fixes' and 'pm-cpuidle'
Rafael J. Wysocki [Thu, 9 Jun 2016 21:49:16 +0000 (23:49 +0200)]
Merge branches 'pm-cpufreq-fixes' and 'pm-cpuidle'

* pm-cpufreq-fixes:
  cpufreq: intel_pstate: Fix ->set_policy() interface for no_turbo
  cpufreq: intel_pstate: Fix code ordering in intel_pstate_set_policy()

* pm-cpuidle:
  cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE

8 years agoMerge branch 'acpi-ec'
Rafael J. Wysocki [Thu, 9 Jun 2016 21:48:54 +0000 (23:48 +0200)]
Merge branch 'acpi-ec'

* acpi-ec:
  ACPI / EC: Fix a boot EC regresion by restoring boot EC support for the DSDT EC

8 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Linus Torvalds [Thu, 9 Jun 2016 21:36:12 +0000 (14:36 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "This is the first -rc pull for the RDMA subsystem.  The patch count is
  high, but they are all smallish patches fixing simple things for the
  most part, and the overall line count of changes here is smaller than
  the patch count would lead a person to believe.

  Code is up and running in my labs, including direct testing of cxgb4,
  mlx4, mlx5, ocrdma, and qib.

  Summary:

   - Multiple minor fixes to the rdma core
   - Multiple minor fixes to hfi1
   - Multiple minor fixes to mlx5
   - A very few other minor fixes (SRP, IPoIB, usNIC, mlx4)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (35 commits)
  IB/IPoIB: Don't update neigh validity for unresolved entries
  IB/mlx5: Fix alternate path code
  IB/mlx5: Fix pkey_index length in the QP path record
  IB/mlx5: Fix entries check in mlx5_ib_resize_cq
  IB/mlx5: Fix entries checks in mlx5_ib_create_cq
  IB/mlx5: Check BlueFlame HCA support
  IB/mlx5: Fix returned values of query QP
  IB/mlx5: Limit query HCA clock
  IB/mlx5: Fix FW version diaplay in sysfs
  IB/mlx5: Return PORT_ERR in Active to Initializing tranisition
  IB/mlx5: Set flow steering capability bit
  IB/core: Make all casts in ib_device_cap_flags enum consistent
  IB/core: Fix bit curruption in ib_device_cap_flags structure
  IB/core: Initialize sysfs attributes before sysfs create group
  IB/IPoIB: Disable bottom half when dealing with device address
  IB/core: Fix removal of default GID cache entry
  IB/IPoIB: Fix race between ipoib_remove_one to sysfs functions
  IB/core: Fix query port failure in RoCE
  IB/core: fix error unwind in sysfs hw counters code
  IB/core: Fix array length allocation
  ...

8 years agoMerge tag 'arc-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Linus Torvalds [Thu, 9 Jun 2016 21:28:39 +0000 (14:28 -0700)]
Merge tag 'arc-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:

 - Revert of ll-sc backoff retry workaround in atomics/spinlocks as
   hardware is now proven to work just fine

 - Typo fixes (Thanks Andrea Gelmini)

 - Removal of obsolete DT property (Alexey)

 - Other minor fixes

* tag 'arc-4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  Revert "ARCv2: spinlock/rwlock/atomics: Delayed retry of failed SCOND with exponential backoff"
  Revert "ARCv2: spinlock/rwlock: Reset retry delay when starting a new spin-wait cycle"
  Revert "ARCv2: spinlock/rwlock/atomics: reduce 1 instruction in exponential backoff"
  ARC: don't enable DISCONTIGMEM unconditionally
  ARC: [intc-compact] simplify code for 2 priority levels
  arc: Get rid of root core-frequency property
  Fix typos

8 years agomm/fadvise.c: do not discard partial pages with POSIX_FADV_DONTNEED
Oleg Drokin [Wed, 8 Jun 2016 22:33:59 +0000 (15:33 -0700)]
mm/fadvise.c: do not discard partial pages with POSIX_FADV_DONTNEED

I noticed that the logic in the fadvise64_64 syscall is incorrect for
partial pages.  While first page of the region is correctly skipped if
it is partial, the last page of the region is mistakenly discarded.
This leads to problems for applications that read data in
non-page-aligned chunks discarding already processed data between the
reads.

