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933706 Commits (55c7549819e438f40a3ef1d8ac5c38b73390bcb7)

Author SHA1 Message Date
Matthias Maennich 55c7549819 scripts: add dummy report mode to add_namespace.cocci
When running `make coccicheck` in report mode using the
add_namespace.cocci file, it will fail for files that contain
MODULE_LICENSE. Those match the replacement precondition, but spatch
errors out as virtual.ns is not set.

In order to fix that, add the virtual rule nsdeps and only do search and
replace if that rule has been explicitly requested.

In order to make spatch happy in report mode, we also need a dummy rule,
as otherwise it errors out with "No rules apply". Using a script:python
rule appears unrelated and odd, but this is the shortest I could come up
with.

Adjust scripts/nsdeps accordingly to set the nsdeps rule when run trough
`make nsdeps`.

Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Fixes: c7c4e29fb5 ("scripts: add_namespace: Fix coccicheck failed")
Cc: YueHaibing <yuehaibing@huawei.com>
Cc: jeyu@kernel.org
Cc: cocci@systeme.lip6.fr
Cc: stable@vger.kernel.org
Signed-off-by: Matthias Maennich <maennich@google.com>
Reported-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Julia Lawall <julia.lawall@inria.fr>
Link: https://lore.kernel.org/r/20200604164145.173925-1-maennich@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:19:58 +02:00
Matthias Brugger 5962b8b271 drivers: base: Convert to printk alias functions
The file mixes printk calls together with calls to pr_*().
Covert to printk alias functions to unify the code.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Link: https://lore.kernel.org/r/20200608095217.21162-2-matthias.bgg@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:16:44 +02:00
Dan Carpenter 7ae731a844 lib: devres: add a comment about the devm_of_iomap() function
We recently introduced a bug when we tried to convert of_iomap() to
devm_of_iomap().  The problem was that there were two drivers mapping
the same io region.  The first driver was using of_iomap() and the
second driver was using devm_of_iomap() and the kernel booted fine.
When we converted the first drive to use devm_of_iomap() then the second
driver failed with -EBUSY and the kernel couldn't boot.

Let's add a comment to prevent this sort of mistake in the future.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200609104642.GA43074@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:15:55 +02:00
Vladimir Oltean 35bd8c07db devres: keep both device name and resource name in pretty name
Sometimes debugging a device is easiest using devmem on its register
map, and that can be seen with /proc/iomem. But some device drivers have
many memory regions. Take for example a networking switch. Its memory
map used to look like this in /proc/iomem:

1fc000000-1fc3fffff : pcie@1f0000000
  1fc000000-1fc3fffff : 0000:00:00.5
    1fc010000-1fc01ffff : sys
    1fc030000-1fc03ffff : rew
    1fc060000-1fc0603ff : s2
    1fc070000-1fc0701ff : devcpu_gcb
    1fc080000-1fc0800ff : qs
    1fc090000-1fc0900cb : ptp
    1fc100000-1fc10ffff : port0
    1fc110000-1fc11ffff : port1
    1fc120000-1fc12ffff : port2
    1fc130000-1fc13ffff : port3
    1fc140000-1fc14ffff : port4
    1fc150000-1fc15ffff : port5
    1fc200000-1fc21ffff : qsys
    1fc280000-1fc28ffff : ana

But after the patch in Fixes: was applied, the information is now
presented in a much more opaque way:

1fc000000-1fc3fffff : pcie@1f0000000
  1fc000000-1fc3fffff : 0000:00:00.5
    1fc010000-1fc01ffff : 0000:00:00.5
    1fc030000-1fc03ffff : 0000:00:00.5
    1fc060000-1fc0603ff : 0000:00:00.5
    1fc070000-1fc0701ff : 0000:00:00.5
    1fc080000-1fc0800ff : 0000:00:00.5
    1fc090000-1fc0900cb : 0000:00:00.5
    1fc100000-1fc10ffff : 0000:00:00.5
    1fc110000-1fc11ffff : 0000:00:00.5
    1fc120000-1fc12ffff : 0000:00:00.5
    1fc130000-1fc13ffff : 0000:00:00.5
    1fc140000-1fc14ffff : 0000:00:00.5
    1fc150000-1fc15ffff : 0000:00:00.5
    1fc200000-1fc21ffff : 0000:00:00.5
    1fc280000-1fc28ffff : 0000:00:00.5

That patch made a fair comment that /proc/iomem might be confusing when
it shows resources without an associated device, but we can do better
than just hide the resource name altogether. Namely, we can print the
device name _and_ the resource name. Like this:

1fc000000-1fc3fffff : pcie@1f0000000
  1fc000000-1fc3fffff : 0000:00:00.5
    1fc010000-1fc01ffff : 0000:00:00.5 sys
    1fc030000-1fc03ffff : 0000:00:00.5 rew
    1fc060000-1fc0603ff : 0000:00:00.5 s2
    1fc070000-1fc0701ff : 0000:00:00.5 devcpu_gcb
    1fc080000-1fc0800ff : 0000:00:00.5 qs
    1fc090000-1fc0900cb : 0000:00:00.5 ptp
    1fc100000-1fc10ffff : 0000:00:00.5 port0
    1fc110000-1fc11ffff : 0000:00:00.5 port1
    1fc120000-1fc12ffff : 0000:00:00.5 port2
    1fc130000-1fc13ffff : 0000:00:00.5 port3
    1fc140000-1fc14ffff : 0000:00:00.5 port4
    1fc150000-1fc15ffff : 0000:00:00.5 port5
    1fc200000-1fc21ffff : 0000:00:00.5 qsys
    1fc280000-1fc28ffff : 0000:00:00.5 ana

Fixes: 8d84b18f56 ("devres: always use dev_name() in devm_ioremap_resource()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20200601095826.1757621-1-olteanv@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:15:55 +02:00
Barry Song 4a60406d35 driver core: platform: expose numa_node to users in sysfs
Some platform devices like ARM SMMU are memory-mapped and populated by ACPI/IORT.
In this case, NUMA topology of those platform devices are exported by firmware as
well. Software might care about the numa_node of those devices in order to achieve
NUMA locality.
This patch will show the numa_node for this kind of devices in sysfs. For those
platform devices without numa, numa_node won't be visible.

Cc: Prime Zeng <prime.zeng@hisilicon.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Link: https://lore.kernel.org/r/20200619030045.81956-1-song.bao.hua@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:14:37 +02:00
Heikki Krogerus 079ad2fb4b kobject: Avoid premature parent object freeing in kobject_cleanup()
If kobject_del() is invoked by kobject_cleanup() to delete the
target kobject, it may cause its parent kobject to be freed
before invoking the target kobject's ->release() method, which
effectively means freeing the parent before dealing with the
child entirely.

That is confusing at best and it may also lead to functional
issues if the callers of kobject_cleanup() are not careful enough
about the order in which these calls are made, so avoid the
problem by making kobject_cleanup() drop the last reference to
the target kobject's parent at the end, after invoking the target
kobject's ->release() method.

