Commit Graph

811406 Commits

Author SHA1 Message Date
Ross Lagerwall 6c57f04580 net: Fix usage of pskb_trim_rcsum
In certain cases, pskb_trim_rcsum() may change skb pointers.
Reinitialize header pointers afterwards to avoid potential
use-after-frees. Add a note in the documentation of
pskb_trim_rcsum(). Found by KASAN.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18 14:05:14 -08:00
Linus Torvalds 2339e91d0e media fixes for v5.0-rc3
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcQgyKAAoJEAhfPr2O5OEVmIkQAI4myAIoAeZKtSp/LKIPOUaX
 YBh9UGaXw+BGFTjbTn5/QbT5OpjpX6uquEkpelPEWdk9h6iVGUNLPnZ+2rQYR2rX
 J8hUPGyFFge7D3FWAlRSD0th0ff2rB+/7PBhJ87F+pAEfR8FgUZWkeZd2G2Msx/1
 eh2QG4VqPK0Jy9ZjfMvbxu+QVEAEeVhQ2EdMW5gcttpJYDElztZ5YlJGGENuzULo
 gI64bXnaBYFBCPd+SvhuxCapcI2EldYVYVG+OnYXJw3iwVo/XWRywmepqsXv5Kgn
 ZWzLqfmCUQogfdNotkXOiNfiSGMYHoZGTfSzsTUzz87hfOVVbF7d8l0Q1WNfs9IF
 wiehtj/DGocDKMiAE6Ol+duL0nvwhdSi8jFL7a3ydRUeJENCatVjK6pP6cujo4tS
 HUYeP7glD+Xwib6N9XzqC7axWQc2Dst137+r50SDNZXLcYmm83HU9uhj4wLG9JNp
 2fXlJqfJvILf+M8KuA2wfXXCXQJKnAEcA3+D/VeNjcWGAoaXGORJXWwP8P6ZGaGe
 XTfhKItW1N7GaQWNhmcFuDmoG1WM3Ym0XDDhkmSdc18R29w4X7+bJkA8kyNIcMft
 VedcKEGACeqyZWNxUPKoNcFU19PtcQ91L2tSXytlmQfwX3C9WF0AJaI/oxWCw2O/
 LLaJBj5vJuL4wtkPwnEj
 =qasf
 -----END PGP SIGNATURE-----

Merge tag 'media/v5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - a regression fix at v4l2 core, with affects multi-plane streams

 - a fix at vim2m driver

* tag 'media/v5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: vim2m: only cancel work if it is for right context
  media: v4l: ioctl: Validate num_planes for debug messages
  media: v4l: ioctl: Validate num_planes before using it
  media: v4l2-ioctl: Clear only per-plane reserved fields
2019-01-19 07:34:10 +12:00
Linus Torvalds d28f3e7219 pci-v5.0-fixes-2
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlxCIKsUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vwQcxAAtwJUtcHo5fFIloz+PXRCAbpk4dPa
 2/8op8KQsWnqStf6Wjk5tkQ8dt9Zx8SKV40vbt4MjwdRr1qLCe0z9+OGUJG+KTMG
 OWFfNFb4at1vOTw7EZ4EXJnkecink654dA4jeVKkN/2+d8Qj2EUjs6aM0+gYngF/
 bR9K8P0l427AtCKos2/bbTqM8OgoaFfP93gQ7UcspaktlTdzKH30kEDqLpM4JV0p
 Ai/3L0qaFx6ORxzktNGWnKO8ngJB9sj1TS5lcQ+Paz0RhjXzKFKlrEGeZSMoQLA4
 5S5vLME/+nlx8dN1/uE4WubM9hhSJQtkNRllqSu7MvlhQfXbowsM+Y1FvfHPV2Bm
 h8fSpBBNy7EFoAifb6eNkshIu9TYwlQv1rnWs2LZm4AZbAC2Ft0mULgnCu0fdW2T
 VzvzKCCKmGnm+uVD0Fxkt5Rk9L0UQCmLalgBVLQIjwqKMkZNH8pQnSKDJlBSEjKS
 S5KWRohHoqFQoJ5E7P0G8yw9lMspYS8uaeVOfbT4Ns+GbUp6HuIs0hNRhETWPjKq
 7GSbUIRlf8QK7rmMx+LmGcld2iRLedBVmRdRcDIJF1b7B07lm13cdvn3Wr0S9HLU
 sYYCm+W55I6LTuGuLaIPRLAOK8fL0kK3g30b9o/ZzhpgnaRQI7FLIE6XszEtBIor
 a/8sGRJIGa5MW9g=
 =P0KV
 -----END PGP SIGNATURE-----

Merge tag 'pci-v5.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas::

 - Fix PCI kconfig menu organization (Rob Herring)

 - Fix pci_alloc_irq_vectors_affinity() error return to allow "reduce
   and retry" for drivers using IRQ sets (Ming Lei)

 - Fix "pci=disable_acs_redir" initdata use-after-free problem (Logan
   Gunthorpe)

* tag 'pci-v5.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Fix __initdata issue with "pci=disable_acs_redir" parameter
  PCI/MSI: Return -ENOSPC from pci_alloc_irq_vectors_affinity()
  PCI: Fix PCI kconfig menu organization
2019-01-19 07:26:16 +12:00
Linus Torvalds 8b4fe58db6 - Fix the error check on master->sysclk val in the Cadence driver
- Fix reattach implementation in the Designware driver
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEEKmCqpbOU668PNA69Ze02AX4ItwAFAlxBu7AWHGJicmV6aWxs
 b25Aa2VybmVsLm9yZwAKCRBl7TYBfgi3AC2LEACVDsToOGU00h3Mpl1VB4Lht1Sr
 ynHmK+e728tsw6WuM7obgXRFfEdl3J5Pt5urEn4jOqasUuew6vkp0ghakkRMkViU
 MRVYICC1imxakExkerCAO4R6+QFdK2OOPKl0o2JF3omhVz5CfZQ/FfuSzS51obgN
 Wi77IzLIxyjNnnj1Zc+Xvpa4ZgVowETTRYNdaT9/FtWAmmIaHaC8ff0a71FCHZPT
 cAYYk/wXC3oFhqN4xUWFb3H8rce/lBBLGO13+bsMSy+5lxVB6weJsxNIGVpez82+
 W4nLYjITG5KcOcNHeebQK0BVsl0ILGXh51sodcuK/7zhVbk72gZW/ZgHU9V9I2ZJ
 5tJGhKwvRl0tHAo7u5jTSi5JVuue9+h0XCx2qxG9dVY5cVbC7/vJfFPxSEFucNTV
 hNjT1A43KX8myTaK+GnRHdcxYsRWXFt1Hu0kY1OPq//ER9VKMnbE7EIuPPSKFrXy
 Q1Qk7yrrQi8CX9vqwOY/7GXGvUJsefF4JICwFs6qyAlF/EKlUcfQ65WRPOMn2gof
 bJW9QTk33EwCgJCzcP0w9EbbodQStq7a9B59ZQYl9InOHCsy9fZrSUF3LP8jR2FS
 dXvhlYKQ+V14a5TuLmPY2TjaN/nUlTEqf8JpPYGW8ed43Jdd5VwGw1oZbPpX8kkm
 aTDCW/yPXd+qAFXgvw==
 =041y
 -----END PGP SIGNATURE-----

Merge tag 'i3c/fixes-for-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c fixes from Boris Brezillon:

 - Fix the error check on master->sysclk val in the Cadence driver

 - Fix reattach implementation in the Designware driver

* tag 'i3c/fixes-for-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: dw-i3c-master: fix i3c_attach/reattach
  i3c: master: Fix an error checking typo in 'cdns_i3c_master_probe()'
2019-01-19 07:23:25 +12:00
Linus Torvalds 3cdf680ea1 Raw NAND changes:
- jz4740: fix a compilation warning
 - fsmc: fix a regression introduced by ->select_chip() deprecation
 - denali: fix a regression introduced by NAND_KEEP_TIMINGS addition
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEEKmCqpbOU668PNA69Ze02AX4ItwAFAlxBzC4WHGJicmV6aWxs
 b25Aa2VybmVsLm9yZwAKCRBl7TYBfgi3AByyD/9geVQxQ9U2buSRxtjQ6TYggkwI
 N8Dc5r1SmILmAtZTm0G3TpH2gibx+BOfajtjRkR9LKbji9tLo+DV7acrBz7ezQrO
 rzAf0hvLIG/lfexvU23JrszG0TOPFZm0diitRgeZn+bSih6PTjUswPhJHy3WqFjt
 4bpPCofdCwRaQfORZ+yqMyTdE1t4hRNQ31Uk8vjtZQdkN0ROmV7OvfzvNHK3/4oL
 N6OEZCIy0nJS9+x7Kv7j/EpIVUad/MddTShC1HRrxClcbnlerrA/X3vn+2L7U8Qr
 l53YDBBNNnuKYjJRU6qUtipS6OC5JUeAQV4Wd9vRJyQXwHRf1Ti6UlgVIosoIFSr
 lWJaMuDXSt+ruHEym/UAEXFzFwU4E3Mek0Tu86/TH7MSs3te0cPhGXhxhM/VzyKy
 a3zVMBeYk+Itqzv9KjSth0T7jwcgQpDtVbdR2YI8b+rSmfifenCXHIIctjDRt0XM
 s/AwoWbwIV+x7/NEHY/Sex5PNyD1acLSYv42eVnFaKh8AlFHe73qqeuSIcm/4PdQ
 R7tjPmHfhiGC8wzbHWlaz05aqZa8q0X0576q3YqYV0WPWE/0BbQlI2uREPLnYyao
 OG1Etx27owXekOWXtEpTOBcgl32qcOjNguf2TO/W+z0HTwtc4sFy5zTGPBA9cUZ/
 2rZ+FMubCdqqXqYJzg==
 =qyZu
 -----END PGP SIGNATURE-----

