Commit Graph

692872 Commits

Author SHA1 Message Date
Jack Morgenstein
f9fb9d0b85 net/mlx4_core: Fix namespace misalignment in QinQ VST support commit
The cited commit introduced the following new enum value in file
include/linux/mlx4/device.h:

    MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP

However the value of MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP needs to stay
consistent with the value used in another namespace in
function dump_dev_cap_flags2(), which is manually kept in sync.
The change here restores that consistency.

Fixes: 7c3d21c815 ("net/mlx4_core: Preparation for VF vlan protocol 802.1ad")
Reported-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:44:09 -07:00
Jack Morgenstein
5886259c12 net/mlx4_core: Fix sl_to_vl_change bit offset in flags2 dump
The index value in function dump_dev_cap_flags2() for outputting
"sl to vl mapping table change event support" needs to be
consistent with the value of the enumerated constant
MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT defined in file
include/linux/mlx4_device.h

The change here restores that consistency.

Fixes: fd10ed8e6f ("IB/mlx4: Fix possible vl/sl field mismatch in LRH header in QP1 packets")
Reported-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:44:09 -07:00
Inbar Karmy
c994f778bb net/mlx4_en: Fix wrong indication of Wake-on-LAN (WoL) support
Currently when WoL is supported but disabled, ethtool reports:
"Supports Wake-on: d".
Fix the indication of Wol support, so that the indication
remains "g" all the time if the NIC supports WoL.

Tested:
As accepted, when NIC supports WoL- ethtool reports:
	Supports Wake-on: g
	Wake-on: d
when NIC doesn't support WoL- ethtool reports:
        Supports Wake-on: d
        Wake-on: d

Fixes: 14c07b1358 ("mlx4: Wake on LAN support")
Signed-off-by: Inbar Karmy <inbark@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:44:09 -07:00
David S. Miller
9075bd206c Merge branch 'lan78xx-Fixes'
Nisar Sayed says:

====================
lan78xx: Fixes to lan78xx driver

This series of patches are for lan78xx driver.

These patches fixes potential issues associated with lan78xx driver
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:39:58 -07:00
Nisar Sayed
0573f94b1a lan78xx: Fix to handle hard_header_len update
Fix to handle hard_header_len update

When ifconfig up/down sequence is initiated hard_header_len
get updated incrementally for each ifconfig up /down sequence,
this leads invalid hard_header_len, moving to lan78xx_bind
to have one time update of hard_header_len addresses the issue.

Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:39:58 -07:00
Nisar Sayed
fb52c3b597 lan78xx: USB fast connect/disconnect crash fix
USB fast connect/disconnect crash fix

When USB plugged/unplugged at fast rate,
lan78xx_mdio_init() in lan78xx_bind() failing case is not handled.
Whenever  lan78xx_mdio_init() failed, dev->mdiobus will be freed, however
since lan78xx_bind() not consider as error and try to proceed for
further initialization in lan78xx_probe() which leads system hung/crash.
Also when register_netdev() failed, netdev is freed without calling lan78xx_unbind().
Hence halting the failed cases right manner fixes the system crash/hung issue.

Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:39:58 -07:00
Marc Zyngier
8466489ef5 xhci: Reset Renesas uPD72020x USB controller for 32-bit DMA issue
The Renesas uPD72020x XHCI controller seems to suffer from a really
annoying bug, where it may retain some of its DMA programming across a XHCI
reset, and despite the driver correctly programming new DMA addresses.
This is visible if the device has been using 64-bit DMA addresses, and is
then switched to using 32-bit DMA addresses.  The top 32 bits of the
address (now zero) are ignored are replaced by the 32 bits from the
*previous* programming.  Sticking with 64-bit DMA always works, but doesn't
seem very appropriate.

A PCI reset of the device restores the normal functionality, which is done
at probe time.  Unfortunately, this has to be done before any quirk has
been discovered, hence the intrusive nature of the fix.

Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
CC: stable@vger.kernel.org	# v4.11+
2017-08-02 12:05:07 -05:00
Linus Torvalds
4d3f5d04d6 platform-drivers-x86 for v4.13-3
Fix two bugs under error or abnormal usage conditions. Correct a config
 dependency.
 
 dell-wmi:
  - Fix driver interface version query
 
 wmi:
  - Fix error handling in acpi_wmi_init()
 
 peaq-wmi:
  - select INPUT_POLLDEV
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJZgfUFAAoJEKbMaAwKp364u/IIAKvumEHC/ULEY/18hUvw0/nm
 hJn479pcvVKW7huDG0PF6v6KstYgWJmY28ZZV0jnBeAlKwZA+mr5y4skbTNZRkaC
 GK2w3PeWywCiDjME9IKbrBFjnNIiFLplH4Jjotjf+1g0fTp7SE0s5CrttU8oXSne
 DKhlyo1JsN+NnamxtvJBWMXZAIYbw5qjfy9vnaTPaKFokVEYAeXfI4Jn2Ue9vw0q
 D4xgxrd/UL6/WL4erezb80jqVzsdCHhN5AKQ5PeDbTRmLDJK8VxjvYH7LPtjQS9T
 L4VU1rqUCRitNHu+Z3daqOySk3zPhZZxckJZPimBojPhKEK98qUFHZLpWCVpeXU=
 =ZTnI
 -----END PGP SIGNATURE-----

Merge tag 'platform-drivers-x86-v4.13-3' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixes from Darren Hart:
 "Fix two bugs under error or abnormal usage conditions. Correct a
  config dependency:

  dell-wmi:
   - Fix driver interface version query

  wmi:
   - Fix error handling in acpi_wmi_init()

  peaq-wmi:
   - select INPUT_POLLDEV"