A somewhat misguided application that does something like write(XX bytes
(non-page-alligned)); drop the data it just wrote; repeat gets a
significant penalty in performance as a result.

Link: http://lkml.kernel.org/r/1464917140-1506698-1-git-send-email-green@linuxhacker.ru
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm: introduce dedicated WQ_MEM_RECLAIM workqueue to do lru_add_drain_all
Wang Sheng-Hui [Wed, 8 Jun 2016 22:33:56 +0000 (15:33 -0700)]
mm: introduce dedicated WQ_MEM_RECLAIM workqueue to do lru_add_drain_all

This patch is based on https://patchwork.ozlabs.org/patch/574623/.

Tejun submitted commit 23d11a58a9a6 ("workqueue: skip flush dependency
checks for legacy workqueues") for the legacy create*_workqueue()
interface.

But some workq created by alloc_workqueue still reports warning on
memory reclaim, e.g nvme_workq with flag WQ_MEM_RECLAIM set:

    workqueue: WQ_MEM_RECLAIM nvme:nvme_reset_work is flushing !WQ_MEM_RECLAIM events:lru_add_drain_per_cpu
    ------------[ cut here ]------------
    WARNING: CPU: 0 PID: 6 at SoC/linux/kernel/workqueue.c:2448 check_flush_dependency+0xb4/0x10c
    ...
    check_flush_dependency+0xb4/0x10c
    flush_work+0x54/0x140
    lru_add_drain_all+0x138/0x188
    migrate_prep+0xc/0x18
    alloc_contig_range+0xf4/0x350
    cma_alloc+0xec/0x1e4
    dma_alloc_from_contiguous+0x38/0x40
    __dma_alloc+0x74/0x25c
    nvme_alloc_queue+0xcc/0x36c
    nvme_reset_work+0x5c4/0xda8
    process_one_work+0x128/0x2ec
    worker_thread+0x58/0x434
    kthread+0xd4/0xe8
    ret_from_fork+0x10/0x50

That's because lru_add_drain_all() will schedule the drain work on
system_wq, whose flag is set to 0, !WQ_MEM_RECLAIM.

Introduce a dedicated WQ_MEM_RECLAIM workqueue to do
lru_add_drain_all(), aiding in getting memory freed.

Link: http://lkml.kernel.org/r/1464917521-9775-1-git-send-email-shhuiw@foxmail.com
Signed-off-by: Wang Sheng-Hui <shhuiw@foxmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agokernel/relay.c: fix potential memory leak
Zhouyi Zhou [Wed, 8 Jun 2016 22:33:53 +0000 (15:33 -0700)]
kernel/relay.c: fix potential memory leak

When relay_open_buf() fails in relay_open(), code will goto free_bufs,
but chan is nowhere freed.

Link: http://lkml.kernel.org/r/1464777927-19675-1-git-send-email-yizhouzhou@ict.ac.cn
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm: thp: broken page count after commit aa88b68c3b1d
Gerald Schaefer [Wed, 8 Jun 2016 22:33:50 +0000 (15:33 -0700)]
mm: thp: broken page count after commit aa88b68c3b1d

Christian Borntraeger reported a kernel panic after corrupt page counts,
and it turned out to be a regression introduced with commit aa88b68c3b1d
("thp: keep huge zero page pinned until tlb flush"), at least on s390.

put_huge_zero_page() was moved over from zap_huge_pmd() to
release_pages(), and it was replaced by tlb_remove_page().  However,
release_pages() might not always be triggered by (the arch-specific)
tlb_remove_page().

On s390 we call free_page_and_swap_cache() from tlb_remove_page(), and
not tlb_flush_mmu() -> free_pages_and_swap_cache() like the generic
version, because we don't use the MMU-gather logic.  Although both
functions have very similar names, they are doing very unsimilar things,
in particular free_page_xxx is just doing a put_page(), while
free_pages_xxx calls release_pages().