[ rjw: Rewrite the subject and changelog, make kobject_cleanup()
  drop the parent reference only when __kobject_del() has been
  called. ]

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 7589238a8c ("Revert "software node: Simplify software_node_release() function"")
Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/1908555.IiAGLGrh1Z@kreacher
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:14:37 +02:00
Barry Song e5711945c6 driver core: platform: need consistent spacing around '-'
Fix the below checkpatch issue:

ERROR: need consistent spacing around '-' (ctx:WxV)
FILE: drivers/base/platform.c:1008:
+       len = acpi_device_modalias(dev, buf, PAGE_SIZE -1);
                                                       ^

Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Link: https://lore.kernel.org/r/20200602045556.66948-1-song.bao.hua@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-07 11:34:31 +02:00
Wolfram Sang 0a2fae2aea lib: update DEBUG_SHIRQ docs to match reality
There is no extra interrupt when registering a shared interrupt handler
since 2011. Update the Kconfig text to make it clear and to avoid wrong
assumptions when debugging issues found by it.

Fixes: 6d83f94db9 ("genirq: Disable the SHIRQ_DEBUG call in request_threaded_irq for now")
Link: https://lore.kernel.org/linux-i2c/859e8211-2c56-8dd5-d6fb-33e4358e4128@pengutronix.de/T/#mf24d7070d7e0c8f17b6be6ceb51df94b7d7613b3
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20200702222024.6915-1-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-03 09:27:05 +02:00
Wolfram Sang 2fce60be06 firmware: improve description of firmware_request_nowarn
The doubled 'however' is confusing. Simplify the comment a little and
reformat the paragraph.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20200702221107.6562-1-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-03 09:27:05 +02:00
Bartosz Golaszewski cad064f1bd devres: handle zero size in devm_kmalloc()
Make devm_kmalloc() behave similarly to non-managed kmalloc(): return
ZERO_SIZE_PTR when requested size is 0. Update devm_kfree() to handle
this case.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200629065008.27620-5-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-02 14:36:02 +02:00
Bartosz Golaszewski 67dd077239 device: remove 'extern' attribute from function prototypes in device.h
Functions are declared 'extern' implicitly by the compiler. There's no
reason to prepend every prototype with it. Remove the 'extern' keyword
from all function declarations in linux/device.h.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200629065008.27620-4-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-02 14:36:02 +02:00
Bartosz Golaszewski dc2a633ccb devres: move the size check from alloc_dr() into a separate function
We will perform the same size check in devm_krealloc(). Move the relevant
code into a separate helper.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200629065008.27620-3-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-02 14:36:02 +02:00
Bartosz Golaszewski 63160c0a7f devres: remove stray space from devm_kmalloc() definition
Use the preferred coding style for functions returning pointers.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200629065008.27620-2-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-02 14:36:01 +02:00
Dan Williams 3022c6a1b4 driver-core: Introduce DEVICE_ATTR_ADMIN_{RO,RW}
A common pattern for using plain DEVICE_ATTR() instead of
DEVICE_ATTR_RO() and DEVICE_ATTR_RW() is for attributes that want to
limit read to only root.  I.e. many users of DEVICE_ATTR() are
specifying 0400 or 0600 for permissions.

Given the expectation that CAP_SYS_ADMIN is needed to access these
sensitive attributes and an explicit helper with the _ADMIN_ identifier
for DEVICE_ATTR_ADMIN_{RO,RW}.

Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/159312906372.1850128.11611897078988158727.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-01 19:16:30 +02:00
Linus Torvalds 9ebcfadb06 Linux 5.8-rc3 2020-06-28 15:00:24 -07:00
Linus Torvalds f7db192b2d ARM: OMAP fixes for v5.8
The OMAP developers are particularly active at hunting down regressions,
 so this is a separate branch with OMAP specific fixes for the v5.8:
 
 As Tony explains
  "The recent display subsystem (DSS) related platform data changes
   caused display related regressions for suspend and resume. Looks like
   I only tested suspend and resume before dropping the legacy platform
   data, and forgot to test it after dropping it. Turns out the main issue
   was that we no longer have platform code calling pm_runtime_suspend
   for DSS like we did for the legacy platform data case, and that fix
   is still being discussed on the dri-devel list and will get merged
   separately. The DSS related testing exposed a pile other other display
   related issues that also need fixing though":
 
  - Fix ti-sysc optional clock handling and reset status checks
    for devices that reset automatically in idle like DSS
 
  - Ignore ti-sysc clockactivity bit unless separately requested
    to avoid unexpected performance issues
 
  - Init ti-sysc framedonetv_irq to true and disable for am4
 
  - Avoid duplicate DSS reset for legacy mode with dts data
 
  - Remove LCD timings for am4 as they cause warnings now that we're
    using generic panels
 
 Other OMAP changes from Tony include:
 
  - Fix omap_prm reset deassert as we still have drivers setting the
    pm_runtime_irq_safe() flag
 
  - Flush posted write for ti-sysc enable and disable
 
  - Fix droid4 spi related errors with spi flags
 
  - Fix am335x USB range and a typo for softreset
 
  - Fix dra7 timer nodes for clocks for IPU and DSP
 
  - Drop duplicate mailboxes after mismerge for dra7
 
  - Prevent pocketgeagle header line signal from accidentally setting
    micro-SD write protection signal by removing the default mux
 
  - Fix NFSroot flakeyness after resume for duover by switching the
    smsc911x gpio interrupt to back to level sensitive
 
  - Fix regression for omap4 clockevent source after recent system
    timer changes
 
  - Yet another ethernet regression fix for the "rgmii" vs "rgmii-rxid"
    phy-mode
 
  - One patch to convert am3/am4 DT files to use the regular sdhci-omap
    driver instead of the old hsmmc driver, this was meant for the
    merge window but got lost in the process.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-omap-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM OMAP fixes from Arnd Bergmann:
 "The OMAP developers are particularly active at hunting down
  regressions, so this is a separate branch with OMAP specific
  fixes for v5.8:

  As Tony explains
    "The recent display subsystem (DSS) related platform data changes
     caused display related regressions for suspend and resume. Looks
     like I only tested suspend and resume before dropping the legacy
     platform data, and forgot to test it after dropping it. Turns out
     the main issue was that we no longer have platform code calling
     pm_runtime_suspend for DSS like we did for the legacy platform data
     case, and that fix is still being discussed on the dri-devel list
     and will get merged separately. The DSS related testing exposed a
     pile other other display related issues that also need fixing
     though":

   - Fix ti-sysc optional clock handling and reset status checks for
     devices that reset automatically in idle like DSS

   - Ignore ti-sysc clockactivity bit unless separately requested to
     avoid unexpected performance issues

   - Init ti-sysc framedonetv_irq to true and disable for am4

   - Avoid duplicate DSS reset for legacy mode with dts data

   - Remove LCD timings for am4 as they cause warnings now that we're
     using generic panels

  Other OMAP changes from Tony include:

   - Fix omap_prm reset deassert as we still have drivers setting the
     pm_runtime_irq_safe() flag

   - Flush posted write for ti-sysc enable and disable

   - Fix droid4 spi related errors with spi flags

   - Fix am335x USB range and a typo for softreset

   - Fix dra7 timer nodes for clocks for IPU and DSP

   - Drop duplicate mailboxes after mismerge for dra7

   - Prevent pocketgeagle header line signal from accidentally setting
     micro-SD write protection signal by removing the default mux

   - Fix NFSroot flakeyness after resume for duover by switching the
     smsc911x gpio interrupt to back to level sensitive

   - Fix regression for omap4 clockevent source after recent system
     timer changes

   - Yet another ethernet regression fix for the "rgmii" vs "rgmii-rxid"
     phy-mode

