Commit Graph

970634 Commits

Author SHA1 Message Date
Johannes Berg
c00b0b65b3 iwlwifi: pcie: avoid potential PNVM leaks
[ Upstream commit 34b9434cd0d425330a0467e767f8d047ef62964d ]

If we erroneously try to set the PNVM data again after it has
already been set, we could leak the old DMA memory. Avoid that
and warn, we shouldn't be doing this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 6972592850 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.929c2d680429.I086b9490e6c005f3bcaa881b617e9f61908160f3@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:47 +01:00
Stephan Gerhold
fd8c453d53 ASoC: qcom: lpass: Fix out-of-bounds DAI ID lookup
[ Upstream commit 70041000450d0a071bf9931d634c8e2820340236 ]

The "dai_id" given into LPAIF_INTFDMA_REG(...) is already the real
DAI ID, not an index into v->dai_driver. Looking it up again seems
entirely redundant.

For IPQ806x (and SC7180 since commit 09a4f6f5d21c
("ASoC: dt-bindings: lpass: Fix and common up lpass dai ids") this is
now often an out-of-bounds read because the indexes in the "dai_driver"
array no longer match the actual DAI ID.

Cc: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: 7cb37b7bd0 ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210125104442.135899-1-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:47 +01:00
Pierre-Louis Bossart
b030ba7f12 ASoC: SOF: Intel: soundwire: fix select/depend unmet dependencies
[ Upstream commit bd9038faa9d7f162b47e1577e35ec5eac39f9d90 ]

The LKP bot reports the following issue:

WARNING: unmet direct dependencies detected for SOUNDWIRE_INTEL
  Depends on [m]: SOUNDWIRE [=m] && ACPI [=y] && SND_SOC [=y]
  Selected by [y]:
  - SND_SOC_SOF_INTEL_SOUNDWIRE [=y] && SOUND [=y] && !UML &&
  SND [=y] && SND_SOC [=y] && SND_SOC_SOF_TOPLEVEL [=y] &&
  SND_SOC_SOF_INTEL_TOPLEVEL [=y] && SND_SOC_SOF_INTEL_PCI [=y]

This comes from having tristates being configured independently, when
in practice the CONFIG_SOUNDWIRE needs to be aligned with the SOF
choices: when the SOF code is compiled as built-in, the
CONFIG_SOUNDWIRE also needs to be 'y'.

The easiest fix is to replace the 'depends' with a 'select' and have a
single user selection to activate SoundWire on Intel platforms. This
still allows regmap to be compiled independently as a module.

This is just a temporary fix, the select/depend usage will be
revisited and the SOF Kconfig re-organized, as suggested by Arnd
Bergman.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: a115ab9b8b ('ASoC: SOF: Intel: add build support for SoundWire')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210122005725.94163-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:47 +01:00
Trond Myklebust
d46c0d64db pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
[ Upstream commit 1bcf34fdac5f8c2fcd16796495db75744612ca27 ]

When we're scheduling a layoutreturn, we need to ignore any further
incoming layouts with sequence ids that are going to be affected by the
layout return.

Fixes: 44ea8dfce0 ("NFS/pnfs: Reference the layout cred in pnfs_prepare_layoutreturn()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:47 +01:00
Trond Myklebust
dba0d4b150 pNFS/NFSv4: Fix a layout segment leak in pnfs_layout_process()
[ Upstream commit 814b84971388cd5fb182f2e914265b3827758455 ]

If the server returns a new stateid that does not match the one in our
cache, then pnfs_layout_process() will leak the layout segments returned
by pnfs_mark_layout_stateid_invalid().

Fixes: 9888d837f3 ("pNFS: Force a retry of LAYOUTGET if the stateid doesn't match our cache")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:47 +01:00
Nicholas Piggin
ae02c0008c powerpc/64s: prevent recursive replay_soft_interrupts causing superfluous interrupt
[ Upstream commit 4025c784c573cab7e3f84746cc82b8033923ec62 ]

When an asynchronous interrupt calls irq_exit, it checks for softirqs
that may have been created, and runs them. Running softirqs enables
local irqs, which can replay pending interrupts causing recursion in
replay_soft_interrupts. This abridged trace shows how this can occur:

! NIP replay_soft_interrupts
  LR  interrupt_exit_kernel_prepare
  Call Trace:
    interrupt_exit_kernel_prepare (unreliable)
    interrupt_return
  --- interrupt: ea0 at __rb_reserve_next
  NIP __rb_reserve_next
  LR __rb_reserve_next
  Call Trace:
    ring_buffer_lock_reserve
    trace_function
    function_trace_call
    ftrace_call
    __do_softirq
    irq_exit
    timer_interrupt
!   replay_soft_interrupts
    interrupt_exit_kernel_prepare
    interrupt_return
  --- interrupt: ea0 at arch_local_irq_restore

This can not be prevented easily, because softirqs must not block hard
irqs, so it has to be dealt with.

The recursion is bounded by design in the softirq code because softirq
replay disables softirqs and loops around again to check for new
softirqs created while it ran, so that's not a problem.

However it does mess up interrupt replay state, causing superfluous
interrupts when the second replay_soft_interrupts clears a pending
interrupt, leaving it still set in the first call in the 'happened'
local variable.

Fix this by not caching a copy of irqs_happened across interrupt
handler calls.

Fixes: 3282a3da25 ("powerpc/64: Implement soft interrupt replay in C")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210123061244.2076145-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Ricardo Ribalda
5f78c6ce1f ASoC: Intel: Skylake: skl-topology: Fix OOPs ib skl_tplg_complete
[ Upstream commit c1c3ba1f78354a20222d291ed6fedd17b7a74fd7 ]

If dobj->control is not initialized we end up in an OOPs during
skl_tplg_complete:

[   26.553358] BUG: kernel NULL pointer dereference, address:
0000000000000078
[   26.561151] #PF: supervisor read access in kernel mode
[   26.566897] #PF: error_code(0x0000) - not-present page
[   26.572642] PGD 0 P4D 0
[   26.575479] Oops: 0000 [#1] PREEMPT SMP PTI
[   26.580158] CPU: 2 PID: 2082 Comm: udevd Tainted: G         C
5.4.81 #4
[   26.588232] Hardware name: HP Soraka/Soraka, BIOS
Google_Soraka.10431.106.0 12/03/2019
[   26.597082] RIP: 0010:skl_tplg_complete+0x70/0x144 [snd_soc_skl]

Fixes: 2d744ecf2b ("ASoC: Intel: Skylake: Automatic DMIC format configuration according to information from NHL")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Tested-by: Lukasz Majczak <lma@semihalf.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210121171644.131059-1-ribalda@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Pan Bian
cea3d7cd95 spi: altera: Fix memory leak on error path
[ Upstream commit 55a8b42e8645a6dab88674a30cb6ed328e660680 ]

Release master that have been previously allocated if the number of
chipselect is invalid.