This of course results in very harmful put_page()s on the huge zero
page, on architectures where tlb_remove_page() is implemented in this
way.  It seems to affect only s390 and sh, but sh doesn't have THP
support, so the problem (currently) probably only exists on s390.

The following quick hack fixed the issue:

Link: http://lkml.kernel.org/r/20160602172141.75c006a9@thinkpad
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: <stable@vger.kernel.org> [4.6.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agorevert "mm: memcontrol: fix possible css ref leak on oom"
Andrew Morton [Wed, 8 Jun 2016 22:33:47 +0000 (15:33 -0700)]
revert "mm: memcontrol: fix possible css ref leak on oom"

Revert commit 1383399d7be0 ("mm: memcontrol: fix possible css ref leak
on oom").  Johannes points out "There is a task_in_memcg_oom() check
before calling mem_cgroup_oom()".

Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agokasan: change memory hot-add error messages to info messages
Shuah Khan [Wed, 8 Jun 2016 22:33:45 +0000 (15:33 -0700)]
kasan: change memory hot-add error messages to info messages

Change the following memory hot-add error messages to info messages.
There is no need for these to be errors.

   kasan: WARNING: KASAN doesn't support memory hot-add
   kasan: Memory hot-add will be disabled

Link: http://lkml.kernel.org/r/1464794430-5486-1-git-send-email-shuahkh@osg.samsung.com
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm/hugetlb: fix huge page reserve accounting for private mappings
Mike Kravetz [Wed, 8 Jun 2016 22:33:42 +0000 (15:33 -0700)]
mm/hugetlb: fix huge page reserve accounting for private mappings

When creating a private mapping of a hugetlbfs file, it is possible to
unmap pages via ftruncate or fallocate hole punch.  If subsequent faults
repopulate these mappings, the reserve counts will go negative.  This is
because the code currently assumes all faults to private mappings will
consume reserves.  The problem can be recreated as follows:

 - mmap(MAP_PRIVATE) a file in hugetlbfs filesystem
 - write fault in pages in the mapping
 - fallocate(FALLOC_FL_PUNCH_HOLE) some pages in the mapping
 - write fault in pages in the hole

This will result in negative huge page reserve counts and negative
subpool usage counts for the hugetlbfs.  Note that this can also be
recreated with ftruncate, but fallocate is more straight forward.

This patch modifies the routines vma_needs_reserves and vma_has_reserves
to examine the reserve map associated with private mappings similar to
that for shared mappings.  However, the reserve map semantics for
private and shared mappings are very different.  This results in subtly
different code that is explained in the comments.

Link: http://lkml.kernel.org/r/1464720957-15698-1-git-send-email-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMerge tag 'mac80211-for-davem-2016-06-09' of git://git.kernel.org/pub/scm/linux/kerne...
David S. Miller [Thu, 9 Jun 2016 18:52:47 +0000 (11:52 -0700)]
Merge tag 'mac80211-for-davem-2016-06-09' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Two more fixes for now:
 * a fix for a long-standing iwpriv 32/64 compat issue
 * two fairly recently introduced (4.6) warning asking for
   symmetric operations are erroneous and I remove them
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'mlxsw-fixes'
David S. Miller [Thu, 9 Jun 2016 18:20:05 +0000 (11:20 -0700)]
Merge branch 'mlxsw-fixes'

Jiri Pirko says:

====================
mlxsw: couple of fixes

Couple of fixes from Ido.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: spectrum: Don't sleep during ndo_get_phys_port_name()
Ido Schimmel [Thu, 9 Jun 2016 07:51:40 +0000 (09:51 +0200)]
mlxsw: spectrum: Don't sleep during ndo_get_phys_port_name()

When rtnl_fill_ifinfo() is called for a certain netdevice it queries its
various parameters such as switch id and physical port name. The
function might get called in an atomic context, which means the
underlying driver must not sleep during the query operation.

