Commit graph

932,869 commits

Author SHA1 Message Date
Sasha Neftin
2e39d2c8ff igc: Remove copper fiber switch control
i225 device support copper mode only
PHY signal detect indication for copper fiber switch
not applicable to i225 part

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Sasha Neftin
635071e2c4 igc: Enable NETIF_F_HW_TC flag
This assignment of the feature NETIF_F_HW_TC
occurs prior to the initial setup of the local
hw_features variable.

This ensures that NETIF_F_HW_TC are marked
as user changeable, and also enables it by
default when the driver loads.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Sasha Neftin
64900e8ff5 igc: Fix double definition
IGC_START_ITR has beed defined twice
This patch come to fix it

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Andre Guedes
b8a61ea15c igc: Fix overwrites when dumping registers
This patch fixes some register overwriting when dumping registers via
ethtool.

We have a total of 16 RAL registers, starting at offset 139. So RAH
offset should be 139 + 16 = 155, not 145. As result some RAL registers
are overwritten. Likewise, RAH registers are also overwritten by TDBAL,
TDBAH, TDLEN, and TDH registers.

To fix this bug while preserving the ABI, this patch re-writes RAL and
RAH registers at the end of 'regs_buff' and bumps regs->version. It also
removes some pointless comments in the middle of igc_set_regs().

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Sasha Neftin
89d35511f3 igc: Remove forward declaration
Move igc_adapter and igc_ring structures up to avoid
forward declaration
It is not necessary to forward declare these structures

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Sasha Neftin
3d1ce3fa83 igc: Remove unused CTRL_EXT_LINK_MODE_MASK
We support only copper mode
Not applicable for i225 parts

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Sasha Neftin
f1fd455982 igc: Remove unused MDIC_DEST mask
Formally Destination bit should be kept reserved to
support legacy drivers and ignore on write/read
operation
Not applicable for i225 parts

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Kees Cook
a34c7f5156 e1000: Distribute switch variables for initialization
Variables declared in a switch statement before any case statements
cannot be automatically initialized with compiler instrumentation (as
they are not part of any execution flow). With GCC's proposed automatic
stack variable initialization feature, this triggers a warning (and they
don't get initialized). Clang's automatic stack variable initialization
(via CONFIG_INIT_STACK_ALL=y) doesn't throw a warning, but it also
doesn't initialize such variables[1]. Note that these warnings (or silent
skipping) happen before the dead-store elimination optimization phase,
so even when the automatic initializations are later elided in favor of
direct initializations, the warnings remain.

To avoid these problems, move such variables into the "case" where
they're used or lift them up into the main function body.

drivers/net/ethernet/intel/e1000/e1000_main.c: In function ‘e1000_xmit_frame’:
drivers/net/ethernet/intel/e1000/e1000_main.c:3143:18: warning: statement will never be executed [-Wswitch-unreachable]
 3143 |     unsigned int pull_size;
      |                  ^~~~~~~~~

[1] https://bugs.llvm.org/show_bug.cgi?id=44916

Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Vinicius Costa Gomes
82faa9b799 igc: Add support for ETF offloading
This adds support for ETF offloading for the i225 controller.

For i225, the LaunchTime feature is almost a subset of the Qbv
feature. The main change from the i210 is that the launchtime of each
packet is specified as an offset applied to the BASET register. BASET
is automatically incremented each cycle.

For i225, the approach chosen is to re-use most of the setup used for
taprio offloading. With a few changes:

 - The more or less obvious one is that when ETF is enabled, we should
 set add the expected launchtime to the (advanced) transmit
 descriptor;

 - The less obvious, is that when taprio offloading is not enabled, we
 add a dummy schedule (all queues are open all the time, with a cycle
 time of 1 second).

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Vinicius Costa Gomes
ec50a9d437 igc: Add support for taprio offloading
Adds support for translating taprio schedules into i225 cycles. This
will allow schedules to run in the hardware, making the schedules
enforcement more precise and saving CPU time.

Right now, the only simple schedules are allowed, complex schedules are
rejected. "simple" in this context are schedules that each HW queue is
opened and closed only once in each cycle.

Changing schedules is still not supported as well.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:24 -07:00
Sasha Neftin
34428dff36 igc: Add GSO partial support
Partial generic segmentation offload is a hybrid between TSO and GSO.
What is effectively does is take advantage of certain traits of TCP and
tunnels so that instead of having to rewrite the packet headers for each
segment only in the inner-most transport header and possible the outer-most
network header need to be updated.
This allows devices that do not support tunnel offload or tunnels
offloads with checksum to still make use of segmentation.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17 10:19:23 -07:00
Linus Torvalds
a2286a449b io_uring-5.7-2020-04-17
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl6ZxtgQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpg97EACvs/Vm50z9qAr9qJQKnWOpxUf9tYLNFhf2
 olOe8No4DgDB5kAvUdexozvV/QMRXMN2SI9CpwXJ98+ZTt/VU8dcDt1hM5DooBRL
 VWUADVeojRR362ijqdL1x7wt41pMLFt5UiAFE2VdAH04jcTV7VAVl15/ZvEhGSOX
 o86xsR06IqjhHPGQnZvY34Qyk3AKYoA9y/doKhIrTyfgaXiHsMMJPZrQhgEuPI9C
 D3i1/51FCJdKTm9c0hTz/CkhNxYvRmz91Ywjnm8wyZwXBZJJHm4ZDpDpbXijyLda
 clkLdmnnD1fkm1mkId/55sCS//iR8Um9XXsejQ4W6iSaY7OLfqyVXfuct3Rbwi2D
 ut85XvZFOiCP9M/5VaB9qFIDb9VF1nGC1qptYEmt8YrmgD+0n+4aPq83/2a+KYAs
 7RQcH6twpDZpR/HDLcAcq9zpMz9B1O2QsokgXUgkZz0QVGQqZgGXYeZgMtUud2Rl
 i3UGrmtl/Pp23A1z2NT0sPCZPopo0nVLu2OLZwL4t5PAJbV1CrIp2Q64XzOM+56U
 3ExibVR7/s0BHjBtSPS//vSphGR6UT1NLzowtEf94jBdxIdvoC5eztycmxcCBtrc
 TNcOjKsYDRDXiNS5NDnQbrc8xLXCd4mXhyRphWt+vNp/5TmA4tsqe9bZzUDm+4v/
 CYr0nGJf7Q==
 =n9hr
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-5.7-2020-04-17' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - wrap up the init/setup cleanup (Pavel)

