Pull objtool fixes from Ingo Molnar:
 "A handful of objtool fixes: two improvements to how warnings are
  printed plus a false positive warning fix, and build environment fix"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix Makefile to properly see if libelf is supported
  objtool: Detect falling through to the next function
  objtool: Add workaround for GCC switch jump table bug

Pull USB / PHY driver fixes from Greg KH:
 "Here are two small sets of patches, both from subsystem trees, USB
  gadget and PHY drivers.

  Full details are in the shortlog, and they have all been in linux-next
  for a while (before I merged them to the USB tree)"

* tag 'usb-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: gadget: f_fs: Fix use-after-free
  usb: dwc3: gadget: Fix suspend/resume during device mode
  usb: dwc3: fix memory leak of dwc->regset
  usb: dwc3: core: fix PHY handling during suspend
  usb: dwc3: omap: fix up error path on probe()
  usb: gadget: composite: Clear reserved fields of SSP Dev Cap
  phy: rockchip-emmc: adapt binding to specifiy register offset and length
  phy: rockchip-emmc: should be a child device of the GRF
  phy: rockchip-dp: should be a child device of the GRF

Pull serial fixes from Greg KH:
 "Here are 3 serial driver fixes for issues that have been reported.

  Two are reverts, fixing problems that were in the big TTY/Serial
  driver merge in 4.6-rc1, and the last one is a simple bugfix for a
  regression that showed up in 4.6-rc1 as well.

  All have been in linux-next with no reported issues"

* tag 'tty-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "serial: 8250: Add hardware dependency to RT288X option"
  tty/serial/8250: fix RS485 half-duplex RX
  Revert "serial-uartlite: Constify uartlite_be/uartlite_le"

Pull input subsystem fixes from Dmitry Torokhov:
 "Just minor driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: twl4030-vibra - do not reparent to grandparent
  Input: twl6040-vibra - do not reparent to grandparent
  Input: twl6040-vibra - ignore return value of schedule_work
  Input: twl6040-vibra - fix NULL pointer dereference by removing workqueue
  Input: pmic8xxx-pwrkey - fix algorithm for converting trigger delay
  Input: arizona-haptic - don't assign input_dev parent
  Input: clarify we want BTN_TOOL_<name> on proximity
  Input: xpad - add Mad Catz FightStick TE 2 VID/PID
  Input: gtco - fix crash on detecting device without endpoints

Pull pin control fixes from Linus Walleij:
 "Some pin control driver fixes came in.  One headed for stable and the
  other two are just ordinary merge window fixes.

   - Make the i.MX driver select REGMAP as a dependency
   - Fix up the Mediatek debounce time unit
   - Fix a real hairy ffs vs __ffs issue in the Single pinctrl driver"

* tag 'pinctrl-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: single: Fix pcs_parse_bits_in_pinctrl_entry to use __ffs than ffs
  pinctrl: mediatek: correct debounce time unit in mtk_gpio_set_debounce
  pinctrl: imx: Kconfig: PINCTRL_IMX select REGMAP

Pull arm64 fixes from Catalin Marinas:

 - Cache invalidation fix for early CPU boot status update (incorrect
   cacheline)

 - of_put_node() missing in the spin_table code

 - EL1/El2 early init inconsistency when Virtualisation Host Extensions
   are present

 - RCU warning fix in the arm_pmu.c driver

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix EL1/EL2 early init inconsistencies with VHE
  drivers/perf: arm-pmu: fix RCU usage on pmu resume from low-power
  arm64: spin-table: add missing of_node_put()
  arm64: fix invalidation of wrong __early_cpu_boot_status cacheline

Pull powerpc fixes from Michael Ellerman:
 "Three powerpc cpu feature fixes from Anton Blanchard:

   - scan_features() updated incorrect bits for REAL_LE

   - update cpu_user_features2 in scan_features()

   - update TM user feature bits in scan_features()"

* tag 'powerpc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc: Update TM user feature bits in scan_features()
  powerpc: Update cpu_user_features2 in scan_features()
  powerpc: scan_features() updates incorrect bits for REAL_LE

Pull IOMMU fixes from Joerg Roedel:
 "The fixes include:

   - Two patches to revert the use of default domains in the ARM SMMU
     driver.  Enabling this caused regressions which need more thorough
     fixing.  So the regressions are fixed for now by disabling the use
     of default domains.