Merge tag 'mtd/fixes-for-5.0-rc3' of git://git.infradead.org/linux-mtd

Pull mtd fixes from Boris Brezillon:
 "Raw NAND changes:

   - jz4740: fix a compilation warning

   - fsmc: fix a regression introduced by ->select_chip() deprecation

   - denali: fix a regression introduced by NAND_KEEP_TIMINGS addition"

* tag 'mtd/fixes-for-5.0-rc3' of git://git.infradead.org/linux-mtd:
  mtd: rawnand: denali: get ->setup_data_interface() working again
  mtd: nand: jz4740: fix '__iomem *' vs. '* __iomem'
  mtd: rawnand: fsmc: Keep bank enable bit set
2019-01-19 07:21:43 +12:00
Linus Torvalds 6e4673b42e regmap: Fixes for v5.0
The cleanups for the way we handle type information introduced during
 the merge window revealed that we'd been abusing the irq APIs for a long
 time, causing breakage for systems.  This pull request has a couple of
 minimal fixes for that which restore the previous behaviour for the time
 being, we'll fix it properly for v5.1 but that'd be a bit much to do as
 a bug fix.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlxByIkTHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0FErB/4/Od1iLnxAqb8dFmMFA/xbW8V/zmE3
 8BLWUv8URhitdNPfdzWws+hD1AP5GfzoMyUiuP+BB6+x4JCBnL10vwAw7V0YYEox
 NrVB9ALYdu7cGPu809cVqIretGxW28T8PsJehcoHDvSYLXaaIr36tHApIbWlT3bn
 Sh166tTylLZG4bQ/KN0yEcNhyqqU6Lschp1CD7KSXux9jeMFxpQSCR9yJ2qhUbR4
 igNayb4F8jCXU9R1WSD2pE3hTtsvTd/0i87HEzMq4jfSr3dck0dsW7tkewfe/MBl
 1UM+6s46vqEl0u+9whJupDYvNr5ztF+wHnU85E6cX3gP442vk1sxnHaM
 =HTMs
 -----END PGP SIGNATURE-----

Merge tag 'regmap-fix-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "The cleanups for the way we handle type information introduced during
  the merge window revealed that we'd been abusing the irq APIs for a
  long time, causing breakage for systems.

  This has a couple of minimal fixes for that which restore the previous
  behaviour for the time being, we'll fix it properly for v5.1 but
  that'd be a bit much to do as a bug fix"

* tag 'regmap-fix-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap-irq: do not write mask register if mask_base is zero
  regmap: regmap-irq: silently ignore unsupported type settings
2019-01-19 07:17:19 +12:00
Thomas Petazzoni e40e2a2e78 net: phy: mdio_bus: add missing device_del() in mdiobus_register() error handling
The current code in __mdiobus_register() doesn't properly handle
failures returned by the devm_gpiod_get_optional() call: it returns
immediately, without unregistering the device that was added by the
call to device_register() earlier in the function.

This leaves a stale device, which then causes a NULL pointer
dereference in the code that handles deferred probing:

[    1.489982] Unable to handle kernel NULL pointer dereference at virtual address 00000074
[    1.498110] pgd = (ptrval)
[    1.500838] [00000074] *pgd=00000000
[    1.504432] Internal error: Oops: 17 [#1] SMP ARM
[    1.509133] Modules linked in:
[    1.512192] CPU: 1 PID: 51 Comm: kworker/1:3 Not tainted 4.20.0-00039-g3b73a4cc8b3e-dirty #99
[    1.520708] Hardware name: Xilinx Zynq Platform
[    1.525261] Workqueue: events deferred_probe_work_func
[    1.530403] PC is at klist_next+0x10/0xfc
[    1.534403] LR is at device_for_each_child+0x40/0x94
[    1.539361] pc : [<c0683fbc>]    lr : [<c0455d90>]    psr: 200e0013
[    1.545628] sp : ceeefe68  ip : 00000001  fp : ffffe000
[    1.550863] r10: 00000000  r9 : c0c66790  r8 : 00000000
[    1.556079] r7 : c0457d44  r6 : 00000000  r5 : ceeefe8c  r4 : cfa2ec78
[    1.562604] r3 : 00000064  r2 : c0457d44  r1 : ceeefe8c  r0 : 00000064
[    1.569129] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    1.576263] Control: 18c5387d  Table: 0ed7804a  DAC: 00000051
[    1.582013] Process kworker/1:3 (pid: 51, stack limit = 0x(ptrval))
[    1.588280] Stack: (0xceeefe68 to 0xceef0000)
[    1.592630] fe60:                   cfa2ec78 c0c03c08 00000000 c0457d44 00000000 c0c66790
[    1.600814] fe80: 00000000 c0455d90 ceeefeac 00000064 00000000 0d7a542e cee9d494 cfa2ec78
[    1.608998] fea0: cfa2ec78 00000000 c0457d44 c0457d7c cee9d494 c0c03c08 00000000 c0455dac
[    1.617182] fec0: cf98ba44 cf926a00 cee9d494 0d7a542e 00000000 cf935a10 cf935a10 cf935a10
[    1.625366] fee0: c0c4e9b8 c0457d7c c0c4e80c 00000001 cf935a10 c0457df4 cf935a10 c0c4e99c
[    1.633550] ff00: c0c4e99c c045a27c c0c4e9c4 ced63f80 cfde8a80 cfdebc00 00000000 c013893c
[    1.641734] ff20: cfde8a80 cfde8a80 c07bd354 ced63f80 ced63f94 cfde8a80 00000008 c0c02d00
[    1.649936] ff40: cfde8a98 cfde8a80 ffffe000 c0139a30 ffffe000 c0c6624a c07bd354 00000000
[    1.658120] ff60: ffffe000 cee9e780 ceebfe00 00000000 ceeee000 ced63f80 c0139788 cf8cdea4
[    1.666304] ff80: cee9e79c c013e598 00000001 ceebfe00 c013e44c 00000000 00000000 00000000
[    1.674488] ffa0: 00000000 00000000 00000000 c01010e8 00000000 00000000 00000000 00000000
[    1.682671] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    1.690855] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[    1.699058] [<c0683fbc>] (klist_next) from [<c0455d90>] (device_for_each_child+0x40/0x94)
[    1.707241] [<c0455d90>] (device_for_each_child) from [<c0457d7c>] (device_reorder_to_tail+0x38/0x88)
[    1.716476] [<c0457d7c>] (device_reorder_to_tail) from [<c0455dac>] (device_for_each_child+0x5c/0x94)
[    1.725692] [<c0455dac>] (device_for_each_child) from [<c0457d7c>] (device_reorder_to_tail+0x38/0x88)
[    1.734927] [<c0457d7c>] (device_reorder_to_tail) from [<c0457df4>] (device_pm_move_to_tail+0x28/0x40)
[    1.744235] [<c0457df4>] (device_pm_move_to_tail) from [<c045a27c>] (deferred_probe_work_func+0x58/0x8c)
[    1.753746] [<c045a27c>] (deferred_probe_work_func) from [<c013893c>] (process_one_work+0x210/0x4fc)
[    1.762888] [<c013893c>] (process_one_work) from [<c0139a30>] (worker_thread+0x2a8/0x5c0)
[    1.771072] [<c0139a30>] (worker_thread) from [<c013e598>] (kthread+0x14c/0x154)
[    1.778482] [<c013e598>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[    1.785689] Exception stack(0xceeeffb0 to 0xceeefff8)
[    1.790739] ffa0:                                     00000000 00000000 00000000 00000000
[    1.798923] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    1.807107] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    1.813724] Code: e92d47f0 e1a05000 e8900048 e1a00003 (e5937010)
[    1.819844] ---[ end trace 3c2c0c8b65399ec9 ]---

The actual error that we had from devm_gpiod_get_optional() was
-EPROBE_DEFER, due to the GPIO being provided by a driver that is
probed later than the Ethernet controller driver.

To fix this, we simply add the missing device_del() invocation in the
error path.

Fixes: 69226896ad ("mdio_bus: Issue GPIO RESET to PHYs")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18 11:07:33 -08:00
Otto Sabart 0e78f389a7 doc: net: fix bad references to network drivers
Fix "reference to nonexisting document" warnings.

Fixes: b255e500c8 ("net: documentation: build a directory structure for drivers")
Signed-off-by: Otto Sabart <ottosabart@seberm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-18 11:03:31 -08:00
Linus Torvalds c5b709804e powerpc fixes for 5.0 #3
A couple of weeks of fixes.
 
 There's one fix for an oops on Power9 machines with Open CAPI adapters.
 
 And a fix for probable memory corruption in some of the new NPU code, caught by
 smatch though and not seen in the wild.
 
 Plus a few other minor fixes.
 