   - One patch to convert am3/am4 DT files to use the regular sdhci-omap
     driver instead of the old hsmmc driver, this was meant for the
     merge window but got lost in the process"

* tag 'arm-omap-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
  ARM: dts: am5729: beaglebone-ai: fix rgmii phy-mode
  ARM: dts: Fix omap4 system timer source clocks
  ARM: dts: Fix duovero smsc interrupt for suspend
  ARM: dts: am335x-pocketbeagle: Fix mmc0 Write Protect
  Revert "bus: ti-sysc: Increase max softreset wait"
  ARM: dts: am437x-epos-evm: remove lcd timings
  ARM: dts: am437x-gp-evm: remove lcd timings
  ARM: dts: am437x-sk-evm: remove lcd timings
  ARM: dts: dra7-evm-common: Fix duplicate mailbox nodes
  ARM: dts: dra7: Fix timer nodes properly for timer_sys_ck clocks
  ARM: dts: Fix am33xx.dtsi ti,sysc-mask wrong softreset flag
  ARM: dts: Fix am33xx.dtsi USB ranges length
  bus: ti-sysc: Increase max softreset wait
  ARM: OMAP2+: Fix legacy mode dss_reset
  bus: ti-sysc: Fix uninitialized framedonetv_irq
  bus: ti-sysc: Ignore clockactivity unless specified as a quirk
  bus: ti-sysc: Use optional clocks on for enable and wait for softreset bit
  ARM: dts: omap4-droid4: Fix spi configuration and increase rate
  bus: ti-sysc: Flush posted write on enable and disable
  soc: ti: omap-prm: use atomic iopoll instead of sleeping one
  ...
2020-06-28 14:57:14 -07:00
Linus Torvalds e44b59cd75 ARM: SoC fixes for v5.8
Here are a couple of bug fixes, mostly for devicetree files
 
 NXP i.MX:
   - Use correct voltage on some i.MX8M board device trees to
     avoid hardware damage
   - Code fixes for a compiler warning and incorrect reference
     counting, both harmless.
   - Fix the i.MX8M SoC driver to correctly identify imx8mp
   - Fix watchdog configuration in imx6ul-kontron device tree.
 
 Broadcom:
   - A small regression fix for the Raspberry-Pi firmware driver
   - A Kconfig change to use the correct timer driver on Northstar
   - A DT fix for the Luxul XWC-2000 machine
   - Two more DT fixes for NSP SoCs
 
 STmicroelectronics STI
   - Revert one broken patch for L2 cache configuration
 
 ARM Versatile Express:
   - Fix a regression by reverting a broken DT cleanup
 
 TEE drivers:
   - MAINTAINERS: change tee mailing list
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here are a couple of bug fixes, mostly for devicetree files

  NXP i.MX:
   - Use correct voltage on some i.MX8M board device trees to avoid
     hardware damage
   - Code fixes for a compiler warning and incorrect reference counting,
     both harmless.
   - Fix the i.MX8M SoC driver to correctly identify imx8mp
   - Fix watchdog configuration in imx6ul-kontron device tree.

  Broadcom:
   - A small regression fix for the Raspberry-Pi firmware driver
   - A Kconfig change to use the correct timer driver on Northstar
   - A DT fix for the Luxul XWC-2000 machine
   - Two more DT fixes for NSP SoCs

  STmicroelectronics STI
   - Revert one broken patch for L2 cache configuration

  ARM Versatile Express:
   - Fix a regression by reverting a broken DT cleanup

  TEE drivers:
   - MAINTAINERS: change tee mailing list"

* tag 'arm-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  Revert "ARM: sti: Implement dummy L2 cache's write_sec"
  soc: imx8m: fix build warning
  ARM: imx6: add missing put_device() call in imx6q_suspend_init()
  ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram()
  soc: imx8m: Correct i.MX8MP UID fuse offset
  ARM: dts: imx6ul-kontron: Change WDOG_ANY signal from push-pull to open-drain
  ARM: dts: imx6ul-kontron: Move watchdog from Kontron i.MX6UL/ULL board to SoM
  arm64: dts: imx8mm-beacon: Fix voltages on LDO1 and LDO2
  arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
  arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range
  ARM: dts: NSP: Correct FA2 mailbox node
  ARM: bcm2835: Fix integer overflow in rpi_firmware_print_firmware_revision()
  MAINTAINERS: change tee mailing list
  ARM: dts: NSP: Disable PL330 by default, add dma-coherent property
  ARM: bcm: Select ARM_TIMER_SP804 for ARCH_BCM_NSP
  ARM: dts: BCM5301X: Add missing memory "device_type" for Luxul XWC-2000
  arm: dts: vexpress: Move mcc node back into motherboard node
2020-06-28 14:55:18 -07:00
Linus Torvalds 668f532da4 A single DocBook fix.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "A single DocBook fix"

* tag 'timers-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Fix kerneldoc system_device_crosststamp & al
2020-06-28 11:59:08 -07:00
Linus Torvalds ae71d4bf00 A single Kbuild dependency fix.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fix from Ingo Molnar:
 "A single Kbuild dependency fix"

* tag 'perf-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/rapl: Fix RAPL config variable bug
2020-06-28 11:58:14 -07:00
Linus Torvalds bc53f67d24 - Fix build regression on v4.8 and older
- Robustness fix for TPM log parsing code
 - kobject refcount fix for the ESRT parsing code
 - Two efivarfs fixes to make it behave more like an ordinary file system
 - Style fixup for zero length arrays
 - Fix a regression in path separator handling in the initrd loader
 - Fix a missing prototype warning
 - Add some kerneldoc headers for newly introduced stub routines
 - Allow support for SSDT overrides via EFI variables to be disabled
 - Report CPU mode and MMU state upon entry for 32-bit ARM
 - Use the correct stack pointer alignment when entering from mixed mode
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI fixes from Ingo Molnar:

 - Fix build regression on v4.8 and older

 - Robustness fix for TPM log parsing code

 - kobject refcount fix for the ESRT parsing code

 - Two efivarfs fixes to make it behave more like an ordinary file
   system

 - Style fixup for zero length arrays

 - Fix a regression in path separator handling in the initrd loader

 - Fix a missing prototype warning

 - Add some kerneldoc headers for newly introduced stub routines

 - Allow support for SSDT overrides via EFI variables to be disabled

 - Report CPU mode and MMU state upon entry for 32-bit ARM

 - Use the correct stack pointer alignment when entering from mixed mode

* tag 'efi-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/libstub: arm: Print CPU boot mode and MMU state at boot
  efi/libstub: arm: Omit arch specific config table matching array on arm64
  efi/x86: Setup stack correctly for efi_pe_entry
  efi: Make it possible to disable efivar_ssdt entirely
  efi/libstub: Descriptions for stub helper functions
  efi/libstub: Fix path separator regression
  efi/libstub: Fix missing-prototype warning for skip_spaces()
  efi: Replace zero-length array and use struct_size() helper
  efivarfs: Don't return -EINTR when rate-limiting reads
  efivarfs: Update inode modification time for successful writes
  efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
  efi/tpm: Verify event log header before parsing
  efi/x86: Fix build with gcc 4
2020-06-28 11:42:16 -07:00
Linus Torvalds 91a9a90d04 Peter Zijlstra says:
The most anticipated fix in this pull request is probably the horrible build
 fix for the RANDSTRUCT fail that didn't make -rc2. Also included is the cleanup
 that removes those BUILD_BUG_ON()s and replaces it with ugly unions.
 
