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402,438 commits

Author SHA1 Message Date
Linus Torvalds
64dd76559d Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Thomas Gleixner:
 "Two fixlets for the EFI maze:

   - Properly zero variables to prevent an early boot hang on EFI mixed
     mode systems

   - Fix the fallout of merging the 32bit and 64bit variants of EFI PCI
     related code which ended up chosing the 32bit variant of the actual
     EFi call invocation which leads to failures on 64bit"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/x86: Fix incorrect invocation of PciIo->Attributes()
  efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode
2018-06-24 20:16:17 +08:00
Linus Torvalds
6242258b6b Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
 "A small set of fixes for time(r) related issues:

   - Fix a long standing conversion issue in jiffies_to_msecs() for odd
     HZ values like 1024 or 1200 which resulted in returning 0 for small
     jiffies values due to rounding down.

   - Use the proper CONFIG symbol in the new Y2038 safe compat code for
     posix-timers. Not yet a visible breakage, but this will immediately
     trigger when the architecture support for the new interfaces is
     merged.

   - Return an error code in the STM32 clocksource driver on failure
     instead of success.

   - Remove the redundant and stale irq disabled check in the posix cpu
     timer code. The check is at the wrong place anyway and lockdep
     already covers it via the sighand lock locking coverage"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time: Make sure jiffies_to_msecs() preserves non-zero time periods
  posix-timers: Fix nanosleep_copyout() for CONFIG_COMPAT_32BIT_TIME
  clocksource/drivers/stm32: Fix error return code
  posix-cpu-timers: Remove lockdep_assert_irqs_disabled()
2018-06-24 19:16:42 +08:00
Linus Torvalds
78fea6334f Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A set of fixes mostly for the ARM/GIC world:

   - Fix the MSI affinity handling in the ls-scfg irq chip driver so it
     updates and uses the effective affinity mask correctly

   - Prevent binding LPIs to offline CPUs and respect the Cavium erratum
     which requires that LPIs which belong to an offline NUMA node are
     not bound to a CPU on a different NUMA node.

   - Free only the amount of allocated interrupts in the GIC-V2M driver
     instead of trying to free log2(nrirqs).

   - Prevent emitting SYNC and VSYNC targetting non existing interrupt
     collections in the GIC-V3 ITS driver

   - Ensure that the GIV-V3 interrupt redistributor is correctly
     reprogrammed on CPU hotplug

   - Remove a stale unused helper function"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqdesc: Delete irq_desc_get_msi_desc()
  irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug
  irqchip/gic-v3-its: Only emit VSYNC if targetting a valid collection
  irqchip/gic-v3-its: Only emit SYNC if targetting a valid collection
  irqchip/gic-v3-its: Don't bind LPI to unavailable NUMA node
  irqchip/gic-v2m: Fix SPI release on error path
  irqchip/ls-scfg-msi: Fix MSI affinity handling
  genirq/debugfs: Add missing IRQCHIP_SUPPORTS_LEVEL_MSI debug
2018-06-24 19:01:18 +08:00
Linus Torvalds
77072ca59f for-linus-20180623
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Merge tag 'for-linus-20180623' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Further timeout fixes. We aren't quite there yet, so expect another
   round of fixes for that to completely close some of the IRQ vs
   completion races. (Christoph/Bart)

 - Set of NVMe fixes from the usual suspects, mostly error handling

 - Two off-by-one fixes (Dan)

 - Another bdi race fix (Jan)

 - Fix nbd reconfigure with NBD_DISCONNECT_ON_CLOSE (Doron)

* tag 'for-linus-20180623' of git://git.kernel.dk/linux-block:
  blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE
  bdi: Fix another oops in wb_workfn()
  lightnvm: Remove depends on HAS_DMA in case of platform dependency
  nvme-pci: limit max IO size and segments to avoid high order allocations
  nvme-pci: move nvme_kill_queues to nvme_remove_dead_ctrl
  nvme-fc: release io queues to allow fast fail
  nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag.
  block: sed-opal: Fix a couple off by one bugs
  blk-mq-debugfs: Off by one in blk_mq_rq_state_name()
  nvmet: reset keep alive timer in controller enable
  nvme-rdma: don't override opts->queue_size
  nvme-rdma: Fix command completion race at error recovery
  nvme-rdma: fix possible free of a non-allocated async event buffer
  nvme-rdma: fix possible double free condition when failing to create a controller
  Revert "block: Add warning for bi_next not NULL in bio_endio()"
  block: fix timeout changes for legacy request drivers
2018-06-24 06:33:54 +08:00
Linus Torvalds
2dd3f7c904 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:

