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387,024 commits

Author SHA1 Message Date
Linus Torvalds
297ea1b7f7 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull cleanup patchlet from Thomas Gleixner:
 "A single commit removing a bunch of bogus double semicolons all over
  the tree"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  treewide/trivial: Remove ';;$' typo noise
2018-02-25 16:27:51 -08:00
Linus Torvalds
3664ce2d93 powerpc fixes for 4.16 #4
Add handling for a missing instruction in our 32-bit BPF JIT so that it can be
 used for seccomp filtering.
 
 Add a missing NULL pointer check before a function call in new EEH code.
 
 Fix an error path in the new ocxl driver to correctly return EFAULT.
 
 The support for the new ibm,drc-info device tree property turns out to need
 several fixes, so for now we just stop advertising to firmware that we support
 it until the bugs can be ironed out.
 
 One fix for the new drmem code which was incorrectly modifying the device tree
 in place.
 
 Finally two fixes for the RFI flush support, so that firmware can advertise to
 us that it should be disabled entirely so as not to affect performance.
 
 Thanks to:
   Bharata B Rao, Frederic Barrat, Juan J. Alvarez, Mark Lord, Michael Bringmann.
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Merge tag 'powerpc-4.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Add handling for a missing instruction in our 32-bit BPF JIT so that
   it can be used for seccomp filtering.

 - Add a missing NULL pointer check before a function call in new EEH
   code.

 - Fix an error path in the new ocxl driver to correctly return EFAULT.

 - The support for the new ibm,drc-info device tree property turns out
   to need several fixes, so for now we just stop advertising to
   firmware that we support it until the bugs can be ironed out.

 - One fix for the new drmem code which was incorrectly modifying the
   device tree in place.

 - Finally two fixes for the RFI flush support, so that firmware can
   advertise to us that it should be disabled entirely so as not to
   affect performance.

Thanks to: Bharata B Rao, Frederic Barrat, Juan J. Alvarez, Mark Lord,
Michael Bringmann.

* tag 'powerpc-4.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: Support firmware disable of RFI flush
  powerpc/pseries: Support firmware disable of RFI flush
  powerpc/mm/drmem: Fix unexpected flag value in ibm,dynamic-memory-v2
  powerpc/bpf/jit: Fix 32-bit JIT for seccomp_data access
  powerpc/pseries: Revert support for ibm,drc-info devtree property
  powerpc/pseries: Fix duplicate firmware feature for DRC_INFO
  ocxl: Fix potential bad errno on irq allocation
  powerpc/eeh: Fix crashes in eeh_report_resume()
2018-02-24 16:05:50 -08:00
Linus Torvalds
9cb9c07d6b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix TTL offset calculation in mac80211 mesh code, from Peter Oh.

 2) Fix races with procfs in ipt_CLUSTERIP, from Cong Wang.

 3) Memory leak fix in lpm_trie BPF map code, from Yonghong Song.

 4) Need to use GFP_ATOMIC in BPF cpumap allocations, from Jason Wang.

 5) Fix potential deadlocks in netfilter getsockopt() code paths, from
    Paolo Abeni.

 6) Netfilter stackpointer size checks really are needed to validate
    user input, from Florian Westphal.

 7) Missing timer init in x_tables, from Paolo Abeni.

 8) Don't use WQ_MEM_RECLAIM in mac80211 hwsim, from Johannes Berg.

 9) When an ibmvnic device is brought down then back up again, it can be
    sent queue entries from a previous session, handle this properly
    instead of crashing. From Thomas Falcon.

10) Fix TCP checksum on LRO buffers in mlx5e, from Gal Pressman.

11) When we are dumping filters in cls_api, the output SKB is empty, and
    the filter we are dumping is too large for the space in the SKB, we
    should return -EMSGSIZE like other netlink dump operations do.
    Otherwise userland has no signal that is needs to increase the size
    of its read buffer. From Roman Kapl.

12) Several XDP fixes for virtio_net, from Jesper Dangaard Brouer.

13) Module refcount leak in netlink when a dump start fails, from Jason
    Donenfeld.

14) Handle sub-optimal GSO sizes better in TCP BBR congestion control,
    from Eric Dumazet.

15) Releasing bpf per-cpu arraymaps can take a long time, add a
    condtional scheduling point. From Eric Dumazet.

16) Implement retpolines for tail calls in x64 and arm64 bpf JITs. From
    Daniel Borkmann.

17) Fix page leak in gianfar driver, from Andy Spencer.

18) Missed clearing of estimator scratch buffer, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
  net_sched: gen_estimator: fix broken estimators based on percpu stats
  gianfar: simplify FCS handling and fix memory leak
  ipv6 sit: work around bogus gcc-8 -Wrestrict warning
  macvlan: fix use-after-free in macvlan_common_newlink()
  bpf, arm64: fix out of bounds access in tail call
  bpf, x64: implement retpoline for tail call
  rxrpc: Fix send in rxrpc_send_data_packet()
  net: aquantia: Fix error handling in aq_pci_probe()
  bpf: fix rcu lockdep warning for lpm_trie map_free callback
  bpf: add schedule points in percpu arrays management
  regulatory: add NUL to request alpha2
  ibmvnic: Fix early release of login buffer
  net/smc9194: Remove bogus CONFIG_MAC reference
  net: ipv4: Set addr_type in hash_keys for forwarded case
  tcp_bbr: better deal with suboptimal GSO
  smsc75xx: fix smsc75xx_set_features()
  netlink: put module reference if dump start fails
  selftests/bpf/test_maps: exit child process without error in ENOMEM case
  selftests/bpf: update gitignore with test_libbpf_open
  selftests/bpf: tcpbpf_kern: use in6_* macros from glibc
  ..
2018-02-23 15:14:17 -08:00
Linus Torvalds
65738c6b46 arm64 fixes:
- Compilation error when accessing MPIDR_HWID_BITMASK from .S
 
 - CTR_EL0 field definitions
 
 - Remove/disable some kernel messages on user faults (unhandled signals,
   unimplemented syscalls)
 
 - Kernel page fault in unwind_frame() with function graph tracing
 
 - perf sleeping while atomic errors when booting with ACPI
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 "arm64 and perf fixes:

   - build error when accessing MPIDR_HWID_BITMASK from .S

   - fix CTR_EL0 field definitions

   - remove/disable some kernel messages on user faults (unhandled
     signals, unimplemented syscalls)