 - fix some issues around deferral sequences (Pavel)

 - fix splice punt check using the wrong struct file member

 - apply poll re-arm logic for pollable retry too

 - pollable retry should honor cancelation

 - fix setup time error handling syzbot reported crash

 - restore work state when poll is canceled

* tag 'io_uring-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
  io_uring: don't count rqs failed after current one
  io_uring: kill already cached timeout.seq_offset
  io_uring: fix cached_sq_head in io_timeout()
  io_uring: only post events in io_poll_remove_all() if we completed some
  io_uring: io_async_task_func() should check and honor cancelation
  io_uring: check for need to re-wait in polled async handling
  io_uring: correct O_NONBLOCK check for splice punt
  io_uring: restore req->work when canceling poll request
  io_uring: move all request init code in one place
  io_uring: keep all sqe->flags in req->flags
  io_uring: early submission req fail code
  io_uring: track mm through current->mm
  io_uring: remove obsolete @mm_fault
2020-04-17 10:12:26 -07:00
Linus Torvalds
bf9196d51f block-5.7-2020-04-17
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl6ZxugQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpvGVEACFQ/l7YtzYov9YyffhfFU77QmXoTeaW3M5
 p/Yz3QFphRLROs1w9n9k/DjtFgfYfAlOrWRDss9tuG4Nr/jt3i6g8duAkiQXV7M/
 FJ9urg7Y+766XChGqPL6HhTQmTxbzXp4L6nD9EUG9X/dzl4IpyD8oT4nwbOb022W
 zWZPApDwglZeuD7plrrnrLqpXrIGMyzjob7AQDM+FoqzUAsnsZ4SEheIrNoNqe8f
 m7+ZxYWcAOy8fb9FQJASnA5mj+id03nNVc/DAZQrhzJdwC+3O4QElgXO/KaPic8X
 sUHrmKCLA72WezgsZB1cF4IovANvz+7ANmrORfRQ2Sedsxm2Y+URQ9pB7IMH9mMc
 fsdbwlhoeeqKSQ5JhTvg4QUsD/yhDq/cpAx68y9N3bHNwS6NjnYi1Us1S1yyXH27
 zCK54YsHzpmd/iLi8PbewEFifYRTMGztPNsCeaZnNcqONogZAquboEDXGdv9uypX
 bPqd3i7nYDoLhgSZ93yF++QbW/4KmdiIW3RbrlVNoth6ELnyRjI7TIkwmNo4SnAC
 OG62Q434Jv2A5NxXBeWDmnmBD8Y5JUOAJ2YiPC27i6E8lcko5GPsMwz79+GClnOU
 X+ncjtkRJNzCNuRp4FXrNKCQ/L2mXeKPgcN9XqiH1/VPqxxdA6G0kDdISEKDYOY3
 q97dwpigdw==
 =W4kQ
 -----END PGP SIGNATURE-----

Merge tag 'block-5.7-2020-04-17' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Fix for a driver tag leak in error handling (John)

 - Remove now defunct Kconfig selection from dasd (Stefan)

 - blk-wbt trace fiexs (Tommi)

* tag 'block-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
  blk-wbt: Drop needless newlines from tracepoint format strings
  blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals
  s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig
  blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget
2020-04-17 10:08:08 -07:00
Linus Torvalds
2acbb9e670 libata-5.7-2020-04-17
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl6ZxvQQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpqWfEADCccXhidLp0vBn0s2FpVb22lREd3nYQ4xg
 RRqvyyNMncErHR5wQsFt/swoe1w/V2vmc4vSW6zxhw0esGP+Lcb2x7KL2O/59X8W
 LO1DUuum74VVxKTb8T2KVJdx9ANa6G8qw5c6CMpJwIlsmETxpeR6XJraWcgLcOkY
 sD6XKut+/d46txYgM7YLvyOdQ1qXM1P8oCQrYgieEZ9D18mfsVWyXI9G+qWmeiqF
 ROFMHfPZdpNaEw4mw53Pow7UFz8KOTNvbw8sNpMBnspeE0KLC7gtJxgK1bAQ5QC7
 vtiXEJlkEmFO3PzXvS/shcIyYHA5fCTvCc6L/JmAVNAmT+bqti9hmm3ONLsxAmb+
 bo7/rKvmYjtFquFg3nhQrBkRc2Xl7GqZL2/BJTkOMp/kaJiXqCOzEd89/wvBSfCS
 qfDASf8zXrsgO55gyTxXxwYoBKju0FX0DAlDoryJtikqzLIgupTHT+/uQ+5mU9lw
 OzhwLP2tL9xS2t8i7TIDgAz8FI0HXmcg54iRrVMvnAuUelG1bs5uRa/QTWLE2rf6
 9jEQN+2O5K2mW8AJkzgCVC6WZIYcjVKq0YA2fQ0emiomrD420oYAt4gx8J+kqoI4
 TRoznSj/WIcWPp0EcKv3buZROPVbbk4g/akFqJWJqEr3FlWBonRI+z0Q+dgKeERB
 nG8VuNa9+g==
 =MzVj
 -----END PGP SIGNATURE-----

Merge tag 'libata-5.7-2020-04-17' of git://git.kernel.dk/linux-block

Pull libata fixlet from Jens Axboe:
 "Add yet another Comet Lake PCI ID for ahci"