Fixes: 8e04187c1b ("spi: altera: add SPI core parameters support via platform data.")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210120082635.49304-1-bianpan2016@163.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Srinivas Kandagatla
2bfc7e605a ASoC: qcom: lpass-ipq806x: fix bitwidth regmap field
[ Upstream commit 1e066a23e76f90c9c39c189fe0dbf7c6e3dd5044 ]

BIT_WIDTH field in I2S_CTL register is two bits wide, however
recent regmap field conversion patch trimmed it down to one bit.
Fix this by correcting the bit range!

Fixes: b5022a36d2 ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210119174700.32639-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Srinivas Kandagatla
02e5a1ee97 ASoC: qcom: Fix broken support to MI2S TERTIARY and QUATERNARY
[ Upstream commit cd3484f7f1386071b1af159023917ed12c182d39 ]

lpass hdmi support patch totally removed support for MI2S TERTIARY
and QUATERNARY.

One of the major issue was spotted with the design of having
separate SoC specific header files for the common lpass driver.
This design is prone to break as an when new SoC header is added
as the common DAI ids of other SoCs will be overwritten by the
new ones.

Having a common header qcom,lpass.h should fix the issue and any new
DAI ids should be added to the common header.

With this change lpass also needs a new of_xlate function to resolve
dai name.

Fixes: 7cb37b7bd0 ("ASoC: qcom: Add support for lpass hdmi driver")
Reported-by: Jun Nie <jun.nie@linaro.org>
Reported-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Srinivasa Rao <srivasam@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210119171527.32145-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Srinivasa Rao Mandadapu
c74d671e71 ASoC: qcom: Fix incorrect volatile registers
[ Upstream commit 315fbe4cef98ee5fb6085bc54c7f25eb06466c70 ]

MI2S and DMA control registers are not volatile, so remove these from volatile registers list.
Registers reset state check by reading non volatile registers makes no use,
so remove error check from cpu and platform trigger callbacks.
Initialized map variable two times in lpass platform trigger API,
so remove redundant initialization.

Fixes commit b182496822 ("ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state")

Signed-off-by: V Sujith Kumar Reddy <vsujithk@codeaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Link: https://lore.kernel.org/r/1608192514-29695-2-git-send-email-srivasam@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Srinivas Kandagatla
52178bea2c ASoC: dt-bindings: lpass: Fix and common up lpass dai ids
[ Upstream commit 09a4f6f5d21cb1f2633f4e8b893336b60eee9a01 ]

Existing header file design of having separate SoC specific header files
for the common lpass driver has mutiple issues.
This design is prone to break as an when new SoC header is added
as the common DAI ids of other SoCs will be overwritten by the
new ones.

One of them surfaced by recent patch that adds support to sc7180, this
one totally broke LPASS drivers on other Qualcomm SoCs.

Before this gets worst, fix this by having a common header qcom,lpass.h.
This should fix the issue and any new DAI ids should be added to the
common header. This will be more sustainable then the existing design!

Fixes: 12fbfc4cab ("ASoC: Add sc7180-lpass binding header hdmi define")
Reported-by: Jun Nie <jun.nie@linaro.org>
Reported-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Srinivasa Rao <srivasam@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210119171527.32145-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Kamal Heib
571a2dd898 RDMA/cxgb4: Fix the reported max_recv_sge value
[ Upstream commit a372173bf314d374da4dd1155549d8ca7fc44709 ]

The max_recv_sge value is wrongly reported when calling query_qp, This is
happening due to a typo when assigning the max_recv_sge value, the value
of sq_max_sges was assigned instead of rq_max_sges.

Fixes: 3e5c02c9ef ("iw_cxgb4: Support query_qp() verb")
Link: https://lore.kernel.org/r/20210114191423.423529-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Randy Dunlap
0fade2af3e firmware: imx: select SOC_BUS to fix firmware build
[ Upstream commit 82c082784e03a9a9c043345f9bc04bc8254cf6da ]

Fix build error in firmware/imx/ selecting SOC_BUS.

riscv32-linux-ld: drivers/firmware/imx/imx-scu-soc.o: in function `.L9':
imx-scu-soc.c:(.text+0x1b0): undefined reference to `soc_device_register'

Fixes: edbee095fa ("firmware: imx: add SCU firmware driver support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Palmer Dabbelt <palmerdabbelt@google.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Anson Huang <Anson.Huang@nxp.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:46 +01:00
Jacky Bai
bd10eba713 arm64: dts: imx8mp: Correct the gpio ranges of gpio3
[ Upstream commit b764eb65e1c932f0500b30fcc06417cd9bc3e583 ]

On i.MX8MP, The GPIO3's secondary gpio-ranges's 'gpio controller offset'
cell value should be 26, so correct it.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Fixes: 6d9b8d2043 ("arm64: dts: freescale: Add i.MX8MP dtsi support")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Russell King
50c701d94f ARM: dts: imx6qdl-sr-som: fix some cubox-i platforms
[ Upstream commit 2cc0bfc9c12784188482a8f3d751d44af45b0d97 ]

The PHY address bit 2 is configured by the LED pin. Attaching a LED
to this pin is not sufficient to guarantee this configuration pin is
correctly read. This leads to some platforms having their PHY at
address 0 and others at address 4.

If there is no phy-handle specified, the FEC driver will scan the PHY
bus for a PHY and use that. Consequently, adding the DT configuration
of the PHY and the phy properties to the FEC driver broke some boards.

Fix this by removing the phy-handle property, and listing two PHY
entries for both possible PHY addresses, so that the DT configuration
for the PHY can be found by the PHY driver.

Fixes: 86b08bd5b9 ("ARM: dts: imx6-sr-som: add ethernet PHY configuration")
Reported-by: Christoph Mattheis <christoph.mattheis@arcor.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Marco Felsch
fd59c86ac9 ARM: dts: imx6qdl-kontron-samx6i: fix i2c_lcd/cam default status
[ Upstream commit 70b6ff4c549a62b59b286445f66cfec6c5327ac8 ]

Fix typo so the gpio i2c busses are really disabled.

Fixes: 2125212785 ("ARM: dts: imx6qdl-kontron-samx6i: add Kontron SMARC SoM Support")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Arnd Bergmann
d871650a7d ARM: imx: fix imx8m dependencies
[ Upstream commit 097530bf8cd469ef7b3d52ef00cafb64b33bacb1 ]

Selecting ARM_GIC_V3 on non-CP15 processors leads to build failures
like

arch/arm/include/asm/arch_gicv3.h: In function 'write_ICC_AP1R3_EL1':
arch/arm/include/asm/arch_gicv3.h:36:40: error: 'c12' undeclared (first use in this function)
   36 | #define __ICC_AP1Rx(x)   __ACCESS_CP15(c12, 0, c9, x)
      |                                        ^~~

Add a dependency to only enable the gic driver when building for
at an ARMv7 target, which is the closes approximation to the ARMv8
processor that is actually in this chip.