* tag 'platform-drivers-x86-v4.13-3' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: dell-wmi: Fix driver interface version query
  platform/x86: wmi: Fix error handling in acpi_wmi_init()
  platform/x86: peaq-wmi: select INPUT_POLLDEV
2017-08-02 09:43:28 -07:00
Stephen Boyd
5c0858f12b Allwinner clock fixes for 4.13
One critical clock fix for sun5i (A10s/A13/R8) which enables propogation
 of clock rate changes from the "cpu" clock to it's parent PLL clock.
 This fixes cpufreq related crashes that have been observed on KernelCI
 with the C.H.I.P. and multi_v7_defconfig.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCgAsFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAlmBWB8OHHdlbnNAY3Np
 ZS5vcmcACgkQOJpUIZwPJDBGvRAAkwO1p1Aw62i5QmrGox3iyWabH/Rbon0M+tLQ
 jP+kVukWrLR8REclkpwXqSK07Blg5m3o1MVMJXBKKOD6NAKCPOJoN75K/aX44fzZ
 msrTuuzGkixovkG7p8ln253v/TOoBMwwK+QDtTOk7zBNEZuRKevKAUOglQTJYTmy
 um7cVsisv5Yr89vtG767o0UyP82TUbnga6yLYY+72PbEKP1MnJtR0gzQp6Y9zxmW
 Oyt7MaHH7km6SDGrQUWgQ8SvZ36s3uLxPfrtPx0zbTE1sM31sgdHf4kZmciP7Yap
 eiLoHxV+twVxrgYh/Fl7BxOMfSqdIpZrzL3z2N3Hc53oARjOSl9c3N12UVzC0D0K
 lRldFpmW26U21xMp22033j6uW9daU2PmyybNyJu892DRfY8RcX2N7otwIgAtxEtY
 SKvVaG/uin2WVXs5FsxbpBUOm5xEJ04547TXuEegGjKyEv8+d1lCO6yU8i6xdUE0
 qBzNm5rNuuSTD5zKu41YpEWhMWxEFEJE+Cx/tsCOhaySDuKKOrV7Bbd15ec3PjRD
 llv2TvJNiBAkm4pakOsLZcDKk6RWqBEoN+6GXuC/66Dm+k+rR0nsRthDk418pDF2
 T8YgG1p5wETdh/DfnUnwg63xN/dVs4On8IJkGunznTTGMxHiYduQsmqAxkgaRq6h
 k4insAE=
 =uoCy
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Pull one Allwinner clock fix from Chen-Yu Tsai:

One critical clock fix for sun5i (A10s/A13/R8) which enables propagation
of clock rate changes from the "cpu" clock to it's parent PLL clock.
This fixes cpufreq related crashes that have been observed on KernelCI
with the C.H.I.P. and multi_v7_defconfig.

* tag 'sunxi-clk-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
2017-08-02 09:11:44 -07:00
Stephen Boyd
b48d7c5b89 Meson Clock fixes:
- mpll: fix mpll0 fractional part ignored
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZgHG0AAoJEHfc29rIyEnRKCwQAIoujlfO+NULaxl7JgGagZDy
 nJ1FU1kShDtm/pgWbW52cC92zgCJl5PGihxnwPVdJWd59TNKjPoREr1m5S8mWXPv
 IOVVoDg5VRfLVhwcuETi0aiXUmFjRQusgjM9NXyZpTcx2MtPY2CB92OMoaiITJgm
 a85tsfpptCQqAfixYsp8IqiHMnbLRj2Ntbf5+bHTcHrUnLmUUIJh6Fa7+16f8KJo
 JaYQ95X1c1ems4ECrYFINCgfNpi659deIum/UPZKysX0f8c78k0ANV9sMAyBazs8
 dhEdOWaGAohzyGJZg+btXLLnaRNGqVExP8qZ2X3+11Ob9r3VS95+sN7X19x+4q7C
 jKxgreD4jR3vv5ayXv/H15GK/y6xdDyO7vTkiMA9km8o5FK1Q/NYAlEbJx0Sr/v6
 Z3Dvp1IDdTNCzVa4ASmAyqOTOsx8SSqp6CdlpoQrutSrbnQsVZ8hleYrxjrGbsKC
 StB1g9JQEqOurOzMd50CdreKghCtQeI3TegxEKmhm++Q9sBD7KVhOpPw9ccty181
 GaEdfcdscKouT90c4tog3EwFihjoi2oidlU9PioJTIfeBfAE7q8P4ozMjzP7DCVd
 rSg9thk20oZYnep9UHF0NzM8JXv1dKcPTw44dkGRtj4JL9F0Grv8xFwgvXHG9SMU
 sRcgc13O8rNF6jjUQeJn
 =sv+n
 -----END PGP SIGNATURE-----

Merge tag 'meson-clk-fixes-for-4.13-rc4-v2' of git://github.com/baylibre/clk-meson into clk-fixes