* tag 'libata-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
  ahci: Add Intel Comet Lake PCH-U PCI ID
2020-04-17 10:06:16 -07:00
Linus Torvalds
c5304dd59b for-5.7-rc1-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAl6ZrWEACgkQxWXV+ddt
 WDsQohAAhcAaSc/QoJ5g+vI/x5YQbo6KzAVyKbUbJdFlUIzh5uVBjJmpy4IQehcG
 QQGoqj5mAO9DaWHH5wGoR9xBRKNDjc5Sh86IjaKrPNNyDoDWMuUKs5bqZojtY819
 4zZyZaKUGQ8HD0BwKEMCMM30BWyXjj7MkngJtzO5/qj43cwSyIORDk8a4DDLwImr
 FPdArpdUshRlt5aEwosTV4X/zRQ5kfQF8vOYd0TopfXAvKF3g6PZ7YmrHzfmVQGK
 hdmqfsKY3gMhcNwi7nCTfaHN6qRd/9Bec+Z3ZVtZPsEoIPMZOyqgw8yU9NRjMj4O
 GhmsLA9onbEYYrSAaGP/O7nEYr2M3MS0vJ0KnOobpOJaSMPZFUOfouac7u8l9ZZU
 KQ5aSJo2mx9E6/VSesoP19TafKHJYx79J8M71tStVrXFCtT6yLkWzvsxj4gNacJc
 2HFNEN/8zvDuWCy9s0JZnSQZ+nv01EuCjZ60IoMuS51lh9EcZORu6kKX33pp7UJS
 WOANssZvunc1AaW0HxT0GME4V0RJa8yoKRFIhV2bLZFGGo2dwvom+v2/1kJy+fW/
 LyfEA9973lyWuhqedB08r+dTIgEN5MEOwetsxQua2iC/P8VnpmU7rfmBk/LlTg7j
 dN+O39+Ms6edsk+K3pxSedRU79XgdJ3muA6fNPmILUJBczQriKU=
 =s26U
 -----END PGP SIGNATURE-----

Merge tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fix from David Sterba:
 "A regression fix for a warning caused by running balance and snapshot
  creation in parallel"

* tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix setting last_trans for reloc roots
2020-04-17 10:00:33 -07:00
Linus Torvalds
5a32fe48bc Power management update for 5.7-rc2
Allow the operating performance points (OPP) core to be used in
 the case when the same driver is used on different platforms,
 some of which have an OPP table and some of which have a clock
 node (Rajendra Nayak).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl6ZuBESHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRx6tQP/3eBHKn8tJqGyKFWf0A08y1QhzuH095+
 oOOAyekjV7g8j7sOyYGgmNbcxc02KkM6+TsWbSKCXMCKJ9dzAi2CfMQIQz3hiPnf
 3Moc7dmKV6ZrEO87qbuU2V6O2Dmv3SXugIoVEubcS+k4j1FHABE72YPKoJ5aqyM/
 oafSghRd+gwJcLrHAurUBQwYNMLQiCrX60hRglENxZQfaeMp/aZ/zGXwrFPhdmPh
 eNssdHPpCWbfGQYkqMjIJ5xw9KMMJtxvSKpmnQp1Z7vBZnoYJ+CypAULnPt1ATNz
 EngVt3WqY9VG38RtcOFWfZXlMQiCeQzO78PP9WR/asDySCL79OwNVPozvEi85keT
 SCCdFyrVf7c6HzGpRC3I8r1hzVmC707S9ScQ5255WiaUpCdFTIYPNzrcAWIvmf6m
 c6J/nNS++HAleaeb9Idu6QvBG15en9vj9R5nuI2UOOjk+qXzQmYFVw7IM7aF1nlN
 wULMVhpszkqtGLbS/LS/Xcc4ikNda4V5dlLBawBkRzSjJlb5Qm4IjliJpO8ajfZu
 1gtdpfkSRGJMGNtT364RsA6ObCPf6xbgSYoL5pDr5xnZggGyf/vjGd/hJ1ECHR0z
 oVLIJqIYLqWBlIiXi+08pQNIxh37Kh7c11TSP/6F8tOPR7FopS56svyLRr7R+RFI
 xXSEaXKC1Z3w
 =+9n1
 -----END PGP SIGNATURE-----

Merge tag 'pm-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management update from Rafael Wysocki:
 "Allow the operating performance points (OPP) core to be used in the
  case when the same driver is used on different platforms, some of
  which have an OPP table and some of which have a clock node (Rajendra
  Nayak)"

* tag 'pm-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  opp: Manage empty OPP tables with clk handle
2020-04-17 09:56:28 -07:00
Linus Torvalds
c8a6552ff1 sound fixes for 5.7-rc2
One significant regression fix is for HD-audio buffer preallocation.
 In 5.6 it was set to non-prompt for x86 and forced to 0, but this
 turned out to be problematic for some applications, hence it gets
 reverted.  Distros would need to restore CONFIG_SND_HDA_PREALLOC_SIZE
 value to the earlier values they've used in the past.
 
 Other than that, we've received quite a few small fixes for HD-audio
 and USB-audio.  Most of them are for dealing with the broken TRX40
 mobos and the runtime PM without HD-audio codecs.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl6ZgMEOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE9xIg//W0CkSxsl3yp71o+8Gv+xEWSuOGZ6Gbu5q82e
 PXDODxiAUTvzaueQm+ufofQRYxepZfilLweyxyETT2beQeC20Ty+p+S4bEw1uA4Q
 NiCkGjJZ6EGxVIb3F1S6n2BMrRckRBFD2xoz6NTd9S/iwAv9dBkUFUit9WywjgOF
 XLj0UiTfydgJJ8JIeql6S0glu7Hr+itMcvb3zhIKhvSv0gjR2EFxM6vvl7X9sn8l
 b/RYwJmR0ixKSXSTYWOAyJxLETEwRDOVbkyxOMFwU7y/JaE3j6D8xEd7vnT96AmJ
 7k9upgh5nRWMGEjIa4lp3ob7HhuMF9q99b2yUG6NsDvP3SffusM8MoDWJ04ULMle
 V2sJQQeMk20SuKlNBQfkui9lTbTG1iLRfIjPmJPUHrQNmo4v2P74iQy/7WuJwunK
 U1j0A6VJDkQmRp5WNk9tbkwcGLD7x0ZMfnA/fmulT50iU98Qc1ONfbmxDnOMekOC
 5AckG3upHS6dlQS61LIK9QENkc1GGQRk7b2eKd7wihYLaQEcvq+6z9ywZiSelhSA
 2hc3dAX7RaGR+f2VdWni6uuE+j/XhFblKHWkLlfvY9ESBJgX5s7qys7ogO8+mOfc
 8fGyrYFz/bc3Z8ZHqkOPxhfaIHJYyPNR0AXTLCW5di/OZRXBjW6N7rhCHOM7K2YH
 uulsJDM=
 =2Ir9
 -----END PGP SIGNATURE-----