Fixes: fc40200ebf ("soc: imx: increase build coverage for imx8m soc driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Michael Walle
9f87dd2fe3 arm64: dts: ls1028a: fix the offset of the reset register
[ Upstream commit 1653e3d470629d25c64cd8a2f84adb20a9348b0c ]

The offset of the reset request register is 0, the absolute address is
0x1e60000. Boards without PSCI support will fail to perform a reset:

[   26.734700] reboot: Restarting system
[   27.743259] Unable to restart system
[   27.746845] Reboot failed -- System halted

Fixes: 8897f3255c ("arm64: dts: Add support for NXP LS1028A SoC")
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Visa Hankala
6daa52884c xfrm: Fix wraparound in xfrm_policy_addr_delta()
[ Upstream commit da64ae2d35d3673233f0403b035d4c6acbf71965 ]

Use three-way comparison for address components to avoid integer
wraparound in the result of xfrm_policy_addr_delta(). This ensures
that the search trees are built and traversed correctly.

Treat IPv4 and IPv6 similarly by returning 0 when prefixlen == 0.
Prefix /0 has only one equivalence class.

Fixes: 9cf545ebd5 ("xfrm: policy: store inexact policies in a tree ordered by destination address")
Signed-off-by: Visa Hankala <visa@hankala.org>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Po-Hsu Lin
8ea899803b selftests: xfrm: fix test return value override issue in xfrm_policy.sh
[ Upstream commit f6e9ceb7a7fc321a31a9dde93a99b7b4b016a3b3 ]

When running this xfrm_policy.sh test script, even with some cases
marked as FAIL, the overall test result will still be PASS:

$ sudo ./xfrm_policy.sh
PASS: policy before exception matches
FAIL: expected ping to .254 to fail (exceptions)
PASS: direct policy matches (exceptions)
PASS: policy matches (exceptions)
FAIL: expected ping to .254 to fail (exceptions and block policies)
PASS: direct policy matches (exceptions and block policies)
PASS: policy matches (exceptions and block policies)
FAIL: expected ping to .254 to fail (exceptions and block policies after hresh changes)
PASS: direct policy matches (exceptions and block policies after hresh changes)
PASS: policy matches (exceptions and block policies after hresh changes)
FAIL: expected ping to .254 to fail (exceptions and block policies after hthresh change in ns3)
PASS: direct policy matches (exceptions and block policies after hthresh change in ns3)
PASS: policy matches (exceptions and block policies after hthresh change in ns3)
FAIL: expected ping to .254 to fail (exceptions and block policies after htresh change to normal)
PASS: direct policy matches (exceptions and block policies after htresh change to normal)
PASS: policy matches (exceptions and block policies after htresh change to normal)
PASS: policies with repeated htresh change
$ echo $?
0

This is because the $lret in check_xfrm() is not a local variable.
Therefore when a test failed in check_exceptions(), the non-zero $lret
will later get reset to 0 when the next test calls check_xfrm().

With this fix, the final return value will be 1. Make it easier for
testers to spot this failure.

Fixes: 39aa6928d4 ("xfrm: policy: fix netlink/pf_key policy lookups")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Eyal Birger
2f7ecc841d xfrm: fix disable_xfrm sysctl when used on xfrm interfaces
[ Upstream commit 9f8550e4bd9d78a8436c2061ad2530215f875376 ]

The disable_xfrm flag signals that xfrm should not be performed during
routing towards a device before reaching device xmit.

For xfrm interfaces this is usually desired as they perform the outbound
policy lookup as part of their xmit using their if_id.

Before this change enabling this flag on xfrm interfaces prevented them
from xmitting as xfrm_lookup_with_ifid() would not perform a policy lookup
in case the original dst had the DST_NOXFRM flag.

This optimization is incorrect when the lookup is done by the xfrm
interface xmit logic.

Fix by performing policy lookup when invoked by xfrmi as if_id != 0.

Similarly it's unlikely for the 'no policy exists on net' check to yield
any performance benefits when invoked from xfrmi.

Fixes: f203b76d78 ("xfrm: Add virtual xfrm interfaces")
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Shmulik Ladkani
f632d34091 xfrm: Fix oops in xfrm_replay_advance_bmp
[ Upstream commit 56ce7c25ae1525d83cf80a880cf506ead1914250 ]

When setting xfrm replay_window to values higher than 32, a rare
page-fault occurs in xfrm_replay_advance_bmp:

  BUG: unable to handle page fault for address: ffff8af350ad7920
  #PF: supervisor write access in kernel mode
  #PF: error_code(0x0002) - not-present page
  PGD ad001067 P4D ad001067 PUD 0
  Oops: 0002 [#1] SMP PTI
  CPU: 3 PID: 30 Comm: ksoftirqd/3 Kdump: loaded Not tainted 5.4.52-050452-generic #202007160732
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014
  RIP: 0010:xfrm_replay_advance_bmp+0xbb/0x130
  RSP: 0018:ffffa1304013ba40 EFLAGS: 00010206
  RAX: 000000000000010d RBX: 0000000000000002 RCX: 00000000ffffff4b
  RDX: 0000000000000018 RSI: 00000000004c234c RDI: 00000000ffb3dbff
  RBP: ffffa1304013ba50 R08: ffff8af330ad7920 R09: 0000000007fffffa
  R10: 0000000000000800 R11: 0000000000000010 R12: ffff8af29d6258c0
  R13: ffff8af28b95c700 R14: 0000000000000000 R15: ffff8af29d6258fc
  FS:  0000000000000000(0000) GS:ffff8af339ac0000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: ffff8af350ad7920 CR3: 0000000015ee4000 CR4: 00000000001406e0
  Call Trace:
   xfrm_input+0x4e5/0xa10
   xfrm4_rcv_encap+0xb5/0xe0
   xfrm4_udp_encap_rcv+0x140/0x1c0

Analysis revealed offending code is when accessing:

	replay_esn->bmp[nr] |= (1U << bitnr);

with 'nr' being 0x07fffffa.

This happened in an SMP system when reordering of packets was present;
A packet arrived with a "too old" sequence number (outside the window,
i.e 'diff > replay_window'), and therefore the following calculation:

			bitnr = replay_esn->replay_window - (diff - pos);

yields a negative result, but since bitnr is u32 we get a large unsigned
quantity (in crash dump above: 0xffffff4b seen in ecx).

This was supposed to be protected by xfrm_input()'s former call to:

		if (x->repl->check(x, skb, seq)) {

However, the state's spinlock x->lock is *released* after '->check()'
is performed, and gets re-acquired before '->advance()' - which gives a
chance for a different core to update the xfrm state, e.g. by advancing
'replay_esn->seq' when it encounters more packets - leading to a
'diff > replay_window' situation when original core continues to
xfrm_replay_advance_bmp().