 - Fix use after free in chtls

 - Fix RBP breakage in sha3

 - Fix use after free in hwrng_unregister

 - Fix overread in morus640

 - Move sleep out of kernel_neon in arm64/aes-blk

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: core - Always drop the RNG in hwrng_unregister()
  crypto: morus640 - Fix out-of-bounds access
  crypto: don't optimize keccakf()
  crypto: arm64/aes-blk - fix and move skcipher_walk_done out of kernel_neon_begin, _end
  crypto: chtls - use after free in chtls_pt_recvmsg()
2018-06-24 06:31:54 +08:00
Linus Torvalds
4ab59fcfd5 xen: fixes for 4.18-rc2
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Merge tag 'for-linus-4.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "This contains the following fixes/cleanups:

   - the removal of a BUG_ON() which wasn't necessary and which could
     trigger now due to a recent change

   - a correction of a long standing bug happening very rarely in Xen
     dom0 when a hypercall buffer from user land was not accessible by
     the hypervisor for very short periods of time due to e.g. page
     migration or compaction

   - usage of EXPORT_SYMBOL_GPL() instead of EXPORT_SYMBOL() in a
     Xen-related driver (no breakage possible as using those symbols
     without others already exported via EXPORT-SYMBOL_GPL() wouldn't
     make any sense)

   - a simplification for Xen PVH or Xen ARM guests

   - some additional error handling for callers of xenbus_printf()"

* tag 'for-linus-4.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: Remove unnecessary BUG_ON from __unbind_from_irq()
  xen: add new hypercall buffer mapping device
  xen/scsiback: add error handling for xenbus_printf
  scsi: xen-scsifront: add error handling for xenbus_printf
  xen/grant-table: Export gnttab_{alloc|free}_pages as GPL
  xen: add error handling for xenbus_printf
  xen: share start flags between PV and PVH
2018-06-23 20:44:11 +08:00
Geert Uytterhoeven
0ae52ddf5b lightnvm: Remove depends on HAS_DMA in case of platform dependency
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-06-22 12:07:11 -06:00
Jens Axboe
f9da9d0786 Merge branch 'nvme-4.18' of git://git.infradead.org/nvme into for-linus
Pull NVMe fixes from Christoph:

"Various relatively small fixes, mostly to fix error handling of various
 sorts."

* 'nvme-4.18' of git://git.infradead.org/nvme:
  nvme-pci: limit max IO size and segments to avoid high order allocations
  nvme-pci: move nvme_kill_queues to nvme_remove_dead_ctrl
  nvme-fc: release io queues to allow fast fail
  nvmet: reset keep alive timer in controller enable
  nvme-rdma: don't override opts->queue_size
  nvme-rdma: Fix command completion race at error recovery
  nvme-rdma: fix possible free of a non-allocated async event buffer
  nvme-rdma: fix possible double free condition when failing to create a controller
2018-06-22 08:45:29 -06:00
Marc Zyngier
82f499c881 irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug
Enabling LPIs was made a lot stricter recently, by checking that they are
disabled before enabling them. By doing so, the CPU hotplug case was missed
altogether, which leaves LPIs enabled on hotplug off (expecting the CPU to
eventually come back), and won't write a different value anyway on hotplug
on.

So skip that check if that particular case is detected

Fixes: 6eb486b66a ("irqchip/gic-v3: Ensure GICR_CTLR.EnableLPI=0 is observed before enabling")
Reported-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lkml.kernel.org/r/20180622095254.5906-8-marc.zyngier@arm.com
2018-06-22 14:22:02 +02:00
Marc Zyngier
205e065d91 irqchip/gic-v3-its: Only emit VSYNC if targetting a valid collection
Similarily to the SYNC operation, it must be verified that the VPE
targetted by a VLPI is backed by a valid collection in the GIC driver data
structures.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-7-marc.zyngier@arm.com
2018-06-22 14:22:01 +02:00
Marc Zyngier
83559b47cd irqchip/gic-v3-its: Only emit SYNC if targetting a valid collection
It is possible, under obscure circumstances, to convince the ITS driver to
emit a SYNC operation that targets a collection that is not bound to any
redistributor (and the target_address field is zero) because the
corresponding CPU has not been seen yet (the system has been booted with
max_cpus="something small").

If the ITS is using the linear CPU number as the target, this is not a big
deal, as we just end-up issuing a SYNC to CPU0. But if the ITS requires the
physical address of the redistributor (with GITS_TYPER.PTA==1), we end-up
asking the ITS to write to the physical address zero, which is not exactly
a good idea (there has been report of the ITS locking up). This should of
course never happen, but hey, this is SW...

In order to avoid the above disaster, let's track which collections have
been actually initialized, and let's not generate a SYNC if the collection
hasn't been properly bound to a redistributor.  Take this opportunity to
spit our a warning, in the hope that someone may report the issue if it
arrises again.

Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-6-marc.zyngier@arm.com
2018-06-22 14:22:01 +02:00
Yang Yingliang
c1797b11a0 irqchip/gic-v3-its: Don't bind LPI to unavailable NUMA node
On a NUMA system, if an ITS is local to an offline node, the ITS driver may
pick an offline CPU to bind the LPI.  In this case, pick an online CPU (and
the first one will do).