   - fix kernel page fault in unwind_frame() with function graph tracing

   - fix perf sleeping while atomic errors when booting with ACPI"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: fix unwind_frame() for filtered out fn for function graph tracing
  arm64: Enforce BBM for huge IO/VMAP mappings
  arm64: perf: correct PMUVer probing
  arm_pmu: acpi: request IRQs up-front
  arm_pmu: note IRQs and PMUs per-cpu
  arm_pmu: explicitly enable/disable SPIs at hotplug
  arm_pmu: acpi: check for mismatched PPIs
  arm_pmu: add armpmu_alloc_atomic()
  arm_pmu: fold platform helpers into platform code
  arm_pmu: kill arm_pmu_platdata
  ARM: ux500: remove PMU IRQ bouncer
  arm64: __show_regs: Only resolve kernel symbols when running at EL1
  arm64: Remove unimplemented syscall log message
  arm64: Disable unhandled signal log messages by default
  arm64: cpufeature: Fix CTR_EL0 field definitions
  arm64: uaccess: Formalise types for access_ok()
  arm64: Fix compilation error while accessing MPIDR_HWID_BITMASK from .S files
2018-02-23 15:01:01 -08:00
Linus Torvalds
938e1426e2 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two bugfixes, one v4.16 regression fix, and two documentation fixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: designware: Consider SCL GPIO optional
  i2c: busses: i2c-sirf: Fix spelling: "formular" -> "formula".
  i2c: bcm2835: Set up the rising/falling edge delays
  i2c: i801: Add missing documentation entries for Braswell and Kaby Lake
  i2c: designware: must wait for enable
2018-02-23 14:41:14 -08:00
Linus Torvalds
170e07bf6b SCSI fixes on 20180222
These are mostly fixes for problems with merge window code.  In
 addition we have one doc update (alua) and two dead code removals
 (aiclib and octogon) a spurious assignment removal (csiostor) and a
 performance improvement for storvsc involving better interrupt
 spreading and increasing the command per lun handling.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "These are mostly fixes for problems with merge window code.

  In addition we have one doc update (alua) and two dead code removals
  (aiclib and octogon) a spurious assignment removal (csiostor) and a
  performance improvement for storvsc involving better interrupt
  spreading and increasing the command per lun handling"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla4xxx: skip error recovery in case of register disconnect.
  scsi: aacraid: fix shutdown crash when init fails
  scsi: qedi: Cleanup local str variable
  scsi: qedi: Fix truncation of CHAP name and secret
  scsi: qla2xxx: Fix incorrect handle for abort IOCB
  scsi: qla2xxx: Fix double free bug after firmware timeout
  scsi: storvsc: Increase cmd_per_lun for higher speed devices
  scsi: qla2xxx: Fix a locking imbalance in qlt_24xx_handle_els()
  scsi: scsi_dh: Document alua_rtpg_queue() arguments
  scsi: Remove Makefile entry for oktagon files
  scsi: aic7xxx: remove aiclib.c
  scsi: qla2xxx: Avoid triggering undefined behavior in qla2x00_mbx_completion()
  scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
  scsi: sym53c8xx_2: iterator underflow in sym_getsync()
  scsi: bnx2fc: Fix check in SCSI completion handler for timed out request
  scsi: csiostor: remove redundant assignment to pointer 'ln'
  scsi: ufs: Enable quirk to ignore sending WRITE_SAME command
  scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info
  scsi: qla2xxx: Fix memory corruption during hba reset test
  scsi: mpt3sas: fix an out of bound write
2018-02-23 14:09:43 -08:00
Linus Torvalds
8961ca441b exynos, meson, ipuv3, secondary gpu, cirrus, edid quirk fixes
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Merge tag 'drm-fixes-for-v4.16-rc3' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of fixes for rc3:

  Exynos:
   - fixes for using monotonic timestamps
   - register definitions
   - removal of unused file

  ipu-v3L
   - minor changes
   - make some register arrays const+static
   - fix some leaks

  meson:
   - fix for vsync

  atomic:
   - fix for memory leak

  EDID parser:
   - add quirks for some more non-desktop devices
   - 6-bit panel fix.

  drm_mm:
   - fix a bug in the core drm mm hole handling

  cirrus:
   - fix lut loading regression

  Lastly there is a deadlock fix around runtime suspend for secondary
  GPUs.

  There was a deadlock between one thread trying to wait for a workqueue
  job to finish in the runtime suspend path, and the workqueue job it
  was waiting for in turn waiting for a runtime_get_sync to return.

  The fixes avoids it by not doing the runtime sync in the workqueue as
  then we always wait for all those tasks to complete before we runtime
  suspend"

* tag 'drm-fixes-for-v4.16-rc3' of git://people.freedesktop.org/~airlied/linux: (25 commits)
  drm/tve200: fix kernel-doc documentation comment include
  drm/edid: quirk Sony PlayStation VR headset as non-desktop
  drm/edid: quirk Windows Mixed Reality headsets as non-desktop
  drm/edid: quirk Oculus Rift headsets as non-desktop
  drm/meson: fix vsync buffer update
  drm: Handle unexpected holes in color-eviction
  drm: exynos: Use proper macro definition for HDMI_I2S_PIN_SEL_1
  drm/exynos: remove exynos_drm_rotator.h
  drm/exynos: g2d: Delete an error message for a failed memory allocation in two functions
  drm/exynos: fix comparison to bitshift when dealing with a mask
  drm/exynos: g2d: use monotonic timestamps
  drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
  gpu: ipu-csi: add 10/12-bit grayscale support to mbus_code_to_bus_cfg
  gpu: ipu-cpmem: add 16-bit grayscale support to ipu_cpmem_set_image
  gpu: ipu-v3: prg: fix device node leak in ipu_prg_lookup_by_phandle
  gpu: ipu-v3: pre: fix device node leak in ipu_pre_lookup_by_phandle
  drm/amdgpu: Fix deadlock on runtime suspend
  drm/radeon: Fix deadlock on runtime suspend
  drm/nouveau: Fix deadlock on runtime suspend
  drm: Allow determining if current task is output poll worker
  ...
2018-02-23 10:31:31 -08:00
Andy Spencer
d903ec7711 gianfar: simplify FCS handling and fix memory leak
Previously, buffer descriptors containing only the frame check sequence
(FCS) were skipped and not added to the skb. However, the page reference
count was still incremented, leading to a memory leak.

Fixing this inside gfar_add_rx_frag() is difficult due to reserved
memory handling and page reuse. Instead, move the FCS handling to
gfar_process_frame() and trim off the FCS before passing the skb up the
networking stack.