An attempt to fix this issue was suggested in commit bcf66bf54a
("xfrm: Perform a replay check after return from async codepaths"),
by calling 'x->repl->recheck()' after lock is re-acquired, but fix
applied only to asyncronous crypto algorithms.

Augment the fix, by *always* calling 'recheck()' - irrespective if we're
using async crypto.

Fixes: 0ebea8ef35 ("[IPSEC]: Move state lock into x->type->input")
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03 23:28:45 +01:00
Maxim Mikityanskiy
f39005edf5 Revert "block: simplify set_init_blocksize" to regain lost performance
commit 8dc932d3e8afb65e12eba7495f046c83884c49bf upstream.

The cited commit introduced a serious regression with SATA write speed,
as found by bisecting. This patch reverts this commit, which restores
write speed back to the values observed before this commit.

The performance tests were done on a Helios4 NAS (2nd batch) with 4 HDDs
(WD8003FFBX) using dd (bs=1M count=2000). "Direct" is a test with a
single HDD, the rest are different RAID levels built over the first
partitions of 4 HDDs. Test results are in MB/s, R is read, W is write.

                | Direct | RAID0 | RAID10 f2 | RAID10 n2 | RAID6
----------------+--------+-------+-----------+-----------+--------
9011495c94    | R:256  | R:313 | R:276     | R:313     | R:323
(before faulty) | W:254  | W:253 | W:195     | W:204     | W:117
----------------+--------+-------+-----------+-----------+--------
5ff9f19231    | R:257  | R:398 | R:312     | R:344     | R:391
(faulty commit) | W:154  | W:122 | W:67.7    | W:66.6    | W:67.2
----------------+--------+-------+-----------+-----------+--------
5.10.10         | R:256  | R:401 | R:312     | R:356     | R:375
unpatched       | W:149  | W:123 | W:64      | W:64.1    | W:61.5
----------------+--------+-------+-----------+-----------+--------
5.10.10         | R:255  | R:396 | R:312     | R:340     | R:393
patched         | W:247  | W:274 | W:220     | W:225     | W:121

Applying this patch doesn't hurt read performance, while improves the
write speed by 1.5x - 3.5x (more impact on RAID tests). The write speed
is restored back to the state before the faulty commit, and even a bit
higher in RAID tests (which aren't HDD-bound on this device) - that is
likely related to other optimizations done between the faulty commit and
5.10.10 which also improved the read speed.

Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Fixes: 5ff9f19231 ("block: simplify set_init_blocksize")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:45 +01:00
Parav Pandit
34b0c04c88 Revert "RDMA/mlx5: Fix devlink deadlock on net namespace deletion"
commit de641d74fb00f5b32f054ee154e31fb037e0db88 upstream.

This reverts commit fbdd0049d9.

Due to commit in fixes tag, netdevice events were received only in one net
namespace of mlx5_core_dev. Due to this when netdevice events arrive in
net namespace other than net namespace of mlx5_core_dev, they are missed.

This results in empty GID table due to RDMA device being detached from its
net device.

Hence, revert back to receive netdevice events in all net namespaces to
restore back RDMA functionality in non init_net net namespace. The
deadlock will have to be addressed in another patch.

Fixes: fbdd0049d9 ("RDMA/mlx5: Fix devlink deadlock on net namespace deletion")
Link: https://lore.kernel.org/r/20210117092633.10690-1-leon@kernel.org
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Pablo Neira Ayuso
28adabf8cd netfilter: nft_dynset: add timeout extension to template
commit 0c5b7a501e7400869ee905b4f7af3d6717802bcb upstream.

Otherwise, the newly create element shows no timeout when listing the
ruleset. If the set definition does not specify a default timeout, then
the set element only shows the expiration time, but not the timeout.
This is a problem when restoring a stateful ruleset listing since it
skips the timeout policy entirely.

Fixes: 22fe54d5fe ("netfilter: nf_tables: add support for dynamic set updates")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Rob Herring
fec7ae28d9 ARM: zImage: atags_to_fdt: Fix node names on added root nodes
commit 30596ae0547dbda469d31a2678d9072fb0a3fa27 upstream.

Commit 7536c7e03e ("of/fdt: Remove redundant kbasename function
call") exposed a bug creating DT nodes in the ATAGS to DT fixup code.
Non-existent nodes would mistaken get created with a leading '/'. The
problem was fdt_path_offset() takes a full path while creating a node
with fdt_add_subnode() takes just the basename.

Since this we only add root child nodes, we can just skip over the '/'.

Fixes: 7536c7e03e ("of/fdt: Remove redundant kbasename function call")
Reported-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: Qi Zheng <arch0.zheng@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20210126023905.1631161-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Max Krummenacher
69da790360 ARM: imx: build suspend-imx6.S with arm instruction set
commit a88afa46b86ff461c89cc33fc3a45267fff053e8 upstream.

When the kernel is configured to use the Thumb-2 instruction set
"suspend-to-memory" fails to resume. Observed on a Colibri iMX6ULL
(i.MX 6ULL) and Apalis iMX6 (i.MX 6Q).

It looks like the CPU resumes unconditionally in ARM instruction mode
and then chokes on the presented Thumb-2 code it should execute.

Fix this by using the arm instruction set for all code in
suspend-imx6.S.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Fixes: df595746fa ("ARM: imx: add suspend in ocram support for i.mx6q")
Acked-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Dmitry Baryshkov
d095985e1c clk: qcom: gcc-sm250: Use floor ops for sdcc clks
commit fd2383093593b23f8814a879093b746e502fe3cf upstream.

Followup to the commits 5e4b7e82d4 ("clk: qcom: gcc-sdm845: Use floor
ops for sdcc clks") and 6d37a8d19283 ("clk: qcom: gcc-sc7180: Use floor ops
for sdcc clks"). Use floor ops for sdcc clocks on sm8250.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: 3e5770921a ("clk: qcom: gcc: Add global clock controller driver for SM8250")
Link: https://lore.kernel.org/r/20210109013314.3443134-1-dmitry.baryshkov@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Arnd Bergmann
cee27fcc8c clk: mmp2: fix build without CONFIG_PM
commit c361c5a6c559d1e0a2717abe9162a71aa602954f upstream.

pm_clk_suspend()/pm_clk_resume() are defined as NULL pointers rather than
empty inline stubs without CONFIG_PM:

drivers/clk/mmp/clk-audio.c:402:16: error: called object type 'void *' is not a function or function pointer
        pm_clk_suspend(dev);
drivers/clk/mmp/clk-audio.c:411:15: error: called object type 'void *' is not a function or function pointer
        pm_clk_resume(dev);

I tried redefining the helper functions, but that caused additional
problems. This is the simple solution of replacing the __maybe_unused
trick with an #ifdef.