 There's one non-fix which is the perf_regs change. That was sent during the
 merge window but I accidentally only merged the first of two patches in the
 series. It's been in linux-next so hopefully doesn't conflict with anything in
 acme's tree.
 
 Thanks to:
  Alexey Kardashevskiy, Andrew Donnellan, Breno Leitao, Christian Lamparter,
  Christophe Leroy, Dan Carpenter, Frederic Barrat, Greg Kurz, Jason A.
  Donenfeld, Madhavan Srinivasan.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcQcioAAoJEFHr6jzI4aWAMxoP/j2w/p1z5As/rMQRH9L0wTDV
 Z/69GkRnj+rkRSNBWJ2T/0KY6c1mXPH4R2nvmFNfdEYzXWLh+Ymn65RQ3ifQnb56
 C5PPjVOPruiCjKAWiNYGr8S+Ev8IehZU0zXXToCwV1MKCMU0QcO6Q1HtEVI56WhV
 xtQfBJz1tkPJ4Ep9HZ7go7p6SKaFmmWh/Z8pg02s5DOlGN4bKFQ3Qc+XnNPw5vc8
 LgjrwrOIQ7D+lXa6saQWbV16ktLzzpsxDfxXHXNTz0bOjyuQAXfdnfGJnEoDowYa
 Pqio5fm1rcjXcHtqwuSsRWeYi+dzO+AYj0WUrqevcPSAMM0RwmqREcfBGLvAlPWA
 fYfuMMB5zhf9HkDHkx4+8pvZ6io+VDP5k5YF7ZnQfz8tVYAboTmRvIiGAM8ks8hC
 6DnNdV2WojBeoK2gWsgX+WAIc4Ynk+u0554kf884rtiK7TSCRq63JNTeTmIr8v/u
 7g5qwlC99RDYsl/ZkY2eQviiQo6dWXTwRCZ9lbk/iLivc90ulN7P+8r3oaQNV6ja
 zYpiLz95fpL7g5G0caW3AZTzfnJxOGioaCGOQc/hZHzhdc7p9zWH+7sd9mPMGayu
 iTMn66h2v8cf6o6u2peAf15NQvR0jHe8mIccUpRJTXWwnlVMI2WAcXqlpE+9fj5V
 gBZ0MuitQtX0qLEtFpUa
 =hlZ7
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "A couple of weeks of fixes.

  There's one fix for an oops on Power9 machines with Open CAPI
  adapters.

  And a fix for probable memory corruption in some of the new NPU code,
  caught by smatch though and not seen in the wild.

  Plus a few other minor fixes.

  There's one non-fix which is the perf_regs change. That was sent
  during the merge window but I accidentally only merged the first of
  two patches in the series. It's been in linux-next so hopefully
  doesn't conflict with anything in acme's tree.

  Thanks to: Alexey Kardashevskiy, Andrew Donnellan, Breno Leitao,
  Christian Lamparter, Christophe Leroy, Dan Carpenter, Frederic Barrat,
  Greg Kurz, Jason A. Donenfeld, Madhavan Srinivasan"

* tag 'powerpc-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/syscalls: Fix syscall tracing
  powerpc/pseries: Fix build break due to pnv_npu2_init()
  powerpc/4xx/ocm: Fix fix for phys_addr_t printf warnings
  powerpc/powernv/npu: Fix oops in pnv_try_setup_npu_table_group()
  powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM
  powerpc/8xx: fix setting of pagetable for Abatron BDI debug tool.
  powerpc/powernv/npu: Allocate enough memory in pnv_try_setup_npu_table_group()
  powerpc/perf: Update perf_regs structure to include MMCRA
2019-01-19 05:55:42 +12:00
Linus Torvalds e6ec2fda2d xen: fixes for 5.0-rc3
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCXEGhYwAKCRCAXGG7T9hj
 vu/qAP4ljV1QwAicTP2IosIpmSojJV4BkkJOs36dgF1u4DscPAEA7YhvTzGYcZr6
 7rmBIbGve6Yb24Uh4aL3ir4w+LUvSAg=
 =Jm9L
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - Several fixes for the Xen pvcalls drivers (1 fix for the backend and
   8 for the frontend).

 - A fix for a rather longstanding bug in the Xen sched_clock()
   interface which led to weird time jumps when migrating the system.

 - A fix for avoiding accesses to x2apic MSRs in Xen PV guests.

* tag 'for-linus-5.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: Fix x86 sched_clock() interface for xen
  pvcalls-front: fix potential null dereference
  always clear the X2APIC_ENABLE bit for PV guest
  pvcalls-front: Avoid get_free_pages(GFP_KERNEL) under spinlock
  xen/pvcalls: remove set but not used variable 'intf'
  pvcalls-back: set -ENOTCONN in pvcalls_conn_back_read
  pvcalls-front: don't return error when the ring is full
  pvcalls-front: properly allocate sk
  pvcalls-front: don't try to free unallocated rings
  pvcalls-front: read all data before closing the connection
2019-01-19 05:53:41 +12:00
Linus Torvalds dc6fef2cc5 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:
   - Zero-length DMA mapping in caam
   - Invalidly mapping stack memory for DMA in talitos
   - Use after free in cavium/nitrox
   - Key parsing in authenc
   - Undefined shift in sm3
   - Bogus completion call in authencesn
   - SHA support detection in caam"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sm3 - fix undefined shift by >= width of value
  crypto: talitos - fix ablkcipher for CONFIG_VMAP_STACK
  crypto: talitos - reorder code in talitos_edesc_alloc()
  crypto: adiantum - initialize crypto_spawn::inst
  crypto: cavium/nitrox - Use after free in process_response_list()
  crypto: authencesn - Avoid twice completion call in decrypt path
  crypto: caam - fix SHA support detection
  crypto: caam - fix zero-length buffer DMA mapping
  crypto: ccree - convert to use crypto_authenc_extractkeys()
  crypto: bcm - convert to use crypto_authenc_extractkeys()
  crypto: authenc - fix parsing key with misaligned rta_len
2019-01-19 05:48:43 +12:00
Linus Torvalds 6e434bf2e3 ACPI fixes for 5.0-rc3
- Restore the ACPI initialization ordering changed implicitly by the
    module-level AML handling rework during the 4.17 development cycle
    that caused the EC address space handler based on information from
    ECDT to be set up before loading AML definition blocks, making it
    effectively not accessible by AML on some systems that don't work
    as expected any more (Rafael Wysocki).
 
  - Add direct dependencies on PCI to Kconfig in multiple places for
    code that depends on both ACPI and PCI, but the PCI dependency
    was implicitly satisfied by the ACPI dependency before, to prevent
    invalid configurations from being created, for example by
    randconfig (Sinan Kaya).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJcQa4DAAoJEILEb/54YlRxpIgQAIs35RTfUtGZHm4ripw6fOli
 6NAK9NaBGcJ6OEPUkD+O3dqCtMU+dZapv3qLxqs5q+VTpJUPWKmV1QJTkaeyiuJ/
 BiY0Ftkg/QRDXVV1jlMSSxWadDKsuK/B+QbWFH2JRXJMtS1659XMW1pTPoYGfdt4
 Q8VUF5ITa7uN6uZMEsCFWAztDFlmMff2w+YO3Lr0gUNLrTFmo+aQgJHY3PGgsNWj
 Ev0JF+IhRYXerSGDQOiCh8VHQfa1scockUbHyYuUxiWVbB83OD1pODPAX2St9dTl
 dW/agYDzAGEE9DItLNdX3UBWeWj2qRfzWeiDrBa80C5CbRD6e7GoDW+tM4xVQdkn
 kXns9xCeXNQZOwJO/KM5G6u8zLs+oehRsBdz5vi/+DaCv9yuhGGdHAIU3Tj1qWwr
 IIFrZf2mfpS2WSjSoHP93l7S5l4dSu8hmGyvOfcjevkFA9qVWcieOlNpvoP80bpl
 ctSRYCaLLxXEvLvv9dNUVsYwuLiO8fccSSnCf/SzMdyeAiHc2yPY+pX5jeGn3b0g
 w5SMW/OkMmWPWoanBnx0OEg8K+nlD+0qhF2Yn0+wKHRaSKgj/wU7H5+NmrXU4gxn
 LaPYOCPmij7V7Sexxxty0zfEPLcvig4cMtApMZar3lNtyIr6q6i4FscTk+CrUNL/
 /Kl2vkiHIHJNW6+oDuBP
 =t7iI
 -----END PGP SIGNATURE-----

Merge tag 'acpi-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix an ACPI initialization ordering issue introduced in the 4.17
  time frame and causing functional problems to appear on multiple
  systems and fix some fallout of the recent change to enable building
  kernels with ACPI support and without PCI.

  Specifics:

   - Restore the ACPI initialization ordering changed implicitly by the
     module-level AML handling rework during the 4.17 development cycle
     that caused the EC address space handler based on information from
     ECDT to be set up before loading AML definition blocks, making it
     effectively not accessible by AML on some systems that don't work
     as expected any more (Rafael Wysocki).