Signed-off-by: Andy Spencer <aspencer@spacex.com>
Signed-off-by: Jim Gruen <jgruen@spacex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-23 12:26:36 -05:00
Alexey Kodanev
4e14bf4236 macvlan: fix use-after-free in macvlan_common_newlink()
The following use-after-free was reported by KASan when running
LTP macvtap01 test on 4.16-rc2:

[10642.528443] BUG: KASAN: use-after-free in
               macvlan_common_newlink+0x12ef/0x14a0 [macvlan]
[10642.626607] Read of size 8 at addr ffff880ba49f2100 by task ip/18450
...
[10642.963873] Call Trace:
[10642.994352]  dump_stack+0x5c/0x7c
[10643.035325]  print_address_description+0x75/0x290
[10643.092938]  kasan_report+0x28d/0x390
[10643.137971]  ? macvlan_common_newlink+0x12ef/0x14a0 [macvlan]
[10643.207963]  macvlan_common_newlink+0x12ef/0x14a0 [macvlan]
[10643.275978]  macvtap_newlink+0x171/0x260 [macvtap]
[10643.334532]  rtnl_newlink+0xd4f/0x1300
...
[10646.256176] Allocated by task 18450:
[10646.299964]  kasan_kmalloc+0xa6/0xd0
[10646.343746]  kmem_cache_alloc_trace+0xf1/0x210
[10646.397826]  macvlan_common_newlink+0x6de/0x14a0 [macvlan]
[10646.464386]  macvtap_newlink+0x171/0x260 [macvtap]
[10646.522728]  rtnl_newlink+0xd4f/0x1300
...
[10647.022028] Freed by task 18450:
[10647.061549]  __kasan_slab_free+0x138/0x180
[10647.111468]  kfree+0x9e/0x1c0
[10647.147869]  macvlan_port_destroy+0x3db/0x650 [macvlan]
[10647.211411]  rollback_registered_many+0x5b9/0xb10
[10647.268715]  rollback_registered+0xd9/0x190
[10647.319675]  register_netdevice+0x8eb/0xc70
[10647.370635]  macvlan_common_newlink+0xe58/0x14a0 [macvlan]
[10647.437195]  macvtap_newlink+0x171/0x260 [macvtap]

Commit d02fd6e7d2 ("macvlan: Fix one possible double free") handles
the case when register_netdevice() invokes ndo_uninit() on error and
as a result free the port. But 'macvlan_port_get_rtnl(dev))' check
(returns dev->rx_handler_data), which was added by this commit in order
to prevent double free, is not quite correct:

* for macvlan it always returns NULL because 'lowerdev' is the one that
  was used to register rx handler (port) in macvlan_port_create() as
  well as to unregister it in macvlan_port_destroy().
* for macvtap it always returns a valid pointer because macvtap registers
  its own rx handler before macvlan_common_newlink().

Fixes: d02fd6e7d2 ("macvlan: Fix one possible double free")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-23 10:48:10 -05:00
Dave Airlie
b17800e9b7 drm/imx: ipu-v3 fixups and grayscale support
- Make const interrupt register arrays static, reduces object size.
 - Fix device_node leaks in PRE/PRG phandle lookup functions.
 - Add 8-bit and 16-bit grayscale buffer support to ipu_cpmem_set_image,
 - add 10-bit and 12-bit grayscale media bus support to ipu-csi,
   to be used by the imx-media driver.
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Merge tag 'imx-drm-next-2018-02-22' of git://git.pengutronix.de/git/pza/linux into drm-fixes

drm/imx: ipu-v3 fixups and grayscale support

- Make const interrupt register arrays static, reduces object size.
- Fix device_node leaks in PRE/PRG phandle lookup functions.
- Add 8-bit and 16-bit grayscale buffer support to ipu_cpmem_set_image,
- add 10-bit and 12-bit grayscale media bus support to ipu-csi,
  to be used by the imx-media driver.

* tag 'imx-drm-next-2018-02-22' of git://git.pengutronix.de/git/pza/linux:
  gpu: ipu-csi: add 10/12-bit grayscale support to mbus_code_to_bus_cfg
  gpu: ipu-cpmem: add 16-bit grayscale support to ipu_cpmem_set_image
  gpu: ipu-v3: prg: fix device node leak in ipu_prg_lookup_by_phandle
  gpu: ipu-v3: pre: fix device node leak in ipu_pre_lookup_by_phandle
  gpu: ipu-cpmem: add 8-bit grayscale support to ipu_cpmem_set_image
  gpu: ipu-v3: make const arrays int_reg static, shrinks object size
2018-02-23 11:11:57 +10:00
Linus Torvalds
0bb78166df Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "Fix an oops in the s5p-sss driver when used with ecb(aes)"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: s5p-sss - Fix kernel Oops in AES-ECB mode
2018-02-22 16:38:10 -08:00
Dan Carpenter
370c10522e net: aquantia: Fix error handling in aq_pci_probe()
We should check "self->aq_hw" for allocation failure, and also we should
free it on the error paths.

Fixes: 23ee07ad3c ("net: aquantia: Cleanup pci functions module")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-22 15:33:16 -05:00
David S. Miller
ed04c46d4e Various fixes across the tree, the shortlog basically says it all:
cfg80211: fix cfg80211_beacon_dup
   -> old bug in this code
 
   cfg80211: clear wep keys after disconnection
   -> certain ways of disconnecting left the keys
 
   mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4
   -> alignment issues with using 14 bytes
 
   mac80211: Do not disconnect on invalid operating class
   -> if the AP has a bogus operating class, let it be
 
   mac80211: Fix sending ADDBA response for an ongoing session
   -> don't send the same frame twice
 
   cfg80211: use only 1Mbps for basic rates in mesh
   -> interop issue with old versions of our code
 
   mac80211_hwsim: don't use WQ_MEM_RECLAIM
   -> it causes splats because it flushes work on a non-reclaim WQ
 
   regulatory: add NUL to request alpha2
   -> nla_put_string() issue from Kees
 
   mac80211: mesh: fix wrong mesh TTL offset calculation
   -> protocol issue
 
   mac80211: fix a possible leak of station stats
   -> error path might leak memory
 
   mac80211: fix calling sleeping function in atomic context
   -> percpu allocations need to be made with gfp flags
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Merge tag 'mac80211-for-davem-2018-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Various fixes across the tree, the shortlog basically says it all:

  cfg80211: fix cfg80211_beacon_dup
  -> old bug in this code

  cfg80211: clear wep keys after disconnection
  -> certain ways of disconnecting left the keys

  mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4
  -> alignment issues with using 14 bytes

  mac80211: Do not disconnect on invalid operating class
  -> if the AP has a bogus operating class, let it be

  mac80211: Fix sending ADDBA response for an ongoing session
  -> don't send the same frame twice

  cfg80211: use only 1Mbps for basic rates in mesh
  -> interop issue with old versions of our code

  mac80211_hwsim: don't use WQ_MEM_RECLAIM
  -> it causes splats because it flushes work on a non-reclaim WQ

  regulatory: add NUL to request alpha2
  -> nla_put_string() issue from Kees

  mac80211: mesh: fix wrong mesh TTL offset calculation
  -> protocol issue

  mac80211: fix a possible leak of station stats
  -> error path might leak memory

  mac80211: fix calling sleeping function in atomic context
  -> percpu allocations need to be made with gfp flags
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-22 15:17:01 -05:00
Linus Torvalds
a638af00b2 USB fixes for 4.16-rc3
Here are a number of USB fixes for 4.16-rc3
 