Merge tag 'sound-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "One significant regression fix is for HD-audio buffer preallocation.
  In 5.6 it was set to non-prompt for x86 and forced to 0, but this
  turned out to be problematic for some applications, hence it gets
  reverted. Distros would need to restore CONFIG_SND_HDA_PREALLOC_SIZE
  value to the earlier values they've used in the past.

  Other than that, we've received quite a few small fixes for HD-audio
  and USB-audio. Most of them are for dealing with the broken TRX40
  mobos and the runtime PM without HD-audio codecs"

* tag 'sound-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: call runtime_allow() for all hda controllers
  ALSA: hda: Allow setting preallocation again for x86
  ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
  ALSA: hda: Skip controller resume if not needed
  ALSA: hda: Keep the controller initialization even if no codecs found
  ALSA: hda: Release resources at error in delayed probe
  ALSA: hda: Honor PM disablement in PM freeze and thaw_noirq ops
  ALSA: hda: Don't release card at firmware loading error
  ALSA: usb-audio: Check mapping at creating connector controls, too
  ALSA: usb-audio: Don't create jack controls for PCM terminals
  ALSA: usb-audio: Don't override ignore_ctl_error value from the map
  ALSA: usb-audio: Filter error from connector kctl ops, too
  ALSA: hda/realtek - Enable the headset mic on Asus FX505DT
  ALSA: ctxfi: Remove unnecessary cast in kfree
2020-04-17 09:48:50 -07:00
Chuck Lever
23cf1ee1f1 svcrdma: Fix leak of svc_rdma_recv_ctxt objects
Utilize the xpo_release_rqst transport method to ensure that each
rqstp's svc_rdma_recv_ctxt object is released even when the server
cannot return a Reply for that rqstp.

Without this fix, each RPC whose Reply cannot be sent leaks one
svc_rdma_recv_ctxt. This is a 2.5KB structure, a 4KB DMA-mapped
Receive buffer, and any pages that might be part of the Reply
message.

The leak is infrequent unless the network fabric is unreliable or
Kerberos is in use, as GSS sequence window overruns, which result
in connection loss, are more common on fast transports.

Fixes: 3a88092ee3 ("svcrdma: Preserve Receive buffer until svc_rdma_sendto")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2020-04-17 12:40:38 -04:00
Chuck Lever
e28b4fc652 svcrdma: Fix trace point use-after-free race
I hit this while testing nfsd-5.7 with kernel memory debugging
enabled on my server:

Mar 30 13:21:45 klimt kernel: BUG: unable to handle page fault for address: ffff8887e6c279a8
Mar 30 13:21:45 klimt kernel: #PF: supervisor read access in kernel mode
Mar 30 13:21:45 klimt kernel: #PF: error_code(0x0000) - not-present page
Mar 30 13:21:45 klimt kernel: PGD 3601067 P4D 3601067 PUD 87c519067 PMD 87c3e2067 PTE 800ffff8193d8060
Mar 30 13:21:45 klimt kernel: Oops: 0000 [#1] SMP DEBUG_PAGEALLOC PTI
Mar 30 13:21:45 klimt kernel: CPU: 2 PID: 1933 Comm: nfsd Not tainted 5.6.0-rc6-00040-g881e87a3c6f9 #1591
Mar 30 13:21:45 klimt kernel: Hardware name: Supermicro Super Server/X10SRL-F, BIOS 1.0c 09/09/2015
Mar 30 13:21:45 klimt kernel: RIP: 0010:svc_rdma_post_chunk_ctxt+0xab/0x284 [rpcrdma]
Mar 30 13:21:45 klimt kernel: Code: c1 83 34 02 00 00 29 d0 85 c0 7e 72 48 8b bb a0 02 00 00 48 8d 54 24 08 4c 89 e6 48 8b 07 48 8b 40 20 e8 5a 5c 2b e1 41 89 c6 <8b> 45 20 89 44 24 04 8b 05 02 e9 01 00 85 c0 7e 33 e9 5e 01 00 00
Mar 30 13:21:45 klimt kernel: RSP: 0018:ffffc90000dfbdd8 EFLAGS: 00010286
Mar 30 13:21:45 klimt kernel: RAX: 0000000000000000 RBX: ffff8887db8db400 RCX: 0000000000000030
Mar 30 13:21:45 klimt kernel: RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000246
Mar 30 13:21:45 klimt kernel: RBP: ffff8887e6c27988 R08: 0000000000000000 R09: 0000000000000004
Mar 30 13:21:45 klimt kernel: R10: ffffc90000dfbdd8 R11: 00c068ef00000000 R12: ffff8887eb4e4a80
Mar 30 13:21:45 klimt kernel: R13: ffff8887db8db634 R14: 0000000000000000 R15: ffff8887fc931000
Mar 30 13:21:45 klimt kernel: FS:  0000000000000000(0000) GS:ffff88885bd00000(0000) knlGS:0000000000000000
Mar 30 13:21:45 klimt kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 30 13:21:45 klimt kernel: CR2: ffff8887e6c279a8 CR3: 000000081b72e002 CR4: 00000000001606e0
Mar 30 13:21:45 klimt kernel: Call Trace:
Mar 30 13:21:45 klimt kernel: ? svc_rdma_vec_to_sg+0x7f/0x7f [rpcrdma]
Mar 30 13:21:45 klimt kernel: svc_rdma_send_write_chunk+0x59/0xce [rpcrdma]
Mar 30 13:21:45 klimt kernel: svc_rdma_sendto+0xf9/0x3ae [rpcrdma]
Mar 30 13:21:45 klimt kernel: ? nfsd_destroy+0x51/0x51 [nfsd]
Mar 30 13:21:45 klimt kernel: svc_send+0x105/0x1e3 [sunrpc]
Mar 30 13:21:45 klimt kernel: nfsd+0xf2/0x149 [nfsd]
Mar 30 13:21:45 klimt kernel: kthread+0xf6/0xfb
Mar 30 13:21:45 klimt kernel: ? kthread_queue_delayed_work+0x74/0x74
Mar 30 13:21:45 klimt kernel: ret_from_fork+0x3a/0x50
Mar 30 13:21:45 klimt kernel: Modules linked in: ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue ib_umad ib_ipoib mlx4_ib sb_edac x86_pkg_temp_thermal iTCO_wdt iTCO_vendor_support coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel glue_helper crypto_simd cryptd pcspkr rpcrdma i2c_i801 rdma_ucm lpc_ich mfd_core ib_iser rdma_cm iw_cm ib_cm mei_me raid0 libiscsi mei sg scsi_transport_iscsi ioatdma wmi ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter nfsd nfs_acl lockd auth_rpcgss grace sunrpc ip_tables xfs libcrc32c mlx4_en sd_mod sr_mod cdrom mlx4_core crc32c_intel igb nvme i2c_algo_bit ahci i2c_core libahci nvme_core dca libata t10_pi qedr dm_mirror dm_region_hash dm_log dm_mod dax qede qed crc8 ib_uverbs ib_core
Mar 30 13:21:45 klimt kernel: CR2: ffff8887e6c279a8
Mar 30 13:21:45 klimt kernel: ---[ end trace 87971d2ad3429424 ]---

