Jason Liu [Thu, 25 Aug 2022 08:32:55 +0000 (16:32 +0800)]
watchdog: imx7ulp_wdt: init wdog when it was active
Paired with suspend, we can only init wdog again when it was active
and ping it once to avoid the watchdog timeout after it resumed.
Signed-off-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Tested-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-7-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Ye Li [Thu, 25 Aug 2022 08:32:54 +0000 (16:32 +0800)]
watchdog: imx7ulp_wdt: Handle wdog reconfigure failure
Current driver may meet reconfigure failure caused by below reasons:
1. The wdog on iMX7ULP has different behavior after RCS valid. It needs
to wait more than 2.5 wdog clock for clock sync before next
reconfiguration, while imx8ulp wdog does not need such delay.
2. After unlock, there is 128 bus clock window opened for reconfiguration,
but on iMX8ULP, the HW can't guarantee the latency. So it is possible
the window is closed before the writing arrives to wdog.
3. If the PRES is enabled, the RCS valid time becomes x256 to the time
of PRES disabled. It is about 1715ms on iMX8ULP. So We have to increase
the RCS timeout and can't wait it in IRQ disabled.
The patch updates the driver to handle failures
1. Using different wait for unlock and RCS. Unlock valid time is very short
and only related to bus clock. It must be in IRQ disabled to avoid
being interrupted in 128 clock window. But for RCS time, it is longer
and ok for IRQ enabled.
2. Add retry for any reconfigure failure with default 5 times.
3. Add "fsl,imx8ulp-wdt" compatile string for iMX8ULP and afterwards
platform which don't need more 2.5 wdog clock after RCS valid.
For imx7ulp, add post delay of 2.5 clock after RCS valid.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-6-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Ye Li [Thu, 25 Aug 2022 08:32:53 +0000 (16:32 +0800)]
watchdog: imx7ulp_wdt: Fix RCS timeout issue
According to measure on i.MX7ULP and i.MX8ULP, the RCS done needs
about 3400us and 6700us respectively. So current 20us timeout is
not enough. When reconfiguring is on-going, unlock and configure CS
will lead to unknown result.
Increase the wait timeout value to 10ms and check the return value
of RCS wait to fix the issue
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-5-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Ye Li [Thu, 25 Aug 2022 08:32:52 +0000 (16:32 +0800)]
watchdog: imx7ulp_wdt: Check CMD32EN in wdog init
When bootloader has enabled the CMD32EN bit, switch to use 32bits
unlock command to unlock the CS register. Using 32bits command will
help on avoiding 16 bus cycle window violation for two 16 bits
commands.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-4-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Jacky Bai [Thu, 25 Aug 2022 08:32:51 +0000 (16:32 +0800)]
watchdog: imx7ulp: Add explict memory barrier for unlock sequence
When reconfiguring the WDOG Timer of i.MX7ULP, there is a certain
probability causes it to reset. The reason is that the CMD32EN of the
WDOG Timer of i.MX7ULP is disabled in bootloader. The unlock sequence
are two 16-bit writes to the CNT register within 16 bus clocks. Adding
mb() is to guarantee that two 16-bit writes are finished within 16 bus
clocks. Memory barriers cannot be added between these two 16-bit writes
so that writel_relaxed is used.
Suggested-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-3-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Anson Huang [Thu, 25 Aug 2022 08:32:50 +0000 (16:32 +0800)]
watchdog: imx7ulp: Move suspend/resume to noirq phase
The i.MX7ULP's watchdog is enabled by default when out of reset, so the
resume callback which is to disable watchdog should be called earlier
to avoid unexpected timeout, move suspend/resume callback to noirq phase.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Tested-by: Peter Chen <peter.chen@nxp.com>
Tested-by: Li Jun <jun.li@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-2-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
ye xingchen [Tue, 2 Aug 2022 07:46:43 +0000 (07:46 +0000)]
watchdog: rti-wdt:using the pm_runtime_resume_and_get to simplify the code
Using pm_runtime_resume_and_get() to instade of pm_runtime_get_sync
and pm_runtime_put_noidle.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220802074643.1648660-1-ye.xingchen@zte.com.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Johan Jonker [Fri, 9 Sep 2022 22:01:56 +0000 (00:01 +0200)]
dt-bindings: watchdog: rockchip: add rockchip,rk3128-wdt
Add rockchip,rk3128-wdt compatible string.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/a4da79fe-3449-6538-742f-790835ffe43a@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Chanho Park [Fri, 20 May 2022 12:17:48 +0000 (21:17 +0900)]
watchdog: s3c2410_wdt: support exynosautov9 watchdog
Like exynos850, exynosautov9 SoC also has two cpu watchdogs.