But on some systems, binding an LPI to non-local node CPU may cause
deadlock (see Cavium erratum 23144).  In this case, just fail the activate
and return an error code.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180622095254.5906-5-marc.zyngier@arm.com
2018-06-22 14:22:01 +02:00
Marc Zyngier
cbaf45a6be irqchip/gic-v2m: Fix SPI release on error path
On failing to allocate the required SPIs, the actual number of interrupts
should be freed and not its log2 value.

Fixes: de337ee301 ("irqchip/gic-v2m: Add PCI Multi-MSI support")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-4-marc.zyngier@arm.com
2018-06-22 14:22:00 +02:00
Marc Zyngier
893fbfff97 irqchip/ls-scfg-msi: Fix MSI affinity handling
The ls-scfs-msi driver is not dealing with the effective affinity
as it should. Let's fix that, and make it clear that the effective
affinity is restricted to a single CPU. Also prevent the driver from
messing with the internals of the affinity setting infrastructure.

Reported-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-3-marc.zyngier@arm.com
2018-06-22 14:22:00 +02:00
Hans de Goede
52e1cf2d19 efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode
Commit:

  79832f0b5f ("efi/libstub/tpm: Initialize pointer variables to zero for mixed mode")

fixes a problem with the tpm code on mixed mode (64-bit kernel on 32-bit UEFI),
where 64-bit pointer variables are not fully initialized by the 32-bit EFI code.

A similar problem applies to the efi_physical_addr_t variables which
are written by the ->get_event_log() EFI call. Even though efi_physical_addr_t
is 64-bit everywhere, it seems that some 32-bit UEFI implementations only
fill in the lower 32 bits when passed a pointer to an efi_physical_addr_t
to fill.

This commit initializes these to 0 to, to ensure the upper 32 bits are
0 in mixed mode. This fixes recent kernels sometimes hanging during
early boot on mixed mode UEFI systems.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org> # v4.16+
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20180622064222.11633-2-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-06-22 10:58:27 +02:00
Boris Ostrovsky
eef04c7b37 xen: Remove unnecessary BUG_ON from __unbind_from_irq()
Commit 910f8befdf ("xen/pirq: fix error path cleanup when binding
MSIs") fixed a couple of errors in error cleanup path of
xen_bind_pirq_msi_to_irq(). This cleanup allowed a call to
__unbind_from_irq() with an unbound irq, which would result in
triggering the BUG_ON there.

Since there is really no reason for the BUG_ON (xen_free_irq() can
operate on unbound irqs) we can remove it.

Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2018-06-22 08:32:52 +02:00
Juergen Gross
c51b3c639e xen: add new hypercall buffer mapping device
For passing arbitrary data from user land to the Xen hypervisor the
Xen tools today are using mlock()ed buffers. Unfortunately the kernel
might change access rights of such buffers for brief periods of time
e.g. for page migration or compaction, leading to access faults in the
hypervisor, as the hypervisor can't use the locks of the kernel.

In order to solve this problem add a new device node to the Xen privcmd
driver to easily allocate hypercall buffers via mmap(). The memory is
allocated in the kernel and just mapped into user space. Marked as
VM_IO the user mapping will not be subject to page migration et al.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2018-06-22 08:26:42 +02:00
Linus Torvalds
1cfea546b1 amd, i915, qxl, nouveau, sun4i, atmel, and bridge fixes.
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Merge tag 'drm-fixes-2018-06-22' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Just run of the mill fixes,

  core:
   - regression fix in device unplug

  qxl:
   - regression fix for might sleep in cursor handling

  nouveau:
   - regression fix in multi-screen cursor handling

  amdgpu:
   - switch off DC by default on Kaveri and older
   - some minor fixes

  i915:
   - some GEM regression fixes
   - doublescan mode fixes

  sun4i:
   - revert fix for a regression

  sii8620 bridge:
   - misc fixes"