 Nothing major, but a number of different fixes all over the place in the
 USB stack for reported issues.  Mostly gadget driver fixes, although the
 typical set of xhci bugfixes are there, along with some new quirks
 additions as well.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of USB fixes for 4.16-rc3

  Nothing major, but a number of different fixes all over the place in
  the USB stack for reported issues. Mostly gadget driver fixes,
  although the typical set of xhci bugfixes are there, along with some
  new quirks additions as well.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (39 commits)
  Revert "usb: musb: host: don't start next rx urb if current one failed"
  usb: musb: fix enumeration after resume
  usb: cdc_acm: prevent race at write to acm while system resumes
  Add delay-init quirk for Corsair K70 RGB keyboards
  usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks()
  usb: host: ehci: always enable interrupt for qtd completion at test mode
  usb: ldusb: add PIDs for new CASSY devices supported by this driver
  usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path
  usb: host: ehci: use correct device pointer for dma ops
  usbip: keep usbip_device sockfd state in sync with tcp_socket
  ohci-hcd: Fix race condition caused by ohci_urb_enqueue() and io_watchdog_func()
  USB: serial: option: Add support for Quectel EP06
  xhci: fix xhci debugfs errors in xhci_stop
  xhci: xhci debugfs device nodes weren't removed after device plugged out
  xhci: Fix xhci debugfs devices node disappearance after hibernation
  xhci: Fix NULL pointer in xhci debugfs
  xhci: Don't print a warning when setting link state for disabled ports
  xhci: workaround for AMD Promontory disabled ports wakeup
  usb: dwc3: core: Fix ULPI PHYs and prevent phy_get/ulpi_init during suspend/resume
  USB: gadget: udc: Add missing platform_device_put() on error in bdc_pci_probe()
  ...
2018-02-22 12:13:01 -08:00
Linus Torvalds
77f892eb46 Staging/IIO fixes for 4.16-rc2
Here are a small number of staging and iio driver fixes for 4.16-rc2.
 
 The IIO fixes are all for reported things, and the android driver fixes
 also resolve some reported problems.  The remaining fsl-mc Kconfig
 change resolves a build testing error that Arnd reported.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO fixes from Greg KH:
 "Here are a small number of staging and iio driver fixes for 4.16-rc2.

  The IIO fixes are all for reported things, and the android driver
  fixes also resolve some reported problems. The remaining fsl-mc
  Kconfig change resolves a build testing error that Arnd reported.

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

* tag 'staging-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: buffer: check if a buffer has been set up when poll is called
  iio: adis_lib: Initialize trigger before requesting interrupt
  staging: android: ion: Zero CMA allocated memory
  staging: android: ashmem: Fix a race condition in pin ioctls
  staging: fsl-mc: fix build testing on x86
  iio: srf08: fix link error "devm_iio_triggered_buffer_setup" undefined
  staging: iio: ad5933: switch buffer mode to software
  iio: adc: stm32: fix stm32h7_adc_enable error handling
  staging: iio: adc: ad7192: fix external frequency setting
  iio: adc: aspeed: Fix error handling path
2018-02-22 12:05:43 -08:00
Linus Torvalds
bb17186a3e Char/Misc driver fixes for 4.16-rc3
Here are a handful of char/misc driver fixes for 4.16-rc3.
 
 There are some binder driver fixes to resolve reported issues in stress
 testing the recent binder changes, some extcon driver fixes, and a few
 mei driver fixes and new device ids.
 
 All of these, with the exception of the mei driver id additions, have
 been in linux-next for a while.  I forgot to push out the mei driver id
 additions to kernel.org until today, but all build tests pass with them
 enabled.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a handful of char/misc driver fixes for 4.16-rc3.

  There are some binder driver fixes to resolve reported issues in
  stress testing the recent binder changes, some extcon driver fixes,
  and a few mei driver fixes and new device ids.

  All of these, with the exception of the mei driver id additions, have
  been in linux-next for a while. I forgot to push out the mei driver id
  additions to kernel.org until today, but all build tests pass with
  them enabled"

* tag 'char-misc-4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mei: me: add cannon point device ids for 4th device
  mei: me: add cannon point device ids
  mei: set device client to the disconnected state upon suspend.
  ANDROID: binder: synchronize_rcu() when using POLLFREE.
  binder: replace "%p" with "%pK"
  ANDROID: binder: remove WARN() for redundant txn error
  binder: check for binder_thread allocation failure in binder_poll()
  extcon: int3496: process id-pin first so that we start with the right status
  Revert "extcon: axp288: Redo charger type detection a couple of seconds after probe()"
  extcon: axp288: Constify the axp288_pwr_up_down_info array
2018-02-22 12:04:05 -08:00
Linus Torvalds
004e390d81 First pull request for the 4.16 rc cycle
- Lots of fixes for the new IOCTL interface and general uverbs flow.
   Found through testing and syzkaller
 - Bugfixes for the new resource track netlink reporting
 - Remove some unneeded WARN_ONs that were triggering for some users in IPoIB
 - Various fixes for the bnxt_re driver
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Doug Ledford:
 "Nothing in this is overly interesting, it's mostly your garden variety
  fixes.

  There was some work in this merge cycle around the new ioctl kABI, so
  there are fixes in here related to that (probably with more to come).

  We've also recently added new netlink support with a goal of moving
  the primary means of configuring the entire subsystem to netlink
  (eventually, this is a long term project), so there are fixes for
  that.

  Then a few bnxt_re driver fixes, and a few minor WARN_ON removals, and
  that covers this pull request. There are already a few more fixes on
  the list as of this morning, so there will certainly be more to come
  in this rc cycle ;-)

  Summary:

   - Lots of fixes for the new IOCTL interface and general uverbs flow.
     Found through testing and syzkaller

   - Bugfixes for the new resource track netlink reporting

   - Remove some unneeded WARN_ONs that were triggering for some users
     in IPoIB

   - Various fixes for the bnxt_re driver"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (27 commits)
  RDMA/uverbs: Fix kernel panic while using XRC_TGT QP type
  RDMA/bnxt_re: Avoid system hang during device un-reg
  RDMA/bnxt_re: Fix system crash during load/unload
  RDMA/bnxt_re: Synchronize destroy_qp with poll_cq
  RDMA/bnxt_re: Unpin SQ and RQ memory if QP create fails
  RDMA/bnxt_re: Disable atomic capability on bnxt_re adapters
  RDMA/restrack: don't use uaccess_kernel()
  RDMA/verbs: Check existence of function prior to accessing it
  RDMA/vmw_pvrdma: Fix usage of user response structures in ABI file
  RDMA/uverbs: Sanitize user entered port numbers prior to access it
  RDMA/uverbs: Fix circular locking dependency
  RDMA/uverbs: Fix bad unlock balance in ib_uverbs_close_xrcd
  RDMA/restrack: Increment CQ restrack object before committing
  RDMA/uverbs: Protect from command mask overflow
  IB/uverbs: Fix unbalanced unlock on error path for rdma_explicit_destroy
  IB/uverbs: Improve lockdep_check
  RDMA/uverbs: Protect from races between lookup and destroy of uobjects
  IB/uverbs: Hold the uobj write lock after allocate
  IB/uverbs: Fix possible oops with duplicate ioctl attributes
  IB/uverbs: Add ioctl support for 32bit processes
  ...
2018-02-22 11:57:39 -08:00
Thomas Falcon
a2c0f039bb ibmvnic: Fix early release of login buffer
The login buffer is released before the driver can perform
sanity checks between resources the driver requested and what
firmware will provide. Don't release the login buffer until
the sanity check is performed.