 Also included is the try_to_wake_up() race fix that was first triggered by
 Paul's RCU-torture runs, but was independently hit by Dave Chinner's fstest
 runs as well.
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Merge tag 'sched_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:
 "The most anticipated fix in this pull request is probably the horrible
  build fix for the RANDSTRUCT fail that didn't make -rc2. Also included
  is the cleanup that removes those BUILD_BUG_ON()s and replaces it with
  ugly unions.

  Also included is the try_to_wake_up() race fix that was first
  triggered by Paul's RCU-torture runs, but was independently hit by
  Dave Chinner's fstest runs as well"

* tag 'sched_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/cfs: change initial value of runnable_avg
  smp, irq_work: Continue smp_call_function*() and irq_work*() integration
  sched/core: s/WF_ON_RQ/WQ_ON_CPU/
  sched/core: Fix ttwu() race
  sched/core: Fix PI boosting between RT and DEADLINE tasks
  sched/deadline: Initialize ->dl_boosted
  sched/core: Check cpus_mask, not cpus_ptr in __set_cpus_allowed_ptr(), to fix mask corruption
  sched/core: Fix CONFIG_GCC_PLUGIN_RANDSTRUCT build fail
2020-06-28 10:37:39 -07:00
Linus Torvalds 098c793821 * AMD Memory bandwidth counter width fix, by Babu Moger.
* Use the proper length type in the 32-bit truncate() syscall variant,
 by Jiri Slaby.
 
 * Reinit IA32_FEAT_CTL during wakeup to fix the case where after
 resume, VMXON would #GP due to VMX not being properly enabled, by Sean
 Christopherson.
 
 * Fix a static checker warning in the resctrl code, by Dan Carpenter.
 
 * Add a CR4 pinning mask for bits which cannot change after boot, by
 Kees Cook.
 
 * Align the start of the loop of __clear_user() to 16 bytes, to improve
 performance on AMD zen1 and zen2 microarchitectures, by Matt Fleming.
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Merge tag 'x86_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - AMD Memory bandwidth counter width fix, by Babu Moger.

 - Use the proper length type in the 32-bit truncate() syscall variant,
   by Jiri Slaby.

 - Reinit IA32_FEAT_CTL during wakeup to fix the case where after
   resume, VMXON would #GP due to VMX not being properly enabled, by
   Sean Christopherson.

 - Fix a static checker warning in the resctrl code, by Dan Carpenter.

 - Add a CR4 pinning mask for bits which cannot change after boot, by
   Kees Cook.

 - Align the start of the loop of __clear_user() to 16 bytes, to improve
   performance on AMD zen1 and zen2 microarchitectures, by Matt Fleming.

* tag 'x86_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm/64: Align start of __clear_user() loop to 16-bytes
  x86/cpu: Use pinning mask for CR4 bits needing to be 0
  x86/resctrl: Fix a NULL vs IS_ERR() static checker warning in rdt_cdp_peer_get()
  x86/cpu: Reinitialize IA32_FEAT_CTL MSR on BSP during wakeup
  syscalls: Fix offset type of ksys_ftruncate()
  x86/resctrl: Fix memory bandwidth counter width for AMD
2020-06-28 10:35:01 -07:00
Linus Torvalds c141b30e99 Paul E. McKenney says:
A single commit that uses "arch_" atomic operations to avoid the
 instrumentation that comes with the non-"arch_" versions. In preparation
 for that commit, it also has another commit that makes these "arch_"
 atomic operations available to generic code.
 
 Without these commits, KCSAN uses can see pointless errors.
 
 Both from Peter Zijlstra.
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Merge tag 'rcu_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU-vs-KCSAN fixes from Borislav Petkov:
 "A single commit that uses "arch_" atomic operations to avoid the
  instrumentation that comes with the non-"arch_" versions.

  In preparation for that commit, it also has another commit that makes
  these "arch_" atomic operations available to generic code.

  Without these commits, KCSAN uses can see pointless errors"

* tag 'rcu_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rcu: Fixup noinstr warnings
  locking/atomics: Provide the arch_atomic_ interface to generic code
2020-06-28 10:29:38 -07:00
Linus Torvalds 7ecb59a566 Peter Zijlstra says:
Address KCOV vs noinstr. There is no function attribute to selectively
 suppress KCOV instrumentation, instead teach objtool to NOP out the
 calls in noinstr functions.
 
 This cures a bunch of KCOV crashes (as used by syzcaller).
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Merge tag 'objtool_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fixes from Borislav Petkov:
 "Three fixes from Peter Zijlstra suppressing KCOV instrumentation in
  noinstr sections.

  Peter Zijlstra says:
    "Address KCOV vs noinstr. There is no function attribute to
     selectively suppress KCOV instrumentation, instead teach objtool
     to NOP out the calls in noinstr functions"

  This cures a bunch of KCOV crashes (as used by syzcaller)"

* tag 'objtool_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix noinstr vs KCOV
  objtool: Provide elf_write_{insn,reloc}()
  objtool: Clean up elf_write() condition
2020-06-28 10:16:15 -07:00
Linus Torvalds a358505d8a Peter Zijlstra says:
These patches address a number of instrumentation issues that were found after
 the x86/entry overhaul. When combined with rcu/urgent and objtool/urgent, these
 patches make UBSAN/KASAN/KCSAN happy again.
 
 Part of making this all work is bumping the minimum GCC version for KASAN
 builds to gcc-8.3, the reason for this is that the __no_sanitize_address
 function attribute is broken in GCC releases before that.
 
 No known GCC version has a working __no_sanitize_undefined, however because the
 only noinstr violation that results from this happens when an UB is found, we
 treat it like WARN. That is, we allow it to violate the noinstr rules in order
 to get the warning out.
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Merge tag 'x86_entry_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 entry fixes from Borislav Petkov:
 "This is the x86/entry urgent pile which has accumulated since the
  merge window.

  It is not the smallest but considering the almost complete entry core
  rewrite, the amount of fixes to follow is somewhat higher than usual,
  which is to be expected.

  Peter Zijlstra says:
   'These patches address a number of instrumentation issues that were
    found after the x86/entry overhaul. When combined with rcu/urgent
    and objtool/urgent, these patches make UBSAN/KASAN/KCSAN happy
    again.

    Part of making this all work is bumping the minimum GCC version for
    KASAN builds to gcc-8.3, the reason for this is that the
    __no_sanitize_address function attribute is broken in GCC releases
    before that.

    No known GCC version has a working __no_sanitize_undefined, however
    because the only noinstr violation that results from this happens
    when an UB is found, we treat it like WARN. That is, we allow it to
    violate the noinstr rules in order to get the warning out'"

* tag 'x86_entry_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/entry: Fix #UD vs WARN more
  x86/entry: Increase entry_stack size to a full page
  x86/entry: Fixup bad_iret vs noinstr
  objtool: Don't consider vmlinux a C-file
  kasan: Fix required compiler version
  compiler_attributes.h: Support no_sanitize_undefined check with GCC 4
  x86/entry, bug: Comment the instrumentation_begin() usage for WARN()
  x86/entry, ubsan, objtool: Whitelist __ubsan_handle_*()
  x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline()
  compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr
  kasan: Bump required compiler version
  x86, kcsan: Add __no_kcsan to noinstr
  kcsan: Remove __no_kcsan_or_inline
  x86, kcsan: Remove __no_kcsan_or_inline usage
2020-06-28 09:42:47 -07:00
Vincent Guittot e21cf43406 sched/cfs: change initial value of runnable_avg
Some performance regression on reaim benchmark have been raised with
  commit 070f5e860e ("sched/fair: Take into account runnable_avg to classify group")

The problem comes from the init value of runnable_avg which is initialized
with max value. This can be a problem if the newly forked task is finally
a short task because the group of CPUs is wrongly set to overloaded and
tasks are pulled less agressively.