* tag 'drm-fixes-2018-06-22' of git://anongit.freedesktop.org/drm/drm: (28 commits)
  drm/bridge/sii8620: fix display of packed pixel modes in MHL2
  drm/amdgpu: Make amdgpu_vram_mgr_bo_invisible_size always accurate
  drm/amdgpu: Refactor amdgpu_vram_mgr_bo_invisible_size helper
  drm/amdgpu: Update pin_size values before unpinning BO
  drm/amdgpu:All UVD instances share one idle_work handle
  drm/amdgpu: Don't default to DC support for Kaveri and older
  drm/amdgpu: Use kvmalloc_array for allocating VRAM manager nodes array
  drm/amd/pp: Fix uninitialized variable
  drm/i915: Enable provoking vertex fix on Gen9 systems.
  drm/i915: Fix context ban and hang accounting for client
  drm/i915: Turn off g4x DP port in .post_disable()
  drm/i915: Disallow interlaced modes on g4x DP outputs
  drm/i915: Fix PIPESTAT irq ack on i965/g4x
  drm/i915: Allow DBLSCAN user modes with eDP/LVDS/DSI
  drm/i915/execlists: Avoid putting the error pointer
  drm/i915: Apply batch location restrictions before pinning
  drm/nouveau/kms/nv50-: cursors always use core channel vram ctxdma
  Revert "drm/sun4i: Handle DRM_BUS_FLAG_PIXDATA_*EDGE"
  drm/atmel-hlcdc: check stride values in the first plane
  drm/bridge/sii8620: fix HDMI cable connection to dongle
  ...
2018-06-22 12:32:09 +09:00
Dave Airlie
f3294568bb Fixes for v4.18-rc2:
- A reversion of a commit in drm/sun4i to fix a run-time fault.
 - Various fixes to the sii8620 bridge.
 - Small bugfix to correctly check stride in atmel-hlcdc.
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Merge tag 'drm-misc-fixes-2018-06-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Fixes for v4.18-rc2:
- A reversion of a commit in drm/sun4i to fix a run-time fault.
- Various fixes to the sii8620 bridge.
- Small bugfix to correctly check stride in atmel-hlcdc.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/787d4bef-a579-4046-d0fc-f8c2c5b80c25@linux.intel.com
2018-06-22 11:03:43 +10:00
Dave Airlie
8325e6e36c drm/i915 fixes for v4.18-rc2:
- Mostly cc: stable display fixes, including a DBLSCAN regression fix
 - GEM fixes for this merge window
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Merge tag 'drm-intel-fixes-2018-06-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v4.18-rc2:
- Mostly cc: stable display fixes, including a DBLSCAN regression fix
- GEM fixes for this merge window

Signed-off-by: Dave Airlie <airlied@redhat.com>

Link: https://patchwork.freedesktop.org/patch/msgid/87d0wkuypy.fsf@intel.com
2018-06-22 09:56:30 +10:00
Linus Torvalds
acdf3f93b6 Fixes for v4.18:
- Fix a serious kernel panic on the Mediatek driver with
   the external interrupt controller.
 
 - Fix an uninitialized compiler warning in the owl
   (actions) driver.
 
 - Allocation failure in the pinctrl-single driver.
 
 - Pointer overwrite problem in the i.MX driver.
 
 - Fix a small compiler warning.
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Merge tag 'pinctrl-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Some fallout in the pin control subsystem in the first week after the
  merge window, some minor fixes so I'd like to get it to you ASAP.

   - fix a serious kernel panic on the Mediatek driver with the external
     interrupt controller.

   - fix an uninitialized compiler warning in the owl (actions) driver.

   - allocation failure in the pinctrl-single driver.

   - pointer overwrite problem in the i.MX driver.

   - fix a small compiler warning"

* tag 'pinctrl-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: mt7622: fix a kernel panic when pio don't work as EINT controller
  pinctrl: actions: Fix uninitialized error in owl_pin_config_set()
  pinctrl: single: Add allocation failure checking of saved_vals
  pinctrl: devicetree: Fix pctldev pointer overwrite
  pinctrl: mediatek: remove redundant return value check of platform_get_resource()
2018-06-22 06:08:56 +09:00
Linus Torvalds
303f311eb4 hwmon fixes for v4.18-rc2
- Fix a loop limit in nct6775 driver
 - Disable fan support for Dell XPS13 9333
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Merge tag 'hwmon-for-linus-v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - fix a loop limit in nct6775 driver

 - disable fan support for Dell XPS13 9333

* tag 'hwmon-for-linus-v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6775) Fix loop limit
  hwmon: (dell-smm) Disable fan support for Dell XPS13 9333
2018-06-22 06:05:03 +09:00
Linus Torvalds
f43fc5a0c1 ACPI fixes for 4.18-rc2
- Fix a suspend/resume regression in the ACPI driver for Intel SoCs
    (LPSS) to make it work on systems where some power management
    quirks should only be applied for runtime PM and suspend-to-idle
    and not for suspend-to-RAM (Rafael Wysocki).
 
  - Add a system wakeup quirk for Thinkpad X1 Carbon 6th to the ACPI
    EC driver to avoid drainig battery too fast while suspended to
    idle on those systems (Mika Westerberg).
 
  - Fix an inline stub of acpi_processor_ppc_has_changed() to match
    the original function definition (Brian Norris).
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Merge tag 'acpi-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix a suspend/resume regression in the ACPI driver for Intel
  SoCs (LPSS), add a new system wakeup quirk to the ACPI EC driver and
  fix an inline stub of a function in the ACPI processor driver that
  diverged from the original.

  Specifics:

   - Fix a suspend/resume regression in the ACPI driver for Intel SoCs
     (LPSS) to make it work on systems where some power management
     quirks should only be applied for runtime PM and suspend-to-idle
     and not for suspend-to-RAM (Rafael Wysocki).