Fixes: 34f0f4e3f4 ("ibmvnic: Fix login buffer memory leaks")
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-22 14:45:42 -05:00
Finn Thain
83090e7d35 net/smc9194: Remove bogus CONFIG_MAC reference
AFAIK the only version of smc9194.c with Mac support is the one in the
linux-mac68k CVS repo, which never made it to the mainline.

Despite that, from v2.3.45, arch/m68k/config.in listed CONFIG_SMC9194
under CONFIG_MAC. This mistake got carried over into Kconfig in v2.5.55.
(See pre-git era "[PATCH] add m68k dependencies to net driver config".)

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-22 14:44:37 -05:00
Eric Dumazet
88e80c6267 smsc75xx: fix smsc75xx_set_features()
If an attempt is made to disable RX checksums, USB adapter is changed
but netdev->features is not, because smsc75xx_set_features() returns a
non zero value.

This throws errors from netdev_rx_csum_fault() :
<devname>: hw csum failure

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-22 14:05:15 -05:00
Andy Shevchenko
d1fa74520d i2c: designware: Consider SCL GPIO optional
GPIO library can return -ENOSYS for the failed request.
Instead of failing ->probe() in this case override error code to 0.

Fixes: ca382f5b38 ("i2c: designware: add i2c gpio recovery option")
Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-22 12:15:35 +01:00
Patryk Kocielnik
c396b9a03e i2c: busses: i2c-sirf: Fix spelling: "formular" -> "formula".
Fix spelling.

Signed-off-by: Patryk Kocielnik <patryk.kocielnik@gmail.com>
[wsa: fixed "Initialization", too]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-22 12:12:35 +01:00
Eric Anholt
fe32a815f0 i2c: bcm2835: Set up the rising/falling edge delays
We were leaving them in the power on state (or the state the firmware
had set up for some client, if we were taking over from them).  The
boot state was 30 core clocks, when we actually want to sample some
time after (to make sure that the new input bit has actually arrived).

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
2018-02-22 12:11:07 +01:00
Ingo Molnar
ed7158bae4 treewide/trivial: Remove ';;$' typo noise
On lkml suggestions were made to split up such trivial typo fixes into per subsystem
patches:

  --- a/arch/x86/boot/compressed/eboot.c
  +++ b/arch/x86/boot/compressed/eboot.c
  @@ -439,7 +439,7 @@ setup_uga32(void **uga_handle, unsigned long size, u32 *width, u32 *height)
          struct efi_uga_draw_protocol *uga = NULL, *first_uga;
          efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID;
          unsigned long nr_ugas;
  -       u32 *handles = (u32 *)uga_handle;;
  +       u32 *handles = (u32 *)uga_handle;
          efi_status_t status = EFI_INVALID_PARAMETER;
          int i;

This patch is the result of the following script:

  $ sed -i 's/;;$/;/g' $(git grep -E ';;$'  | grep "\.[ch]:"  | grep -vwE 'for|ia64' | cut -d: -f1 | sort | uniq)

... followed by manual review to make sure it's all good.

Splitting this up is just crazy talk, let's get over with this and just do it.

Reported-by: Pavel Machek <pavel@ucw.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-22 10:59:33 +01:00
Huang Ying
7ba716698c mm, swap, frontswap: fix THP swap if frontswap enabled
It was reported by Sergey Senozhatsky that if THP (Transparent Huge
Page) and frontswap (via zswap) are both enabled, when memory goes low
so that swap is triggered, segfault and memory corruption will occur in
random user space applications as follow,

kernel: urxvt[338]: segfault at 20 ip 00007fc08889ae0d sp 00007ffc73a7fc40 error 6 in libc-2.26.so[7fc08881a000+1ae000]
 #0  0x00007fc08889ae0d _int_malloc (libc.so.6)
 #1  0x00007fc08889c2f3 malloc (libc.so.6)
 #2  0x0000560e6004bff7 _Z14rxvt_wcstoutf8PKwi (urxvt)
 #3  0x0000560e6005e75c n/a (urxvt)
 #4  0x0000560e6007d9f1 _ZN16rxvt_perl_interp6invokeEP9rxvt_term9hook_typez (urxvt)
 #5  0x0000560e6003d988 _ZN9rxvt_term9cmd_parseEv (urxvt)
 #6  0x0000560e60042804 _ZN9rxvt_term6pty_cbERN2ev2ioEi (urxvt)
 #7  0x0000560e6005c10f _Z17ev_invoke_pendingv (urxvt)
 #8  0x0000560e6005cb55 ev_run (urxvt)
 #9  0x0000560e6003b9b9 main (urxvt)
 #10 0x00007fc08883af4a __libc_start_main (libc.so.6)
 #11 0x0000560e6003f9da _start (urxvt)

After bisection, it was found the first bad commit is bd4c82c22c ("mm,
THP, swap: delay splitting THP after swapped out").

The root cause is as follows:

When the pages are written to swap device during swapping out in
swap_writepage(), zswap (fontswap) is tried to compress the pages to
improve performance.  But zswap (frontswap) will treat THP as a normal
page, so only the head page is saved.  After swapping in, tail pages
will not be restored to their original contents, causing memory
corruption in the applications.

This is fixed by refusing to save page in the frontswap store functions
if the page is a THP.  So that the THP will be swapped out to swap
device.

Another choice is to split THP if frontswap is enabled.  But it is found
that the frontswap enabling isn't flexible.  For example, if
CONFIG_ZSWAP=y (cannot be module), frontswap will be enabled even if
zswap itself isn't enabled.

Frontswap has multiple backends, to make it easy for one backend to
enable THP support, the THP checking is put in backend frontswap store
functions instead of the general interfaces.