Fixes: 725262d291 ("clk: mmp2: Add audio clock controller driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210103135503.3668784-1-arnd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Arnd Bergmann
c143ab5556 clk: imx: fix Kconfig warning for i.MX SCU clk
commit 73f6b7ed9835ad9f953aebd60dd720aabc487b81 upstream.

A previous patch introduced a harmless randconfig warning:

WARNING: unmet direct dependencies detected for MXC_CLK_SCU
  Depends on [n]: COMMON_CLK [=y] && ARCH_MXC [=n] && IMX_SCU [=y] && HAVE_ARM_SMCCC [=y]
  Selected by [m]:
  - CLK_IMX8QXP [=m] && COMMON_CLK [=y] && (ARCH_MXC [=n] && ARM64 [=y] || COMPILE_TEST [=y]) && IMX_SCU [=y] && HAVE_ARM_SMCCC [=y]

Since the symbol is now hidden and only selected by other symbols,
just remove the dependencies and require the other drivers to
get it right.

Fixes: 6247e31b75 ("clk: imx: scu: fix MXC_CLK_SCU module build break")
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201230155244.981757-1-arnd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Ming Lei
20786fdd2f blk-mq: test QUEUE_FLAG_HCTX_ACTIVE for sbitmap_shared in hctx_may_queue
commit 2569063c7140c65a0d0ad075e95ddfbcda9ba3c0 upstream.

In case of blk_mq_is_sbitmap_shared(), we should test QUEUE_FLAG_HCTX_ACTIVE against
q->queue_flags instead of BLK_MQ_S_TAG_ACTIVE.

So fix it.

Cc: John Garry <john.garry@huawei.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Fixes: f1b49fdc1c ("blk-mq: Record active_queues_shared_sbitmap per tag_set for when using shared sbitmap")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Roger Pau Monne
7d6e01e275 xen-blkfront: allow discard-* nodes to be optional
commit 0549cd67b01016b579047bce045b386202a8bcfc upstream.

This is inline with the specification described in blkif.h:

 * discard-granularity: should be set to the physical block size if
   node is not present.
 * discard-alignment, discard-secure: should be set to 0 if node not
   present.

This was detected as QEMU would only create the discard-granularity
node but not discard-alignment, and thus the setup done in
blkfront_setup_discard would fail.

Fix blkfront_setup_discard to not fail on missing nodes, and also fix
blkif_set_queue_limits to set the discard granularity to the physical
block size if none is specified in xenbus.

Fixes: ed30bf317c ('xen-blkfront: Handle discard requests.')
Reported-by: Arthur Borsboom <arthurborsboom@gmail.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Tested-By: Arthur Borsboom <arthurborsboom@gmail.com>
Link: https://lore.kernel.org/r/20210119105727.95173-1-roger.pau@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:44 +01:00
Rouven Czerwinski
a164789b86 tee: optee: replace might_sleep with cond_resched
commit dcb3b06d9c34f33a249f65c08805461fb0c4325b upstream.

might_sleep() is a debugging aid and triggers rescheduling only for
certain kernel configurations. Replace with an explicit check and
reschedule to work for all kernel configurations. Fixes the following
trace:

  [  572.945146] rcu: INFO: rcu_sched self-detected stall on CPU
  [  572.949275] rcu:     0-....: (2099 ticks this GP) idle=572/1/0x40000002 softirq=7412/7412 fqs=974
  [  572.957964]  (t=2100 jiffies g=10393 q=21)
  [  572.962054] NMI backtrace for cpu 0
  [  572.965540] CPU: 0 PID: 165 Comm: xtest Not tainted 5.8.7 #1
  [  572.971188] Hardware name: STM32 (Device Tree Support)
  [  572.976354] [<c011163c>] (unwind_backtrace) from [<c010b7f8>] (show_stack+0x10/0x14)
  [  572.984080] [<c010b7f8>] (show_stack) from [<c0511e4c>] (dump_stack+0xc4/0xd8)
  [  572.991300] [<c0511e4c>] (dump_stack) from [<c0519abc>] (nmi_cpu_backtrace+0x90/0xc4)
  [  572.999130] [<c0519abc>] (nmi_cpu_backtrace) from [<c0519bdc>] (nmi_trigger_cpumask_backtrace+0xec/0x130)
  [  573.008706] [<c0519bdc>] (nmi_trigger_cpumask_backtrace) from [<c01a5184>] (rcu_dump_cpu_stacks+0xe8/0x110)
  [  573.018453] [<c01a5184>] (rcu_dump_cpu_stacks) from [<c01a4234>] (rcu_sched_clock_irq+0x7fc/0xa88)
  [  573.027416] [<c01a4234>] (rcu_sched_clock_irq) from [<c01acdd0>] (update_process_times+0x30/0x8c)
  [  573.036291] [<c01acdd0>] (update_process_times) from [<c01bfb90>] (tick_sched_timer+0x4c/0xa8)
  [  573.044905] [<c01bfb90>] (tick_sched_timer) from [<c01adcc8>] (__hrtimer_run_queues+0x174/0x358)
  [  573.053696] [<c01adcc8>] (__hrtimer_run_queues) from [<c01aea2c>] (hrtimer_interrupt+0x118/0x2bc)
  [  573.062573] [<c01aea2c>] (hrtimer_interrupt) from [<c09ad664>] (arch_timer_handler_virt+0x28/0x30)
  [  573.071536] [<c09ad664>] (arch_timer_handler_virt) from [<c0190f50>] (handle_percpu_devid_irq+0x8c/0x240)
  [  573.081109] [<c0190f50>] (handle_percpu_devid_irq) from [<c018ab8c>] (generic_handle_irq+0x34/0x44)
  [  573.090156] [<c018ab8c>] (generic_handle_irq) from [<c018b194>] (__handle_domain_irq+0x5c/0xb0)
  [  573.098857] [<c018b194>] (__handle_domain_irq) from [<c052ac50>] (gic_handle_irq+0x4c/0x90)
  [  573.107209] [<c052ac50>] (gic_handle_irq) from [<c0100b0c>] (__irq_svc+0x6c/0x90)
  [  573.114682] Exception stack(0xd90dfcf8 to 0xd90dfd40)
  [  573.119732] fce0:                                                       ffff0004 00000000
  [  573.127917] fd00: 00000000 00000000 00000000 00000000 00000000 00000000 d93493cc ffff0000
  [  573.136098] fd20: d2bc39c0 be926998 d90dfd58 d90dfd48 c09f3384 c01151f0 400d0013 ffffffff
  [  573.144281] [<c0100b0c>] (__irq_svc) from [<c01151f0>] (__arm_smccc_smc+0x10/0x20)
  [  573.151854] [<c01151f0>] (__arm_smccc_smc) from [<c09f3384>] (optee_smccc_smc+0x3c/0x44)
  [  573.159948] [<c09f3384>] (optee_smccc_smc) from [<c09f4170>] (optee_do_call_with_arg+0xb8/0x154)
  [  573.168735] [<c09f4170>] (optee_do_call_with_arg) from [<c09f4638>] (optee_invoke_func+0x110/0x190)
  [  573.177786] [<c09f4638>] (optee_invoke_func) from [<c09f1ebc>] (tee_ioctl+0x10b8/0x11c0)
  [  573.185879] [<c09f1ebc>] (tee_ioctl) from [<c029f62c>] (ksys_ioctl+0xe0/0xa4c)
  [  573.193101] [<c029f62c>] (ksys_ioctl) from [<c0100060>] (ret_fast_syscall+0x0/0x54)
  [  573.200750] Exception stack(0xd90dffa8 to 0xd90dfff0)
  [  573.205803] ffa0:                   be926bf4 be926a78 00000003 8010a403 be926908 004e3cf8
  [  573.213987] ffc0: be926bf4 be926a78 00000000 00000036 be926908 be926918 be9269b0 bffdf0f8
  [  573.222162] ffe0: b6d76fb0 be9268fc b6d66621 b6c7e0d8