   - Add a system wakeup quirk for Thinkpad X1 Carbon 6th to the ACPI EC
     driver to avoid drainig battery too fast while suspended to idle on
     those systems (Mika Westerberg).

   - Fix an inline stub of acpi_processor_ppc_has_changed() to match the
     original function definition (Brian Norris)"

* tag 'acpi-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / processor: Finish making acpi_processor_ppc_has_changed() void
  ACPI / EC: Use ec_no_wakeup on Thinkpad X1 Carbon 6th
  ACPI / LPSS: Avoid PM quirks on suspend and resume from S3
2018-06-22 06:00:13 +09:00
Linus Torvalds
26c92a38ce Power management changes for 4.18-rc2
- Fix the PM core to avoid introducing a runtime PM usage counter
    imbalance when adding device links during driver probe (Rafael
    Wysocki).
 
  - Fix the operating performance points (OPP) framework to ensure
    that the regulator voltage is always updated as appropriate when
    updating clock rates (Waldemar Rymarkiewicz).
 
  - Fix the intel_pstate driver to use correct max/min limits for
    cores with differing maximum frequences (Srinivas Pandruvada).
 
  - Fix a typo in the intel_pstate driver documentation (Rafael
    Wysocki).
 
  - Fix two issues with the recently added Kryo cpufreq driver (Ilia
    Lin).
 
  - Fix two recent regressions and some other minor issues in the
    turbostat utility and extend it to provide some more diagnostic
    information (Len Brown, Nathan Ciobanu).
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Merge tag 'pm-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These are mostly fixes, including some fixes for changes made during
  the recent merge window and some "stable" material, plus some minor
  extensions of the turbostat utility.

  Specifics:

   - Fix the PM core to avoid introducing a runtime PM usage counter
     imbalance when adding device links during driver probe (Rafael
     Wysocki).

   - Fix the operating performance points (OPP) framework to ensure that
     the regulator voltage is always updated as appropriate when
     updating clock rates (Waldemar Rymarkiewicz).

   - Fix the intel_pstate driver to use correct max/min limits for cores
     with differing maximum frequences (Srinivas Pandruvada).

   - Fix a typo in the intel_pstate driver documentation (Rafael
     Wysocki).

   - Fix two issues with the recently added Kryo cpufreq driver (Ilia
     Lin).

   - Fix two recent regressions and some other minor issues in the
     turbostat utility and extend it to provide some more diagnostic
     information (Len Brown, Nathan Ciobanu)"

* tag 'pm-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Documentation: intel_pstate: Fix typo
  tools/power turbostat: version 18.06.20
  tools/power turbostat: add the missing command line switches
  tools/power turbostat: add single character tokens to help
  tools/power turbostat: alphabetize the help output
  tools/power turbostat: fix segfault on 'no node' machines
  tools/power turbostat: add optional APIC X2APIC columns
  tools/power turbostat: decode cpuid.1.HT
  tools/power turbostat: fix show/hide issues resulting from mis-merge
  PM / OPP: Update voltage in case freq == old_freq
  cpufreq: intel_pstate: Fix scaling max/min limits with Turbo 3.0
  cpufreq: kryo: Add module remove and exit
  cpufreq: kryo: Fix possible error code dereference
  PM / core: Fix supplier device runtime PM usage counter imbalance
2018-06-22 05:57:36 +09:00
Jens Axboe
943e942e62 nvme-pci: limit max IO size and segments to avoid high order allocations
nvme requires an sg table allocation for each request. If the request
is large, then the allocation can become quite large. For instance,
with our default software settings of 1280KB IO size, we'll need
10248 bytes of sg table. That turns into a 2nd order allocation,
which we can't always guarantee. If we fail the allocation, blk-mq
will retry it later. But there's no guarantee that we'll EVER be
able to allocate that much contigious memory.

Limit the IO size such that we never need more than a single page
of memory. That's a lot faster and more reliable. Then back that
allocation with a mempool, so that we know we'll always be able
to succeed the allocation at some point.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-21 18:59:46 +02:00
Jianchao Wang
9f9cafc140 nvme-pci: move nvme_kill_queues to nvme_remove_dead_ctrl
There is race between nvme_remove and nvme_reset_work that can
lead to io hang.

nvme_remove                    nvme_reset_work
                               -> nvme_remove_dead_ctrl
                                 -> nvme_dev_disable
                                   -> quiesce request_queue
                                 -> queue remove_work
-> cancel_work_sync reset_work
-> nvme_remove_namespaces
  -> splice ctrl->namespaces
                               nvme_remove_dead_ctrl_work
                               -> nvme_kill_queues
  -> nvme_ns_remove               do nothing
    -> blk_cleanup_queue
      -> blk_freeze_queue

Finally, the request_queue is quiesced state when wait freeze,
we will get io hang here. To fix it, move the nvme_kill_queues
from nvme_remove_dead_ctrl_work to nvme_remove_dead_ctrl.