   - A fix for a v4.4 regression in the AMD IOMMU driver which broke
     devices behind invisible PCIe-to-PCI bridges with IOMMU enabled"

* tag 'iommu-fixes-v4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/arm-smmu: Don't allocate resources for bypass domains
  iommu/arm-smmu: Fix stream-match conflict with IOMMU_DOMAIN_DMA
  iommu/amd: Fix checking of pci dma aliases

Pull drm fixes from Dave Airlie:
 "i915, nouveau and amdgpu/radeon fixes in this:

  nouveau:
     Two fixes, one for a regression with dithering and one for a bug
     hit by the userspace drivers.

  i915:
     A few fixes, mostly things heading for stable, two important
     skylake GT3/4 hangs.

  radeon/amdgpu:
     Some audio, suspend/resume and some runtime PM fixes, along with
     two patches to harden the userptr ABI a bit"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (24 commits)
  drm: Loongson-3 doesn't fully support wc memory
  drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries
  amdgpu/uvd: add uvd fw version for amdgpu
  drm/amdgpu: forbid mapping of userptr bo through radeon device file
  drm/radeon: forbid mapping of userptr bo through radeon device file
  drm/amdgpu: bump the afmt limit for CZ, ST, Polaris
  drm/amdgpu: use defines for CRTCs and AMFT blocks
  drm/dp/mst: Validate port in drm_dp_payload_send_msg()
  drm/nouveau/kms: fix setting of default values for dithering properties
  drm/radeon: print a message if ATPX dGPU power control is missing
  Revert "drm/radeon: disable runtime pm on PX laptops without dGPU power control"
  drm/amdgpu/acp: fix resume on CZ systems with AZ audio
  drm/radeon: add a quirk for a XFX R9 270X
  drm/radeon: print pci revision as well as pci ids on driver load
  drm/i915: Use fw_domains_put_with_fifo() on HSW
  drm/i915: Force ringbuffers to not be at offset 0
  drm/i915: Adjust size of PIPE_CONTROL used for gen8 render seqno write
  drm/i915/skl: Fix spurious gpu hang with gt3/gt4 revs
  drm/i915/skl: Fix rc6 based gpu/system hang
  drm/i915/userptr: Hold mmref whilst calling get-user-pages
  ...

Pull sound fixes from Takashi Iwai:
 "Again a relatively calm week without surprise: most of fixes are about
  HD-audio, including fixes for Cirrus codec regression and a race over
  regmap access.  Although both change are slightly unintuitive, the
  risk of further breakage is quite low, I hope.

  Other than that, all the rest are trivial"

* tag 'sound-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix possible race on regmap bypass flip
  ALSA: pcxhr: Fix missing mutex unlock
  ALSA: hda - add PCI ID for Intel Broxton-T
  ALSA: hda - Keep powering up ADCs on Cirrus codecs
  ALSA: hda/realtek - Add ALC3234 headset mode for Optiplex 9020m
  ALSA - hda: hdmi check NULL pointer in hdmi_set_chmap
  ALSA: hda - Don't trust the reported actual power state

Merge tag 'phy-for-4.6-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

phy: for 4.6-rc

*) make rockchip-dp and rockchip-emmc PHY child device of
   GRF
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

Merge tag 'fixes-for-v4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.6-rc5

No more major fixes left. Out of the 6 fixes we have
here, 4 are on dwc3.

The most important is the memory leak fix in
dwc3/debugfs.c. We also have a fix for PHY handling
in suspend/resume and a fix for dwc3-omap's error
handling.

Suspend/resume also had the potential to trigger a
NULL pointer dereference on dwc3; that's also fixed
now.

Our good ol' ffs function gets a use-after-free fix
while the generic composite.c layer has a robustness
fix by making sure reserved fields of a possible SSP
device capability descriptor is cleared to 0.

When doing a make allmodconfig, I hit the following compile error:

  In file included from builtin-check.c:32:0:
  elf.h:22:18: fatal error: gelf.h: No such file or directory
  compilation terminated.
  ...

Digging into it, it appears that the $(shell ..) command in the Makefile does
not give the proper result when it fails to find -lelf, and continues to
compile objtool.

Instead, use the "try-run" makefile macro to perform the test. This gives a
proper result for both cases.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Chris J Arges <chris.j.arges@canonical.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: live-patching@vger.kernel.org
Fixes: 442f04c3 ("objtool: Add tool to perform compile-time stack metadata validation")
Link: http://lkml.kernel.org/r/20160420153234.GA24032@home.goodmis.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

Misc radeon and amdgpu bug fixes for 4.6.