Set initial value of runnable_avg equals to util_avg to reflect that there
is no waiting time so far.

Fixes: 070f5e860e ("sched/fair: Take into account runnable_avg to classify group")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200624154422.29166-1-vincent.guittot@linaro.org
2020-06-28 17:01:20 +02:00
Peter Zijlstra 8c4890d1c3 smp, irq_work: Continue smp_call_function*() and irq_work*() integration
Instead of relying on BUG_ON() to ensure the various data structures
line up, use a bunch of horrible unions to make it all automatic.

Much of the union magic is to ensure irq_work and smp_call_function do
not (yet) see the members of their respective data structures change
name.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/20200622100825.844455025@infradead.org
2020-06-28 17:01:20 +02:00
Peter Zijlstra 739f70b476 sched/core: s/WF_ON_RQ/WQ_ON_CPU/
Use a better name for this poorly named flag, to avoid confusion...

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Link: https://lkml.kernel.org/r/20200622100825.785115830@infradead.org
2020-06-28 17:01:20 +02:00
Peter Zijlstra b6e13e8582 sched/core: Fix ttwu() race
Paul reported rcutorture occasionally hitting a NULL deref:

  sched_ttwu_pending()
    ttwu_do_wakeup()
      check_preempt_curr() := check_preempt_wakeup()
        find_matching_se()
          is_same_group()
            if (se->cfs_rq == pse->cfs_rq) <-- *BOOM*

Debugging showed that this only appears to happen when we take the new
code-path from commit:

  2ebb177175 ("sched/core: Offload wakee task activation if it the wakee is descheduling")

and only when @cpu == smp_processor_id(). Something which should not
be possible, because p->on_cpu can only be true for remote tasks.
Similarly, without the new code-path from commit:

  c6e7bd7afa ("sched/core: Optimize ttwu() spinning on p->on_cpu")

this would've unconditionally hit:

  smp_cond_load_acquire(&p->on_cpu, !VAL);

and if: 'cpu == smp_processor_id() && p->on_cpu' is possible, this
would result in an instant live-lock (with IRQs disabled), something
that hasn't been reported.

The NULL deref can be explained however if the task_cpu(p) load at the
beginning of try_to_wake_up() returns an old value, and this old value
happens to be smp_processor_id(). Further assume that the p->on_cpu
load accurately returns 1, it really is still running, just not here.

Then, when we enqueue the task locally, we can crash in exactly the
observed manner because p->se.cfs_rq != rq->cfs_rq, because p's cfs_rq
is from the wrong CPU, therefore we'll iterate into the non-existant
parents and NULL deref.

The closest semi-plausible scenario I've managed to contrive is
somewhat elaborate (then again, actual reproduction takes many CPU
hours of rcutorture, so it can't be anything obvious):

					X->cpu = 1
					rq(1)->curr = X

	CPU0				CPU1				CPU2

					// switch away from X
					LOCK rq(1)->lock
					smp_mb__after_spinlock
					dequeue_task(X)
					  X->on_rq = 9
					switch_to(Z)
					  X->on_cpu = 0
					UNLOCK rq(1)->lock

									// migrate X to cpu 0
									LOCK rq(1)->lock
									dequeue_task(X)
									set_task_cpu(X, 0)
									  X->cpu = 0
									UNLOCK rq(1)->lock

									LOCK rq(0)->lock
									enqueue_task(X)
									  X->on_rq = 1
									UNLOCK rq(0)->lock

	// switch to X
	LOCK rq(0)->lock
	smp_mb__after_spinlock
	switch_to(X)
	  X->on_cpu = 1
	UNLOCK rq(0)->lock

	// X goes sleep
	X->state = TASK_UNINTERRUPTIBLE
	smp_mb();			// wake X
					ttwu()
					  LOCK X->pi_lock
					  smp_mb__after_spinlock

					  if (p->state)

					  cpu = X->cpu; // =? 1

					  smp_rmb()

	// X calls schedule()
	LOCK rq(0)->lock
	smp_mb__after_spinlock
	dequeue_task(X)
	  X->on_rq = 0

					  if (p->on_rq)

					  smp_rmb();

					  if (p->on_cpu && ttwu_queue_wakelist(..)) [*]

					  smp_cond_load_acquire(&p->on_cpu, !VAL)

					  cpu = select_task_rq(X, X->wake_cpu, ...)
					  if (X->cpu != cpu)
	switch_to(Y)
	  X->on_cpu = 0
	UNLOCK rq(0)->lock

However I'm having trouble convincing myself that's actually possible
on x86_64 -- after all, every LOCK implies an smp_mb() there, so if ttwu
observes ->state != RUNNING, it must also observe ->cpu != 1.

(Most of the previous ttwu() races were found on very large PowerPC)

Nevertheless, this fully explains the observed failure case.

Fix it by ordering the task_cpu(p) load after the p->on_cpu load,
which is easy since nothing actually uses @cpu before this.

Fixes: c6e7bd7afa ("sched/core: Optimize ttwu() spinning on p->on_cpu")
Reported-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200622125649.GC576871@hirez.programming.kicks-ass.net
2020-06-28 17:01:20 +02:00
Juri Lelli 740797ce3a sched/core: Fix PI boosting between RT and DEADLINE tasks
syzbot reported the following warning:

 WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
 enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504

At deadline.c:628 we have:

 623 static inline void setup_new_dl_entity(struct sched_dl_entity *dl_se)
 624 {
 625 	struct dl_rq *dl_rq = dl_rq_of_se(dl_se);
 626 	struct rq *rq = rq_of_dl_rq(dl_rq);
 627
 628 	WARN_ON(dl_se->dl_boosted);
 629 	WARN_ON(dl_time_before(rq_clock(rq), dl_se->deadline));
        [...]
     }

Which means that setup_new_dl_entity() has been called on a task
currently boosted. This shouldn't happen though, as setup_new_dl_entity()
is only called when the 'dynamic' deadline of the new entity
is in the past w.r.t. rq_clock and boosted tasks shouldn't verify this
condition.

Digging through the PI code I noticed that what above might in fact happen
if an RT tasks blocks on an rt_mutex hold by a DEADLINE task. In the
first branch of boosting conditions we check only if a pi_task 'dynamic'
deadline is earlier than mutex holder's and in this case we set mutex
holder to be dl_boosted. However, since RT 'dynamic' deadlines are only
initialized if such tasks get boosted at some point (or if they become
DEADLINE of course), in general RT 'dynamic' deadlines are usually equal
to 0 and this verifies the aforementioned condition.

Fix it by checking that the potential donor task is actually (even if
temporary because in turn boosted) running at DEADLINE priority before
using its 'dynamic' deadline value.