Suggested-by: Keith Busch <keith.busch@linux.intel.com>
Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-21 16:59:42 +02:00
Rafael J. Wysocki
e50f182c90 Merge branches 'acpi-soc' and 'acpi-processor'
These are a stable-candidate suspend/resume fix of the ACPI driver for
Intel SoCs (LPSS) and an inline stub fix for the ACPI processor driver.

* acpi-soc:
  ACPI / LPSS: Avoid PM quirks on suspend and resume from S3

* acpi-processor:
  ACPI / processor: Finish making acpi_processor_ppc_has_changed() void
2018-06-21 14:19:08 +02:00
Rafael J. Wysocki
7553a72bb1 Merge branches 'pm-core' and 'pm-opp'
These are a PM core fix and an OPP framework fix for 4.18-rc2,
both "stable" material.

* pm-core:
  PM / core: Fix supplier device runtime PM usage counter imbalance

* pm-opp:
  PM / OPP: Update voltage in case freq == old_freq
2018-06-21 14:14:31 +02:00
Maciej Purski
e8b92efa62 drm/bridge/sii8620: fix display of packed pixel modes in MHL2
Currently packed pixel modes in MHL2 can't be displayed. The device
automatically recognizes output format, so setting format other than
RGB causes failure. Fix it by writing proper values to registers.

Tested on MHL1 and MHL2 using various vendors' dongles both in
DVI and HDMI mode.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1516706239-9104-1-git-send-email-m.purski@samsung.com
2018-06-21 10:16:24 +02:00
James Smart
02d62a8bc4 nvme-fc: release io queues to allow fast fail
Rather than leaving io queues quiesced after tearing down an association,
restart them. This allows ios to be replayed, with fastfail ios terminating
and non-fastfail getting into loops of retry.

This follows rdma's lead.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Sagi Grimberg <sagi@grimber.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-21 09:31:28 +02:00
Doron Roberts-Kedes
08ba91ee6e nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag.
If NBD_DISCONNECT_ON_CLOSE is set on a device, then the driver will
issue a disconnect from nbd_release if the device has no remaining
bdev->bd_openers.

Fix ret val so reconfigure with only setting the flag succeeds.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-06-20 19:10:06 -06:00
Dave Airlie
ae0c730672 Merge branch 'drm-fixes-4.18' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Bunch of amdgpu fixes mostly all going to stable.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180620190021.2775-1-alexander.deucher@amd.com
2018-06-21 10:13:12 +10:00
Linus Torvalds
1abd8a8f39 4.18-rc
Regression and crashing bug fixes:
 
 - mlx4/5: Fixes for issues found from various checkers
 - A resource tracking and uverbs regression in the core code
 - qedr: NULL pointer regression found during testing
 - rxe: Various small bugs
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Here are eight fairly small fixes collected over the last two weeks.

  Regression and crashing bug fixes:

   - mlx4/5: Fixes for issues found from various checkers

   - A resource tracking and uverbs regression in the core code

   - qedr: NULL pointer regression found during testing

   - rxe: Various small bugs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  IB/rxe: Fix missing completion for mem_reg work requests
  RDMA/core: Save kernel caller name when creating CQ using ib_create_cq()
  IB/uverbs: Fix ordering of ucontext check in ib_uverbs_write
  IB/mlx4: Fix an error handling path in 'mlx4_ib_rereg_user_mr()'
  RDMA/qedr: Fix NULL pointer dereference when running over iWARP without RDMA-CM
  IB/mlx5: Fix return value check in flow_counters_set_data()
  IB/mlx5: Fix memory leak in mlx5_ib_create_flow
  IB/rxe: avoid double kfree skb
2018-06-21 07:22:30 +09:00
Linus Torvalds
d8894a08d9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix crash on bpf_prog_load() errors, from Daniel Borkmann.

 2) Fix ATM VCC memory accounting, from David Woodhouse.

 3) fib6_info objects need RCU freeing, from Eric Dumazet.

 4) Fix SO_BINDTODEVICE handling for TCP sockets, from David Ahern.

 5) Fix clobbered error code in enic_open() failure path, from
    Govindarajulu Varadarajan.

 6) Propagate dev_get_valid_name() error returns properly, from Li
    RongQing.

 7) Fix suspend/resume in davinci_emac driver, from Bartosz Golaszewski.

 8) Various act_ife fixes (recursive locking, IDR leaks, etc.) from
    Davide Caratti.