* 'drm-fixes-4.6' of git://people.freedesktop.org/~agd5f/linux:
  amdgpu/uvd: add uvd fw version for amdgpu
  drm/amdgpu: forbid mapping of userptr bo through radeon device file
  drm/radeon: forbid mapping of userptr bo through radeon device file
  drm/amdgpu: bump the afmt limit for CZ, ST, Polaris
  drm/amdgpu: use defines for CRTCs and AMFT blocks
  drm/radeon: print a message if ATPX dGPU power control is missing
  Revert "drm/radeon: disable runtime pm on PX laptops without dGPU power control"
  drm/amdgpu/acp: fix resume on CZ systems with AZ audio
  drm/radeon: add a quirk for a XFX R9 270X
  drm/radeon: print pci revision as well as pci ids on driver load
  drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work.
  drm/radeon: fix initial connector audio value

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

transform feedback fix.

* 'linux-4.6' of git://github.com/skeggsb/linux:
  drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org

Was previously always hardcoded to 0.
Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Allowing userptr bo which are basicly a list of page from some vma
(so either anonymous page or file backed page) would lead to serious
corruption of kernel structures and counters (because we overwrite
the page->mapping field when mapping buffer).

This will already block if the buffer was populated before anyone does
try to mmap it because then TTM_PAGE_FLAG_SG would be set in in the
ttm_tt flags. But that flag is check before ttm_tt_populate in the ttm
vm fault handler.

So to be safe just add a check to verify_access() callback.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Allowing userptr bo which are basicly a list of page from some vma
(so either anonymous page or file backed page) would lead to serious
corruption of kernel structures and counters (because we overwrite
the page->mapping field when mapping buffer).

This will already block if the buffer was populated before anyone does
try to mmap it because then TTM_PAGE_FLAG_SG would be set in in the
ttm_tt flags. But that flag is check before ttm_tt_populate in the ttm
vm fault handler.

So to be safe just add a check to verify_access() callback.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes array overflow on these chips.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Prerequiste for the next patch which ups the limits.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

With the joys of things running concurrently, there's always a chance
that the port we get passed in drm_dp_payload_send_msg() isn't actually
valid anymore. Because of this, we need to make sure we validate the
reference to the port before we use it otherwise we risk running into
various race conditions. For instance, on the Dell MST monitor I have
here for testing, hotplugging it enough times causes us to kernel panic:

[drm:intel_mst_enable_dp] 1
[drm:drm_dp_update_payload_part2] payload 0 1
[drm:intel_get_hpd_pins] hotplug event received, stat 0x00200000, dig 0x10101011, pins 0x00000020
[drm:intel_hpd_irq_handler] digital hpd port B - short
[drm:intel_dp_hpd_pulse] got hpd irq on port B - short
[drm:intel_dp_check_mst_status] got esi 00 10 00
[drm:drm_dp_update_payload_part2] payload 1 1
general protection fault: 0000 [#1] SMP
…
Call Trace:
 [<ffffffffa012b632>] drm_dp_update_payload_part2+0xc2/0x130 [drm_kms_helper]
 [<ffffffffa032ef08>] intel_mst_enable_dp+0xf8/0x180 [i915]
 [<ffffffffa0310dbd>] haswell_crtc_enable+0x3ed/0x8c0 [i915]
 [<ffffffffa030c84d>] intel_atomic_commit+0x5ad/0x1590 [i915]
 [<ffffffffa01db877>] ? drm_atomic_set_crtc_for_connector+0x57/0xe0 [drm]
 [<ffffffffa01dc4e7>] drm_atomic_commit+0x37/0x60 [drm]
 [<ffffffffa0130a3a>] drm_atomic_helper_set_config+0x7a/0xb0 [drm_kms_helper]
 [<ffffffffa01cc482>] drm_mode_set_config_internal+0x62/0x100 [drm]
 [<ffffffffa01d02ad>] drm_mode_setcrtc+0x3cd/0x4e0 [drm]
 [<ffffffffa01c18e3>] drm_ioctl+0x143/0x510 [drm]
 [<ffffffffa01cfee0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
 [<ffffffff810f79a7>] ? hrtimer_start_range_ns+0x1b7/0x3a0
 [<ffffffff81212962>] do_vfs_ioctl+0x92/0x570
 [<ffffffff81590852>] ? __sys_recvmsg+0x42/0x80
 [<ffffffff81212eb9>] SyS_ioctl+0x79/0x90
 [<ffffffff816b4e32>] entry_SYSCALL_64_fastpath+0x1a/0xa4
RIP  [<ffffffffa012b026>] drm_dp_payload_send_msg+0x146/0x1f0 [drm_kms_helper]

Which occurs because of the hotplug event shown in the log, which ends
up causing DRM's dp helpers to drop the port we're updating the payload
on and panic.