Don't query the device and sleep during ndo_get_phys_port_name(), but
instead store the needed parameters in port creation time.

Fixes: 2bf9a58675c5 ("mlxsw: spectrum: Add support for physical port names")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: spectrum: Make split flow match firmware requirements
Ido Schimmel [Thu, 9 Jun 2016 07:51:39 +0000 (09:51 +0200)]
mlxsw: spectrum: Make split flow match firmware requirements

When a port is created following a split / unsplit we need to map it to
the correct module and lane, enable it and then continue to initialize
its various parameters such as MTU and VLAN filters.

Under certain conditions, such as trying to split ports at the bottom
row of the front panel by four, we get firmware errors.

After evaluating this with the firmware team it was decided to alter the
split / unsplit flow, so that first all the affected ports are mapped,
then enabled and finally each is initialized separately.

Fix the split / unsplit flow by first mapping and enabling all the
affected ports. Newer firmware versions will support both flows.

Fixes: 18f1e70c4137 ("mlxsw: spectrum: Introduce port splitting")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agodrm/amd/powerplay: delete useless code as pptable changed in vbios.
Rex Zhu [Fri, 3 Jun 2016 11:12:42 +0000 (19:12 +0800)]
drm/amd/powerplay: delete useless code as pptable changed in vbios.

The vbios table changed so this code is useless now.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: fix bug visit array out of bounds
Rex Zhu [Thu, 2 Jun 2016 11:11:01 +0000 (19:11 +0800)]
drm/amd/powerplay: fix bug visit array out of bounds

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix smu ucode memleak (v2)
Monk Liu [Tue, 31 May 2016 05:44:48 +0000 (13:44 +0800)]
drm/amdgpu: fix smu ucode memleak (v2)

Properly release the smu ucode in powerplay.

v2: agd: add polaris as well

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: add release firmware for cgs
Monk Liu [Tue, 31 May 2016 05:44:30 +0000 (13:44 +0800)]
drm/amdgpu: add release firmware for cgs

Powerplay uses cgs to load the firmware so add a function
to release it as well to avoid leaking it on driver unload.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix tonga smu_fini mem leak
Monk Liu [Mon, 30 May 2016 07:16:26 +0000 (15:16 +0800)]
drm/amdgpu: fix tonga smu_fini mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix fiji smu fini mem leak
Monk Liu [Mon, 30 May 2016 07:16:04 +0000 (15:16 +0800)]
drm/amdgpu: fix fiji smu fini mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix cik sdma ucode memleak
Monk Liu [Mon, 30 May 2016 08:07:40 +0000 (16:07 +0800)]
drm/amdgpu: fix cik sdma ucode memleak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix sdma24 ucode mem leak
Monk Liu [Mon, 30 May 2016 08:05:58 +0000 (16:05 +0800)]
drm/amdgpu: fix sdma24 ucode mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix sdma3 ucode mem leak
Monk Liu [Mon, 30 May 2016 07:15:32 +0000 (15:15 +0800)]
drm/amdgpu: fix sdma3 ucode mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix uvd fini mem leak
Monk Liu [Mon, 30 May 2016 07:13:59 +0000 (15:13 +0800)]
drm/amdgpu: fix uvd fini mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix gfx 7 ucode mem leak
Monk Liu [Mon, 30 May 2016 08:01:48 +0000 (16:01 +0800)]
drm/amdgpu: fix gfx 7 ucode mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix gfx8 ucode mem leak
Monk Liu [Mon, 30 May 2016 06:18:57 +0000 (14:18 +0800)]
drm/amdgpu: fix gfx8 ucode mem leak

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix missing free wb for cond_exec
Monk Liu [Mon, 30 May 2016 06:17:42 +0000 (14:17 +0800)]
drm/amdgpu: fix missing free wb for cond_exec

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix memleak in pptable_init
Monk Liu [Mon, 30 May 2016 05:43:45 +0000 (13:43 +0800)]
drm/amdgpu: fix memleak in pptable_init