It's absolutely not safe to use resources pointed to by the @send_wr
argument of ib_post_send() _after_ that function returns. Those
resources are typically freed by the Send completion handler, which
can run before ib_post_send() returns.

Thus the trace points currently around ib_post_send() in the
server's RPC/RDMA transport are a hazard, even when they are
disabled. Rearrange them so that they touch the Work Request only
_before_ ib_post_send() is invoked.

Fixes: bd2abef333 ("svcrdma: Trace key RDMA API events")
Fixes: 4201c74647 ("svcrdma: Introduce svc_rdma_send_ctxt")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2020-04-17 12:40:38 -04:00
Chuck Lever
6221f1d9b6 SUNRPC: Fix backchannel RPC soft lockups
Currently, after the forward channel connection goes away,
backchannel operations are causing soft lockups on the server
because call_transmit_status's SOFTCONN logic ignores ENOTCONN.
Such backchannel Calls are aggressively retried until the client
reconnects.

Backchannel Calls should use RPC_TASK_NOCONNECT rather than
RPC_TASK_SOFTCONN. If there is no forward connection, the server is
not capable of establishing a connection back to the client, thus
that backchannel request should fail before the server attempts to
send it. Commit 58255a4e3c ("NFSD: NFSv4 callback client should
use RPC_TASK_SOFTCONN") was merged several years before
RPC_TASK_NOCONNECT was available.

Because setup_callback_client() explicitly sets NOPING, the NFSv4.0
callback connection depends on the first callback RPC to initiate
a connection to the client. Thus NFSv4.0 needs to continue to use
RPC_TASK_SOFTCONN.

Suggested-by: Trond Myklebust <trondmy@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: <stable@vger.kernel.org> # v4.20+
2020-04-17 12:40:31 -04:00
Chao Yu
8b83ac81f4 f2fs: support read iostat
Adds to support accounting read IOs from userspace/kernel.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-04-17 09:17:00 -07:00
Sahitya Tummala
df42339975 f2fs: Fix the accounting of dcc->undiscard_blks
When a discard_cmd needs to be split due to dpolicy->max_requests, then
for the remaining length it will be either merged into another cmd or a
new discard_cmd will be created. In this case, there is double
accounting of dcc->undiscard_blks for the remaining len, due to which
it shows incorrect value in stats.

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-04-17 09:17:00 -07:00
Chao Yu
ce4c638cdd f2fs: fix to handle error path of f2fs_ra_meta_pages()
In f2fs_ra_meta_pages(), if f2fs_submit_page_bio() failed, we need to
unlock page, fix it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-04-17 09:17:00 -07:00
Sahitya Tummala
3fa6a8c5b5 f2fs: report the discard cmd errors properly
In case a discard_cmd is split into several bios, the dc->error
must not be overwritten once an error is reported by a bio. Also,
move it under dc->lock.

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-04-17 09:17:00 -07:00
Sahitya Tummala
141af6ba52 f2fs: fix long latency due to discard during umount
F2FS already has a default timeout of 5 secs for discards that
can be issued during umount, but it can take more than the 5 sec
timeout if the underlying UFS device queue is already full and there
are no more available free tags to be used. Fix this by submitting a
small batch of discard requests so that it won't cause the device
queue to be full at any time and thus doesn't incur its wait time
in the umount context.

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-04-17 09:17:00 -07:00
Daeho Jeong
2bc4bea338 f2fs: add tracepoint for f2fs iostat
Added a tracepoint to see iostat of f2fs. Default period of that
is 3 second. This tracepoint can be used to be monitoring
I/O statistics periodically.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-04-17 09:16:57 -07:00
Masahiro Yamada
0903060fe5 kbuild: check libyaml installation for 'make dt_binding_check'
If you run 'make dtbs_check' without installing the libyaml package,
the error message "dtc needs libyaml ..." is shown.