seen on STM32 DK2 with CONFIG_PREEMPT_NONE.

Fixes: 9f02b8f61f ("tee: optee: add might_sleep for RPC requests")
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
[jw: added fixes tag + small adjustments in the code]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Quentin Perret
d1fd90bf55 KVM: Documentation: Fix spec for KVM_CAP_ENABLE_CAP_VM
commit a10f373ad3c760dd40b41e2f69a800ee7b8da15e upstream.

The documentation classifies KVM_ENABLE_CAP with KVM_CAP_ENABLE_CAP_VM
as a vcpu ioctl, which is incorrect. Fix it by specifying it as a VM
ioctl.

Fixes: e5d83c74a5 ("kvm: make KVM_CAP_ENABLE_CAP_VM architecture agnostic")
Signed-off-by: Quentin Perret <qperret@google.com>
Message-Id: <20210108165349.747359-1-qperret@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Justin Iurman
c48f69093e uapi: fix big endian definition of ipv6_rpl_sr_hdr
commit 07d46d93c9acdfe0614071d73c415dd5f745cc6e upstream.

Following RFC 6554 [1], the current order of fields is wrong for big
endian definition. Indeed, here is how the header looks like:

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|  Next Header  |  Hdr Ext Len  | Routing Type  | Segments Left |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| CmprI | CmprE |  Pad  |               Reserved                |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

This patch reorders fields so that big endian definition is now correct.

  [1] https://tools.ietf.org/html/rfc6554#section-3

Fixes: cfa933d938 ("include: uapi: linux: add rpl sr header definition")
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Pan Bian
921f48afdd drm/i915/selftest: Fix potential memory leak
commit 3d480fe1befa0ef434f5c25199e7d45c26870555 upstream.

Object out is not released on path that no VMA instance found. The root
cause is jumping to an unexpected label on the error path.

Fixes: a47e788c23 ("drm/i915/selftests: Exercise CS TLB invalidation")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210122015640.16002-1-bianpan2016@163.com
(cherry picked from commit 2b015017d5cb01477a79ca184ac25c247d664568)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Umesh Nerlige Ramappa
7306177c9e drm/i915: Check for all subplatform bits
commit 8f6d08c9af284d74276da6681348e4673f13caea upstream.

Current code is checking only 2 bits in the subplatform, but actually 3
bits are allocated for the field. Check all 3 bits.

Fixes: 805446c834 ("drm/i915: Introduce concept of a sub-platform")
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121161936.746591-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit 27b695ee1af9bb36605e67055874ec081306ac28)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Bastian Beranek
e4d2a196fd drm/nouveau/dispnv50: Restore pushing of all data.
commit fd55b61ebd31449549e14c33574825d64de2b29b upstream.

Commit f844eb485e introduced a regression for
NV50, which lead to visual artifacts, tearing and eventual crashes.

In the changes of f844eb485e only the first line
was correctly translated to the new NVIDIA header macros:

-		PUSH_NVSQ(push, NV827C, 0x0110, 0,
-					0x0114, 0);
+		PUSH_MTHD(push, NV827C, SET_PROCESSING,
+			  NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE));

The lower part ("0x0114, 0") was probably omitted by accident.

This patch restores the push of the missing data and fixes the regression.

Signed-off-by: Bastian Beranek <bastian.beischer@rwth-aachen.de>
Fixes: f844eb485e ("drm/nouveau/kms/nv50-: use NVIDIA's headers for wndw image_set()")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/14
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Dom Cobley
e50b0cb7da drm/vc4: Correct POS1_SCL for hvs5
commit f6b57101a6b31277a4bde1d8028c46e898bd2ff2 upstream.