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix mem leak in atombios
Monk Liu [Fri, 27 May 2016 11:34:11 +0000 (19:34 +0800)]
drm/amdgpu: fix mem leak in atombios

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix mem leak in pplib/hwmgr
Monk Liu [Fri, 27 May 2016 11:09:06 +0000 (19:09 +0800)]
drm/amdgpu: fix mem leak in pplib/hwmgr

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix mem leak in smumgr
Monk Liu [Fri, 27 May 2016 09:52:58 +0000 (17:52 +0800)]
drm/amdgpu: fix mem leak in smumgr

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: add pipeline sync while vmid switch in same ctx
Chunming Zhou [Wed, 27 Apr 2016 10:07:41 +0000 (18:07 +0800)]
drm/amdgpu: add pipeline sync while vmid switch in same ctx

Since vmid-mgr supports vmid sharing in one vm, the same ctx could
get different vmids for two emits without vm flush, vm_flush could
be done in another ring.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: vBIOS post only call when mem_size zero
Monk Liu [Tue, 24 May 2016 05:23:46 +0000 (13:23 +0800)]
drm/amdgpu: vBIOS post only call when mem_size zero

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: modify sdma start sequence
Monk Liu [Wed, 25 May 2016 08:57:14 +0000 (16:57 +0800)]
drm/amdgpu: modify sdma start sequence

should fist halt engine, and then doing the register
programing, and later unhalt engine, and finally run
ring_test.

this help fix reloading driver hang issue of SDMA
ring

original sequence is wrong for it programing engine
after unhalt, which will lead to fault behavior when
doing driver reloading after unloaded.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: init more register for sdma
Monk Liu [Wed, 25 May 2016 08:55:50 +0000 (16:55 +0800)]
drm/amdgpu: init more register for sdma

This help fix reloading driver hang issue of SDMA
ring

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: clear SA bo when created
Monk Liu [Wed, 25 May 2016 08:55:07 +0000 (16:55 +0800)]
drm/amdgpu: clear SA bo when created

This help fix reloading driver hang issue of SDMA
ring

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix fw leak in non-powerplay dpm code
Alex Deucher [Wed, 1 Jun 2016 15:09:01 +0000 (11:09 -0400)]
drm/amdgpu: fix fw leak in non-powerplay dpm code

We need to release the firmware on driver tear down.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix pplib finish bug
Monk Liu [Thu, 19 May 2016 06:36:34 +0000 (14:36 +0800)]
drm/amdgpu: fix pplib finish bug

1,should use late_fini to kfree all resource otherwise
the released pointer maybe accessed in IRQ ip fini routine.

2,hwmgr should not be kfree by pem_fini which is invoked
by hw fini path.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: impl late_fini for amdgpu_pp_ip
Monk Liu [Thu, 19 May 2016 06:36:01 +0000 (14:36 +0800)]
drm/amdgpu: impl late_fini for amdgpu_pp_ip

This implements late_init support for powerplay.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: add late_fini for ip_funcs
Monk Liu [Thu, 19 May 2016 06:35:17 +0000 (14:35 +0800)]
drm/amdgpu: add late_fini for ip_funcs

This give IP modules an optional late cleanup
function.  This is needed to handle tricky inter-module
dependencies during tear down.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/admgpu/powerplay/polaris: fix powertune table upload
Rex Zhu [Mon, 23 May 2016 10:24:41 +0000 (18:24 +0800)]
drm/admgpu/powerplay/polaris: fix powertune table upload

Exclude AVFS related fields when update powertune table to hw.
The driver shouldn't set them directly.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/iceland: Set SC_PA_RASTER_CONFIG according to different RB enabled
Ken Wang [Tue, 24 May 2016 01:26:27 +0000 (09:26 +0800)]
drm/amdgpu/iceland: Set SC_PA_RASTER_CONFIG according to different RB enabled

fix the raster config setting for different iceland configs.

Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agowext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel
Prasun Maiti [Mon, 6 Jun 2016 14:34:19 +0000 (20:04 +0530)]
wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel

iwpriv app uses iw_point structure to send data to Kernel. The iw_point
structure holds a pointer. For compatibility Kernel converts the pointer
as required for WEXT IOCTLs (SIOCIWFIRST to SIOCIWLAST). Some drivers
may use iw_handler_def.private_args to populate iwpriv commands instead
of iw_handler_def.private. For those case, the IOCTLs from
SIOCIWFIRSTPRIV to SIOCIWLASTPRIV will follow the path ndo_do_ioctl().
Accordingly when the filled up iw_point structure comes from 32 bit
iwpriv to 64 bit Kernel, Kernel will not convert the pointer and sends
it to driver. So, the driver may get the invalid data.

The pointer conversion for the IOCTLs (SIOCIWFIRSTPRIV to
SIOCIWLASTPRIV), which follow the path ndo_do_ioctl(), is mandatory.
This patch adds pointer conversion from 32 bit to 64 bit and vice versa,
if the ioctl comes from 32 bit iwpriv to 64 bit Kernel.

Cc: stable@vger.kernel.org
Signed-off-by: Prasun Maiti <prasunmaiti87@gmail.com>
Signed-off-by: Ujjal Roy <royujjal@gmail.com>
Tested-by: Dibyajyoti Ghosh <dibyajyotig@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agocfg80211: remove get/set antenna and tx power warnings
Johannes Berg [Thu, 9 Jun 2016 07:40:55 +0000 (09:40 +0200)]
cfg80211: remove get/set antenna and tx power warnings

Since set_tx_power and set_antenna are frequently implemented
without the matching get_tx_power/get_antenna, we shouldn't
have added warnings for those. Remove them.

The remaining ones are correct and need to be implemented
symmetrically for correct operation.

Cc: stable@vger.kernel.org
Fixes: de3bb771f471 ("cfg80211: add more warnings for inconsistent ops")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agoALSA: hda - Add PCI ID for Kabylake
Vinod Koul [Thu, 9 Jun 2016 06:02:14 +0000 (11:32 +0530)]
ALSA: hda - Add PCI ID for Kabylake

Kabylake shows up as PCI ID 0xa171. And Kabylake-LP as 0x9d71.
Since these are similar to Skylake add these to SKL_PLUS macro

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
8 years agoqfq: don't leak skb if kzalloc fails
Florian Westphal [Wed, 8 Jun 2016 21:23:01 +0000 (23:23 +0200)]
qfq: don't leak skb if kzalloc fails

When we need to create a new aggregate to enqueue the skb we call kzalloc.
If that fails we returned ENOBUFS without freeing the skb.

Spotted during code review.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoip6gre: Allow live link address change
Shweta Choudaha [Wed, 8 Jun 2016 19:15:43 +0000 (20:15 +0100)]
ip6gre: Allow live link address change

The ip6 GRE tap device should not be forced to down state to change
the mac address and should allow live address change for tap device
similar to ipv4 gre.

Signed-off-by: Shweta Choudaha <schoudah@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'cls_u32-hwoffload-fixes'
David S. Miller [Thu, 9 Jun 2016 04:43:15 +0000 (21:43 -0700)]
Merge branch 'cls_u32-hwoffload-fixes'

Jakub Kicinski says:

====================
incremental cls_u32 hardware offload fixes

These are incremental changes from v1 of cls_u32 fixes.
First patch is reposted in its entirety, patch 2 is an
incremental change from patch 2 of the original series.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: cls_u32: be more strict about skip-sw flag for knodes
Jakub Kicinski [Wed, 8 Jun 2016 19:11:04 +0000 (20:11 +0100)]
net: cls_u32: be more strict about skip-sw flag for knodes

Return an error if user requested skip-sw and the underlaying
hardware cannot handle tc offloads (or offloads are disabled).
This patch fixes the knode handling.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: cls_u32: catch all hardware offload errors
Jakub Kicinski [Wed, 8 Jun 2016 19:11:03 +0000 (20:11 +0100)]
net: cls_u32: catch all hardware offload errors

Errors reported by u32_replace_hw_hnode() were not propagated.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge tag 'drm-vc4-fixes-2016-06-06' of github.com:anholt/linux into drm-fixes
Dave Airlie [Thu, 9 Jun 2016 02:32:09 +0000 (12:32 +1000)]
Merge tag 'drm-vc4-fixes-2016-06-06' of github.com:anholt/linux into drm-fixes

This pull request brings in vblank/pageflip fixes I had hoped to see
merged before 4.7rc1, plus two new fixes that have come in since then.