Fixes: 2d3d891d33 ("sched/deadline: Add SCHED_DEADLINE inheritance logic")
Reported-by: syzbot+119ba87189432ead09b4@syzkaller.appspotmail.com
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Tested-by: Daniel Wagner <dwagner@suse.de>
Link: https://lkml.kernel.org/r/20181119153201.GB2119@localhost.localdomain
2020-06-28 17:01:20 +02:00
Juri Lelli ce9bc3b27f sched/deadline: Initialize ->dl_boosted
syzbot reported the following warning triggered via SYSC_sched_setattr():

  WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 setup_new_dl_entity /kernel/sched/deadline.c:594 [inline]
  WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 enqueue_dl_entity /kernel/sched/deadline.c:1370 [inline]
  WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 enqueue_task_dl+0x1c17/0x2ba0 /kernel/sched/deadline.c:1441

This happens because the ->dl_boosted flag is currently not initialized by
__dl_clear_params() (unlike the other flags) and setup_new_dl_entity()
rightfully complains about it.

Initialize dl_boosted to 0.

Fixes: 2d3d891d33 ("sched/deadline: Add SCHED_DEADLINE inheritance logic")
Reported-by: syzbot+5ac8bac25f95e8b221e7@syzkaller.appspotmail.com
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Daniel Wagner <dwagner@suse.de>
Link: https://lkml.kernel.org/r/20200617072919.818409-1-juri.lelli@redhat.com
2020-06-28 17:01:20 +02:00
Scott Wood fd844ba9ae sched/core: Check cpus_mask, not cpus_ptr in __set_cpus_allowed_ptr(), to fix mask corruption
This function is concerned with the long-term CPU mask, not the
transitory mask the task might have while migrate disabled.  Before
this patch, if a task was migrate-disabled at the time
__set_cpus_allowed_ptr() was called, and the new mask happened to be
equal to the CPU that the task was running on, then the mask update
would be lost.

Signed-off-by: Scott Wood <swood@redhat.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200617121742.cpxppyi7twxmpin7@linutronix.de
2020-06-28 17:01:20 +02:00
Peter Zijlstra 4f311afc20 sched/core: Fix CONFIG_GCC_PLUGIN_RANDSTRUCT build fail
As a temporary build fix, the proper cleanup needs more work.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Eric Biggers <ebiggers@kernel.org>
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Fixes: a148866489 ("sched: Replace rq::wake_list")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-06-28 17:01:20 +02:00
Arnd Bergmann 42d3f7e8da i.MX fixes for 5.8:
- Fix LDO1 and LDO2 voltage range for a couple of i.MX8M board device
   trees.
 - Fix i.MX8MP UID fuse offset in i.MX8M SoC driver.
 - Fix watchdog configuration in imx6ul-kontron device tree.
 - Fix one build warning seen on building soc-imx8m driver with
   x86_64-randconfig.
 - Add missing put_device() call for a couple of mach-imx PM functions.
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Merge tag 'imx-fixes-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 5.8:

- Fix LDO1 and LDO2 voltage range for a couple of i.MX8M board device
  trees.
- Fix i.MX8MP UID fuse offset in i.MX8M SoC driver.
- Fix watchdog configuration in imx6ul-kontron device tree.
- Fix one build warning seen on building soc-imx8m driver with
  x86_64-randconfig.
- Add missing put_device() call for a couple of mach-imx PM functions.

* tag 'imx-fixes-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx8m: fix build warning
  ARM: imx6: add missing put_device() call in imx6q_suspend_init()
  ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram()
  soc: imx8m: Correct i.MX8MP UID fuse offset
  ARM: dts: imx6ul-kontron: Change WDOG_ANY signal from push-pull to open-drain
  ARM: dts: imx6ul-kontron: Move watchdog from Kontron i.MX6UL/ULL board to SoM
  arm64: dts: imx8mm-beacon: Fix voltages on LDO1 and LDO2
  arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
  arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range

Link: https://lore.kernel.org/r/20200624111725.GA24312@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:48:19 +02:00
Arnd Bergmann 2596ce4b4d This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers fixes
for 5.8, please pull the following:
 
 - Andy provides a fix for the Raspberry Pi firmware driver to print the
   correct time upon boot. This is a fallout from a converstion to use
   the ptT format
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Merge tag 'arm-soc/for-5.8/drivers-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers fixes
for 5.8, please pull the following:

- Andy provides a fix for the Raspberry Pi firmware driver to print the
  correct time upon boot. This is a fallout from a converstion to use
  the ptT format

* tag 'arm-soc/for-5.8/drivers-fixes' of https://github.com/Broadcom/stblinux:
  ARM: bcm2835: Fix integer overflow in rpi_firmware_print_firmware_revision()

Link: https://lore.kernel.org/r/20200619202250.19029-2-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:48:06 +02:00
Arnd Bergmann 6d89c73ca5 This pull request contains Broadcom ARM-based SoCs machine/Kconfig fixes
for 5.8, please pull the following:
 
 - Matthew adds a missing select to permit the use of the standard ARM
   SP804 timers on Norsthstar Plus (NSP)
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Merge tag 'arm-soc/for-5.8/soc-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM-based SoCs machine/Kconfig fixes
for 5.8, please pull the following:

- Matthew adds a missing select to permit the use of the standard ARM
  SP804 timers on Norsthstar Plus (NSP)

* tag 'arm-soc/for-5.8/soc-fixes' of https://github.com/Broadcom/stblinux:
  ARM: bcm: Select ARM_TIMER_SP804 for ARCH_BCM_NSP

Link: https://lore.kernel.org/r/20200619202250.19029-3-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:47:40 +02:00
Arnd Bergmann 275087fc3e This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.8, please pull the following:
 
 - Rafal adds a missing 'device_type' property to the Luxul XWC-2000
   required for the memory nodes to be correctly parsed by Linux
 
 - Matthew provides two fixes for the NSP SoCs, one to disable the PL330
   DMA controller by default since it can be left in reset by the
   bootloader and the second to correct the flow accelerator mailbox node
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Merge tag 'arm-soc/for-5.8/devicetree-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.8, please pull the following:

- Rafal adds a missing 'device_type' property to the Luxul XWC-2000
  required for the memory nodes to be correctly parsed by Linux

- Matthew provides two fixes for the NSP SoCs, one to disable the PL330
  DMA controller by default since it can be left in reset by the
  bootloader and the second to correct the flow accelerator mailbox node

* tag 'arm-soc/for-5.8/devicetree-fixes' of https://github.com/Broadcom/stblinux:
  ARM: dts: NSP: Correct FA2 mailbox node
  ARM: dts: NSP: Disable PL330 by default, add dma-coherent property
  ARM: dts: BCM5301X: Add missing memory "device_type" for Luxul XWC-2000

Link: https://lore.kernel.org/r/20200619202250.19029-1-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:47:24 +02:00
Patrice Chotard 0f77ce26eb Revert "ARM: sti: Implement dummy L2 cache's write_sec"
This reverts commit 7b8e0188fa.

Initially, STiH410-B2260 was supposed to be secured, that's why
l2c_write_sec was stubbed to avoid secure register access from
non secure world.

But by default, STiH410-B2260 is running in non secure mode,
so L2 cache register accesses are authorized, l2c_write_sec stub
is not needed.

With this patch, L2 cache is configured and performance are enhanced.