 9) Fix buggy checksum handling in sungem driver, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
  ip: limit use of gso_size to udp
  stmmac: fix DMA channel hang in half-duplex mode
  net: stmmac: socfpga: add additional ocp reset line for Stratix10
  net: sungem: fix rx checksum support
  bpfilter: ignore binary files
  bpfilter: fix build error
  net/usb/drivers: Remove useless hrtimer_active check
  net/sched: act_ife: preserve the action control in case of error
  net/sched: act_ife: fix recursive lock and idr leak
  net: ethernet: fix suspend/resume in davinci_emac
  net: propagate dev_get_valid_name return code
  enic: do not overwrite error code
  net/tcp: Fix socket lookups with SO_BINDTODEVICE
  ptp: replace getnstimeofday64() with ktime_get_real_ts64()
  net/ipv6: respect rcu grace period before freeing fib6_info
  net: net_failover: fix typo in net_failover_slave_register()
  ipvlan: use ETH_MAX_MTU as max mtu
  net: hamradio: use eth_broadcast_addr
  enic: initialize enic->rfs_h.lock in enic_probe
  MAINTAINERS: Add Sam as the maintainer for NCSI
  ...
2018-06-21 07:13:42 +09:00
Max Gurtuvoy
d68a90e148 nvmet: reset keep alive timer in controller enable
Controllers that are not yet enabled should not really enforce keep alive
timeouts, but we still want to track a timeout and cleanup in case a host
died before it enabled the controller.  Hence, simply reset the keep
alive timer when the controller is enabled.

Suggested-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-20 14:20:51 +02:00
Sagi Grimberg
5e77d61cbc nvme-rdma: don't override opts->queue_size
That is user argument, and theoretically controller limits can change
over time (over reconnects/resets).  Instead, use the sqsize controller
attribute to check queue depth boundaries and use it to the tagset
allocation.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-20 14:20:51 +02:00
Israel Rukshin
c947657b15 nvme-rdma: Fix command completion race at error recovery
The race is between completing the request at error recovery work and
rdma completions.  If we cancel the request before getting the good
rdma completion we get a NULL deref of the request MR at
nvme_rdma_process_nvme_rsp().

When Canceling the request we return its mr to the mr pool (set mr to
NULL) and also unmap its data.  Canceling the requests while the rdma
queues are active is not safe.  Because rdma queues are active and we
get good rdma completions that can use the mr pointer which may be NULL.
Completing the request too soon may lead also to performing DMA to/from
user buffers which might have been already unmapped.

The commit fixes the race by draining the QP before starting the abort
commands mechanism.

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-20 14:20:51 +02:00
Sagi Grimberg
94e42213cc nvme-rdma: fix possible free of a non-allocated async event buffer
If nvme_rdma_configure_admin_queue fails before we allocated
the async event buffer, we will falsly free it because
nvme_rdma_free_queue is freeing it. Fix it by allocating the buffer right
after nvme_rdma_alloc_queue and free it right before nvme_rdma_queue_free
to maintain orderly reverse cleanup sequence.

Reported-by: Israel Rukshin <israelr@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-20 14:20:28 +02:00
Sagi Grimberg
3d0641015b nvme-rdma: fix possible double free condition when failing to create a controller
Failures after nvme_init_ctrl will defer resource cleanups to .free_ctrl
when the reference is released, hence we should not free the controller
queues for these failures.

Fix that by moving controller queues allocation before controller
initialization and correctly freeing them for failures before
initialization and skip them for failures after initialization.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-20 14:20:10 +02:00
Linus Torvalds
81e97f0137 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:

 - Wacom 2nd-gen Intuos Pro large Y axis handling fix from Jason Gerecke

 - fix for hibernation in Intel ISH driver, from Even Xu

 - crash fix for hid-steam driver, from Rodrigo Rivas Costa

 - new device ID addition to google-hammer driver

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: wacom: Correct logical maximum Y for 2nd-gen Intuos Pro large
  HID: intel_ish-hid: ipc: register more pm callbacks to support hibernation
  HID: steam: use hid_device.driver_data instead of hid_set_drvdata()
  HID: google: Add support for whiskers
2018-06-20 16:42:39 +09:00
Linus Torvalds
6d90eb7ba3 Move all the dma-mapping code to kernel/dma
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Merge tag 'dma-rename-4.18' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping rename from Christoph Hellwig:
 "Move all the dma-mapping code to kernel/dma and lose their dma-*
  prefixes"

* tag 'dma-rename-4.18' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: move all DMA mapping code to kernel/dma
  dma-mapping: use obj-y instead of lib-y for generic dma ops
2018-06-20 16:30:01 +09:00
Jason Gerecke
d471b6b22d HID: wacom: Correct logical maximum Y for 2nd-gen Intuos Pro large
The HID descriptor for the 2nd-gen Intuos Pro large (PTH-860) contains
a typo which defines an incorrect logical maximum Y value. This causes
a small portion of the bottom of the tablet to become unusable (both
because the area is below the "bottom" of the tablet and because
'wacom_wac_event' ignores out-of-range values). It also results in a
skewed aspect ratio.