* tag 'drm-vc4-fixes-2016-06-06' of github.com:anholt/linux:
  drm/vc4: Make pageflip completion handling more robust.
  drm/vc4: Fix ioctl permissions for render nodes.
  drm/vc4: Return -EBUSY if there's already a pending flip event.
  drm/vc4: Fix drm_vblank_put/get imbalance in page flip path.
  drm/vc4: Fix get_vblank_counter with proper no-op for Linux 4.4+

8 years agodrm/omap: fix unused variable warning in dsi & hdmi
Tomi Valkeinen [Fri, 3 Jun 2016 11:27:03 +0000 (14:27 +0300)]
drm/omap: fix unused variable warning in dsi & hdmi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
8 years agoMerge branch 'linux-4.7' of git://github.com/skeggsb/linux into drm-fixes
Dave Airlie [Thu, 9 Jun 2016 02:30:29 +0000 (12:30 +1000)]
Merge branch 'linux-4.7' of git://github.com/skeggsb/linux into drm-fixes

Fixes for two issues reported by KASAN, a display engine hang due to
incorrect BIOS table parsing, and incorrect LTC interrupt handling on
Maxwell which could lead to a never-ending interrupt storm.

* 'linux-4.7' of git://github.com/skeggsb/linux:
  drm/nouveau/disp/sor/gm107: training pattern registers are like gm200
  drm/nouveau/disp/sor/gf119: both links use the same training register
  drm/nouveau/core: swap the order of imem/fb
  drm/nouveau/fbcon: fix out-of-bounds memory accesses
  drm/nouveau/gr/gf100-: update sm error decoding from gk20a nvgpu headers
  drm/nouveau/ltc/gm107-: fix typo in the address of NV_PLTCG_LTC0_LTS0_INTR
  drm/nouveau/bios/disp: fix handling of "match any protocol" entries

8 years agodrm/fsl-dcu: use flat regmap cache
Stefan Agner [Fri, 3 Jun 2016 21:21:34 +0000 (14:21 -0700)]
drm/fsl-dcu: use flat regmap cache

Using flat regmap cache instead of RB-tree to avoid the following
lockdep warning on driver load:
WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x15c/0x160()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))

The RB-tree regmap cache needs to allocate new space on first
writes. However, allocations in an atomic context (e.g. when a
spinlock is held) are not allowed. The function regmap_write
calls map->lock, which acquires a spinlock in the fast_io case.
Since the FSL DCU driver uses MMIO, the regmap bus of type
regmap_mmio is being used which has fast_io set to true.

Use flat regmap cache and specify max register to be large
enouth to cover all registers available in LS1021a and Vybrids
register space.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Cc: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
8 years agosfc: report supported link speeds on SFP connections
Bert Kenward [Mon, 6 Jun 2016 16:29:30 +0000 (17:29 +0100)]
sfc: report supported link speeds on SFP connections

7000-series SFC NICs connected with an SFP+ module currently fail to
report any supported link speeds.

Reported-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Tested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet_sched: add missing paddattr description
Eric Dumazet [Wed, 8 Jun 2016 13:19:45 +0000 (06:19 -0700)]
net_sched: add missing paddattr description

"make htmldocs" complains otherwise:

.//net/core/gen_stats.c:65: warning: No description found for parameter 'padattr'
.//net/core/gen_stats.c:101: warning: No description found for parameter 'padattr'

Fixes: 9854518ea04d ("sched: align nlattr properly when needed")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>