   - Add direct dependencies on PCI to Kconfig in multiple places for
     code that depends on both ACPI and PCI, but the PCI dependency was
     implicitly satisfied by the ACPI dependency before, to prevent
     invalid configurations from being created, for example by
     randconfig (Sinan Kaya)"

* tag 'acpi-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Look for ECDT EC after calling acpi_load_tables()
  drivers: thermal: int340x_thermal: Make PCI dependency explicit
  x86/intel/lpss: Make PCI dependency explicit
  platform/x86: apple-gmux: Make PCI dependency explicit
  platform/x86: intel_pmc: Make PCI dependency explicit
  platform/x86: intel_ips: make PCI dependency explicit
  vga-switcheroo: make PCI dependency explicit
  ata: pata_acpi: Make PCI dependency explicit
  ACPI / LPSS: Make PCI dependency explicit
2019-01-19 05:46:00 +12:00
Linus Torvalds 2a8cbf2a02 fbdev fixes for v5.0-rc3:
- fix stack memory leak in omap2fb driver (Vlad Tsyrklevich)
 
 - fix OF node name handling v4.20 regression in offb driver (Rob Herring)
 
 - convert CONFIG_FB_LOGO_CENTER config option added in v5.0-rc1 into
   a kernel parameter (Peter Rosin)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJcQcZZAAoJEH4ztj+gR8IL/7wQAKbpzwH5WnxTvZzRIacnHcoS
 BAzlgG4QSYqr2h09BRbsgi5GlrWKdMkk0AH7q/jkVfcmaJIkaibS755LnH7imumy
 +y8OGPYlNq0ys/F2wV4gYr+yZJ+FCplZA0Nl4DoZxjG9kTw3/Akayh/RbnzEgKkU
 LvNse8sP/ksON74p9AzBEtp9VLUL3QcyqksN0jtse/7UmLcL+o+j8kWPqwM2XRQ6
 XUSpIvhVhcl/l4zT5feMy2x0TCZ8GPLcjKDcevvGypPlMbDr9jPdnYDCU5SIqCsM
 gOl4Uiuhnd4Amg5eOWgYxzBnmGFWwqNjYLDNUmuPy95NaIDeIpQw/QY3+GAo+BDh
 O6u8BKFbUhy5RVQF9s/wP2p8HXUy29oUpNuorowFUd46fHsBvd6hfb1/diwKy6iB
 2HXaEplIWcEk34hH7uM0gUrJ+57YQAv30TmLGBH+zyhfgpb8OyHSVpDqmRWBBP8s
 HU/YGwQMBQE/lGqoAq5ku6Q8Ex4kJ9GSBJELKyiwyElB5eZNX6gSnMv5iURS3tlZ
 Wh1hTutmsktVW5+ndlAzXcRX0SbvfoLfWiTaAXdKZv17+7uaBoZvsnc7bLahOOVU
 xY5WAYSgqWEVX03Owb2QM8sJsrIIrQ4w44SAb4UNNDw1o1HCVDkhrHq5uG68k0na
 +UskmI44TNIA5ZIQiMC4
 =O8jy
 -----END PGP SIGNATURE-----

Merge tag 'fbdev-v5.0-rc3' of git://github.com/bzolnier/linux

Pull fbdev fixes from Bartlomiej Zolnierkiewicz:

 - fix stack memory leak in omap2fb driver (Vlad Tsyrklevich)

 - fix OF node name handling v4.20 regression in offb driver (Rob
   Herring)

 - convert CONFIG_FB_LOGO_CENTER config option added in v5.0-rc1 into a
   kernel parameter (Peter Rosin)

* tag 'fbdev-v5.0-rc3' of git://github.com/bzolnier/linux:
  fbdev: fbmem: convert CONFIG_FB_LOGO_CENTER into a cmd line option
  fbdev: offb: Fix OF node name handling
  omap2fb: Fix stack memory disclosure
2019-01-19 05:43:05 +12:00
Linus Torvalds c3653ebdf8 drm/nouveau: add TU102 support
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcQWdCAAoJEAx081l5xIa+tjwP/iy9jfgenXFqr/bX3drYE4oc
 CTAaDPec837ZOh/IWgLZKiYC29UCbkV9WuY8aIqrmuze6DS3H9Fgn9WwQdGwBuG9
 gmWmaf10Bb1/gr6zYvUrTtH5QI9Joaq6SDzR8itIgrYeI/1IULpooeeuicckjEqR
 jnRMKcyuwWkvsis1yLR/Azqcs2vpd/A63qTDg5aRRVUQOVzGPXxTRkvhyerT4xi8
 SB3qooynNDKKTiEM8301NcH9Ihcrpooc8+6HB/tb3XfftsDrX4tSzOFhkqWHYHGf
 +gSUPaDyACfQjjEDzZjYjxMA83c7Iy8V3ybNDxalDWj8rJRJolaPja0TlWFiWtmq
 RHMvKX138/lywsQnVgiG7aX0E21l7sfj10DCzmJMnnpXJGSA3Zr04/7hEfr/L8N4
 hDWvZZMfr7BcTgT1O+L00yl/w5iBU/cTBesEQMO732dsTVc25E+wfLTsegcReKDd
 Xt4a2iO8RGKhIET/OqQ8M3kPxB62IsmoohzJMWXHHhHSpHJUSF0x2wiEq6sgBsD4
 Sh5pHWOCOEvqKAHlOOcWobjRh62peUYFaGqKYoh/QwpAbDzVgph7jP8hDKrpQ4bd
 VPiPgl7esjcFr2IvQga8UPRvVh3XN3wfdzsRPmSjJPWy11KxP4NuYzXQHXQYY+iO
 wZDCzhZCY0J+Kjtz+NEv
 =2CkL
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2019-01-18-1' of git://anongit.freedesktop.org/drm/drm

Pull drm update from Dave Airlie:
 "Add nouveau TU102 (RTX 2080 Ti) support"

* tag 'drm-fixes-2019-01-18-1' of git://anongit.freedesktop.org/drm/drm:
  drm/nouveau/core: recognise TU102
2019-01-19 05:41:38 +12:00
Josef Bacik fd340d0f68 btrfs: wakeup cleaner thread when adding delayed iput
The cleaner thread usually takes care of delayed iputs, with the
exception of the btrfs_end_transaction_throttle path.  Delaying iputs
means we are potentially delaying the eviction of an inode and it's
respective space.  The cleaner thread only gets woken up every 30
seconds, or when we require space.  If there are a lot of inodes that
need to be deleted we could induce a serious amount of latency while we
wait for these inodes to be evicted.  So instead wakeup the cleaner if
it's not already awake to process any new delayed iputs we add to the
list.  If we suddenly need space we will less likely be backed up
behind a bunch of inodes that are waiting to be deleted, and we could
possibly free space before we need to get into the flushing logic which
will save us some latency.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-01-18 17:27:23 +01:00
Josef Bacik 3ec9a4c81c btrfs: run delayed iputs before committing
Delayed iputs means we can have final iputs of deleted inodes in the
queue, which could potentially generate a lot of pinned space that could
be free'd.  So before we decide to commit the transaction for ENOPSC
reasons, run the delayed iputs so that any potential space is free'd up.
If there is and we freed enough we can then commit the transaction and
potentially be able to make our reservation.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-01-18 17:27:21 +01:00
Josef Bacik 74d5d229b1 btrfs: wait on ordered extents on abort cleanup
If we flip read-only before we initiate writeback on all dirty pages for
ordered extents we've created then we'll have ordered extents left over
on umount, which results in all sorts of bad things happening.  Fix this
by making sure we wait on ordered extents if we have to do the aborted
transaction cleanup stuff.

generic/475 can produce this warning:

 [ 8531.177332] WARNING: CPU: 2 PID: 11997 at fs/btrfs/disk-io.c:3856 btrfs_free_fs_root+0x95/0xa0 [btrfs]
 [ 8531.183282] CPU: 2 PID: 11997 Comm: umount Tainted: G        W 5.0.0-rc1-default+ #394
 [ 8531.185164] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),BIOS rel-1.11.2-0-gf9626cc-prebuilt.qemu-project.org 04/01/2014
 [ 8531.187851] RIP: 0010:btrfs_free_fs_root+0x95/0xa0 [btrfs]
 [ 8531.193082] RSP: 0018:ffffb1ab86163d98 EFLAGS: 00010286
 [ 8531.194198] RAX: ffff9f3449494d18 RBX: ffff9f34a2695000 RCX:0000000000000000
 [ 8531.195629] RDX: 0000000000000002 RSI: 0000000000000001 RDI:0000000000000000
 [ 8531.197315] RBP: ffff9f344e930000 R08: 0000000000000001 R09:0000000000000000
 [ 8531.199095] R10: 0000000000000000 R11: ffff9f34494d4ff8 R12:ffffb1ab86163dc0
 [ 8531.200870] R13: ffff9f344e9300b0 R14: ffffb1ab86163db8 R15:0000000000000000
 [ 8531.202707] FS:  00007fc68e949fc0(0000) GS:ffff9f34bd800000(0000)knlGS:0000000000000000
 [ 8531.204851] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [ 8531.205942] CR2: 00007ffde8114dd8 CR3: 000000002dfbd000 CR4:00000000000006e0
 [ 8531.207516] Call Trace:
 [ 8531.208175]  btrfs_free_fs_roots+0xdb/0x170 [btrfs]
 [ 8531.210209]  ? wait_for_completion+0x5b/0x190
 [ 8531.211303]  close_ctree+0x157/0x350 [btrfs]
 [ 8531.212412]  generic_shutdown_super+0x64/0x100
 [ 8531.213485]  kill_anon_super+0x14/0x30
 [ 8531.214430]  btrfs_kill_super+0x12/0xa0 [btrfs]
 [ 8531.215539]  deactivate_locked_super+0x29/0x60
 [ 8531.216633]  cleanup_mnt+0x3b/0x70
 [ 8531.217497]  task_work_run+0x98/0xc0
 [ 8531.218397]  exit_to_usermode_loop+0x83/0x90
 [ 8531.219324]  do_syscall_64+0x15b/0x180
 [ 8531.220192]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
 [ 8531.221286] RIP: 0033:0x7fc68e5e4d07
 [ 8531.225621] RSP: 002b:00007ffde8116608 EFLAGS: 00000246 ORIG_RAX:00000000000000a6
 [ 8531.227512] RAX: 0000000000000000 RBX: 00005580c2175970 RCX:00007fc68e5e4d07
 [ 8531.229098] RDX: 0000000000000001 RSI: 0000000000000000 RDI:00005580c2175b80
 [ 8531.230730] RBP: 0000000000000000 R08: 00005580c2175ba0 R09:00007ffde8114e80
 [ 8531.232269] R10: 0000000000000000 R11: 0000000000000246 R12:00005580c2175b80
 [ 8531.233839] R13: 00007fc68eac61c4 R14: 00005580c2175a68 R15:0000000000000000