Pull one Meson clock fix from Neil Armstrong

* tag 'meson-clk-fixes-for-4.13-rc4-v2' of git://github.com/baylibre/clk-meson:
  clk: meson: mpll: fix mpll0 fractional part ignored
2017-08-02 09:09:42 -07:00
Linus Torvalds
33611ba0fe SCSI fixes on 20170802
This seven is mostly minor build, Kconfig and error leg fixes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJZgeACAAoJEAVr7HOZEZN4vxwP/0GZc1EWDubS8DZZOr4X25WA
 jofQFCrWYf9jBcCA64pv7kF5wCbQk0MFXMvs2u5YHGMV8U4VyquNT2zEYm+R5ZD8
 C3sIdgZyxb7x+KkUJ5NxvDBIzAQuQcPEUPZspgi809veoATQ28qoMO1NkOJzbJGE
 nUs/6TZcpA5xGdqXtI3G6IsbvuAFO1hmI2aIUAj5UVKV+B9ILGsxWHPzYPErgtra
 afTJ8jO4vYW/wcyY7/DG/V8UAvU/0pe9NZqgt0Gn+XiSq5C9HnqS9+BWjU9nx98g
 EiPuvP6UBq7zGmjFQdUTwYuysbPDwyVfB1l7RJFVeBTPj6sINFrqTQPU8qwy96S8
 gxfObnfbEkx4zJmv4iP8HtAgRQMVsVN64ICD6oeS4JQWmXoz90S0vCLwrTQv36ll
 UHmBaSKMqPHTt+emEmup3rcOBU+4PIVq40jQjUyBCJXd/kg5GUz7Og++/NHX8JDZ
 qhVJ/VhkBacnDD9fZLQ2cMfcB/E5pUmEgx3MycZty8pXx0AkttWyB0lIddln2yiL
 qpZwbJ4nbhS7TO1/ScZlHEqp/rVY3aaIvLovWrhrmy4N1KBk41EmSxCokxkv+Kmd
 Twy35eHLDT9Hn0emT+y12Ul5y0cTxy1JMOcMf6LLXAHQsKgg2khm3JfHcXC7H4mO
 H/FpxwQT7z47yU3FF2mZ
 =/+Ot
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "These seven patches are mostly minor build, Kconfig and error leg
  fixes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qedi: Fix return code in qedi_ep_connect()
  scsi: lpfc: fix linking against modular NVMe support
  scsi: scsi_transport_fc: return -EBUSY for deleted vport
  scsi: libcxgbi: add check for valid cxgbi_task_data
  scsi: aic7xxx: fix firmware build with O=path
  scsi: megaraid_sas: fix memleak in megasas_alloc_cmdlist_fusion
  scsi: qedi: Add ISCSI_BOOT_SYSFS to Kconfig
2017-08-02 08:43:19 -07:00
Takashi Iwai
5ef26e966d ASoC: Fixes for v4.13
Quite a few fixes here that have been sent since the merge window, the
 biggest one is the fix from Tony for some confusion with the device
 property API which was causing issues with the of-graph card.  This is
 fixed with some changes in the graph API itself as it seemed very likely
 to be error prone.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlmB51ATHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0G39B/90DuMEckKIUVTPyIpyHetKl46eFRDJ
 9t3EnovAZJX6zZ7bdlkcCg33wGmcIkn9PFfLpPcnbxYeKP0xGah/GGKec1K/aeTn
 FiD2LjmO5Cc0adk5tEwqiVrL0cOVrUdXuMpvhoMQqD1EBzsgDQtUpG6EL8SGbrtd
 dfSLFDrYHIBO2b3iZOZPJvqMPnh9jJ4zEyBwVpQGOCoQdD/AP5S84McxwGhlJfl4
 UqAY8keZYlW/Gl1DSnc8BDDCuLrexdCEUAR/0Vz3QFQk+sSnKVlkE+XXo0L4AVZl
 XoDGjB5DL8FjXPG7yKO0rAytFFFzSJCWwBRnESAIGKz9o5HIUfOZtE8Q
 =10Px
 -----END PGP SIGNATURE-----

Merge tag 'asoc-fix-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.13

Quite a few fixes here that have been sent since the merge window, the
biggest one is the fix from Tony for some confusion with the device
property API which was causing issues with the of-graph card.  This is
fixed with some changes in the graph API itself as it seemed very likely
to be error prone.
2017-08-02 17:11:45 +02:00
Ming Lei
1ad43c0078 blk-mq: don't leak preempt counter/q_usage_counter when allocating rq failed
When blk_mq_get_request() failed, preempt counter isn't
released, and blk_mq_make_request() doesn't release the counter
too.

This patch fixes the issue, and makes sure that preempt counter
is only held if rq is allocated successfully. The same policy is
applied on .q_usage_counter too.

Signed-off-by: Ming Lei <minlei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-08-02 08:23:57 -06:00
Gregory CLEMENT
d7a65c4905 ARM64: dts: marvell: armada-37xx: Fix the number of GPIO on south bridge
The number of pins in South Bridge is 30 and not 29. There is a fix for
the driver for the pinctrl, but a fix is also need at device tree level
for the GPIO.

Fixes: afda007fed ("ARM64: dts: marvell: Add pinctrl nodes for Armada
3700")
Cc: <stable@vger.kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-08-02 16:00:00 +02:00
Trond Myklebust
d9cb73300a NFSv4: Fix double frees in nfs4_test_session_trunk()
rpc_clnt_add_xprt() expects the callback function to be synchronous, and
expects to release the transport and switch references itself.

Fixes: 04fa2c6bb5 ("NFS pnfs data server multipath session trunking")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2017-08-02 09:45:55 -04:00
Sergei A. Trusov
3f3c371421 ALSA: hda - Fix speaker output from VAIO VPCL14M1R
Sony VAIO VPCL14M1R needs the quirk to make the speaker working properly.

Tested-by: Dmitriy <mexx400@yandex.ru>
Cc: <stable@vger.kernel.org>
Signed-off-by: Sergei A. Trusov <sergei.a.trusov@ya.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-02 14:18:49 +02:00
Sergei Shtylyov
f29bb7861a powerpc/83xx/mpc832x_rdb: fix of_irq_to_resource() error check
of_irq_to_resource() has recently been fixed to return negative error #'s
along with 0 in case of failure, however the Freescale MPC832x RDB board
code still only regards 0 as a failure indication -- fix it up.

Fixes: 7a4228bbff ("of: irq: use of_irq_get() in of_irq_to_resource()")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-02 19:26:52 +10:00
Michał Mirosław
9e9509e38f gpio: tegra: fix unbalanced chained_irq_enter/exit
When more than one GPIO IRQs are triggered simultaneously,
tegra_gpio_irq_handler() called chained_irq_exit() multiple
times for one chained_irq_enter().

Fixes: 3c92db9ac0
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
[Also changed the variable to a bool]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-02 10:42:38 +02:00
Boris Brezillon
ee02f73e04 mtd: nand: atmel: Fix EDO mode check
EDO mode should be used when tRC is less than 30ns, but timings are
expressed in picoseconds in the nand_sdr_timings struct.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: f9ce2eddf1 ("mtd: nand: atmel: Add ->setup_data_interface() hooks")
Reported-by: Alexander Dahl <ada@thorsis.com>
Tested-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-02 10:26:43 +02:00
Boris Brezillon
6d29231000 mtd: nand: Declare tBERS, tR and tPROG as u64 to avoid integer overflow
All timings in nand_sdr_timings are expressed in picoseconds but some
of them may not fit in an u32.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: 204e7ecd47 ("mtd: nand: Add a few more timings to nand_sdr_timings")
Reported-by: Alexander Dahl <ada@thorsis.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Alexander Dahl <ada@thorsis.com>
Tested-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-02 10:26:42 +02:00
Boris Brezillon
a11bf5ed95 mtd: nand: Fix timing setup for NANDs that do not support SET FEATURES
Some ONFI NANDs do not support the SET/GET FEATURES commands, which,
according to the spec, is perfectly valid.