Link: http://lkml.kernel.org/r/20180209084947.22749-1-ying.huang@intel.com
Fixes: bd4c82c22c ("mm, THP, swap: delay splitting THP after swapped out")
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Suggested-by: Minchan Kim <minchan@kernel.org>	[put THP checking in backend]
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Shaohua Li <shli@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org>	[4.14]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-21 15:35:43 -08:00
Dave Airlie
dfe8db2237 Fixes for 4.16. I contains fixes for deadlock on runtime suspend on few
drivers, a memory leak on non-blocking commits, a crash on color-eviction.
 The is also meson and edid fixes, plus a fix for a doc warning.
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Merge tag 'drm-misc-fixes-2018-02-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Fixes for 4.16. I contains fixes for deadlock on runtime suspend on few
drivers, a memory leak on non-blocking commits, a crash on color-eviction.
The is also meson and edid fixes, plus a fix for a doc warning.

* tag 'drm-misc-fixes-2018-02-21' of git://anongit.freedesktop.org/drm/drm-misc:
  drm/tve200: fix kernel-doc documentation comment include
  drm/meson: fix vsync buffer update
  drm: Handle unexpected holes in color-eviction
  drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
  drm/amdgpu: Fix deadlock on runtime suspend
  drm/radeon: Fix deadlock on runtime suspend
  drm/nouveau: Fix deadlock on runtime suspend
  drm: Allow determining if current task is output poll worker
  workqueue: Allow retrieval of current task's work struct
  drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits
2018-02-22 08:39:26 +10:00
Tom Lendacky
cfd092f2db amd-xgbe: Restore PCI interrupt enablement setting on resume
After resuming from suspend, the PCI device support must re-enable the
interrupt setting so that interrupts are actually delivered.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-21 15:39:54 -05:00
Jesper Dangaard Brouer
8dcc5b0ab0 virtio_net: fix ndo_xdp_xmit crash towards dev not ready for XDP
When a driver implements the ndo_xdp_xmit() function, there is
(currently) no generic way to determine whether it is safe to call.

It is e.g. unsafe to call the drivers ndo_xdp_xmit, if it have not
allocated the needed XDP TX queues yet.  This is the case for
virtio_net, which first allocates the XDP TX queues once an XDP/bpf
prog is attached (in virtnet_xdp_set()).

Thus, a crash will occur for virtio_net when redirecting to another
virtio_net device's ndo_xdp_xmit, which have not attached a XDP prog.
The sample xdp_redirect_map tries to attach a dummy XDP prog to take
this into account, but it can also easily fail if the virtio_net (or
actually underlying vhost driver) have not allocated enough extra
queues for the device.

Allocating more queue this is currently a manual config.
Hint for libvirt XML add:

  <driver name='vhost' queues='16'>
    <host mrg_rxbuf='off'/>
    <guest tso4='off' tso6='off' ecn='off' ufo='off'/>
  </driver>

The solution in this patch is to check that the device have loaded an
XDP/bpf prog before proceeding.  This is similar to the check
performed in driver ixgbe.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-21 15:09:29 -05:00
Jesper Dangaard Brouer
11b7d897cc virtio_net: fix memory leak in XDP_REDIRECT
XDP_REDIRECT calling xdp_do_redirect() can fail for multiple reasons
(which can be inspected by tracepoints). The current semantics is that
on failure the driver calling xdp_do_redirect() must handle freeing or
recycling the page associated with this frame.  This can be seen as an
optimization, as drivers usually have an optimized XDP_DROP code path
for frame recycling in place already.

The virtio_net driver didn't handle when xdp_do_redirect() failed.
This caused a memory leak as the page refcnt wasn't decremented on
failures.

The function __virtnet_xdp_xmit() did handle one type of failure,
when the xmit queue virtqueue_add_outbuf() is full, which "hides"
releasing a refcnt on the page.  Instead the function __virtnet_xdp_xmit()
must follow API of xdp_do_redirect(), which on errors leave it up to
the caller to free the page, of the failed send operation.

Fixes: 186b3c998c ("virtio-net: support XDP_REDIRECT")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-21 15:09:29 -05:00
Jesper Dangaard Brouer
95dbe9e7b3 virtio_net: fix XDP code path in receive_small()
When configuring virtio_net to use the code path 'receive_small()',
in-order to get correct XDP_REDIRECT support, I discovered TCP packets
would get silently dropped when loading an XDP program action XDP_PASS.

The bug seems to be that receive_small() when XDP is loaded check that
hdr->hdr.flags is zero, which seems wrong as hdr.flags contains the
flags VIRTIO_NET_HDR_F_* :
 #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
 #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */

TCP got dropped as it had the VIRTIO_NET_HDR_F_DATA_VALID flag set.

The flags that are relevant here are the VIRTIO_NET_HDR_GSO_* flags
stored in hdr->hdr.gso_type. Thus, the fix is just check that none of
the gso_type flags have been set.

Fixes: bb91accf27 ("virtio-net: XDP support for small buffers")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-21 15:09:29 -05:00
Jesper Dangaard Brouer
7324f5399b virtio_net: disable XDP_REDIRECT in receive_mergeable() case
The virtio_net code have three different RX code-paths in receive_buf().
Two of these code paths can handle XDP, but one of them is broken for
at least XDP_REDIRECT.

Function(1): receive_big() does not support XDP.
Function(2): receive_small() support XDP fully and uses build_skb().
Function(3): receive_mergeable() broken XDP_REDIRECT uses napi_alloc_skb().

The simple explanation is that receive_mergeable() is broken because
it uses napi_alloc_skb(), which violates XDP given XDP assumes packet
header+data in single page and enough tail room for skb_shared_info.

The longer explaination is that receive_mergeable() tries to
work-around and satisfy these XDP requiresments e.g. by having a
function xdp_linearize_page() that allocates and memcpy RX buffers
around (in case packet is scattered across multiple rx buffers).  This
does currently satisfy XDP_PASS, XDP_DROP and XDP_TX (but only because
we have not implemented bpf_xdp_adjust_tail yet).

The XDP_REDIRECT action combined with cpumap is broken, and cause hard
to debug crashes.  The main issue is that the RX packet does not have
the needed tail-room (SKB_DATA_ALIGN(skb_shared_info)), causing
skb_shared_info to overlap the next packets head-room (in which cpumap
stores info).

Reproducing depend on the packet payload length and if RX-buffer size
happened to have tail-room for skb_shared_info or not.  But to make
this even harder to troubleshoot, the RX-buffer size is runtime
dynamically change based on an Exponentially Weighted Moving Average
(EWMA) over the packet length, when refilling RX rings.

This patch only disable XDP_REDIRECT support in receive_mergeable()
case, because it can cause a real crash.

IMHO we should consider NOT supporting XDP in receive_mergeable() at
all, because the principles behind XDP are to gain speed by (1) code
simplicity, (2) sacrificing memory and (3) where possible moving
runtime checks to setup time.  These principles are clearly being
violated in receive_mergeable(), that e.g. runtime track average
buffer size to save memory consumption.