Leaving a tree in the rb-tree:

3853 void btrfs_free_fs_root(struct btrfs_root *root)
3854 {
3855         iput(root->ino_cache_inode);
3856         WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree));

CC: stable@vger.kernel.org
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
[ add stacktrace ]
Signed-off-by: David Sterba <dsterba@suse.com>
2019-01-18 17:24:19 +01:00
Josef Bacik 31890da0bf btrfs: handle delayed ref head accounting cleanup in abort
We weren't doing any of the accounting cleanup when we aborted
transactions.  Fix this by making cleanup_ref_head_accounting global and
calling it from the abort code, this fixes the issue where our
accounting was all wrong after the fs aborts.

The test generic/475 on a 2G VM can trigger the problems eg.:

  [ 8502.136957] WARNING: CPU: 0 PID: 11064 at fs/btrfs/extent-tree.c:5986 btrfs_free_block_grou +ps+0x3dc/0x410 [btrfs]
  [ 8502.148372] CPU: 0 PID: 11064 Comm: umount Not tainted 5.0.0-rc1-default+ #394
  [ 8502.150807] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.2-0-gf9626 +cc-prebuilt.qemu-project.org 04/01/2014
  [ 8502.154317] RIP: 0010:btrfs_free_block_groups+0x3dc/0x410 [btrfs]
  [ 8502.160623] RSP: 0018:ffffb1ab84b93de8 EFLAGS: 00010206
  [ 8502.161906] RAX: 0000000001000000 RBX: ffff9f34b1756400 RCX: 0000000000000000
  [ 8502.163448] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff9f34b1755400
  [ 8502.164906] RBP: ffff9f34b7e8c000 R08: 0000000000000001 R09: 0000000000000000
  [ 8502.166716] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9f34b7e8c108
  [ 8502.168498] R13: ffff9f34b7e8c158 R14: 0000000000000000 R15: dead000000000100
  [ 8502.170296] FS:  00007fb1cf15ffc0(0000) GS:ffff9f34bd400000(0000) knlGS:0000000000000000
  [ 8502.172439] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 8502.173669] CR2: 00007fb1ced507b0 CR3: 000000002f7a6000 CR4: 00000000000006f0
  [ 8502.175094] Call Trace:
  [ 8502.175759]  close_ctree+0x17f/0x350 [btrfs]
  [ 8502.176721]  generic_shutdown_super+0x64/0x100
  [ 8502.177702]  kill_anon_super+0x14/0x30
  [ 8502.178607]  btrfs_kill_super+0x12/0xa0 [btrfs]
  [ 8502.179602]  deactivate_locked_super+0x29/0x60
  [ 8502.180595]  cleanup_mnt+0x3b/0x70
  [ 8502.181406]  task_work_run+0x98/0xc0
  [ 8502.182255]  exit_to_usermode_loop+0x83/0x90
  [ 8502.183113]  do_syscall_64+0x15b/0x180
  [ 8502.183919]  entry_SYSCALL_64_after_hwframe+0x49/0xbe

Corresponding to

  release_global_block_rsv() {
  ...
  WARN_ON(fs_info->delayed_refs_rsv.reserved > 0);

CC: stable@vger.kernel.org
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
[ add log dump ]
Signed-off-by: David Sterba <dsterba@suse.com>
2019-01-18 17:10:04 +01:00
David Sterba 77b7aad195 Revert "btrfs: balance dirty metadata pages in btrfs_finish_ordered_io"
This reverts commit e73e81b6d0.

This patch causes a few problems:

- adds latency to btrfs_finish_ordered_io
- as btrfs_finish_ordered_io is used for free space cache, generating
  more work from btrfs_btree_balance_dirty_nodelay could end up in the
  same workque, effectively deadlocking

12260 kworker/u96:16+btrfs-freespace-write D
[<0>] balance_dirty_pages+0x6e6/0x7ad
[<0>] balance_dirty_pages_ratelimited+0x6bb/0xa90
[<0>] btrfs_finish_ordered_io+0x3da/0x770
[<0>] normal_work_helper+0x1c5/0x5a0
[<0>] process_one_work+0x1ee/0x5a0
[<0>] worker_thread+0x46/0x3d0
[<0>] kthread+0xf5/0x130
[<0>] ret_from_fork+0x24/0x30
[<0>] 0xffffffffffffffff

Transaction commit will wait on the freespace cache:

838 btrfs-transacti D
[<0>] btrfs_start_ordered_extent+0x154/0x1e0
[<0>] btrfs_wait_ordered_range+0xbd/0x110
[<0>] __btrfs_wait_cache_io+0x49/0x1a0
[<0>] btrfs_write_dirty_block_groups+0x10b/0x3b0
[<0>] commit_cowonly_roots+0x215/0x2b0
[<0>] btrfs_commit_transaction+0x37e/0x910
[<0>] transaction_kthread+0x14d/0x180
[<0>] kthread+0xf5/0x130
[<0>] ret_from_fork+0x24/0x30
[<0>] 0xffffffffffffffff

And then writepages ends up waiting on transaction commit:

9520 kworker/u96:13+flush-btrfs-1 D
[<0>] wait_current_trans+0xac/0xe0
[<0>] start_transaction+0x21b/0x4b0
[<0>] cow_file_range_inline+0x10b/0x6b0
[<0>] cow_file_range.isra.69+0x329/0x4a0
[<0>] run_delalloc_range+0x105/0x3c0
[<0>] writepage_delalloc+0x119/0x180
[<0>] __extent_writepage+0x10c/0x390
[<0>] extent_write_cache_pages+0x26f/0x3d0
[<0>] extent_writepages+0x4f/0x80
[<0>] do_writepages+0x17/0x60
[<0>] __writeback_single_inode+0x59/0x690
[<0>] writeback_sb_inodes+0x291/0x4e0
[<0>] __writeback_inodes_wb+0x87/0xb0
[<0>] wb_writeback+0x3bb/0x500
[<0>] wb_workfn+0x40d/0x610
[<0>] process_one_work+0x1ee/0x5a0
[<0>] worker_thread+0x1e0/0x3d0
[<0>] kthread+0xf5/0x130
[<0>] ret_from_fork+0x24/0x30
[<0>] 0xffffffffffffffff

Eventually, we have every process in the system waiting on
balance_dirty_pages(), and nobody is able to make progress on page
writeback.

The original patch tried to fix an OOM condition, that happened on 4.4 but no
success reproducing that on later kernels (4.19 and 4.20). This is more likely
a problem in OOM itself.

Link: https://lore.kernel.org/linux-btrfs/20180528054821.9092-1-ethanlien@synology.com/
Reported-by: Chris Mason <clm@fb.com>
CC: stable@vger.kernel.org # 4.18+
CC: ethanlien <ethanlien@synology.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-01-18 17:09:55 +01:00
Anders Roxell d8e346eb30 misc: pvpanic: fix warning implicit declaration
When building and have fragment CONFIG_NO_IOPORT_MAP enabled then the
following warning:

../drivers/misc/pvpanic.c: In function ‘pvpanic_walk_resources’:
../drivers/misc/pvpanic.c:73:10: error: implicit declaration of
 function ‘ioport_map’; did you mean ‘ioremap’?
 [-Werror=implicit-function-declaration]
   base = ioport_map(r.start, resource_size(&r));
          ^~~~~~~~~~

Since commmit 5d32a66541 ("PCI/ACPI: Allow ACPI to be built without
CONFIG_PCI set"), its now possible to have ACPI enabled without haveing
PCI enabled. However, the pvpanic driver depends on HAS_IOPORT_MAP or
HAVE_IOREMAP_PROT when ACPI is enabled. It was fine until
commit 725eba2928 ("misc/pvpanic: add MMIO support") got added.
Rework so that we do a extra check ifdef CONFIG_HAS_IOPORT_MAP.

Fixes: 5d32a66541 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 16:42:05 +01:00
Gustavo A. R. Silva 701956d401 char/mwave: fix potential Spectre v1 vulnerability
ipcnum is indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.