Unfortunately, some configurations are slightly different so we need to
add samsung,exynosautov9-wdt and separate drv data for those watchdogs.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220520121750.71473-3-chanho61.park@samsung.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Chanho Park [Fri, 20 May 2022 12:17:47 +0000 (21:17 +0900)]
dt-bindings: watchdog: add exynosautov9 compatible
Adds "samsung,exynosautov9-wdt" to samsung-wdt compatible. This has two
cpu watchdogs like exynos850.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220520121750.71473-2-chanho61.park@samsung.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Jonathan Neuschäfer [Fri, 10 Jun 2022 07:21:37 +0000 (09:21 +0200)]
watchdog: npcm: Enable clock if provided
On the Nuvoton WPCM450 SoC, with its upcoming clock driver, peripheral
clocks are individually gated and ungated. Therefore, the watchdog
driver must be able to ungate the watchdog clock.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220610072141.347795-3-j.neuschaefer@gmx.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Philippe Boos [Mon, 1 Aug 2022 09:21:50 +0000 (11:21 +0200)]
watchdog: meson: keep running if already active
If the watchdog is already running (e.g.: started by bootloader) then
the kernel driver should keep the watchdog active but the amlogic driver
turns it off.
Let the driver fix the clock rate if already active because we do not
know the previous timebase value. To avoid unintentional resetting we
temporarily set it to its maximum value.
Then keep the enable bit if is was previously active.
Signed-off-by: Philippe Boos <pboos@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220801092150.4449-1-pboos@baylibre.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Sergiu Moga [Thu, 14 Jul 2022 12:51:24 +0000 (15:51 +0300)]
watchdog: dt-bindings: atmel,at91sam9-wdt: convert to json-schema
Convert at91sam9 WDT binding for Atmel/Microchip SoCs to json-schema
format.
Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220714125122.144377-1-sergiu.moga@microchip.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Pali Rohár [Tue, 26 Jul 2022 08:56:12 +0000 (10:56 +0200)]
watchdog: armada_37xx_wdt: Fix .set_timeout callback
ioctl(WDIOC_SETTIMEOUT) calls .set_timeout and .ping callbacks and it is
expected that it changes current watchdog timeout.
armada_37xx_wdt's .ping callback just reping counter 0 and does not touch
counter 1 used for timeout. So it is needed to set counter 1 to the new
value in .set_timeout callback to ensure ioctl(WDIOC_SETTIMEOUT)
functionality. Fix it.
Fixes:
54e3d9b518c8 ("watchdog: Add support for Armada 37xx CPU watchdog")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20220726085612.10672-1-pali@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
sunliming [Fri, 26 Aug 2022 08:52:43 +0000 (16:52 +0800)]
watchdog: sa1100: make variable sa1100dog_driver static
This symbol is not used outside of sa1100_wdt.c, so marks it static.
Fixes the following warning:
>> drivers/watchdog/sa1100_wdt.c:241:24: sparse: sparse: symbol 'sa1100dog_driver'
was not declared. Should it be static?
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220802020819.1226454-1-sunliming@kylinos.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Jason Wang [Tue, 2 Aug 2022 20:11:09 +0000 (04:11 +0800)]
watchdog: w83977f_wdt: Fix comment typo
The double `we' is duplicated in the comment, remove one.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220802201109.6843-1-wangborong@cdjrlc.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
shaomin Deng [Mon, 8 Aug 2022 15:39:56 +0000 (11:39 -0400)]
watchdog: eurotechwdt: Remove redundant word in comments
There is a rebundant word "we" in comments, so remove it.
Signed-off-by: shaomin Deng <dengshaomin@cdjrlc.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220808153956.8374-1-dengshaomin@cdjrlc.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Bo Liu [Tue, 20 Sep 2022 02:03:12 +0000 (22:03 -0400)]
watchdog: Check dev_set_name() return value
It's possible that dev_set_name() returns -ENOMEM, catch and handle this.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220920020312.2383-1-liubo03@inspur.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Phil Edworthy [Tue, 23 Aug 2022 09:32:33 +0000 (10:32 +0100)]
watchdog: rzg2l_wdt: Add rzv2m support
The WDT on RZ/V2M devices is basically the same as RZ/G2L, but without
the parity error registers. This means the driver has to reset the
hardware plus set the minimum timeout in order to do a restart and has
a single interrupt.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220823093233.8577-3-phil.edworthy@renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Phil Edworthy [Tue, 23 Aug 2022 09:32:32 +0000 (10:32 +0100)]
dt-bindings: watchdog: renesas,wdt: Add r9a09g011 (RZ/V2M) support
Add the documentation for the r9a09g011 SoC, but in doing so also
reorganise the doc to make it easier to read.