This should be checked also for 'make dt_binding_check' because dtc
needs to validate *.example.dts extracted from *.yaml files.

It is missing since commit 4f0e3a57d6 ("kbuild: Add support for DT
binding schema checks"), but this fix-up is applicable only after commit
e10c4321dc ("kbuild: allow to run dt_binding_check and dtbs_check
in a single command").

I gave the Fixes tag to the latter in case somebody is interested in
back-porting this.

Fixes: e10c4321dc ("kbuild: allow to run dt_binding_check and dtbs_check in a single command")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-04-17 10:45:23 -05:00
Arnd Bergmann
4517f4817d soc: imx8: select SOC_BUS
Compile-testing the driver can result in a link failure
when CONFIG_SOC_BUS is disabled:

x86_64-linux-ld: drivers/soc/imx/soc-imx8m.o: in function `imx8_soc_init':
soc-imx8m.c:(.init.text+0x28d): undefined reference to `soc_device_register'

Select it from Kconfig, as we do from the other SoC drivers.

Link: https://lore.kernel.org/r/20200409075208.2824062-1-arnd@arndb.de
Fixes: fc40200ebf ("soc: imx: increase build coverage for imx8m soc driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-04-17 17:20:44 +02:00
Arnd Bergmann
b1018eb75c soc: tegra: fix tegra_pmc_get_suspend_mode definition
When CONFIG_PM_SLEEP is disabled, the function is not defined,
causing a link failure:

arm-linux-gnueabi-ld: drivers/cpuidle/cpuidle-tegra.o: in function `tegra_cpuidle_probe':
cpuidle-tegra.c:(.text+0x24): undefined reference to `tegra_pmc_get_suspend_mode'

Change the #ifdef check according to the definition.

Fixes: 382ac8e22b ("cpuidle: tegra: Disable CC6 state if LP2 unavailable")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-04-17 17:20:44 +02:00
Arnd Bergmann
5c4a5999b2 soc: fsl: dpio: avoid stack usage warning
A 1024 byte variable on the stack will warn on any 32-bit architecture
during compile-testing, and is generally a bad idea anyway:

fsl/dpio/dpio-service.c: In function 'dpaa2_io_service_enqueue_multiple_desc_fq':
fsl/dpio/dpio-service.c:495:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

There are currently no callers of this function, so I cannot tell whether
dynamic memory allocation is allowed once callers are added. Change
it to kcalloc for now, if anyone gets a warning about calling this in
atomic context after they start using it, they can fix it later.

Link: https://lore.kernel.org/r/20200408185834.434784-1-arnd@arndb.de
Fixes: 9d98809711 ("soc: fsl: dpio: Adding QMAN multiple enqueue interface")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-04-17 17:20:44 +02:00
Linus Walleij
ac2caae61e drm/tegra: Clean up GPIO includes
The Tegra DRM drivers includes the legacy GPIO headers
<linux/gpio.h> and <linux/of_gpio.h> but what it really
uses is <linux/gpio/consumer.h> since only gpio_desc
structs are ever referenced.

Include the right header on the top level tegra/drm.h
file and drop all the surplus includes.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415122427.111769-1-linus.walleij@linaro.org
2020-04-17 17:16:22 +02:00
Greg Kroah-Hartman
2b07021a94 debugfs: remove return value of debugfs_create_u32()
No one checks the return value of debugfs_create_u32(), as it's not
needed, so make the return value void, so that no one tries to do so in
the future.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200416145448.GA1380878@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-17 17:08:50 +02:00
Venkatesh Srinivas
2ca1a06a54 kvm: Handle reads of SandyBridge RAPL PMU MSRs rather than injecting #GP
Linux 3.14 unconditionally reads the RAPL PMU MSRs on boot, without handling
General Protection Faults on reading those MSRs. Rather than injecting a #GP,
which prevents boot, handle the MSRs by returning 0 for their data. Zero was
checked to be safe by code review of the RAPL PMU driver and in discussion
with the original driver author (eranian@google.com).

Signed-off-by: Venkatesh Srinivas <venkateshs@google.com>
Signed-off-by: Jon Cargille <jcargill@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20200416184254.248374-1-jcargill@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-04-17 11:06:33 -04:00
Rafael J. Wysocki
33aa46f252 cpufreq: intel_pstate: Use passive mode by default without HWP
After recent changes allowing scale-invariant utilization to be
used on x86, the schedutil governor on top of intel_pstate in the
passive mode should be on par with (or better than) the active mode
"powersave" algorithm of intel_pstate on systems in which
hardware-managed P-states (HWP) are not used, so it should not be
necessary to use the internal scaling algorithm in those cases.

Accordingly, modify intel_pstate to start in the passive mode by
default if the processor at hand does not support HWP of if the driver
is requested to avoid using HWP through the kernel command line.

Among other things, that will allow utilization clamps and the
support for RT/DL tasks in the schedutil governor to be utilized on
systems in which intel_pstate is used.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-17 17:04:38 +02:00
Steve Rutherford
7289fdb5dc KVM: Remove CREATE_IRQCHIP/SET_PIT2 race
Fixes a NULL pointer dereference, caused by the PIT firing an interrupt
before the interrupt table has been initialized.

SET_PIT2 can race with the creation of the IRQchip. In particular,
if SET_PIT2 is called with a low PIT timer period (after the creation of
the IOAPIC, but before the instantiation of the irq routes), the PIT can
fire an interrupt at an uninitialized table.