This issue was detected with the help of Smatch:

drivers/char/mwave/mwavedd.c:299 mwave_ioctl() warn: potential spectre issue 'pDrvData->IPCs' [w] (local cap)

Fix this by sanitizing ipcnum before using it to index pDrvData->IPCs.

Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].

[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2

Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 16:42:05 +01:00
Marc Zyngier 8208d1708b irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size
The way we allocate events works fine in most cases, except
when multiple PCI devices share an ITS-visible DevID, and that
one of them is trying to use MultiMSI allocation.

In that case, our allocation is not guaranteed to be zero-based
anymore, and we have to make sure we allocate it on a boundary
that is compatible with the PCI Multi-MSI constraints.

Fix this by allocating the full region upfront instead of iterating
over the number of MSIs. MSI-X are always allocated one by one,
so this shouldn't change anything on that front.

Fixes: b48ac83d6b ("irqchip: GICv3: ITS: MSI support")
Cc: stable@vger.kernel.org
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-01-18 14:35:38 +00:00
Takashi Iwai b3c4014c2b ASoC: Fixes for v5.0
Quite a big batch of fixes here.  There's a couple of things going on,
 the main one is that we found some issues with not deferring probe when
 we should, causing us to skip some driver initialization.  The fixes for
 this then in turn exposed some issues with how we were searching for
 components which had previously gone unnoticed due to the original
 issue.
 
 There's also been the normal driver specific stuff and there's been what
 looks like several batches of automated scanning for issues which have
 generated quite a large set of smaller fixes for potential crashes and
 missed error handling.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlxBy/wTHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0HNQB/wI7qx/bNGOX1p2C0M5ENdgsMcYDpMh
 OHD073hL4wDkNJ/O2josnceCtrPUS5tuOxmx765IFXrAR4FWlNezQL4dHwTNGfG9
 Femd6iAxv47lC2fROpuHfB0j32LIjVrHLYDG0wAiDvteXK2VrGbj8vedfWqflOBj
 PX2kqkkgWfSCTrEYdrE09ExYoYKYdEqU/LEKFmIUnMuXc/HNHLo6e1sFNzTo8DIo
 g5P8nQ//Qgi1U9UWMabKjy4lYL2Tcid9jcNlz0QIffK2qwIEpVBeuhqJaT4sQrf5
 G51UrSk2y4lJ0t9WXv1SwQTDi2slCCGcOHA3fylGkJl1cxgOFMAR37Xs
 =ev1L
 -----END PGP SIGNATURE-----

Merge tag 'asoc-fix-v5.0-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.0

Quite a big batch of fixes here.  There's a couple of things going on,
the main one is that we found some issues with not deferring probe when
we should, causing us to skip some driver initialization.  The fixes for
this then in turn exposed some issues with how we were searching for
components which had previously gone unnoticed due to the original
issue.

There's also been the normal driver specific stuff and there's been what
looks like several batches of automated scanning for issues which have
generated quite a large set of smaller fixes for potential crashes and
missed error handling.
2019-01-18 15:17:17 +01:00
Gustavo A. R. Silva e25df7812c misc: ibmvsm: Fix potential NULL pointer dereference
There is a potential NULL pointer dereference in case kzalloc()
fails and returns NULL.

Fix this by adding a NULL check on *session*

Also, update the function header with information about the
expected return on failure and remove unnecessary variable rc.

This issue was detected with the help of Coccinelle.

Fixes: 0eca353e7a ("misc: IBM Virtual Management Channel Driver (VMC)")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 14:14:14 +01:00
Wei Yongjun 7e7ca7744a binderfs: fix error return code in binderfs_fill_super()
Fix to return a negative error code -ENOMEM from the new_inode() and
d_make_root() error handling cases instead of 0, as done elsewhere in
this function.

Fixes: 849d540ddf ("binderfs: implement "max" mount option")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Christian Brauner <christian@brauner.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 14:14:14 +01:00
Nicolas Pitre bfd8d8fe98 vgacon: unconfuse vc_origin when using soft scrollback
When CONFIG_VGACON_SOFT_SCROLLBACK is selected, the VGA display memory
index and vc_visible_origin don't change when scrollback is activated.
The actual screen content is saved away and the scrollbackdata is copied
over it. However the vt code, and /dev/vcs devices in particular, still
expect vc_origin to always point at the actual screen content not the
displayed scrollback content.

So adjust vc_origin to point at the saved screen content when scrollback
is active and set it back to vc_visible_origin when restoring the screen.

This fixes /dev/vcsa<n> that return scrollback content when they
shouldn't (onli /dev/vcsa without a number should), and also fixes
/dev/vcsu that should return scrollback content when scrollback is
active but currently doesn't.

An unnecessary call to vga_set_mem_top() is also removed.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:45:22 +01:00
Nicolas Pitre 0c9b1965fa vt: invoke notifier on screen size change
User space using poll() on /dev/vcs devices are not awaken when a
screen size change occurs. Let's fix that.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:42:58 +01:00
Nicolas Pitre 7e1d226345 vt: always call notifier with the console lock held
Every invocation of notify_write() and notify_update() is performed
under the console lock, except for one case. Let's fix that.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:42:58 +01:00
Nicolas Pitre 6609cff65c vt: make vt_console_print() compatible with the unicode screen buffer
When kernel messages are printed to the console, they appear blank on
the unicode screen. This is because vt_console_print() is lacking a call
to vc_uniscr_putc(). However the later function assumes vc->vc_x is
always up to date when called, which is not the case here as
vt_console_print() uses it to mark the beginning of the display update.

This patch reworks (and simplifies) vt_console_print() so that vc->vc_x
is always valid and keeps the start of display update in a local variable
instead, which finally allows for adding the missing vc_uniscr_putc()
call.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:42:58 +01:00
Paul Fulghum fc01d8c61c tty/n_hdlc: fix __might_sleep warning
Fix __might_sleep warning[1] in tty/n_hdlc.c read due to copy_to_user
call while current is TASK_INTERRUPTIBLE.  This is a false positive
since the code path does not depend on current state remaining
TASK_INTERRUPTIBLE.  The loop breaks out and sets TASK_RUNNING after
calling copy_to_user.

This patch supresses the warning by setting TASK_RUNNING before calling
copy_to_user.

[1] https://syzkaller.appspot.com/bug?id=17d5de7f1fcab794cb8c40032f893f52de899324

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Reported-by: syzbot <syzbot+c244af085a0159d22879@syzkaller.appspotmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: stable <stable@vger.kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:27:54 +01:00
He Zhe 352c4cf40c serial: 8250: Fix serial8250 initialization crash
The initialization code of interrupt backoff work might reference NULL
pointer and cause the following crash, if no port was found.

[   10.017727] CPU 0 Unable to handle kernel paging request at virtual address 000001b0, epc == 807088e0, ra == 8070863c
---- snip ----
[   11.704470] [<807088e0>] serial8250_register_8250_port+0x318/0x4ac
[   11.747251] [<80708d74>] serial8250_probe+0x148/0x1c0
[   11.789301] [<80728450>] platform_drv_probe+0x40/0x94
[   11.830515] [<807264f8>] really_probe+0xf8/0x318
[   11.870876] [<80726b7c>] __driver_attach+0x110/0x12c
[   11.910960] [<80724374>] bus_for_each_dev+0x78/0xcc
[   11.951134] [<80725958>] bus_add_driver+0x200/0x234
[   11.989756] [<807273d8>] driver_register+0x84/0x148
[   12.029832] [<80d72f84>] serial8250_init+0x138/0x198
[   12.070447] [<80100e6c>] do_one_initcall+0x5c/0x2a0
[   12.110104] [<80d3a208>] kernel_init_freeable+0x370/0x484
[   12.150722] [<80a49420>] kernel_init+0x10/0xf8
[   12.191517] [<8010756c>] ret_from_kernel_thread+0x14/0x1c

This patch makes sure the initialization code can be reached only if a port
is found.

Fixes: 6d7f677a2a ("serial: 8250: Rate limit serial port rx interrupts during input overruns")
Signed-off-by: He Zhe <zhe.he@windriver.com>
Reviewed-by: Darwin Dingel <darwin.dingel@alliedtelesis.co.nz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:03:47 +01:00
Samir Virmani aff9cf5955 uart: Fix crash in uart_write and uart_put_char
We were experiencing a crash similar to the one reported as part of
commit:a5ba1d95e46e ("uart: fix race between uart_put_char() and
uart_shutdown()") in our testbed as well. We continue to observe the same
crash after integrating the commit a5ba1d95e4 ("uart: fix race between
uart_put_char() and uart_shutdown()")

On reviewing the change, the port lock should be taken prior to checking for
if (!circ->buf) in fn. __uart_put_char and other fns. that update the buffer
uart_state->xmit.