In the longer run, we should consider introducing a separate receive
function when attaching an XDP program, and also change the memory
model to be compatible with XDP when attaching an XDP prog.

Fixes: 186b3c998c ("virtio-net: support XDP_REDIRECT")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-21 15:09:29 -05:00
David S. Miller
9c4ff2a9ec mlx5-fixes-2018-02-20
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Merge tag 'mlx5-fixes-2018-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2018-02-20

The following pull request includes some fixes for the mlx5 core and
netdevice driver.

Please pull and let me know if there's any issue.

-stable 4.10.y:
('net/mlx5e: Fix loopback self test when GRO is off')

-stable 4.12.y:
('net/mlx5e: Specify numa node when allocating drop rq')

-stable 4.13.y:
('net/mlx5e: Verify inline header size do not exceed SKB linear size')

-stable 4.15.y:
('net/mlx5e: Fix TCP checksum in LRO buffers')
('net/mlx5: Fix error handling when adding flow rules')
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-21 14:57:35 -05:00
Leon Romanovsky
f45765872e RDMA/uverbs: Fix kernel panic while using XRC_TGT QP type
Attempt to modify XRC_TGT QP type from the user space (ibv_xsrq_pingpong
invocation) will trigger the following kernel panic. It is caused by the
fact that such QPs missed uobject initialization.

[   17.408845] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
[   17.412645] IP: rdma_lookup_put_uobject+0x9/0x50
[   17.416567] PGD 0 P4D 0
[   17.419262] Oops: 0000 [#1] SMP PTI
[   17.422915] CPU: 0 PID: 455 Comm: ibv_xsrq_pingpo Not tainted 4.16.0-rc1+ #86
[   17.424765] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
[   17.427399] RIP: 0010:rdma_lookup_put_uobject+0x9/0x50
[   17.428445] RSP: 0018:ffffb8c7401e7c90 EFLAGS: 00010246
[   17.429543] RAX: 0000000000000000 RBX: ffffb8c7401e7cf8 RCX: 0000000000000000
[   17.432426] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
[   17.437448] RBP: 0000000000000000 R08: 00000000000218f0 R09: ffffffff8ebc4cac
[   17.440223] R10: fffff6038052cd80 R11: ffff967694b36400 R12: ffff96769391f800
[   17.442184] R13: ffffb8c7401e7cd8 R14: 0000000000000000 R15: ffff967699f60000
[   17.443971] FS:  00007fc29207d700(0000) GS:ffff96769fc00000(0000) knlGS:0000000000000000
[   17.446623] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.448059] CR2: 0000000000000048 CR3: 000000001397a000 CR4: 00000000000006b0
[   17.449677] Call Trace:
[   17.450247]  modify_qp.isra.20+0x219/0x2f0
[   17.451151]  ib_uverbs_modify_qp+0x90/0xe0
[   17.452126]  ib_uverbs_write+0x1d2/0x3c0
[   17.453897]  ? __handle_mm_fault+0x93c/0xe40
[   17.454938]  __vfs_write+0x36/0x180
[   17.455875]  vfs_write+0xad/0x1e0
[   17.456766]  SyS_write+0x52/0xc0
[   17.457632]  do_syscall_64+0x75/0x180
[   17.458631]  entry_SYSCALL_64_after_hwframe+0x21/0x86
[   17.460004] RIP: 0033:0x7fc29198f5a0
[   17.460982] RSP: 002b:00007ffccc71f018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.463043] RAX: ffffffffffffffda RBX: 0000000000000078 RCX: 00007fc29198f5a0
[   17.464581] RDX: 0000000000000078 RSI: 00007ffccc71f050 RDI: 0000000000000003
[   17.466148] RBP: 0000000000000000 R08: 0000000000000078 R09: 00007ffccc71f050
[   17.467750] R10: 000055b6cf87c248 R11: 0000000000000246 R12: 00007ffccc71f300
[   17.469541] R13: 000055b6cf8733a0 R14: 0000000000000000 R15: 0000000000000000
[   17.471151] Code: 00 00 0f 1f 44 00 00 48 8b 47 48 48 8b 00 48 8b 40 10 e9 0b 8b 68 00 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 53 89 f5 <48> 8b 47 48 48 89 fb 40 0f b6 f6 48 8b 00 48 8b 40 20 e8 e0 8a
[   17.475185] RIP: rdma_lookup_put_uobject+0x9/0x50 RSP: ffffb8c7401e7c90
[   17.476841] CR2: 0000000000000048
[   17.477764] ---[ end trace 1dbcc5354071a712 ]---
[   17.478880] Kernel panic - not syncing: Fatal exception
[   17.480277] Kernel Offset: 0xd000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)

Fixes: 2f08ee363f ("RDMA/restrack: don't use uaccess_kernel()")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-02-21 13:52:19 -05:00
Jarkko Nikula
1540779883 i2c: i801: Add missing documentation entries for Braswell and Kaby Lake
Commits adding PCI IDs for Intel Braswell and Kaby Lake PCH-H lacked the
respective Kconfig and Documentation/i2c/busses/i2c-i801 change. Add
them now.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-21 09:17:20 +01:00
Ben Gardner
fba4adbbf6 i2c: designware: must wait for enable
One I2C bus on my Atom E3845 board has been broken since 4.9.
It has two devices, both declared by ACPI and with built-in drivers.

There are two back-to-back transactions originating from the kernel, one
targeting each device. The first transaction works, the second one locks
up the I2C controller. The controller never recovers.

These kernel logs show up whenever an I2C transaction is attempted after
this failure.
i2c-designware-pci 0000:00:18.3: timeout in disabling adapter
i2c-designware-pci 0000:00:18.3: timeout waiting for bus ready

Waiting for the I2C controller status to indicate that it is enabled
before programming it fixes the issue.

I have tested this patch on 4.14 and 4.15.

Fixes: commit 2702ea7dbe ("i2c: designware: wait for disable/enable only if necessary")
Cc: linux-stable <stable@vger.kernel.org> #4.13+
Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-21 09:15:47 +01:00
Philipp Zabel
ccffc9ebfa drm/edid: quirk Sony PlayStation VR headset as non-desktop
This uses the EDID info from the Sony PlayStation VR headset,
when connected directly, to mark it as non-desktop.
Since the connection box (product id b403) defaults to HDMI
pass-through to the TV, it is not marked as non-desktop.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-02-21 12:15:19 +10:00
Philipp Zabel
90eda8fc80 drm/edid: quirk Windows Mixed Reality headsets as non-desktop
This uses the EDID info from Lenovo Explorer (LEN-b800), Acer AH100
(ACR-7fce), and Samsung Odyssey (SEC-144a) to mark them as non-desktop.