Signed-off-by: Steve Rutherford <srutherford@google.com>
Signed-off-by: Jon Cargille <jcargill@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20200416191152.259434-1-jcargill@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-04-17 11:04:01 -04:00
Linus Walleij
9cd347294b intel-pinctrl for v5.7-2
* Enable pin configuration setting for Baytrail
 * Fix interrupt handling due to hardware sighting for Cherryview
 * Fix PAD lock offset for Sunrisepoint-H
 
 The following is an automated git shortlog grouped by driver:
 
 baytrail:
  -  Enable pin configuration setting for GPIO chip
 
 cherryview:
  -  Add missing spinlock usage in chv_gpio_irq_handler
 
 sunrisepoint:
  -  Fix PAD lock register offset for SPT-H
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEqaflIX74DDDzMJJtb7wzTHR8rCgFAl6ZqxsACgkQb7wzTHR8
 rCgq6xAAmP9Oagl3lRXyYtcmpKqfiYvbW2TsWg5vQMTkqisJHrn9HKngg9ZopbSX
 4XevdENuPzd2QHgAnbf5GQBEhtl591umGAMDgIUbVG8tzaNEpbwVdznn8cmEhXIK
 fijwr2xVFdv3/aK30i7jk3E5SbIT+g5VdnzklwA+EScdBzmJzOHQR30SJC1BjyQg
 g4ao24J177QdWvvXIu3Sz1e+rB/ZP/DDfIbE9Q98o0ALp4gl5f97cRzgLm7bgzGH
 7GshlKuqGDTWEinUhMBPOMNvL0gQT3mhcn8I9bsruww5oDSTkru8RX0LIw0GohOI
 FCpZRe/5hOq8VksJLyt2RW4a8yTmdfAIyYmPFvO8KBB6nwRMSVrhwcw/bCWlC46J
 r+0ACSWMKjBlnj0ycM04zDXq+uYzc49Z5oGcvrTDckaxCcsAvejbPfH7ezdbRAJT
 38xHLQvEEZrhEUleDRJyq84pfI03pCr8KCCHcZyg/0cmRnU0aCuQV7givmVZEZQu
 Yq6jg8qhGiR1UucSU9jHKYZENGNfL2amF5Z1BPsguxHsg0RSq7kEWGRSS7S2sD2p
 ZHh3A/0AFzj+rg6Mv6CiHg+4+9t3F2HkPIS8jVcDbJAxHbFxUBhDUi5PFTGVz2xj
 oeMjtXD/guwi++JVzFRniIgrvXVkkuLAOz1i8Ep9hMcJFgU7kZo=
 =SMBA
 -----END PGP SIGNATURE-----

Merge tag 'intel-pinctrl-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes

intel-pinctrl for v5.7-2

* Enable pin configuration setting for Baytrail
* Fix interrupt handling due to hardware sighting for Cherryview
* Fix PAD lock offset for Sunrisepoint-H

The following is an automated git shortlog grouped by driver:

baytrail:
 -  Enable pin configuration setting for GPIO chip

cherryview:
 -  Add missing spinlock usage in chv_gpio_irq_handler

sunrisepoint:
 -  Fix PAD lock register offset for SPT-H
2020-04-17 16:36:04 +02:00
Arnd Bergmann
0666e3c481 soc: fsl: dpio: fix incorrect pointer conversions
Building dpio for 32 bit shows a new compiler warning from converting
a pointer to a u64:

drivers/soc/fsl/dpio/qbman-portal.c: In function 'qbman_swp_enqueue_multiple_desc_direct':
drivers/soc/fsl/dpio/qbman-portal.c:870:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  870 |  addr_cena = (uint64_t)s->addr_cena;

The variable is not used anywhere, so removing the assignment seems
to be the correct workaround. After spotting what seemed to be
some confusion about address spaces, I ran the file through sparse,
which showed more warnings:

drivers/soc/fsl/dpio/qbman-portal.c:756:42: warning: incorrect type in argument 1 (different address spaces)
drivers/soc/fsl/dpio/qbman-portal.c:756:42:    expected void const volatile [noderef] <asn:2> *addr
drivers/soc/fsl/dpio/qbman-portal.c:756:42:    got unsigned int [usertype] *[assigned] p
drivers/soc/fsl/dpio/qbman-portal.c:902:42: warning: incorrect type in argument 1 (different address spaces)
drivers/soc/fsl/dpio/qbman-portal.c:902:42:    expected void const volatile [noderef] <asn:2> *addr
drivers/soc/fsl/dpio/qbman-portal.c:902:42:    got unsigned int [usertype] *[assigned] p

Here, the problem is passing a token from memremap() into __raw_readl(),
which is only defined to work on MMIO addresses but not RAM. Turning
this into a simple pointer dereference avoids this warning as well.

Link: https://lore.kernel.org/r/20200408185904.460563-1-arnd@arndb.de
Fixes: 3b2abda7d2 ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-04-17 16:34:01 +02:00
Ahmad Fatoum
f1baca8896 ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y
512a928aff ("ARM: imx: build v7_cpu_resume() unconditionally")
introduced an unintended linker error for i.MX6 configurations that have
ARM_CPU_SUSPEND=n which can happen if neither CONFIG_PM, CONFIG_CPU_IDLE,
nor ARM_PSCI_FW are selected.

Fix this by having v7_cpu_resume() compiled only when cpu_resume() it
calls is available as well.

The C declaration for the function remains unguarded to avoid future code
inadvertently using a stub and introducing a regression to the bug the
original commit fixed.

Cc: <stable@vger.kernel.org>
Fixes: 512a928aff ("ARM: imx: build v7_cpu_resume() unconditionally")
Reported-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Tested-by: Roland Hieber <rhi@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-04-17 16:29:59 +02:00
Reinette Chatre
b0151da52a x86/resctrl: Fix invalid attempt at removing the default resource group
The default resource group ("rdtgroup_default") is associated with the
root of the resctrl filesystem and should never be removed. New resource
groups can be created as subdirectories of the resctrl filesystem and
they can be removed from user space.

There exists a safeguard in the directory removal code
(rdtgroup_rmdir()) that ensures that only subdirectories can be removed
by testing that the directory to be removed has to be a child of the
root directory.

A possible deadlock was recently fixed with

  334b0f4e9b ("x86/resctrl: Fix a deadlock due to inaccurate reference").