Traceback:

[11/27/2018 06:24:32.4870] Unable to handle kernel NULL pointer dereference
                           at virtual address 0000003b

[11/27/2018 06:24:32.4950] PC is at memcpy+0x48/0x180
[11/27/2018 06:24:32.4950] LR is at uart_write+0x74/0x120
[11/27/2018 06:24:32.4950] pc : [<ffffffc0002e6808>]
                           lr : [<ffffffc0003747cc>] pstate: 000001c5
[11/27/2018 06:24:32.4950] sp : ffffffc076433d30
[11/27/2018 06:24:32.4950] x29: ffffffc076433d30 x28: 0000000000000140
[11/27/2018 06:24:32.4950] x27: ffffffc0009b9d5e x26: ffffffc07ce36580
[11/27/2018 06:24:32.4950] x25: 0000000000000000 x24: 0000000000000140
[11/27/2018 06:24:32.4950] x23: ffffffc000891200 x22: ffffffc01fc34000
[11/27/2018 06:24:32.4950] x21: 0000000000000fff x20: 0000000000000076
[11/27/2018 06:24:32.4950] x19: 0000000000000076 x18: 0000000000000000
[11/27/2018 06:24:32.4950] x17: 000000000047cf08 x16: ffffffc000099e68
[11/27/2018 06:24:32.4950] x15: 0000000000000018 x14: 776d726966205948
[11/27/2018 06:24:32.4950] x13: 50203a6c6974755f x12: 74647075205d3333
[11/27/2018 06:24:32.4950] x11: 3a35323a36203831 x10: 30322f37322f3131
[11/27/2018 06:24:32.4950] x9 : 5b205d303638342e x8 : 746164206f742070
[11/27/2018 06:24:32.4950] x7 : 7520736920657261 x6 : 000000000000003b
[11/27/2018 06:24:32.4950] x5 : 000000000000817a x4 : 0000000000000008
[11/27/2018 06:24:32.4950] x3 : 2f37322f31312a5b x2 : 000000000000006e
[11/27/2018 06:24:32.4950] x1 : ffffffc0009b9cf0 x0 : 000000000000003b

[11/27/2018 06:24:32.4950] CPU2: stopping
[11/27/2018 06:24:32.4950] CPU: 2 PID: 0 Comm: swapper/2 Tainted: P      D    O    4.1.51 #3
[11/27/2018 06:24:32.4950] Hardware name: Broadcom-v8A (DT)
[11/27/2018 06:24:32.4950] Call trace:
[11/27/2018 06:24:32.4950] [<ffffffc0000883b8>] dump_backtrace+0x0/0x150
[11/27/2018 06:24:32.4950] [<ffffffc00008851c>] show_stack+0x14/0x20
[11/27/2018 06:24:32.4950] [<ffffffc0005ee810>] dump_stack+0x90/0xb0
[11/27/2018 06:24:32.4950] [<ffffffc00008e844>] handle_IPI+0x18c/0x1a0
[11/27/2018 06:24:32.4950] [<ffffffc000080c68>] gic_handle_irq+0x88/0x90

Fixes: a5ba1d95e4 ("uart: fix race between uart_put_char() and uart_shutdown()")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Samir Virmani <samir@embedur.com>
Acked-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 13:03:47 +01:00
Greg Kroah-Hartman 4f9b838927 USB-serial fixes for 5.0-rc3
Here's a fix for the new ftdi gpio support, which failed to take
 autosuspend into account, and a patch adding missing SPDX identifiers to
 the keyspan headers.
 
 Included are also some new device ids.
 
 All but the SPDX patch have been in linux-next with no reported issues.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQQHbPq+cpGvN/peuzMLxc3C7H1lCAUCXEGnxAAKCRALxc3C7H1l
 CDWIAP9c3kzZLIxhVLyBpLaBgLQftCov5n0oIfNvbrFak3NZIQEA1R2Lvd/b5wbQ
 RS5ZaPzLIeeIUHA0YcavuMjdF3na5QM=
 =J9iV
 -----END PGP SIGNATURE-----

Merge tag 'usb-serial-5.0-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for 5.0-rc3

Here's a fix for the new ftdi gpio support, which failed to take
autosuspend into account, and a patch adding missing SPDX identifiers to
the keyspan headers.

Included are also some new device ids.

All but the SPDX patch have been in linux-next with no reported issues.

Signed-off-by: Johan Hovold <johan@kernel.org>

* tag 'usb-serial-5.0-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: keyspan_usa: add proper SPDX lines for .h files
  USB: serial: pl2303: add new PID to support PL2303TB
  USB: serial: ftdi_sio: fix GPIO not working in autosuspend
  USB: serial: simple: add Motorola Tetra TPG2200 device id
2019-01-18 12:58:20 +01:00
Greg Kroah-Hartman af707f58d8 phy: for 5.0 -rc
*) Fix de-reference before null check in TI's phy-gmii-sel driver
  *) Fix build breakage in AHCI platform driver (patch was merged in AHCI
     before dependent patches were merged in PHY layer)
  *) Fix the power on error path in ath79-usb PHY driver
  *) Fix the reset binding name to match the DT binding documentation in
     ath79-usb PHY driver.
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCgAsFiEEUXMr/TfP2p4suIY5Dlx4XIBNgtkFAlxBkQAOHGtpc2hvbkB0
 aS5jb20ACgkQDlx4XIBNgtlBrxAAjXJ3QMXQKb89fhLJUVwT2TmOjiGWy8xOnmuJ
 iB4zsiq9x4kwo0vpbVA9Grd9Ided6CFwMVroOzObCLFsflffHZA6tPAmSlK7SuqG
 /QVhy0Mp3c8RbEOgw1INzKf6Hw4wKoLOtg/t7YCZEmKJHYKdMVU0HPYjJHxO9bXH
 pqRZRBr4t5DPBnaqQ3QacOQ8JRg/uPmUkf1ekZPVU+VYJJBeadKIsmkGGPS40C4M
 P3pAWMLoM/yA2DM2TGvmCHWTLBhGInLZUzGztkznic0z3CSwNL9lJw2HLSUYZYsC
 NeC3Ewg+rk5col2Ku06guSo6oemJNBamW4T8R89CB7F5K1XUujhdUn2LhH5KDCoQ
 XnUbbBCpgmNoo/iWd4+ZbFMSGhrRFZJSgV7ZDKSTY1GZ2k1n99Q3SEJ6Iu/gRWk7
 Gloh+Y0hN70tq/JX/immzUHW8nWWlSI2aJISbi7Mgcj2iKVPUY0iBPRBFrS4XxfW
 7iIigFtAfI6tPbkn0tlRNMu3QvrOWgTkNmjWO/aukfQcMCVgSbDdmbqR53GkAMqJ
 0viRDHE6gLmyOkkL09nt1qBubECIbZUGD/KUHJQS0LaHikx/eC3FnwrbyhNK0Nyq
 rEpyRUORg4KjJB28d1t/UdYQS32tbJ9vw7ohPK8HsMyUQwiws9ADy01qSByfrgwq
 /wdyVeQ=
 =8rVH
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-5.0-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

phy: for 5.0 -rc

 *) Fix de-reference before null check in TI's phy-gmii-sel driver
 *) Fix build breakage in AHCI platform driver (patch was merged in AHCI
    before dependent patches were merged in PHY layer)
 *) Fix the power on error path in ath79-usb PHY driver
 *) Fix the reset binding name to match the DT binding documentation in
    ath79-usb PHY driver.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

* tag 'phy-for-5.0-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy:
  phy: ath79-usb: Fix the main reset name to match the DT binding
  phy: ath79-usb: Fix the power on error path
  phy: fix build breakage: add PHY_MODE_SATA
  phy: ti: ensure priv is not null before dereferencing it
2019-01-18 12:54:46 +01:00
Rafael J. Wysocki 11ee2a3808 Merge branch 'acpi-pci'
* acpi-pci:
  drivers: thermal: int340x_thermal: Make PCI dependency explicit
  x86/intel/lpss: Make PCI dependency explicit
  platform/x86: apple-gmux: Make PCI dependency explicit
  platform/x86: intel_pmc: Make PCI dependency explicit
  platform/x86: intel_ips: make PCI dependency explicit
  vga-switcheroo: make PCI dependency explicit
  ata: pata_acpi: Make PCI dependency explicit
  ACPI / LPSS: Make PCI dependency explicit
2019-01-18 11:17:16 +01:00
Greg Kroah-Hartman 527c1e567e USB: serial: keyspan_usa: add proper SPDX lines for .h files
The keyspan_usa??msg.h files are under a BSD-3 style license, so
properly label them as such with a SPDX line at the top of the file.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2019-01-18 11:09:32 +01:00
Nathan Chancellor 97715058b7 staging: rtl8723bs: Fix build error with Clang when inlining is disabled
When CONFIG_NO_AUTO_INLINE was present in linux-next (which added
'-fno-inline-functions' to KBUILD_CFLAGS), an allyesconfig build with
Clang failed at the modpost stage:

ERROR: "is_broadcast_mac_addr" [drivers/staging/rtl8723bs/r8723bs.ko] undefined!
ERROR: "is_zero_mac_addr" [drivers/staging/rtl8723bs/r8723bs.ko] undefined!
ERROR: "is_multicast_mac_addr" [drivers/staging/rtl8723bs/r8723bs.ko] undefined!

These functions were marked as extern inline, meaning that if inlining
doesn't happen, the function will be undefined, as it is above.

This happens to work with GCC because the '-fno-inline-functions' option
respects the __inline attribute so all instances of these functions are
inlined as expected and the definition doesn't actually matter. However,
with Clang and '-fno-inline-functions', a function has to be marked with
the __always_inline attribute to be considered for inlining, which none
of these functions are. Clang tries to find the symbol definition
elsewhere as it was told and fails, which trickles down to modpost.