On these NANDs we can't set a specific timing mode using the "timing
mode" feature, and we should assume the NAND does not require any setup
to enter a specific timing mode.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: d8e725dd83 ("mtd: nand: automate NAND timings selection")
Reported-by: Alexander Dahl <ada@thorsis.com>
Cc: <stable@vger.kernel.org>
Tested-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-02 10:26:41 +02:00
Jonathan Corbet
cb25fae182 mtd: nand: Fix a docs build warning
Commit 0b4773fd16 (mtd: nand: Drop unused cached programming support)
removed the "cached" parameter from nand_write_page(), but did not update
the kerneldoc comments, creating this docs build warning:

  ./drivers/mtd/nand/nand_base.c:2751: warning: Excess function parameter 'cached' description in 'nand_write_page'

Remove the offending line so we can have a little peace and quiet.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-02 10:26:41 +02:00
Bryan O'Donoghue
791eccd949 mtd: nand: sunxi: fix potential divide-by-zero error
clk_round_rate() can return <= 0. Currently the value returned by
clk_round_rate() is used directly for a division. This patch introduces a
guard to ensure a divide-by-zero or a divide by a negative number for that
matter can't happen by bugging out returning -EINVAL if clk_round_rate()
returns <= 0.

Fixes: 2d43457f79 ("mtd: nand: sunxi: fix EDO mode selection")
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-02 10:26:40 +02:00
Miquel Raynal
f7f8c1756e nand: fix wrong default oob layout for small pages using soft ecc
When using soft ecc, if no ooblayout is given, the core automatically
uses one of the nand_ooblayout_{sp,lp}*() functions to determine the
layout inside the out of band data.

Until kernel version 4.6, struct nand_ecclayout was used for that
purpose. During the migration from 4.6 to 4.7, an error shown up in the
small page layout, in the case oob section is only 8 bytes long.

The layout was using three bytes (0, 1, 2) for ecc, two bytes (3, 4)
as free bytes, one byte (5) for bad block marker and finally
two bytes (6, 7) as free bytes, as shown there:

[linux-4.6] drivers/mtd/nand/nand_base.c:52
static struct nand_ecclayout nand_oob_8 = {
	.eccbytes = 3,
	.eccpos = {0, 1, 2},
	.oobfree = {
		{.offset = 3,
		 .length = 2},
		{.offset = 6,
		 .length = 2} }
};

This fixes the current implementation which is incoherent. It
references bit 3 at the same time as an ecc byte and a free byte.

Furthermore, it is clear with the previous implementation that there
is only one ecc section with 8 bytes oob sections. We shall return
-ERANGE in the nand_ooblayout_ecc_sp() function when asked for the
second section.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Fixes: 41b207a70d ("mtd: nand: implement the default mtd_ooblayout_ops")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-02 10:26:26 +02:00
David S. Miller
12c5d0c048 Merge branch 'net-Fix-64-bit-statistics-seqcount-init'
Florian Fainelli says:

====================
drivers: net: Fix 64-bit statistics seqcount init

This patch series fixes a bunch of drivers to have their 64-bit statistics
seqcount cookie be initialized correctly. Most of these drivers (except b44,
gtp) are probably used on 64-bit only hosts and so the lockdep splat might have
never been seen.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:07 -07:00
Florian Fainelli
87173cd6cf ipvlan: Fix 64-bit statistics seqcount initialization
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that by using the proper helper function: netdev_alloc_pcpu_stats().

Fixes: 2ad7bf3638 ("ipvlan: Initial check-in of the IPVLAN driver.")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:07 -07:00
Florian Fainelli
4a0dee1ffe netvsc: Initialize 64-bit stats seqcount
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that. In commit 6c80f3fc23 ("netvsc: report per-channel stats in
ethtool statistics") netdev_alloc_pcpu_stats() was removed in favor of
open-coding the 64-bits statistics, except that u64_stats_init() was
missed.

Fixes: 6c80f3fc23 ("netvsc: report per-channel stats in ethtool statistics")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:07 -07:00
Florian Fainelli
790cb2ebb3 gtp: Initialize 64-bit per-cpu stats correctly
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that by using netdev_alloc_pcpu_stats() instead of an open coded
allocation.

Fixes: 459aa660eb ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:07 -07:00
Florian Fainelli
7ceb781a1a nfp: Initialize RX and TX ring 64-bit stats seqcounts
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that.

Fixes: 4c3523623d ("net: add driver for Netronome NFP4000/NFP6000 NIC VFs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:07 -07:00
Florian Fainelli
7c3a4626eb ixgbe: Initialize 64-bit stats seqcounts
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that.

Fixes: 4197aa7bb8 ("ixgbevf: provide 64 bit statistics")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:07 -07:00
Florian Fainelli
7d6d067790 i40e: Initialize 64-bit statistics TX ring seqcount
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that.

Fixes: 980e9b1186 ("i40e: Add support for 64 bit netstats")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:06 -07:00
Florian Fainelli
e43c9f23ef b44: Initialize 64-bit stats seqcount
On 32-bit hosts and with CONFIG_DEBUG_LOCK_ALLOC we should be seeing a
lockdep splat indicating this seqcount is not correctly initialized, fix
that.

Fixes: eeda858552 ("b44: add 64 bit stats")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 20:06:06 -07:00
Chuanxiao Dong
f2e2c00adc drm/i915/gvt: clean workload queue if error happened
If a workload caused a HW GPU hang or it is in the middle of
vGPU reset, the workload queue should be cleaned up to emulate
the hang state of the GPU.

v2:
- use ENGINE_MASK(ring_id) instead of (1 << ring_id). (Zhenyu)

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-08-02 10:07:46 +08:00
Chuanxiao Dong
6184cc8ddb drm/i915/gvt: change resetting to resetting_eng
Use resetting_eng to identify which engine is resetting
so the rest ones' workload won't be impacted

v2:
- use ENGINE_MASK(ring_id) instead of (1 << ring_id). (Zhenyu)

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-08-02 10:07:40 +08:00
Marc Zyngier
a477b9cd37 PCI: Add pci_reset_function_locked()
The implementation of PCI workarounds may require that the device is reset
from its probe function.  This implies that the PCI device lock is already
held, and makes calling pci_reset_function() impossible (since it will
itself try to take that lock).

Add pci_reset_function_locked(), which is the equivalent of
pci_reset_function(), except that it requires the PCI device lock to be
already held by the caller.

Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
[bhelgaas: folded in fix for conflict with 52354b9d1f ("PCI: Remove
__pci_dev_reset() and pci_dev_reset()")]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org	# 4.11: 52354b9d1f: PCI: Remove __pci_dev_reset() and pci_dev_reset()
Cc: stable@vger.kernel.org	# 4.11
2017-08-01 20:11:02 -05:00
Arnd Bergmann
8f93e043d0 drm/msm: gpu: don't abuse dma_alloc for non-DMA allocations
In zap_shader_load_mdt(), we pass a pointer to a phys_addr_t
into dmam_alloc_coherent, which the compiler warns about:

drivers/gpu/drm/msm/adreno/a5xx_gpu.c: In function 'zap_shader_load_mdt':
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:54:50: error: passing argument 3 of 'dmam_alloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]

The returned DMA address is later passed on to a function that
takes a phys_addr_t, so it's clearly wrong to use the DMA
mapping interface here: the memory may be uncached, or the
address may be completely wrong if there is an IOMMU connected
to the device. What the code actually wants to do is to get
the physical address from the reserved-mem node. It goes through
the dma-mapping interfaces for obscure reasons, and this
apparently only works by chance, relying on specific bugs
in the error handling of the arm64 dma-mapping implementation.

The same problem existed in the "venus" media driver, which was
now fixed by Stanimir Varbanov after long discussions.

In order to make some progress here, I have now ported his
approach over to the adreno driver. The patch is currently
untested, and should get a good review, but it is now much
simpler than the original, and it should be obvious what
goes wrong if I made a mistake in the port.

See also: a6e2d36bf6 ("media: venus: don't abuse dma_alloc for non-DMA allocations")
Cc: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Fixes: 7c65817e6d ("drm/msm: gpu: Enable zap shader for A5XX")
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-and-Tested-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:39:00 -04:00
Arnd Bergmann
bdab8e8b2b drm/msm: gpu: call qcom_mdt interfaces only for ARCH_QCOM
When compile-testing for something other than ARCH_QCOM,
we run into a link error:

drivers/gpu/drm/msm/adreno/a5xx_gpu.o: In function `a5xx_hw_init':
a5xx_gpu.c:(.text.a5xx_hw_init+0x600): undefined reference to `qcom_mdt_get_size'
a5xx_gpu.c:(.text.a5xx_hw_init+0x93c): undefined reference to `qcom_mdt_load'

There is already an #ifdef that tries to check for CONFIG_QCOM_MDT_LOADER,
but that symbol is only meaningful when building for ARCH_QCOM.

This adds a compile-time check for ARCH_QCOM, and clarifies the
Kconfig select statement so we don't even try it for other targets.

The check for CONFIG_QCOM_MDT_LOADER can then go away, which also
improves compile-time coverage and makes the code a little nicer
to read.

Fixes: 7c65817e6d ("drm/msm: gpu: Enable zap shader for A5XX")
Acked-by: Jordan Crouse <jcrouse@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:25:51 -04:00
Archit Taneja
541de4c9c9 drm/msm/adreno: Prevent unclocked access when retrieving timestamps
msm_gpu's get_timestamp() op (called by the MSM_GET_PARAM ioctl) can
result in register accesses. We need our power domain and clocks to
be active for that. Make sure they are enabled here.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:20:13 -04:00
Jordan Crouse
cdbc78ba70 drm/msm: Remove __user from __u64 data types
__user should be used to identify user pointers and not __u64
variables containing pointers.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:11:48 -04:00
Jordan Crouse
b0135ab91a drm/msm: args->fence should be args->flags
Fix a typo in msm_ioctl_gem_submit - check args->flags for the
MSM_SUBMIT_NO_IMPLICIT flag instead of args->fence.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:11:28 -04:00
Jordan Crouse
a23cb3b52f drm/msm: Turn off hardware clock gating before reading A5XX registers
On A5XX GPU hardware clock gating needs to be turned off before
reading certain GPU registers via AHB. Turn off HWCG before calling
adreno_show() to safely dump all the registers without a system hang.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:10:53 -04:00
Jordan Crouse
6e749e5971 drm/msm: Allow hardware clock gating to be toggled
There are some use cases wherein we need to turn off hardware clock
gating before reading certain registers. Modify the A5XX HWCG function
to allow user to enable or disable clock gating at will.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:10:28 -04:00
Jordan Crouse
3394f5618d drm/msm: Remove some potentially blocked register ranges
The 0xf400 and 0xf800 ranges are in the RBBM_SECVID block which may
be protected from CPU access. Skip dumping them since they are minimally
useful for debugging and they aren't worth a system hang.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 19:09:25 -04:00
K. Den
1bff8a0c1f gue: fix remcsum when GRO on and CHECKSUM_PARTIAL boundary is outer UDP
In the case that GRO is turned on and the original received packet is
CHECKSUM_PARTIAL, if the outer UDP header is exactly at the last
csum-unnecessary point, which for instance could occur if the packet
comes from another Linux guest on the same Linux host, we have to do
either remcsum_adjust or set up CHECKSUM_PARTIAL again with its
csum_start properly reset considering RCO.

However, since b7fe10e5eb ("gro: Fix remcsum offload to deal with frags
in GRO") that barrier in such case could be skipped if GRO turned on,
hence we pass over it and the inner L4 validation mistakenly reckons
it as a bad csum.

This patch makes remcsum_offload being reset at the same time of GRO
remcsum cleanup, so as to make it work in such case as before.

Fixes: b7fe10e5eb ("gro: Fix remcsum offload to deal with frags in GRO")
Signed-off-by: Koichiro Den <den@klaipeden.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 16:09:14 -07:00
K. Den
be73b3043b vxlan: fix remcsum when GRO on and CHECKSUM_PARTIAL boundary is outer UDP
In the case that GRO is turned on and the original received packet is
CHECKSUM_PARTIAL, if the outer UDP header is exactly at the last
csum-unnecessary point, which for instance could occur if the packet
comes from another Linux guest on the same Linux host, we have to do
either remcsum_adjust or set up CHECKSUM_PARTIAL again with its
csum_start properly reset considering RCO.