Additionally, make the binding require an interrupt to be specified.
Whilst the driver does not need an interrupt, all of the SoCs that use
this binding actually provide one.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220823093233.8577-2-phil.edworthy@renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Dan Carpenter [Thu, 11 Aug 2022 10:56:06 +0000 (13:56 +0300)]
watchdog: ftwdt010_wdt: fix test for platform_get_irq() failure
This code assumes that platform_get_irq() function returns zero on
failure. In fact, platform_get_irq() never returns zero. It returns
negative error codes or positive non-zero values on success.
Fixes:
eca10ae6000d ("watchdog: add driver for Cortina Gemini watchdog")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/YvTgRk/ABp62/hNA@kili
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Thanh Quan [Fri, 9 Sep 2022 09:08:11 +0000 (11:08 +0200)]
dt-bindings: watchdog: renesas-wdt: Add r8a779g0 support
Document support for the Watchdog Timer (WDT) Controller in the Renesas
R-Car V4H (R8A779G0) SoC.
Signed-off-by: Thanh Quan <thanh.quan.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/e3a246be066d5e9c2231285bc1488fc12866cf5d.1662714387.git.geert+renesas@glider.be
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
David Müller [Wed, 14 Sep 2022 09:46:05 +0000 (11:46 +0200)]
watchdog: Exar/MaxLinear XR28V38x driver
Simple driver for the watchdog present in some Exar/MaxLinear UART chips.
Please see https://www.maxlinear.com/product/interface/uarts/lpc-uarts/xr28v384
for more info.
Signed-off-by: David Müller <d.mueller@elsoft.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220914094605.93377-1-d.mueller@elsoft.ch
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Sergei Antonov [Mon, 29 Aug 2022 09:04:36 +0000 (12:04 +0300)]
watchdog: ftwdt010_wdt: implement _restart() function
Implement ftwdt010_wdt_restart(). It enables watchdog with timeout = 0
and disabled IRQ. Since it needs code similar to ftwdt010_wdt_start(),
add a new function ftwdt010_enable() and move common code there.
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220829090436.452742-1-saproj@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Henning Schild [Wed, 24 Aug 2022 15:24:48 +0000 (17:24 +0200)]
watchdog: w83627hf_wdt: add bootstatus support
The status bit in the status and control register can tell us whether
the last reboot was caused by the watchdog. Make sure to take that into
the bootstatus before clearing it.
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220824152448.7736-1-henning.schild@siemens.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Srinivas Neeli [Thu, 18 Aug 2022 15:06:37 +0000 (20:36 +0530)]
dt-bindings: watchdog: Convert Xilinx watchdog bindings to json-schema
Convert Xilinx watchdog bindings to DT schema format using json-schema
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220818150637.815-1-srinivas.neeli@xilinx.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Chin-Ting Kuo [Fri, 19 Aug 2022 09:49:05 +0000 (17:49 +0800)]
watchdog: aspeed_wdt: Reorder output signal register configuration
If the output driving type is push-pull mode, the output
polarity should be selected in advance. Otherwise, an unexpected
value will be output at the moment of changing to push-pull mode.
Thus, output polarity, WDT18[31], must be configured before
changing driving type, WDT18[30].
Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Bonnie Lo <Bonnie_Lo@wiwynn.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20220819094905.1962513-1-chin-ting_kuo@aspeedtech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Jerry Hoemann [Sat, 20 Aug 2022 20:28:21 +0000 (14:28 -0600)]
watchdog/hpwdt: Enable HP_WATCHDOG for ARM64 systems.
Enable HP_WATCHDOG for ARM64 systems.
HPWDT_NMI_DECODING requires X86 as NMI handlers are X86 specific.
Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220820202821.1263837-3-jerry.hoemann@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Jerry Hoemann [Sat, 20 Aug 2022 20:28:20 +0000 (14:28 -0600)]
watchdog/hpwdt: Include nmi.h only if CONFIG_HPWDT_NMI_DECODING
Fixes:
d48b0e173715 ("x86, nmi, drivers: Fix nmi splitup build bug")
Arm64 does not support NMI and has no <asm/nmi.h>.
Include <asm/nmi.h> only if CONFIG_HPWDT_NMI_DECODING is defined to
avoid build failure on non-existent header file on Arm64.
Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220820202821.1263837-2-jerry.hoemann@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Jean Delvare [Tue, 23 Aug 2022 13:47:13 +0000 (15:47 +0200)]
watchdog: wdat_wdt: Set the min and max timeout values properly
The wdat_wdt driver is misusing the min_hw_heartbeat_ms field. This
field should only be used when the hardware watchdog device should not
be pinged more frequently than a specific period. The ACPI WDAT
"Minimum Count" field, on the other hand, specifies the minimum
timeout value that can be set. This corresponds to the min_timeout
field in Linux's watchdog infrastructure.
Setting min_hw_heartbeat_ms instead can cause pings to the hardware
to be delayed when there is no reason for that, eventually leading to
unexpected firing of the watchdog timer (and thus unexpected reboot).
Since commit
6d72c7ac9fbe ("watchdog: wdat_wdt: Using the existing
function to check parameter timeout"), min_timeout is being set too,
but to the arbitrary value of 1 second, which doesn't make sense and
allows setting timeout values lower that the ACPI WDAT "Minimum
Count" field.
I'm also changing max_hw_heartbeat_ms to max_timeout for symmetry,
although the use of this one isn't fundamentally wrong, but there is
also no reason to enable the software-driven ping mechanism for the
wdat_wdt driver.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes:
058dfc767008 ("ACPI / watchdog: Add support for WDAT hardware watchdog")
Fixes:
6d72c7ac9fbe ("watchdog: wdat_wdt: Using the existing function to check parameter timeout")
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Liu Xinpeng <liuxp11@chinatelecom.cn>
Link: https://lore.kernel.org/r/20220823154713.023ee771@endymion.delvare
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Dmitry Torokhov [Mon, 5 Sep 2022 06:31:02 +0000 (23:31 -0700)]
watchdog: bd9576_wdt: switch to using devm_fwnode_gpiod_get()
I would like to stop exporting OF-specific devm_gpiod_get_from_of_node()
so that gpiolib can be cleaned a bit, so let's switch to the generic
fwnode property API.
While at it, switch the rest of the calls to read properties in
bd9576_wdt_probe() to the generic device property API as well.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220903-gpiod_get_from_of_node-remove-v1-10-b29adfb27a6c@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Nobuhiro Iwamatsu [Wed, 25 May 2022 00:46:05 +0000 (09:46 +0900)]
dt-bindings: watchdog: toshiba,visconti-wdt: Update the common clock properties
The clock for this driver switched to the common clock controller driver.
Therefore, update common clock properties for watchdog in the binding document.
And this matched this example with the actual dts.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220525004605.2128727-1-nobuhiro1.iwamatsu@toshiba.co.jp
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Linus Torvalds [Sun, 28 Aug 2022 22:05:29 +0000 (15:05 -0700)]
Linux 6.0-rc3
Linus Torvalds [Sun, 28 Aug 2022 21:49:59 +0000 (14:49 -0700)]
Merge tag 'mm-hotfixes-stable-2022-08-28' of git://git./linux/kernel/git/akpm/mm
Pull more hotfixes from Andrew Morton:
"Seventeen hotfixes. Mostly memory management things.
Ten patches are cc:stable, addressing pre-6.0 issues"
* tag 'mm-hotfixes-stable-2022-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
.mailmap: update Luca Ceresoli's e-mail address
mm/mprotect: only reference swap pfn page if type match
squashfs: don't call kmalloc in decompressors
mm/damon/dbgfs: avoid duplicate context directory creation
mailmap: update email address for Colin King
asm-generic: sections: refactor memory_intersects
bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem
ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown
Revert "memcg: cleanup racy sum avoidance code"
mm/zsmalloc: do not attempt to free IS_ERR handle
binder_alloc: add missing mmap_lock calls when using the VMA
mm: re-allow pinning of zero pfns (again)
vmcoreinfo: add kallsyms_num_syms symbol
mailmap: update Guilherme G. Piccoli's email addresses
writeback: avoid use-after-free after removing device
shmem: update folio if shmem_replace_page() updates the page
mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
Linus Torvalds [Sun, 28 Aug 2022 21:36:27 +0000 (14:36 -0700)]
Merge tag 'bitmap-6.0-rc3' of github.com:/norov/linux
Pull bitmap fixes from Yury Norov:
"Fix the reported issues, and implements the suggested improvements,
for the version of the cpumask tests [1] that was merged with commit
c41e8866c28c ("lib/test: introduce cpumask KUnit test suite").