To fix this, we add a quirk to 'wacom_usage_mapping' which overwrites
the data with the correct value.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
CC: stable@vger.kernel.org # v4.10+
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-06-20 09:27:23 +02:00
Even Xu
ebeaa36754 HID: intel_ish-hid: ipc: register more pm callbacks to support hibernation
Current ISH driver only registers suspend/resume PM callbacks which don't
support hibernation (suspend to disk). Basically after hiberation, the ISH
can't resume properly and user may not see sensor events (for example: screen
		rotation may not work).

User will not see a crash or panic or anything except the following message
in log:

	hid-sensor-hub 001F:8086:22D8.0001: timeout waiting for response from ISHTP device

So this patch adds support for S4/hiberbation to ISH by using the
SIMPLE_DEV_PM_OPS() MACRO instead of struct dev_pm_ops directly. The suspend
and resume functions will now be used for both suspend to RAM and hibernation.

If power management is disabled, SIMPLE_DEV_PM_OPS will do nothing, the suspend
and resume related functions won't be used, so mark them as __maybe_unused to
clarify that this is the intended behavior, and remove #ifdefs for power
management.

Cc: stable@vger.kernel.org
Signed-off-by: Even Xu <even.xu@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-06-20 09:27:23 +02:00
Rodrigo Rivas Costa
4bff980f92 HID: steam: use hid_device.driver_data instead of hid_set_drvdata()
When creating the low-level hidraw device, the reference to steam_device
was stored using hid_set_drvdata(). But this value is not guaranteed to
be kept when set before calling probe. If this pointer is reset, it
crashes when opening the emulated hidraw device.

It looks like hid_set_drvdata() is for users "avobe" this hid_device,
while hid_device.driver_data it for users "below" this one.

In this case, we are creating a virtual hidraw device, so we must use
hid_device.driver_data.

Signed-off-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Tested-by: Mariusz Ceier <mceier+kernel@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-06-20 09:27:23 +02:00
Dave Airlie
47fbf82b5a Only a small qxl fix that was queued for v4.17.
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Merge tag 'drm-misc-fixes-2018-06-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Only a small qxl fix that was queued for v4.17.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/08dcbd63-ed18-6232-7bbd-547a3d63b90f@linux.intel.com
2018-06-20 16:58:49 +10:00
Dave Airlie
4216c1b9af Single fix for v4.18:
- Fix possible race conditions while unplugging DRM device.
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Merge tag 'drm-misc-next-fixes-2018-06-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Single fix for v4.18:
- Fix possible race conditions while unplugging DRM device.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1fd8b7d1-e60a-0105-dfb5-d36f99ea0239@linux.intel.com
2018-06-20 16:58:31 +10:00
Dave Airlie
845876a086 Merge branch 'linux-4.18' of git://github.com/skeggsb/linux into drm-fixes
Single nouveau regression fix.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv5VDDKaYKJShyVAGK0MJAHMZOJ02FKQ_aW5DnBCNVgRUw@mail.gmail.com
2018-06-20 16:57:09 +10:00
Bhadram Varka
b6cfffa7ad stmmac: fix DMA channel hang in half-duplex mode
HW does not support Half-duplex mode in multi-queue
scenario. Fix it by not advertising the Half-Duplex
mode if multi-queue enabled.

Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 14:35:20 +09:00
Dinh Nguyen
bc8a2d9bcb net: stmmac: socfpga: add additional ocp reset line for Stratix10
The Stratix10 platform has an additional reset line, OCP(Open Core Protocol),
that also needs to get deasserted for the stmmac ethernet controller to work.
Thus we need to update the Kconfig to include ARCH_STRATIX10 in order to build
dwmac-socfpga.

Also, remove the redundant check for the reset controller pointer. The
reset driver already checks for the pointer and returns 0 if the pointer
is NULL.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 14:34:26 +09:00
Eric Dumazet
12b03558ce net: sungem: fix rx checksum support
After commit 88078d98d1 ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE
are friends"), sungem owners reported the infamous "eth0: hw csum failure"
message.

CHECKSUM_COMPLETE has in fact never worked for this driver, but this
was masked by the fact that upper stacks had to strip the FCS, and
therefore skb->ip_summed was set back to CHECKSUM_NONE before
my recent change.

Driver configures a number of bytes to skip when the chip computes
the checksum, and for some reason only half of the Ethernet header
was skipped.

Then a second problem is that we should strip the FCS by default,
unless the driver is updated to eventually support NETIF_F_RXFCS in
the future.

Finally, a driver should check if NETIF_F_RXCSUM feature is enabled
or not, so that the admin can turn off rx checksum if wanted.

Many thanks to Andreas Schwab and Mathieu Malaterre for their
help in debugging this issue.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Meelis Roos <mroos@linux.ee>
Reported-by: Mathieu Malaterre <malat@debian.org>
Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Tested-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 14:30:06 +09:00