To make sure that this code compiles regardless of compiler and make the
intention of the code clearer, use 'static' to ensure these functions
are always defined, regardless of inlining. Additionally, silence a
checkpatch warning by switching from '__inline' to 'inline'.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 10:28:44 +01:00
Masahiro Yamada d311e0c27b mtd: rawnand: denali: get ->setup_data_interface() working again
Commit 7a08dbaedd ("mtd: rawnand: Move ->setup_data_interface() to
nand_controller_ops") missed to invert the if-conditonal for denali.
Since then, the Denali NAND driver cannnot invoke setup_data_interface.

Fixes: 7a08dbaedd ("mtd: rawnand: Move ->setup_data_interface() to nand_controller_ops")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
2019-01-18 10:27:01 +01:00
Luc Van Oostenryck 01eeb927bb mtd: nand: jz4740: fix '__iomem *' vs. '* __iomem'
The function jz_nand_ioremap_resource() needs a pointer to an __iomem
pointer as its last argument but this argument is declared as:
	void * __iomem *base

Fix this by using the correct declaration:
	void __iomem **base
which then also removes the following Sparse's warnings:
  282:15: warning: incorrect type in assignment (different address spaces)
  282:15:    expected void *[noderef] <asn:2>
  282:15:    got void [noderef] <asn:2> *
  322:57: warning: incorrect type in argument 4 (different address spaces)
  322:57:    expected void *[noderef] <asn:2> *base
  322:57:    got void [noderef] <asn:2> **
  402:67: warning: incorrect type in argument 4 (different address spaces)
  402:67:    expected void *[noderef] <asn:2> *base
  402:67:    got void [noderef] <asn:2> **

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
2019-01-18 10:26:46 +01:00
Lubomir Rintel 70d0ba4cf7 USB: EHCI: ehci-mv: add MODULE_DEVICE_TABLE
This fixes autoloading the module by the OF compatible string.

Fixes: 813e18b18a ("USB: EHCI: ehci-mv: add DT support")
Cc: stable@vger.kernel.org
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 10:07:05 +01:00
Christian Lamparter 91f7d2e898 USB: leds: fix regression in usbport led trigger
The patch "usb: simplify usbport trigger" together with "leds: triggers:
add device attribute support" caused an regression for the usbport
trigger. it will no longer enumerate any active usb hub ports under the
"ports" directory in the sysfs class directory, if the usb host drivers
are fully initialized before the usbport trigger was loaded.

The reason is that the usbport driver tries to register the sysfs
entries during the activate() callback. And this will fail with -2 /
ENOENT because the patch "leds: triggers: add device attribute support"
made it so that the sysfs "ports" group was only being added after the
activate() callback succeeded.

This version of the patch reverts parts of the "usb: simplify usbport
trigger" patch and restores usbport trigger's functionality.

Fixes: 6f7b0bad88 ("usb: simplify usbport trigger")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:55:05 +01:00
Peter Chen 8ff396fe56 usb: chipidea: fix static checker warning for NULL pointer
During the static checker, "data->usbmisc_data" may be NULL.
Fix it by adding this pointer judgement before using.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:35:33 +01:00
Shuah Khan a817c59e82 MAINTAINERS: email address update in MAINTAINERS entries
Update email address in MAINTAINERS entries.

Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:35:33 +01:00
Greg Kroah-Hartman fa5762fca8 USB: usbip: delete README file
The README file ni the drivers/usb/usbip/ directory is not needed
anymore, so just delete it.

Cc: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-18 09:35:33 +01:00
Greg Kroah-Hartman 575088f600 usb: fixes for v5.0-rc2
Few minor bug fixes on dwc3: adding a missing synchronize_irq() to
 prevent a very rare spurious interrupt during suspend; clearing
 needs_extra_trb flag to prevent it from being left erroneously set and
 confusing the driver when the request is recycled; initializing
 link_to a sensible default during init.
 
 Apart from these, one minor fix on dwc2 and another on f_sourcesink.c
 -----BEGIN PGP SIGNATURE-----
 
 iQJRBAABCAA7FiEElLzh7wn96CXwjh2IzL64meEamQYFAlxBc/YdHGZlbGlwZS5i
 YWxiaUBsaW51eC5pbnRlbC5jb20ACgkQzL64meEamQb9WA//SfSbySwKTlEcY3Yj
 /m8H63djJfkSjK9DWWWOot8Lx2E48gfxEp/iy/Zg6gMJWVZffHWUEh4WRMcID/PV
 4f6JhMot/hY0pfMIC+6pj+UIMP4oX+DUEs3/FsSuY1xXJPKAXf5+jwojxno+CpQ2
 e0aCPgyYG0hrCfA2DjsqtFjqw5dJQs6F8IdtlSOPw8aKXSTykQgK6p0NplFN5QDT
 idvrAhlE6P+fbWGHoGr2pCdF38ANK7G5m2zZ2co0Mr6JmtwmooxnxBNpSfkXnD8G
 2RsYA6ckzTSQLEOodlEU/U18qTzKzViAZaEIVTFQKDpiYgeP9Xeix8dUg2i/gHP0
 wZ4LRuElc/0VKndNTAuGcItlq6gk967kxieH9ZiUcrLgjh61cA6fECzq8nQbc8QB
 Xm3TLDAKMh4afprxmfGgk+cPlaT55OzYyYgsjXfOe5VileFcH2FgY4fzfuAeRdUi
 +gWJjR41ZpFfs2GMzSlByQktNpeBDQD4Az2MXXyVHXH+uuocfY/U5MBpQjlJH8Sv
 2lPuEEZ9zErnw5HfDcgO9vFfcqNr4tTqtGoibTTDbHyP2zu9PPbKM2R9Fx6ZesUV
 UUc5twiPvx6yyvCXYbcqohxV3FOnw5WgrqqV88iUf+elzvTNJTrIHjq9Fk9V0S7t
 WfS1FZ2TdStnDzLBH2M8+lQDD7w=
 =d/vD
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v5.0-rc2

Few minor bug fixes on dwc3: adding a missing synchronize_irq() to
prevent a very rare spurious interrupt during suspend; clearing
needs_extra_trb flag to prevent it from being left erroneously set and
confusing the driver when the request is recycled; initializing
link_to a sensible default during init.

Apart from these, one minor fix on dwc2 and another on f_sourcesink.c

* tag 'fixes-for-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: dwc2: gadget: Fix Remote Wakeup interrupt bit clearing
  usb: gadget: Potential NULL dereference on allocation error
  usb: dwc3: gadget: Fix the uninitialized link_state when udc starts
  usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup
  usb: dwc3: gadget: synchronize_irq dwc irq in suspend
2019-01-18 09:32:26 +01:00
Aaron Hill 129699bb8c drivers: thermal: int340x_thermal: Fix sysfs race condition
Changes since V1:
* Use dev_info instead of printk
* Use dev_warn instead of BUG_ON

Previously, sysfs_create_group was called before all initialization had
fully run - specifically, before pci_set_drvdata was called. Since the
sysctl group is visible to userspace as soon as sysfs_create_group
returns, a small window of time existed during which a process could read
from an uninitialized/partially-initialized device.

This commit moves the creation of the sysctl group to after all
initialized is completed. This ensures that it's impossible for
userspace to read from a sysctl file before initialization has fully
completed.

To catch any future regressions, I've added a check to ensure
that proc_thermal_emum_mode is never PROC_THERMAL_NONE when a process
tries to read from a sysctl file. Previously, the aforementioned race
condition could result in the 'else' branch
running while PROC_THERMAL_NONE was set,
leading to a null pointer deference.

Signed-off-by: Aaron Hill <aa1ronham@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-01-18 15:23:04 +08:00
Yang Wei bf97403ac4 macvlan: replace kfree_skb by consume_skb for drop profiles
Replace the kfree_skb() by consume_skb() to be drop monitor(dropwatch,
perf) friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-17 22:09:09 -08:00
Yang Wei 87fff3cacd neighbour: Do not perturb drop profiles when neigh_probe
Replace the kfree_skb() by consume_skb() to be drop monitor(dropwatch,
perf) friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-17 22:08:14 -08:00
Lendacky, Thomas 5ab3121bee amd-xgbe: Fix mdio access for non-zero ports and clause 45 PHYs
The XGBE hardware has support for performing MDIO operations using an
MDIO command request. The driver mistakenly uses the mdio port address
as the MDIO command request device address instead of the MDIO command
request port address. Additionally, the driver does not properly check
for and create a clause 45 MDIO command.

Check the supplied MDIO register to determine if the request is a clause
45 operation (MII_ADDR_C45). For a clause 45 operation, extract the device
address and register number from the supplied MDIO register and use them
to set the MDIO command request device address and register number fields.
For a clause 22 operation, the MDIO request device address is set to zero
and the MDIO command request register number is set to the supplied MDIO
register. In either case, the supplied MDIO port address is used as the
MDIO command request port address.

Fixes: 732f2ab7af ("amd-xgbe: Add support for MDIO attached PHYs")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Tested-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-17 22:06:54 -08:00
Camelia Groza 40f89ebfbd net: phy: add missing phy driver features
The phy drivers for CS4340 and TN2020 are missing their
features attributes. Add them.

Fixes: 719655a149 ("net: phy: Replace phy driver features u32 with link_mode bitmap")
Reported-by: Scott Wood <oss@buserror.net>
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-17 22:03:25 -08:00