These changes include fixes for the tests, and better alignment with
the KUnit style guidelines"
* tag 'bitmap-6.0-rc3' of github.com:/norov/linux:
lib/cpumask_kunit: add tests file to MAINTAINERS
lib/cpumask_kunit: log mask contents
lib/test_cpumask: follow KUnit style guidelines
lib/test_cpumask: fix cpu_possible_mask last test
lib/test_cpumask: drop cpu_possible_mask full test
Luca Ceresoli [Fri, 26 Aug 2022 13:05:15 +0000 (15:05 +0200)]
.mailmap: update Luca Ceresoli's e-mail address
My Bootlin address is preferred from now on.
Link: https://lkml.kernel.org/r/20220826130515.3011951-1-luca.ceresoli@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Atish Patra <atishp@atishpatra.org>
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Peter Xu [Tue, 23 Aug 2022 22:11:38 +0000 (18:11 -0400)]
mm/mprotect: only reference swap pfn page if type match
Yu Zhao reported a bug after the commit "mm/swap: Add swp_offset_pfn() to
fetch PFN from swap entry" added a check in swp_offset_pfn() for swap type [1]:
kernel BUG at include/linux/swapops.h:117!
CPU: 46 PID: 5245 Comm: EventManager_De Tainted: G S O L 6.0.0-dbg-DEV #2
RIP: 0010:pfn_swap_entry_to_page+0x72/0xf0
Code: c6 48 8b 36 48 83 fe ff 74 53 48 01 d1 48 83 c1 08 48 8b 09 f6
c1 01 75 7b 66 90 48 89 c1 48 8b 09 f6 c1 01 74 74 5d c3 eb 9e <0f> 0b
48 ba ff ff ff ff 03 00 00 00 eb ae a9 ff 0f 00 00 75 13 48
RSP: 0018:
ffffa59e73fabb80 EFLAGS:
00010282
RAX:
00000000ffffffe8 RBX:
0c00000000000000 RCX:
ffffcd5440000000
RDX:
1ffffffffff7a80a RSI:
0000000000000000 RDI:
0c0000000000042b
RBP:
ffffa59e73fabb80 R08:
ffff9965ca6e8bb8 R09:
0000000000000000
R10:
ffffffffa5a2f62d R11:
0000030b372e9fff R12:
ffff997b79db5738
R13:
000000000000042b R14:
0c0000000000042b R15:
1ffffffffff7a80a
FS:
00007f549d1bb700(0000) GS:
ffff99d3cf680000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000440d035b3180 CR3:
0000002243176004 CR4:
00000000003706e0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000fffe0ff0 DR7:
0000000000000400
Call Trace:
<TASK>
change_pte_range+0x36e/0x880
change_p4d_range+0x2e8/0x670
change_protection_range+0x14e/0x2c0
mprotect_fixup+0x1ee/0x330
do_mprotect_pkey+0x34c/0x440
__x64_sys_mprotect+0x1d/0x30
It triggers because pfn_swap_entry_to_page() could be called upon e.g. a
genuine swap entry.
Fix it by only calling it when it's a write migration entry where the page*
is used.
[1] https://lore.kernel.org/lkml/CAOUHufaVC2Za-p8m0aiHw6YkheDcrO-C3wRGixwDS32VTS+k1w@mail.gmail.com/
Link: https://lkml.kernel.org/r/20220823221138.45602-1-peterx@redhat.com
Fixes:
6c287605fd56 ("mm: remember exclusively mapped anonymous pages with PG_anon_exclusive")
Signed-off-by: Peter Xu <peterx@redhat.com>
Reported-by: Yu Zhao <yuzhao@google.com>
Tested-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Phillip Lougher [Mon, 22 Aug 2022 21:54:30 +0000 (22:54 +0100)]
squashfs: don't call kmalloc in decompressors
The decompressors may be called while in an atomic section. So move the
kmalloc() out of this path, and into the "page actor" init function.