Fixes failure with 4096x1080 resolutions

[  284.315379] WARNING: CPU: 1 PID: 901 at drivers/gpu/drm/vc4/vc4_plane.c:981 vc4_plane_mode_set+0x1374/0x13c4
[  284.315385] Modules linked in: ir_rc5_decoder rpivid_hevc(C) bcm2835_codec(C) bcm2835_isp(C) bcm2835_mmal_vchiq(C) bcm2835_gpiomem v4l2_mem2mem videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc cdc_acm xpad ir_rc6_decoder rc_rc6_mce gpio_ir_recv fuse
[  284.315509] CPU: 1 PID: 901 Comm: kodi.bin Tainted: G         C        5.10.7 #1
[  284.315514] Hardware name: BCM2711
[  284.315518] Backtrace:
[  284.315533] [<c0cc5ca0>] (dump_backtrace) from [<c0cc6014>] (show_stack+0x20/0x24)
[  284.315540]  r7:ffffffff r6:00000000 r5:68000013 r4:c18ecf1c
[  284.315549] [<c0cc5ff4>] (show_stack) from [<c0cca638>] (dump_stack+0xc4/0xf0)
[  284.315558] [<c0cca574>] (dump_stack) from [<c022314c>] (__warn+0xfc/0x158)
[  284.315564]  r9:00000000 r8:00000009 r7:000003d5 r6:00000009 r5:c08cc7dc r4:c0fd09b8
[  284.315572] [<c0223050>] (__warn) from [<c0cc67ec>] (warn_slowpath_fmt+0x74/0xe4)
[  284.315577]  r7:c08cc7dc r6:000003d5 r5:c0fd09b8 r4:00000000
[  284.315584] [<c0cc677c>] (warn_slowpath_fmt) from [<c08cc7dc>] (vc4_plane_mode_set+0x1374/0x13c4)
[  284.315589]  r8:00000000 r7:00000000 r6:00001000 r5:c404c600 r4:c2e34600
[  284.315596] [<c08cb468>] (vc4_plane_mode_set) from [<c08cc984>] (vc4_plane_atomic_check+0x40/0x1c0)
[  284.315601]  r10:00000001 r9:c2e34600 r8:c0e67068 r7:c0fc44e0 r6:c2ce3640 r5:c3d636c0
[  284.315605]  r4:c2e34600
[  284.315614] [<c08cc944>] (vc4_plane_atomic_check) from [<c0860504>] (drm_atomic_helper_check_planes+0xec/0x1ec)
[  284.315620]  r9:c2e34600 r8:c0e67068 r7:c0fc44e0 r6:c2ce3640 r5:c3d636c0 r4:00000006
[  284.315627] [<c0860418>] (drm_atomic_helper_check_planes) from [<c0860658>] (drm_atomic_helper_check+0x54/0x9c)
[  284.315633]  r9:c2e35400 r8:00000006 r7:00000000 r6:c2ba7800 r5:c3d636c0 r4:00000000
[  284.315641] [<c0860604>] (drm_atomic_helper_check) from [<c08b7ca8>] (vc4_atomic_check+0x25c/0x454)
[  284.315645]  r7:00000000 r6:c2ba7800 r5:00000001 r4:c3d636c0
[  284.315652] [<c08b7a4c>] (vc4_atomic_check) from [<c0881278>] (drm_atomic_check_only+0x5cc/0x7e0)
[  284.315658]  r10:c404c6c8 r9:ffffffff r8:c472c480 r7:00000003 r6:c3d636c0 r5:00000000
[  284.315662]  r4:0000003c r3:c08b7a4c
[  284.315670] [<c0880cac>] (drm_atomic_check_only) from [<c089ba60>] (drm_mode_atomic_ioctl+0x758/0xa7c)
[  284.315675]  r10:c3d46000 r9:c3d636c0 r8:c2ce8a70 r7:027e3a54 r6:00000043 r5:c1fbb800
[  284.315679]  r4:0281a858
[  284.315688] [<c089b308>] (drm_mode_atomic_ioctl) from [<c086e9f8>] (drm_ioctl_kernel+0xc4/0x108)
[  284.315693]  r10:c03864bc r9:c1fbb800 r8:c3d47e64 r7:c089b308 r6:00000002 r5:c2ba7800
[  284.315697]  r4:00000000
[  284.315705] [<c086e934>] (drm_ioctl_kernel) from [<c086ee28>] (drm_ioctl+0x1e8/0x3a0)
[  284.315711]  r9:c1fbb800 r8:000000bc r7:c3d47e64 r6:00000038 r5:c0e59570 r4:00000038
[  284.315719] [<c086ec40>] (drm_ioctl) from [<c041f354>] (sys_ioctl+0x35c/0x914)
[  284.315724]  r10:c2d08200 r9:00000000 r8:c36fa300 r7:befdd870 r6:c03864bc r5:c36fa301
[  284.315728]  r4:c03864bc
[  284.315735] [<c041eff8>] (sys_ioctl) from [<c0200040>] (ret_fast_syscall+0x0/0x28)
[  284.315739] Exception stack(0xc3d47fa8 to 0xc3d47ff0)
[  284.315745] 7fa0:                   027eb750 befdd870 00000000 c03864bc befdd870 00000000
[  284.315750] 7fc0: 027eb750 befdd870 c03864bc 00000036 027e3948 0281a640 0281a850 027e3a50
[  284.315756] 7fe0: b4b64100 befdd844 b4b5ba2c b49c994c
[  284.315762]  r10:00000036 r9:c3d46000 r8:c0200204 r7:00000036 r6:c03864bc r5:befdd870
[  284.315765]  r4:027eb750

Fixes: c54619b0bf ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Tested-By: Lucas Nussbaum <lucas@debian.org>
Tested-By: Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121105759.1262699-2-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Dom Cobley
21e3ad8054 drm/vc4: Correct lbm size and calculation
commit 78e5330329ee206d6aa4593a90320fd837f7966e upstream.

LBM base address is measured in units of pixels per cycle.
That is 4 for 2711 (hvs5) and 2 for 2708.

We are wasting 75% of lbm by indexing without the scaling.
But we were also using too high a size for the lbm resulting
in partial corruption (right hand side) of vertically
scaled images, usually at 4K or lower resolutions with more layers.

The physical RAM of LBM on 2711 is 8 * 1920 * 16 * 12-bit
(pixels are stored 12-bits per component regardless of format).

The LBM address indexes work in units of pixels per clock,
so for 4 pixels per clock that means we have 32 * 1920 = 60K

Fixes: c54619b0bf ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Tested-By: Lucas Nussbaum <lucas@debian.org>
Tested-By: Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121105759.1262699-1-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Karol Herbst
112821f254 drm/nouveau/svm: fail NOUVEAU_SVM_INIT ioctl on unsupported devices
commit dcd602cc5fe2803bf532d407cde24ba0b7808ff3 upstream.

Fixes a crash when trying to create a channel on e.g. Turing GPUs when
NOUVEAU_SVM_INIT was called before.

Fixes: eeaf06ac1a ("drm/nouveau/svm: initial support for shared virtual memory")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:43 +01:00
Marco Felsch
1310c7a482 ARM: dts: imx6qdl-kontron-samx6i: fix pwms for lcd-backlight
commit 6337c2353a069b6f1276dc35421e421ef6c1ead9 upstream.

The pwms property have to specify the no-/inverted flag since
commit fa28d8212e ("ARM: dts: imx: default to #pwm-cells = <3>
in the SoC dtsi files").

Fixes: fa28d8212e ("ARM: dts: imx: default to #pwm-cells = <3> in the SoC dtsi files")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Maxim Mikityanskiy
99bb37ab28 net/mlx5e: Fix IPSEC stats
commit 45c9a30835d84009dfe711f5c8836720767c286e upstream.

When IPSEC offload isn't active, the number of stats is not zero, but
the strings are not filled, leading to exposing stats with empty names.
Fix this by using the same condition for NUM_STATS and FILL_STRS.

Fixes: 0aab3e1b04 ("net/mlx5e: IPSec, Expose IPsec HW stat only for supporting HW")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Tvrtko Ursulin
37ef64511f drm/i915/pmu: Don't grab wakeref when enabling events
commit 171a8e99828144050015672016dd63494c6d200a upstream.

Chris found a CI report which points out calling intel_runtime_pm_get from
inside i915_pmu_enable hook is not allowed since it can be invoked from
hard irq context. This is something we knew but forgot, so lets fix it
once again.

We do this by syncing the internal book keeping with hardware rc6 counter
on driver load.

v2:
 * Always sync on parking and fully sync on init.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: f4e9894b69 ("drm/i915/pmu: Correct the rc6 offset upon enabling")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201214094349.3563876-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit dbe13ae1d6abaab417edf3c37601c6a56594a4cd)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210118100724.465555-1-chris@chris-wilson.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Chris Wilson
520d05a77b drm/i915/gt: Clear CACHE_MODE prior to clearing residuals
commit ef99a60ffd9b918354e038bc5e61f007ff7e901d upstream.