However, since b7fe10e5ebac("gro: Fix remcsum offload to deal with frags
in GRO") that barrier in such case could be skipped if GRO turned on,
hence we pass over it and the inner L4 validation mistakenly reckons
it as a bad csum.

This patch makes remcsum_offload being reset at the same time of GRO
remcsum cleanup, so as to make it work in such case as before.

Fixes: b7fe10e5eb ("gro: Fix remcsum offload to deal with frags in GRO")
Signed-off-by: Koichiro Den <den@klaipeden.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01 16:09:14 -07:00
Archit Taneja
d0538f5048 drm/msm/mdp5: Drop clock names with "_clk" suffix
We have upstream bindings (msm8916) that have the "_clk" suffix in the
clock names. The downstream bindings also require it.

We want to drop the "_clk" suffix and at the same time support existing
bindings. Update the MDP5 code with the the msm_clk_get() helper to
support both old and new clock names.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 18:50:00 -04:00
Archit Taneja
b0e77fd87c drm/msm/mdp5: Fix typo in encoder_enable path
The mdp5_cmd_encoder_disable is accidentally called in the encoder enable
path. We've not seen any problems since we haven't tested with command
mode panels in a while. Fix the copy-paste error.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 18:43:36 -04:00
Andy Lutomirski
51391caf99 platform/x86: dell-wmi: Fix driver interface version query
When I converted dell-wmi to the new bus infrastructure, I left the
call to dell_wmi_check_descriptor_buffer() in dell_wmi_init().  This
could cause two problems:

 - An error message when loading the driver on a system without
   dell-wmi.  We'd try to read the event descriptor even if the WMI
   GUID wasn't there.

 - A possible race if dell-wmi was loaded manually before wmi was
   fully initialized.

Fix it by moving the call to the probe function where it belongs.

Fixes: bff589be59 ("platform/x86: dell-wmi: Convert to the WMI bus infrastructure")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-08-01 15:41:43 -07:00
Hans Verkuil
79687057c2 drm/msm: NULL pointer dereference in drivers/gpu/drm/msm/msm_gem_vma.c
While I was testing the upcoming adv7533 CEC support with my Dragonboard c410
I encountered this NULL pointer dereference:

[   17.912822] Unable to handle kernel NULL pointer dereference at virtual address 000000e8
[   17.917191] user pgtable: 4k pages, 48-bit VAs, pgd = ffff800030e9f000
[   17.925249] [00000000000000e8] *pgd=00000000b0daf003, *pud=0000000000000000
[   17.931650] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[   17.938395] Modules linked in: btqcomsmd btqca arc4 wcn36xx mac80211 bluetooth cfg80211 ecdh_generic r8152 snd_soc_hdmi_codec adv7511 cec
qcom_wcnss_pil msm mdt_loader drm_kms_helper msm_rng rng_core drm
[   17.943967] CPU: 0 PID: 1684 Comm: Xorg Tainted: G        W       4.13.0-rc1-dragonboard #111
[   17.962005] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[   17.970685] task: ffff800031236c00 task.stack: ffff800033fbc000
[   17.977582] PC is at msm_gem_unmap_vma+0x20/0x80 [msm]
[   17.983213] LR is at put_iova+0x60/0xb8 [msm]
[   17.988303] pc : [<ffff000000ac2d58>] lr : [<ffff000000ac07c8>] pstate: 20000145
[   17.992733] sp : ffff800033fbfb30
[   18.000193] x29: ffff800033fbfb30 x28: ffff800030b5f000
[   18.003407] x27: 00000000000000b4 x26: ffff0000009f8cd8
[   18.008789] x25: 0000000000000004 x24: dead000000000100
[   18.014085] x23: dead000000000200 x22: ffff800030b5fd40
[   18.019379] x21: ffff800030b5fc00 x20: 0000000000000000
[   18.024675] x19: ffff80003082bf00 x18: 0000000000000000
[   18.029970] x17: 0000ffffb3347e70 x16: ffff000008207638
[   18.035265] x15: 0000000000000053 x14: 0000000000000000
[   18.040560] x13: 0000000000000038 x12: 0101010101010101
[   18.045855] x11: 7f7f7f7f7f7f7f7f x10: 0000000000000040
[   18.051150] x9 : ffff800030b5f038 x8 : ffff800031657b50
[   18.056446] x7 : ffff800031657b78 x6 : 0000000000000000
[   18.061740] x5 : 0000000000000000 x4 : 00000000b5c01000
[   18.067036] x3 : 0000000000000000 x2 : ffff8000337bf300
[   18.072330] x1 : ffff80003082bf00 x0 : 0000000000000000
[   18.077629] Process Xorg (pid: 1684, stack limit = 0xffff800033fbc000)
[   18.082925] Stack: (0xffff800033fbfb30 to 0xffff800033fc0000)
[   18.089262] fb20:                                   ffff800033fbfb60 ffff000000ac07c8
[   18.095081] fb40: ffff80003082bf00 ffff800030b5fc90 ffff800030b5fc00 ffff000000abf4a0
[   18.102893] fb60: ffff800033fbfba0 ffff000000ac16b0 ffff800030b5fc00 ffff8000338ff870
[   18.110706] fb80: ffff8000338ff800 ffff800030b5fc00 ffff800030b5fda8 ffff800033fbfd80
[   18.118518] fba0: ffff800033fbfbe0 ffff0000009d4244 ffff800030b5fc00 ffff800030b5f038
[   18.126332] fbc0: ffff800033fbfbd0 ffff800030b5fc00 ffff800030b5f038 ffff0000009d4840
[   18.134144] fbe0: ffff800033fbfbf0 ffff0000009d4858 ffff800033fbfc10 ffff0000009d48e4
[   18.141955] fc00: ffff800030b5fc00 ffff8000338ffd98 ffff800033fbfc30 ffff0000009d49a4
[   18.149768] fc20: ffff800030b5fc00 ffff800030b5f000 ffff800033fbfc60 ffff0000009d4a4c
[   18.157581] fc40: ffff800030b5f050 ffff800030b5f000 0000000000000001 ffff800030b5fc00
[   18.165394] fc60: ffff800033fbfca0 ffff0000009d4ab0 0000000000000018 ffff800030b5f000
[   18.173206] fc80: ffff0000009efd28 ffff800033fbfd80 ffff8000338ff800 ffff0000009d56a8
[   18.181019] fca0: ffff800033fbfcb0 ffff0000009efd54 ffff800033fbfcc0 ffff0000009d56c8
[   18.188831] fcc0: ffff800033fbfd00 ffff0000009d58e0 ffff0000009fa6e0 00000000c00464b4
[   18.196643] fce0: 0000000000000004 ffff80003082b400 0000ffffea1f0e00 0000000000000000
[   18.204456] fd00: ffff800033fbfe00 ffff000008206f0c ffff80000335caf8 ffff80003082b400
[   18.212269] fd20: 0000ffffea1f0e00 ffff80003082b400 00000000c00464b4 0000ffffea1f0e00
[   18.220081] fd40: 0000000000000124 000000000000001d ffff0000089d2000 ffff800031236c00
[   18.227894] fd60: ffff800033fbfd80 0000000000000004 ffff0000009efd28 ffff800033fbfd80
[   18.235706] fd80: 0000000100000001 0000008000000001 0000001800000020 0000000000000001
[   18.243518] fda0: 0000000100000000 0000000100000001 0000ffff00000000 0000ffff00000000
[   18.251331] fdc0: 0000000000000124 0000000000000038 ffff0000089d2000 ffff800031236c00
[   18.259144] fde0: ffff800033fbfe40 ffff000008214124 ffff800033fbfe30 ffff000008203290
[   18.266956] fe00: ffff800033fbfe80 ffff0000082076b4 0000000000000000 ffff800030d8a000
[   18.274768] fe20: ffff80003082b400 0000000000000016 ffff800033fbfe50 ffff0000081f0488
[   18.282581] fe40: ffff800033fbfe80 ffff000008207678 0000000000000000 ffff80003082b400
[   18.290393] fe60: ffff800033fbfe70 ffff0000082138b0 ffff800033fbfe80 ffff000008207658
[   18.298207] fe80: 0000000000000000 ffff000008082f84 0000000000000000 0000800034a16000
[   18.306017] fea0: ffffffffffffffff 0000ffffb3347e7c 0000000000000000 0000000000000015
[   18.313832] fec0: 0000000000000016 00000000c00464b4 0000ffffea1f0e00 0000000000000001
[   18.321643] fee0: 0000000000000020 0000000000000080 0000000000000001 0000000000000000
[   18.329456] ff00: 000000000000001d 000000012692c5b0 0101010101010101 7f7f7f7f7f7f7f7f
[   18.337269] ff20: 0101010101010101 0000000000000038 0000000000000000 0000000000000053
[   18.345082] ff40: 0000ffffb368b2b8 0000ffffb3347e70 0000000000000000 0000ffffb3847000
[   18.352894] ff60: 0000ffffea1f0e00 00000000c00464b4 0000000000000016 0000ffffea1f0edc
[   18.360705] ff80: 000000012692ad20 0000000000000003 00000001214282e4 0000000121428388
[   18.368518] ffa0: 0000000000000000 0000ffffea1f0da0 0000ffffb367185c 0000ffffea1f0da0
[   18.376332] ffc0: 0000ffffb3347e7c 0000000000000000 0000000000000016 000000000000001d
[   18.384142] ffe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   18.391953] Call trace:
[   18.399760] Exception stack(0xffff800033fbf950 to 0xffff800033fbfa80)
[   18.402023] f940:                                   ffff80003082bf00 0001000000000000
[   18.408622] f960: ffff800033fbfb30 ffff000000ac2d58 0000000020000145 ffff8000338ffa78
[   18.416435] f980: 0000000000000000 0000000000000000 ffff800033fbf9e0 ffff0000089afcf0
[   18.424248] f9a0: ffff80000348f230 ffff8000338ffa78 0000000000000000 0000000000000000
[   18.432060] f9c0: ffff8000338ffaa8 0000000000000001 ffff800033fbfb80 ffff0000009e8f38
[   18.439872] f9e0: ffff800033fbfa10 ffff0000089a9ff8 0000000000000027 ffff80003082b918
[   18.447684] fa00: 0000000000000000 ffff80003082bf00 ffff8000337bf300 0000000000000000
[   18.455497] fa20: 00000000b5c01000 0000000000000000 0000000000000000 ffff800031657b78
[   18.463310] fa40: ffff800031657b50 ffff800030b5f038 0000000000000040 7f7f7f7f7f7f7f7f
[   18.471122] fa60: 0101010101010101 0000000000000038 0000000000000000 0000000000000053
[   18.479062] [<ffff000000ac2d58>] msm_gem_unmap_vma+0x20/0x80 [msm]
[   18.486862] [<ffff000000ac07c8>] put_iova+0x60/0xb8 [msm]
[   18.492938] [<ffff000000ac16b0>] msm_gem_free_object+0x60/0x198 [msm]
[   18.498432] [<ffff0000009d4244>] drm_gem_object_free+0x1c/0x58 [drm]
[   18.504854] [<ffff0000009d4858>] drm_gem_object_put_unlocked+0x90/0xa0 [drm]
[   18.511273] [<ffff0000009d48e4>] drm_gem_object_handle_put_unlocked+0x64/0xd0 [drm]
[   18.518300] [<ffff0000009d49a4>] drm_gem_object_release_handle+0x54/0x98 [drm]
[   18.525679] [<ffff0000009d4a4c>] drm_gem_handle_delete+0x64/0xb8 [drm]
[   18.532968] [<ffff0000009d4ab0>] drm_gem_dumb_destroy+0x10/0x18 [drm]
[   18.539479] [<ffff0000009efd54>] drm_mode_destroy_dumb_ioctl+0x2c/0x40 [drm]
[   18.545992] [<ffff0000009d56c8>] drm_ioctl_kernel+0x68/0xe0 [drm]
[   18.553105] [<ffff0000009d58e0>] drm_ioctl+0x178/0x3b0 [drm]
[   18.558970] [<ffff000008206f0c>] do_vfs_ioctl+0xa4/0x7d0
[   18.564694] [<ffff0000082076b4>] SyS_ioctl+0x7c/0x98
[   18.569992] [<ffff000008082f84>] el0_svc_naked+0x38/0x3c
[   18.574941] Code: a90153f3 aa0003f4 f90013f5 aa0103f3 (f9407400)
[   18.580502] ---[ end trace b1ac6888ec40b0be ]---