This fix involved associating the private data of the "mon_groups"
and "mon_data" directories to the resource group to which they belong
instead of NULL as before. A consequence of this change was that
the original safeguard code preventing removal of "mon_groups" and
"mon_data" found in the root directory failed resulting in attempts to
remove the default resource group that ends in a BUG:

  kernel BUG at mm/slub.c:3969!
  invalid opcode: 0000 [#1] SMP PTI

  Call Trace:
  rdtgroup_rmdir+0x16b/0x2c0
  kernfs_iop_rmdir+0x5c/0x90
  vfs_rmdir+0x7a/0x160
  do_rmdir+0x17d/0x1e0
  do_syscall_64+0x55/0x1d0
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fix this by improving the directory removal safeguard to ensure that
subdirectories of the resctrl root directory can only be removed if they
are a child of the resctrl filesystem's root _and_ not associated with
the default resource group.

Fixes: 334b0f4e9b ("x86/resctrl: Fix a deadlock due to inaccurate reference")
Reported-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/884cbe1773496b5dbec1b6bd11bb50cffa83603d.1584461853.git.reinette.chatre@intel.com
2020-04-17 16:26:23 +02:00
Tommi Rantala
3f22037d38 blk-wbt: Drop needless newlines from tracepoint format strings
Drop needless newlines from tracepoint format strings, they only add
empty lines to perf tracing output.

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-17 08:21:46 -06:00
Tommi Rantala
3a89c25d98 blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals
Use tracepoint_string() for string literals that are used in the
wbt_step tracepoint, so that userspace tools can display the string
content.

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-17 08:21:44 -06:00
Stefan Haberland
3dceecfad6 s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig
CONFIG_IOSCHED_DEADLINE was removed with
commit f382fb0bce ("block: remove legacy IO schedulers")

and setting of the scheduler was removed with
commit a5fd8ddce2 ("s390/dasd: remove setting of scheduler from driver").

So get rid of the select.

Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-17 08:05:27 -06:00
Chuhong Yuan
6937749955 video: fbdev: vesafb: add missed release_region
The driver forgets to free the I/O region in remove and probe
failure.
Add the missed calls to fix it.

Since the success of request_region() is optional, add the "region" field
in vesafb_par to represent whether request_region() succeeds.
Then only call release_region() when "region" is not null.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200329145839.20076-1-hslester96@gmail.com
2020-04-17 15:50:14 +02:00
Chuhong Yuan
fbe3d80df8 video: fbdev: arcfb: add missed free_irq and fix the order of request_irq
The driver forgets to free irq in remove which is requested in
probe.
Add the missed call to fix it.
Also, the position of request_irq() in probe should be put before
register_framebuffer().

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324132353.21785-1-hslester96@gmail.com
2020-04-17 15:50:13 +02:00
Chuhong Yuan
8213fb4187 fbdev: s1d13xxxfb: add missed unregister_framebuffer in remove
The driver calls register_framebuffer() in probe but does not call
unregister_framebuffer() in remove.
Rename current remove to __s1d13xxxfb_remove() for error handler.
Then add a new remove to call unregister_framebuffer().

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
[b.zolnierkie: ported over recent s1d13xxxfb changes]
[b.zolnierkie: removed extra newline]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324132311.21729-1-hslester96@gmail.com
2020-04-17 15:50:12 +02:00
Linus Walleij
5e4096ef03 ARM/fbdev: sa11x0: Switch to use GPIO descriptors
This converts the SA11x0 frame buffer driver to use
GPIO descriptors. Get the GPIO optional and register
a look-up table specifically for the Shannon machine.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415165055.193113-1-linus.walleij@linaro.org
2020-04-17 15:50:11 +02:00
Jason Yan
7066fcd553 video: fbdev: aty128fb: remove unused 'sdr_64'
Fix the following gcc warning:

drivers/video/fbdev/aty/aty128fb.c:337:36: warning: ‘sdr_64’ defined but
not used [-Wunused-const-variable=]
 static const struct aty128_meminfo sdr_64 = {
                                    ^~~~~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200417092318.13978-1-yanaijie@huawei.com
2020-04-17 15:50:10 +02:00
YueHaibing
fff1ac9e28 omapfb/dss: remove unused variable 'venc_config_pal_bdghi'
drivers/video/fbdev/omap2/omapfb/dss/venc.c:212:33:
 warning: ‘venc_config_pal_bdghi’ defined but not used [-Wunused-const-variable=]
 static const struct venc_config venc_config_pal_bdghi = {
                                 ^~~~~~~~~~~~~~~~~~~~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Cc: Allison Randal <allison@lohutok.net>
[b.zolnierkie: fixed typo in the patch summary]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415132350.33088-1-yuehaibing@huawei.com
2020-04-17 15:50:09 +02:00
Sam Ravnborg
1c49f35e9e video: vt8500lcdfb: fix fallthrough warning
Fix following warning:
vt8500lcdfb.c: In function 'vt8500lcd_blank':
vt8500lcdfb.c:229:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
      if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||
         ^
vt8500lcdfb.c:233:2: note: here
     case FB_BLANK_UNBLANK:
     ^~~~

Adding a simple "fallthrough;" fixed the warning.
The fix was build tested.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: e41f1a9894 ("fbdev: Implement simple blanking in pseudocolor modes for vt8500lcdfb")
Cc: Alexey Charkov <alchark@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: <stable@vger.kernel.org> # v2.6.38+
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200412202143.GA26948@ravnborg.org
2020-04-17 15:50:08 +02:00
Uwe Kleine-König
5c694f8094 video: fbdev: imxfb: ensure balanced regulator usage
The fbdev framework doesn't care to call the .set_power callback only on
changes. So the driver has to care for itself that the regulator doesn't
get disabled more often than enabled.

This fixes the regulator warning

	unbalanced disables for lcd supply

which can be triggered by doing

	echo 4 > /sys/class/lcd/imxfb-lcd/lcd_power

twice.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323211626.24812-1-u.kleine-koenig@pengutronix.de
2020-04-17 15:50:07 +02:00