CC: stable@vger.kernel.org
Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: David Airlie <airlied@linux.ie>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Single nouveau regression fix
* 'linux-4.6' of git://github.com/skeggsb/linux:
  drm/nouveau/kms: fix setting of default values for dithering properties

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Hi Dave, fixes all around, all but one are cc: stable material, the most
important ones are likely the Skylake hang fixes from Mika.

* tag 'drm-intel-fixes-2016-04-21' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Use fw_domains_put_with_fifo() on HSW
  drm/i915: Force ringbuffers to not be at offset 0
  drm/i915: Adjust size of PIPE_CONTROL used for gen8 render seqno write
  drm/i915/skl: Fix spurious gpu hang with gt3/gt4 revs
  drm/i915/skl: Fix rc6 based gpu/system hang
  drm/i915/userptr: Hold mmref whilst calling get-user-pages
  drm/i915: Fixup the free space logic in ring_prepare
  drm/i915/skl+: Use plane size for relative data rate calculation

Pull RTC fixes from Alexandre Belloni:
 "A few fixes for the RTC subsystem.  The documentation fix already
  missed 4.5 so I think it is worth taking it now:

  A documentation fix for s3c and two fixes for the ds1307"

* tag 'rtc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: ds1307: Use irq when available for wakeup-source device
  rtc: ds1307: ds3231 temperature s16 overflow
  rtc: s3c: Document in binding that only s3c6410 needs a src clk

Pull power management fixes from Rafael Wysocki:
 "Two fixes for issues introduced recently, one for an intel_pstate
  driver problem uncovered by the recent switch over from using timers
  and the other one for a potential cpufreq core problem related to
  system suspend/resume.

  Specifics:

   - Fix an intel_pstate driver problem causing CPUs to get stuck in the
     highest P-state when completely idle uncovered by the recent switch
     over from using timers (Rafael Wysocki).

   - Avoid attempts to get the current CPU frequency when all devices
     (like I2C controllers that may be nedded for that purpose) have
     been suspended during system suspend/resume (Rafael Wysocki)"

* tag 'pm+acpi-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: Abort cpufreq_update_current_freq() for cpufreq_suspended set
  intel_pstate: Avoid getting stuck in high P-states when idle

With commit 8bc2a407 ("rtc: ds1307: add support for the
DT property 'wakeup-source'") we lost the ability for rtc irq
functionality for devices that are actually hooked on a real IRQ
line and have capability to wakeup as well. This is not an expected
behavior. So, instead of just not requesting IRQ, skip the IRQ
requirement only if interrupts are not defined for the device.

Fixes: 8bc2a407 ("rtc: ds1307: add support for the DT property 'wakeup-source'")
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Michael Lange <linuxstuff@milaw.biz>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

while retrieving temperature from ds3231, the result may be overflow
since s16 is too small for a multiplication with 250.

ie. if temp_buf[0] == 0x2d, the result (s16 temp) will be negative.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Tested-by: Michael Tatarinov <kukabu@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Pull networking fixes from David Miller:

 1) Fix memory leak in iwlwifi, from Matti Gottlieb.

 2) Add missing registration of netfilter arp_tables into initial
    namespace, from Florian Westphal.

 3) Fix potential NULL deref in DecNET routing code.

 4) Restrict NETLINK_URELEASE to truly bound sockets only, from Dmitry
    Ivanov.

 5) Fix dst ref counting in VRF, from David Ahern.

 6) Fix TSO segmenting limits in i40e driver, from Alexander Duyck.

 7) Fix heap leak in PACKET_DIAG_MCLIST, from Mathias Krause.

 8) Ravalidate IPV6 datagram socket cached routes properly, particularly
    with UDP, from Martin KaFai Lau.

 9) Fix endian bug in RDS dp_ack_seq handling, from Qing Huang.

10) Fix stats typing in bcmgenet driver, from Eric Dumazet.

11) Openvswitch needs to orphan SKBs before ipv6 fragmentation handing,
    from Joe Stringer.

12) SPI device reference leak in spi_ks8895 PHY driver, from Mark Brown.