Link: https://lore.kernel.org/r/20200618172456.29475-1-patrice.chotard@st.com
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Cc: Alain Volmat <alain.volmat@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:46:54 +02:00
Arnd Bergmann d528945d77 Few dts fixes for omaps for v5.8
Few fixes for various devices:
 
 - Prevent pocketgeagle header line signal from accidentally setting
   micro-SD write protection signal by removing the default mux
 
 - Fix NFSroot flakeyness after resume for duover by switching the
   smsc911x gpio interrupt to back to level sensitive
 
 - Fix regression for omap4 clockevent source after recent system
   timer changes
 
 - Yet another ethernet regression fix for the "rgmii" vs "rgmii-rxid"
   phy-mode
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Merge tag 'omap-for-v5.8/fixes-rc1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap-fixes

Few dts fixes for omaps for v5.8

Few fixes for various devices:

- Prevent pocketgeagle header line signal from accidentally setting
  micro-SD write protection signal by removing the default mux

- Fix NFSroot flakeyness after resume for duover by switching the
  smsc911x gpio interrupt to back to level sensitive

- Fix regression for omap4 clockevent source after recent system
  timer changes

- Yet another ethernet regression fix for the "rgmii" vs "rgmii-rxid"
  phy-mode

* tag 'omap-for-v5.8/fixes-rc1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am5729: beaglebone-ai: fix rgmii phy-mode
  ARM: dts: Fix omap4 system timer source clocks
  ARM: dts: Fix duovero smsc interrupt for suspend
  ARM: dts: am335x-pocketbeagle: Fix mmc0 Write Protect

Link: https://lore.kernel.org/r/pull-1592499282-121092@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:45:08 +02:00
Arnd Bergmann 8705ed2f72 Missed sdhci patch for am3 and am4
I forgot to send a pull request earlier for converting am3 and am4 to
 use sdhci-omap driver instead of the old omap_hsmmc driver.
 
 There was a display subsystem related suspend and resume regression found
 recently and looks like I forgot to send a pull request for this patch
 while debugging the regression. This patch has been tested without the
 display subsystem, and has been in Linux next for several weeks now, so
 would be good to have merged for v5.8.
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Merge tag 'omap-for-v5.8/dt-missed-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap-fixes

Missed sdhci patch for am3 and am4

I forgot to send a pull request earlier for converting am3 and am4 to
use sdhci-omap driver instead of the old omap_hsmmc driver.

There was a display subsystem related suspend and resume regression found
recently and looks like I forgot to send a pull request for this patch
while debugging the regression. This patch has been tested without the
display subsystem, and has been in Linux next for several weeks now, so
would be good to have merged for v5.8.

* tag 'omap-for-v5.8/dt-missed-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Move am33xx and am43xx mmc nodes to sdhci-omap driver

Link: https://lore.kernel.org/r/pull-1591637467-607254@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:44:41 +02:00
Arnd Bergmann 4c9f47ce57 Merge tag 'tee-ml-for-v5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/fixes
Change the TEE mailing list in MAINTAINERS

* tag 'tee-ml-for-v5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  MAINTAINERS: change tee mailing list

Link: https://lore.kernel.org/r/20200616075948.GA2288211@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:42:26 +02:00
Arnd Bergmann 5b75f16f13 Fixes for omaps for v5.8
The recent display subsystem (DSS) related platform data changes caused
 display related regressions for suspend and resume. Looks like I only
 tested suspend and resume before dropping the legacy platform data, and
 forgot to test it after dropping it. Turns out the main issue was that
 we no longer have platform code calling pm_runtime_suspend for DSS like
 we did for the legacy platform data case, and that fix is still being
 discussed on the dri-devel list and will get merged separately. The DSS
 related testing exposed a pile other other display related issues that
 also need fixing though:
 
 - Fix ti-sysc optional clock handling and reset status checks
   for devices that reset automatically in idle like DSS
 
 - Ignore ti-sysc clockactivity bit unless separately requested
   to avoid unexpected performance issues
 
 - Init ti-sysc framedonetv_irq to true and disable for am4
 
 - Avoid duplicate DSS reset for legacy mode with dts data
 
 - Remove LCD timings for am4 as they cause warnings now that we're
   using generic panels
 
 Then there is a pile of other fixes not related to the DSS:
 
 - Fix omap_prm reset deassert as we still have drivers setting the
   pm_runtime_irq_safe() flag
 
 - Flush posted write for ti-sysc enable and disable
 
 - Fix droid4 spi related errors with spi flags
 
 - Fix am335x USB range and a typo for softreset
 
 - Fix dra7 timer nodes for clocks for IPU and DSP
 
 - Drop duplicate mailboxes after mismerge for dra7
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Merge tag 'omap-for-v5.8/fixes-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.8

The recent display subsystem (DSS) related platform data changes caused
display related regressions for suspend and resume. Looks like I only
tested suspend and resume before dropping the legacy platform data, and
forgot to test it after dropping it. Turns out the main issue was that
we no longer have platform code calling pm_runtime_suspend for DSS like
we did for the legacy platform data case, and that fix is still being
discussed on the dri-devel list and will get merged separately. The DSS
related testing exposed a pile other other display related issues that
also need fixing though:

- Fix ti-sysc optional clock handling and reset status checks
  for devices that reset automatically in idle like DSS

- Ignore ti-sysc clockactivity bit unless separately requested
  to avoid unexpected performance issues

- Init ti-sysc framedonetv_irq to true and disable for am4

- Avoid duplicate DSS reset for legacy mode with dts data

- Remove LCD timings for am4 as they cause warnings now that we're
  using generic panels

Then there is a pile of other fixes not related to the DSS:

- Fix omap_prm reset deassert as we still have drivers setting the
  pm_runtime_irq_safe() flag

- Flush posted write for ti-sysc enable and disable

- Fix droid4 spi related errors with spi flags

- Fix am335x USB range and a typo for softreset

- Fix dra7 timer nodes for clocks for IPU and DSP

- Drop duplicate mailboxes after mismerge for dra7

* tag 'omap-for-v5.8/fixes-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  Revert "bus: ti-sysc: Increase max softreset wait"
  ARM: dts: am437x-epos-evm: remove lcd timings
  ARM: dts: am437x-gp-evm: remove lcd timings
  ARM: dts: am437x-sk-evm: remove lcd timings
  ARM: dts: dra7-evm-common: Fix duplicate mailbox nodes
  ARM: dts: dra7: Fix timer nodes properly for timer_sys_ck clocks
  ARM: dts: Fix am33xx.dtsi ti,sysc-mask wrong softreset flag
  ARM: dts: Fix am33xx.dtsi USB ranges length
  bus: ti-sysc: Increase max softreset wait
  ARM: OMAP2+: Fix legacy mode dss_reset
  bus: ti-sysc: Fix uninitialized framedonetv_irq
  bus: ti-sysc: Ignore clockactivity unless specified as a quirk
  bus: ti-sysc: Use optional clocks on for enable and wait for softreset bit
  ARM: dts: omap4-droid4: Fix spi configuration and increase rate
  bus: ti-sysc: Flush posted write on enable and disable
  soc: ti: omap-prm: use atomic iopoll instead of sleeping one

Link: https://lore.kernel.org/r/pull-1591889257-410830@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-06-28 14:41:55 +02:00
David Howells 719fdd3292 afs: Fix storage of cell names
The cell name stored in the afs_cell struct is a 64-char + NUL buffer -
when it needs to be able to handle up to AFS_MAXCELLNAME (256 chars) + NUL.