It turns out that the aspace argument in msm_gem_unmap_vma() is NULL.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[Note: this case gets hit with !IOMMU config]
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 18:41:16 -04:00
Hans Verkuil
b3949a9a3e drm/msm: fix WARN_ON in add_vma() with no iommu
While I was testing the upcoming adv7533 CEC support with my Dragonboard c410
I encountered this warning several times during boot:

[    4.408309] WARNING: CPU: 3 PID: 1347 at drivers/gpu/drm/msm/msm_gem.c:312 add_vma+0x78/0x88 [msm]
[    4.412951] Modules linked in: snd_soc_hdmi_codec adv7511 cec qcom_wcnss_pil msm mdt_loader drm_kms_helper msm_rng rng_core drm
[    4.421728] CPU: 3 PID: 1347 Comm: kworker/3:3 Not tainted 4.13.0-rc1-dragonboard #111
[    4.433090] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
[    4.441081] Workqueue: events deferred_probe_work_func
[    4.447929] task: ffff800031243600 task.stack: ffff800003394000
[    4.453023] PC is at add_vma+0x78/0x88 [msm]
[    4.458823] LR is at _msm_gem_new+0xd4/0x188 [msm]
[    4.463207] pc : [<ffff000000ac01f8>] lr : [<ffff000000ac06b4>] pstate: 40000145
[    4.467811] sp : ffff8000033978a0
[    4.475357] x29: ffff8000033978a0 x28: ffff8000031dea18
[    4.478572] x27: ffff800003933a00 x26: ffff800003b39800
[    4.483953] x25: ffff8000338ff800 x24: 0000000000000001
[    4.489249] x23: 0000000000000000 x22: ffff800003b39800
[    4.494544] x21: ffff8000338ff800 x20: 0000000000000000
[    4.499839] x19: ffff800003932600 x18: 0000000000000001
[    4.505135] x17: 0000ffff8969e9e0 x16: ffff7e00000ce7a0
[    4.510429] x15: ffffffffffffffff x14: ffff8000833977ef
[    4.515724] x13: ffff8000033977f3 x12: 0000000000000038
[    4.521020] x11: 0101010101010101 x10: ffffff7f7fff7f7f
[    4.526315] x9 : 0000000000000000 x8 : ffff800003932800
[    4.531633] x7 : 0000000000000000 x6 : 000000000000003f
[    4.531644] x5 : 0000000000000040 x4 : 0000000000000000
[    4.531650] x3 : ffff800031243600 x2 : 0000000000000000
[    4.531655] x1 : 0000000000000000 x0 : 0000000000000000
[    4.531670] Call trace:
[    4.531676] Exception stack(0xffff8000033976c0 to 0xffff8000033977f0)
[    4.531683] 76c0: ffff800003932600 0001000000000000 ffff8000033978a0 ffff000000ac01f8
[    4.531688] 76e0: 0000000000000140 0000000000000000 ffff800003932550 ffff800003397780
[    4.531694] 7700: ffff800003397730 ffff000008261ce8 0000000000000000 ffff8000031d2f80
[    4.531699] 7720: ffff800003397800 ffff0000081d671c 0000000000000140 0000000000000000
[    4.531705] 7740: ffff000000ac04c0 0000000000004003 ffff800003397908 00000000014080c0
[    4.531710] 7760: 0000000000000000 ffff800003b39800 0000000000000000 0000000000000000
[    4.531716] 7780: 0000000000000000 ffff800031243600 0000000000000000 0000000000000040
[    4.531721] 77a0: 000000000000003f 0000000000000000 ffff800003932800 0000000000000000
[    4.531726] 77c0: ffffff7f7fff7f7f 0101010101010101 0000000000000038 ffff8000033977f3
[    4.531730] 77e0: ffff8000833977ef ffffffffffffffff
[    4.531881] [<ffff000000ac01f8>] add_vma+0x78/0x88 [msm]
[    4.532011] [<ffff000000ac06b4>] _msm_gem_new+0xd4/0x188 [msm]
[    4.532134] [<ffff000000ac1900>] msm_gem_new+0x10/0x18 [msm]
[    4.532260] [<ffff000000acb274>] msm_dsi_host_modeset_init+0x17c/0x268 [msm]
[    4.532384] [<ffff000000ac9024>] msm_dsi_modeset_init+0x34/0x1b8 [msm]
[    4.532504] [<ffff000000ab6168>] modeset_init+0x408/0x488 [msm]
[    4.532623] [<ffff000000ab6c4c>] mdp5_kms_init+0x2b4/0x338 [msm]
[    4.532745] [<ffff000000abeff8>] msm_drm_bind+0x218/0x4e8 [msm]
[    4.532755] [<ffff00000855d744>] try_to_bring_up_master+0x1f4/0x318
[    4.532762] [<ffff00000855d900>] component_add+0x98/0x180
[    4.532887] [<ffff000000ac8da0>] dsi_dev_probe+0x18/0x28 [msm]
[    4.532895] [<ffff000008565fe8>] platform_drv_probe+0x58/0xc0
[    4.532901] [<ffff00000856410c>] driver_probe_device+0x324/0x458
[    4.532907] [<ffff00000856440c>] __device_attach_driver+0xac/0x170
[    4.532913] [<ffff000008561ef4>] bus_for_each_drv+0x4c/0x98
[    4.532918] [<ffff000008563c38>] __device_attach+0xc0/0x160
[    4.532924] [<ffff000008564530>] device_initial_probe+0x10/0x18
[    4.532929] [<ffff000008562f84>] bus_probe_device+0x94/0xa0
[    4.532934] [<ffff0000085635d4>] deferred_probe_work_func+0x8c/0xe8
[    4.532941] [<ffff0000080d79bc>] process_one_work+0x1d4/0x330
[    4.532946] [<ffff0000080d7b60>] worker_thread+0x48/0x468
[    4.532952] [<ffff0000080ddae4>] kthread+0x12c/0x130
[    4.532958] [<ffff000008082f10>] ret_from_fork+0x10/0x40
[    4.532962] ---[ end trace b1ac6888ec40b0bb ]---

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-08-01 18:39:35 -04:00