The other entries are for the HP Windows Mixed Reality Headset (HPN-3515),
the Fujitsu Windows Mixed Reality headset (FUJ-1970), the Dell Visor
(DEL-7fce), and the ASUS HC102 (AUS-c102). They are not tested with real
hardware, but listed as HMD monitors alongside the tested headsets in the
Microsoft HololensSensors driver package.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-02-21 12:15:17 +10:00
Philipp Zabel
b3b12ea366 drm/edid: quirk Oculus Rift headsets as non-desktop
This uses the EDID info from Oculus Rift DK1 (OVR-0001), DK2 (OVR-0003),
and CV1 (OVR-0004) to mark them as non-desktop.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-02-21 12:15:10 +10:00
Frederic Barrat
423688abd9 ocxl: Fix potential bad errno on irq allocation
Fix some issues found by a static checker:

When allocating an AFU interrupt, if the driver cannot copy the output
parameters to userland, the errno value was not set to EFAULT

Remove a (now) useless cast.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-02-21 11:21:01 +11:00
Dave Airlie
a6493417f8 - fix lut loading for cirrus
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Merge tag 'drm-misc-fixes-2018-01-31' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

- fix lut loading for cirrus

* tag 'drm-misc-fixes-2018-01-31' of git://anongit.freedesktop.org/drm/drm-misc:
  drm/cirrus: Load lut in crtc_commit
2018-02-21 07:09:15 +10:00
Dave Airlie
d73e0111ac - three fixeups
. it fixes potential issues[1] by using monotonic timestamp
     instead of 'struct timeval'
   . correct HDMI_I2S_PIN_SEL_1 definition and setting value.
   . fix bit shift typo of FIMC register definition
 - two cleanups
   . remove unnecessary error messages
   . remove exynos_drm_rotator.h file
 
 [1] https://patchwork.kernel.org/patch/10170205/
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Merge tag 'exynos-drm-fixes-for-v4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes

- three fixeups
  . it fixes potential issues[1] by using monotonic timestamp
    instead of 'struct timeval'
  . correct HDMI_I2S_PIN_SEL_1 definition and setting value.
  . fix bit shift typo of FIMC register definition
- two cleanups
  . remove unnecessary error messages
  . remove exynos_drm_rotator.h file

[1] https://patchwork.kernel.org/patch/10170205/

* tag 'exynos-drm-fixes-for-v4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm: exynos: Use proper macro definition for HDMI_I2S_PIN_SEL_1
  drm/exynos: remove exynos_drm_rotator.h
  drm/exynos: g2d: Delete an error message for a failed memory allocation in two functions
  drm/exynos: fix comparison to bitshift when dealing with a mask
  drm/exynos: g2d: use monotonic timestamps
2018-02-21 07:08:22 +10:00
Vlad Buslov
9238e380e8 net/mlx5: Fix error handling when adding flow rules
If building match list or adding existing fg fails when
node is locked, function returned without unlocking it.
This happened if node version changed or adding existing fg
returned with EAGAIN after jumping to search_again_locked label.

Fixes: bd71b08ec2 ("net/mlx5: Support multiple updates of steering rules in parallel")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:53:00 -08:00
Eugenia Emantayev
26a0f6e829 net/mlx5: E-Switch, Fix drop counters use before creation
First use of drop counters happens in esw_apply_vport_conf function,
while they are allocated later in the flow. Fix that by moving
esw_vport_create_drop_counters function to be called before the first use.

Fixes: b8a0dbe3a9 ("net/mlx5e: E-switch, Add steering drop counters")
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:53:00 -08:00
Or Gerlitz
96de67a772 net/mlx5: Add header re-write to the checks for conflicting actions
We can't allow only some of the rules sharing an FTE to ask for
header re-write, add it to the conflicting action checks.

Fixes: 0d235c3fab ('net/mlx5: Add hash table to search FTEs in a flow-group')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:59 -08:00
Daniel Jurgens
c67f100eda net/mlx5: Use 128B cacheline size for 128B or larger cachelines
The adapter uses the cache_line_128byte setting to set the bounds for
end padding. On systems where the cacheline size is greater than 128B
use 128B instead of the default of 64B. This results in fewer partial
cacheline writes. There's a 50% chance it will pad to the end of a 256B
cache line vs only 25% when using 64B.

Fixes: f32f5bd2eb ("net/mlx5: Configure cache line size for start and end padding")
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:58 -08:00
Gal Pressman
2f0db87901 net/mlx5e: Specify numa node when allocating drop rq
When allocating a drop rq, no numa node is explicitly set which means
allocations are done on node zero. This is not necessarily the nearest
numa node to the HCA, and even worse, might even be a memoryless numa
node.

Choose the numa_node given to us by the pci device in order to properly
allocate the coherent dma memory instead of assuming zero is valid.

Fixes: 556dd1b9c3 ("net/mlx5e: Set drop RQ's necessary parameters only")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:58 -08:00
Or Gerlitz
001a2fc0c8 net/mlx5e: Return error if prio is specified when offloading eswitch vlan push
This isn't supported when we emulate eswitch vlan push action which
is the current state of things.

Fixes: 8b32580df1 ('net/mlx5e: Add TC vlan action for SRIOV offloads')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:57 -08:00
Or Gerlitz
4f5c02f949 net/mlx5: Address static checker warnings on non-constant initializers
Address these sparse warnings on drivers/net/ethernet/mellanox/mlx5

[..]/core/diag/fs_tracepoint.c:99:53: warning: non-constant initializer for static object
[..]/core/diag/fs_tracepoint.c:102:53: warning: non-constant initializer for static object

etc

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:56 -08:00
Or Gerlitz
9afe9a5353 net/mlx5e: Eliminate build warnings on no previous prototype
Fix these gcc warnings on drivers/net/ethernet/mellanox/mlx5:

[..]/core/lib/clock.c:454:6: warning: no previous prototype for 'mlx5_init_clock' [-Wmissing-prototypes]
[..]/core/lib/clock.c:510:6: warning: no previous prototype for 'mlx5_cleanup_clock' [-Wmissing-prototypes]
[..]/core/en_main.c:3141:5: warning: no previous prototype for 'mlx5e_setup_tc' [-Wmissing-prototypes]

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:56 -08:00
Eran Ben Elisha
f600c60880 net/mlx5e: Verify inline header size do not exceed SKB linear size
Driver tries to copy at least MLX5E_MIN_INLINE bytes into the control
segment of the WQE. It assumes that the linear part contains at least
MLX5E_MIN_INLINE bytes, which can be wrong.

Cited commit verified that driver will not copy more bytes into the
inline header part that the actual size of the packet. Re-factor this
check to make sure we do not exceed the linear part as well.

This fix is aligned with the current driver's assumption that the entire
L2 will be present in the linear part of the SKB.

Fixes: 6aace17e64 ("net/mlx5e: Fix inline header size for small packets")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-02-20 12:52:55 -08:00