Fix this by changing the array to a pointer and allocating the string.

Found using Coverity.

Fixes: 989782dcdc ("afs: Overhaul cell database management")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-27 22:04:24 -07:00
Linus Torvalds 916a3b0fc1 6 cifs/smb3 fixes, 3 for stable. Fixes xfstests 451, 313 and 316
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Merge tag '5.8-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Six cifs/smb3 fixes, three of them for stable.

  Fixes xfstests 451, 313 and 316"

* tag '5.8-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: misc: Use array_size() in if-statement controlling expression
  cifs: update ctime and mtime during truncate
  cifs/smb3: Fix data inconsistent when punch hole
  cifs/smb3: Fix data inconsistent when zero file range
  cifs: Fix double add page to memcg when cifs_readpages
  cifs: Fix cached_fid refcnt leak in open_shroot
2020-06-27 15:24:04 -07:00
Linus Torvalds 3cd1c5d582 SCSI fixes on 20200627
Six small fixes, five in drivers and one to correct another minor
 regression from cc97923a5b ("block: move dma drain handling to
 scsi") where we still need the drain stub to be built in to the kernel
 for the modular libata, non-modular SAS driver case.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Six small fixes, five in drivers and one to correct another minor
  regression from cc97923a5b ("block: move dma drain handling to
  scsi") where we still need the drain stub to be built in to the kernel
  for the modular libata, non-modular SAS driver case"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mptscsih: Fix read sense data size
  scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action
  scsi: lpfc: Avoid another null dereference in lpfc_sli4_hba_unset()
  scsi: libata: Fix the ata_scsi_dma_need_drain stub
  scsi: qla2xxx: Keep initiator ports after RSCN
  scsi: qla2xxx: Set NVMe status code for failed NVMe FCP request
2020-06-27 15:20:03 -07:00
Linus Torvalds c322f5399f VFIO fixes for v5.8-rc3
- Fix double free of eventfd ctx (Alex Williamson)
 
  - Fix duplicate use of capability ID (Alex Williamson)
 
  - Fix SR-IOV VF memory enable handling (Alex Williamson)
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Merge tag 'vfio-v5.8-rc3' of git://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:

 - Fix double free of eventfd ctx (Alex Williamson)

 - Fix duplicate use of capability ID (Alex Williamson)

 - Fix SR-IOV VF memory enable handling (Alex Williamson)

* tag 'vfio-v5.8-rc3' of git://github.com/awilliam/linux-vfio:
  vfio/pci: Fix SR-IOV VF handling with MMIO blocking
  vfio/type1: Fix migration info capability ID
  vfio/pci: Clear error and request eventfd ctx after releasing
2020-06-27 15:17:21 -07:00
Linus Torvalds 8bf9865187 Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "This contains a 5.8 regression fix for the Designware driver, a
  register bitfield fix for the fsi driver, and a missing sanity check
  for the I2C core"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: core: check returned size of emulated smbus block read
  i2c: fsi: Fix the port number field in status register
  i2c: designware: Adjust bus speed independently of ACPI
2020-06-27 15:15:37 -07:00
Linus Torvalds 42afe7d1c6 Staging driver fixes for 5.8-rc3
Here are a small number of tiny staging driver fixes for 5.8-rc3.
 
 Not much here, but there were some reported problems to be fixed:
 	- 3 wfx driver fixes
 	- rtl8723bs driver fix
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are a small number of tiny staging driver fixes for 5.8-rc3.

  Not much here, but there were some reported problems to be fixed:

   - three wfx driver fixes

   - rtl8723bs driver fix

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

* tag 'staging-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  Staging: rtl8723bs: prevent buffer overflow in update_sta_support_rate()
  staging: wfx: fix coherency of hif_scan() prototype
  staging: wfx: drop useless loop
  staging: wfx: fix AC priority
2020-06-27 13:14:15 -07:00
Linus Torvalds 7eb8f53b8a USB fixes for 5.8-rc3
Here are some small USB fixes for 5.8-rc3 to resolve some reported
 issues.
 
 Nothing major here:
 	- gadget driver fixes
 	- cdns3 driver fixes
 	- xhci fixes
 	- renesas_usbhs driver fixes
 	- some new device support with ids
 	- documentation update
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 5.8-rc3 to resolve some reported
  issues.

  Nothing major here:

   - gadget driver fixes

   - cdns3 driver fixes

   - xhci fixes

   - renesas_usbhs driver fixes

   - some new device support with ids

   - documentation update

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

* tag 'usb-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (27 commits)
  usb: renesas_usbhs: getting residue from callback_result
  Revert "usb: dwc3: exynos: Add support for Exynos5422 suspend clk"
  xhci: Poll for U0 after disabling USB2 LPM
  xhci: Return if xHCI doesn't support LPM
  usb: host: xhci-mtk: avoid runtime suspend when removing hcd
  xhci: Fix enumeration issue when setting max packet size for FS devices.
  xhci: Fix incorrect EP_STATE_MASK
  usb: cdns3: ep0: add spinlock for cdns3_check_new_setup
  usb: cdns3: trace: using correct dir value
  usb: cdns3: ep0: fix the test mode set incorrectly
  Revert "usb: dwc3: exynos: Add support for Exynos5422 suspend clk"
  usb: gadget: udc: Potential Oops in error handling code
  usb: phy: tegra: Fix unnecessary check in tegra_usb_phy_probe()
  usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work
  usb: cdns3: ep0: add spinlock for cdns3_check_new_setup
  usb: cdns3: trace: using correct dir value
  usb: cdns3: ep0: fix the test mode set incorrectly
  usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs
  USB: ohci-sm501: Add missed iounmap() in remove
  cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip
  ...
2020-06-27 13:12:10 -07:00
Linus Torvalds fc3ebc3c64 Char/Misc fixes for 5.8-rc3
Some tiny char/misc driver fixes for 5.8-rc3.
 
 "largest" changes are in the mei driver, to resolve some reported
 problems and add some new device ids.  There's also a binder bugfix, an
 fpga driver build fix, and some assorted habanalabs fixes.
 
 All of these, except for the habanalabs fixes, have been in linux-next
 with no reported issues.  The habanalabs driver changes showed up in my
 tree on Friday, but as they are totally self-contained, all should be
 good there.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg KH:
 "Some tiny char/misc driver fixes for 5.8-rc3.

  The "largest" changes are in the mei driver, to resolve some reported
  problems and add some new device ids. There's also a binder bugfix, an
  fpga driver build fix, and some assorted habanalabs fixes.

  All of these, except for the habanalabs fixes, have been in linux-next
  with no reported issues. The habanalabs driver changes showed up in my
  tree on Friday, but as they are totally self-contained, all should be
  good there"

* tag 'char-misc-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  habanalabs: increase h/w timer when checking idle
  habanalabs: Correct handling when failing to enqueue CB
  habanalabs: increase GAUDI QMAN ARB WDT timeout
  habanalabs: rename mmu_write() to mmu_asid_va_write()
  habanalabs: use PI in MMU cache invalidation
  habanalabs: block scalar load_and_exe on external queue
  mei: me: add tiger lake point device ids for H platforms.
  mei: me: disable mei interface on Mehlow server platforms
  binder: fix null deref of proc->context
  fpga: zynqmp: fix modular build
2020-06-27 13:10:31 -07:00