Since we do a bare context switch with no restore, the clear residual
kernel runs on dirty state, and we must be careful to avoid executing
with bad state from context registers inherited from a malicious client.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2955
Fixes: 09aa9e45863e ("drm/i915/gt: Restore clear-residual mitigations for Ivybridge, Baytrail")
Testcase: igt/gem_ctx_isolation # ivb,vlv
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Reviewed-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210117093015.29143-1-chris@chris-wilson.co.uk
(cherry picked from commit ace44e13e577c2ae59980e9a6ff5ca253b1cf831)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Matti Gottlieb
800ca7687c iwlwifi: Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit.
commit 4886460c4d1576e85b12601b8b328278a483df86 upstream.

The bit that indicates if the device supports 160MHZ
is bit #9. The macro checks bit #8.

Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Fixes: d6f2134a38 ("iwlwifi: add mac/rf types and 160MHz to the device tables")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.bddbf9b57a75.I16e09e2b1404b16bfff70852a5a654aa468579e2@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Lorenzo Bianconi
621f05288c mt7601u: fix rx buffer refcounting
commit d24c790577ef01bfa01da2b131313a38c843a634 upstream.

Fix the following crash due to erroneous page refcounting:

[   32.445919] BUG: Bad page state in process swapper/1  pfn:11f65a
[   32.447409] page:00000000938f0632 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0 pfn:0x11f65a
[   32.449605] flags: 0x8000000000000000()
[   32.450421] raw: 8000000000000000 ffffffff825b0148 ffffea00045ae988 0000000000000000
[   32.451795] raw: 0000000000000000 0000000000000001 00000000ffffff7f 0000000000000000
[   32.452999] page dumped because: nonzero mapcount
[   32.453888] Modules linked in:
[   32.454492] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc2+ #1976
[   32.455695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-1.fc33 04/01/2014
[   32.457157] Call Trace:
[   32.457636]  <IRQ>
[   32.457993]  dump_stack+0x77/0x97
[   32.458576]  bad_page.cold+0x65/0x96
[   32.459198]  get_page_from_freelist+0x46a/0x11f0
[   32.460008]  __alloc_pages_nodemask+0x10a/0x2b0
[   32.460794]  mt7601u_rx_tasklet+0x651/0x720
[   32.461505]  tasklet_action_common.constprop.0+0x6b/0xd0
[   32.462343]  __do_softirq+0x152/0x46c
[   32.462928]  asm_call_irq_on_stack+0x12/0x20
[   32.463610]  </IRQ>
[   32.463953]  do_softirq_own_stack+0x5b/0x70
[   32.464582]  irq_exit_rcu+0x9f/0xe0
[   32.465028]  common_interrupt+0xae/0x1a0
[   32.465536]  asm_common_interrupt+0x1e/0x40
[   32.466071] RIP: 0010:default_idle+0x18/0x20
[   32.468981] RSP: 0018:ffffc90000077f00 EFLAGS: 00000246
[   32.469648] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
[   32.470550] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81aac3dd
[   32.471463] RBP: ffff88810022ab00 R08: 0000000000000001 R09: 0000000000000001
[   32.472335] R10: 0000000000000046 R11: 0000000000005aa0 R12: 0000000000000000
[   32.473235] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   32.474139]  ? default_idle_call+0x4d/0x200
[   32.474681]  default_idle_call+0x74/0x200
[   32.475192]  do_idle+0x1d5/0x250
[   32.475612]  cpu_startup_entry+0x19/0x20
[   32.476114]  secondary_startup_64_no_verify+0xb0/0xbb
[   32.476765] Disabling lock debugging due to kernel taint

Fixes: c869f77d6a ("add mt7601u driver")
Co-developed-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/62b2380c8c2091834cfad05e1059b55f945bd114.1610643952.git.lorenzo@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Lorenzo Bianconi
cfe3425c5a mt76: mt7663s: fix rx buffer refcounting
commit 952de419b6179ad1424f512d52ec7122662fdf63 upstream.

Similar to mt7601u driver, fix erroneous rx page refcounting

Fixes: a66cbdd657 ("mt76: mt7615: introduce mt7663s support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/dca19c9d445156201bc41f7cbb6e894bbc9a678c.1610644945.git.lorenzo@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00
Lorenzo Bianconi
083274407a mt7601u: fix kernel crash unplugging the device
commit 0acb20a5438c36e0cf2b8bf255f314b59fcca6ef upstream.

The following crash log can occur unplugging the usb dongle since,
after the urb poison in mt7601u_free_tx_queue(), usb_submit_urb() will
always fail resulting in a skb kfree while the skb has been already
queued.

Fix the issue enqueuing the skb only if usb_submit_urb() succeed.

Hardware name: Hewlett-Packard 500-539ng/2B2C, BIOS 80.06 04/01/2015
Workqueue: usb_hub_wq hub_event
RIP: 0010:skb_trim+0x2c/0x30
RSP: 0000:ffffb4c88005bba8 EFLAGS: 00010206
RAX: 000000004ad483ee RBX: ffff9a236625dee0 RCX: 000000000000662f
RDX: 000000000000000c RSI: 0000000000000000 RDI: ffff9a2343179300
RBP: ffff9a2343179300 R08: 0000000000000001 R09: 0000000000000000
R10: ffff9a23748f7840 R11: 0000000000000001 R12: ffff9a236625e4d4
R13: ffff9a236625dee0 R14: 0000000000001080 R15: 0000000000000008
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd410a34ef8 CR3: 00000001416ee001 CR4: 00000000001706f0
Call Trace:
 mt7601u_tx_status+0x3e/0xa0 [mt7601u]
 mt7601u_dma_cleanup+0xca/0x110 [mt7601u]
 mt7601u_cleanup+0x22/0x30 [mt7601u]
 mt7601u_disconnect+0x22/0x60 [mt7601u]
 usb_unbind_interface+0x8a/0x270
 ? kernfs_find_ns+0x35/0xd0
 __device_release_driver+0x17a/0x230
 device_release_driver+0x24/0x30
 bus_remove_device+0xdb/0x140
 device_del+0x18b/0x430
 ? kobject_put+0x98/0x1d0
 usb_disable_device+0xc6/0x1f0
 usb_disconnect.cold+0x7e/0x20a
 hub_event+0xbf3/0x1870
 process_one_work+0x1b6/0x350
 worker_thread+0x53/0x3e0
 ? process_one_work+0x350/0x350
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30

Fixes: 23377c200b ("mt7601u: fix possible memory leak when the device is disconnected")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/3b85219f669a63a8ced1f43686de05915a580489.1610919247.git.lorenzo@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03 23:28:42 +01:00