13) atl2 doesn't actually support scatter-gather, so don't advertise the
    feature.  From Ben Hucthings.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (72 commits)
  openvswitch: use flow protocol when recalculating ipv6 checksums
  Driver: Vmxnet3: set CHECKSUM_UNNECESSARY for IPv6 packets
  atl2: Disable unimplemented scatter/gather feature
  net/mlx4_en: Split SW RX dropped counter per RX ring
  net/mlx4_core: Don't allow to VF change global pause settings
  net/mlx4_core: Avoid repeated calls to pci enable/disable
  net/mlx4_core: Implement pci_resume callback
  net: phy: spi_ks8895: Don't leak references to SPI devices
  net: ethernet: davinci_emac: Fix platform_data overwrite
  net: ethernet: davinci_emac: Fix Unbalanced pm_runtime_enable
  qede: Fix single MTU sized packet from firmware GRO flow
  qede: Fix setting Skb network header
  qede: Fix various memory allocation error flows for fastpath
  tcp: Merge tx_flags and tskey in tcp_shifted_skb
  tcp: Merge tx_flags and tskey in tcp_collapse_retrans
  drivers: net: cpsw: fix wrong regs access in cpsw_ndo_open
  tcp: Fix SOF_TIMESTAMPING_TX_ACK when handling dup acks
  openvswitch: Orphan skbs before IPv6 defrag
  Revert "Prevent NUll pointer dereference with two PHYs on cpsw"
  VSOCK: Only check error on skb_recv_datagram when skb is NULL
  ...

When using masked actions the ipv6_proto field of an action
to set IPv6 fields may be zero rather than the prevailing protocol
which will result in skipping checksum recalculation.

This patch resolves the problem by relying on the protocol
in the flow key rather than that in the set field action.

Fixes: 83d2b9ba ("net: openvswitch: Support masked set actions.")
Cc: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

For IPv6, if the device indicates that the checksum is correct, set
CHECKSUM_UNNECESSARY.
Reported-by: Subbarao Narahari <snarahari@vmware.com>
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>

atl2 includes NETIF_F_SG in hw_features even though it has no support
for non-linear skbs.  This bug was originally harmless since the
driver does not claim to implement checksum offload and that used to
be a requirement for SG.

Now that SG and checksum offload are independent features, if you
explicitly enable SG *and* use one of the rare protocols that can use
SG without checkusm offload, this potentially leaks sensitive
information (before you notice that it just isn't working).  Therefore
this obscure bug has been designated CVE-2016-2117.
Reported-by: Justin Yackoski <jyackoski@crypto-nite.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: ec5f0615 ("net: Kill link between CSUM and SG features.")
Signed-off-by: David S. Miller <davem@davemloft.net>

Or Gerlitz says:

====================
Mellaox 40G driver fixes for 4.6-rc

With the fix for ARM bug being under the works, these are
few other fixes for mlx4 we have ready to go.

Eran addressed the problematic/wrong reporting of dropped packets, Daniel
fixed some matters related to PPC EEH's and Jenny's patch makes sure
VFs can't change the port's pause settings.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Count SW packet drops per RX ring instead of a global counter. This
will allow monitoring the number of rx drops per ring.

In addition, SW rx_dropped counter was overwritten by HW rx_dropped
counter, sum both of them instead to show the accurate value.

Fixes: a3333b35 ('net/mlx4_en: Moderate ethtool callback to [...] ')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reported-by: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently changing global pause settings is done via SET_PORT
command with input modifier GENERAL. This command is allowed
for each VF since MTU setting is done via the same command.

Change the above to the following scheme: before passing the
request to the FW, the PF will check whether it was issued
by a slave. If yes, don't change global pause and warn,
otherwise change to the requested value and store for
further reference.
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Maintain the PCI status and provide wrappers for enabling and disabling
the PCI device.  Performing the actions more than once without doing
its opposite results in warning logs.

This occurred when EEH hotplugged the device causing a warning for
disabling an already disabled device.

Fixes: 2ba5fbd6 ('net/mlx4_core: Handle AER flow properly')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Move resume related activities to a new pci_resume function instead of
performing them in mlx4_pci_slot_reset.  This change is needed to avoid
a hotplug during EEH recovery due to commit f2da4ccf ("powerpc/eeh:
More relaxed hotplug criterion").

Fixes: 2ba5fbd6 ('net/mlx4_core: Handle AER flow properly')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The ks8895 driver is using spi_dev_get() apparently just to take a copy
of the SPI device used to instantiate it but never calls spi_dev_put()
to free it.  Since the device is guaranteed to exist between probe() and
remove() there should be no need for the driver to take an extra
reference to it so fix the leak by just using a straight assignment.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>