This fixes a regression introduced by commit
f268eedddf35 ("squashfs: extend "page actor" to handle missing pages")
Link: https://lkml.kernel.org/r/20220822215430.15933-1-phillip@squashfs.org.uk
Fixes:
f268eedddf35 ("squashfs: extend "page actor" to handle missing pages")
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Badari Pulavarty [Sun, 21 Aug 2022 18:08:53 +0000 (18:08 +0000)]
mm/damon/dbgfs: avoid duplicate context directory creation
When user tries to create a DAMON context via the DAMON debugfs interface
with a name of an already existing context, the context directory creation
fails but a new context is created and added in the internal data
structure, due to absence of the directory creation success check. As a
result, memory could leak and DAMON cannot be turned on. An example test
case is as below:
# cd /sys/kernel/debug/damon/
# echo "off" > monitor_on
# echo paddr > target_ids
# echo "abc" > mk_context
# echo "abc" > mk_context
# echo $$ > abc/target_ids
# echo "on" > monitor_on <<< fails
Return value of 'debugfs_create_dir()' is expected to be ignored in
general, but this is an exceptional case as DAMON feature is depending
on the debugfs functionality and it has the potential duplicate name
issue. This commit therefore fixes the issue by checking the directory
creation failure and immediately return the error in the case.
Link: https://lkml.kernel.org/r/20220821180853.2400-1-sj@kernel.org
Fixes:
75c1c2b53c78 ("mm/damon/dbgfs: support multiple contexts")
Signed-off-by: Badari Pulavarty <badari.pulavarty@intel.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> [ 5.15.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Colin Ian King [Wed, 17 Aug 2022 21:27:53 +0000 (22:27 +0100)]
mailmap: update email address for Colin King
Colin King is working on kernel janitorial fixes in his spare time and
using his Intel email is confusing. Use his gmail account as the default
email address.
Link: https://lkml.kernel.org/r/20220817212753.101109-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Quanyang Wang [Fri, 19 Aug 2022 08:11:45 +0000 (16:11 +0800)]
asm-generic: sections: refactor memory_intersects
There are two problems with the current code of memory_intersects:
First, it doesn't check whether the region (begin, end) falls inside the
region (virt, vend), that is (virt < begin && vend > end).
The second problem is if vend is equal to begin, it will return true but
this is wrong since vend (virt + size) is not the last address of the
memory region but (virt + size -1) is. The wrong determination will
trigger the misreporting when the function check_for_illegal_area calls
memory_intersects to check if the dma region intersects with stext region.
The misreporting is as below (stext is at 0x80100000):
WARNING: CPU: 0 PID: 77 at kernel/dma/debug.c:1073 check_for_illegal_area+0x130/0x168
DMA-API: chipidea-usb2
e0002000.usb: device driver maps memory from kernel text or rodata [addr=
800f0000] [len=65536]
Modules linked in:
CPU: 1 PID: 77 Comm: usb-storage Not tainted 5.19.0-yocto-standard #5
Hardware name: Xilinx Zynq Platform
unwind_backtrace from show_stack+0x18/0x1c
show_stack from dump_stack_lvl+0x58/0x70
dump_stack_lvl from __warn+0xb0/0x198
__warn from warn_slowpath_fmt+0x80/0xb4
warn_slowpath_fmt from check_for_illegal_area+0x130/0x168
check_for_illegal_area from debug_dma_map_sg+0x94/0x368
debug_dma_map_sg from __dma_map_sg_attrs+0x114/0x128
__dma_map_sg_attrs from dma_map_sg_attrs+0x18/0x24
dma_map_sg_attrs from usb_hcd_map_urb_for_dma+0x250/0x3b4
usb_hcd_map_urb_for_dma from usb_hcd_submit_urb+0x194/0x214
usb_hcd_submit_urb from usb_sg_wait+0xa4/0x118
usb_sg_wait from usb_stor_bulk_transfer_sglist+0xa0/0xec
usb_stor_bulk_transfer_sglist from usb_stor_bulk_srb+0x38/0x70
usb_stor_bulk_srb from usb_stor_Bulk_transport+0x150/0x360
usb_stor_Bulk_transport from usb_stor_invoke_transport+0x38/0x440
usb_stor_invoke_transport from usb_stor_control_thread+0x1e0/0x238
usb_stor_control_thread from kthread+0xf8/0x104
kthread from ret_from_fork+0x14/0x2c
Refactor memory_intersects to fix the two problems above.
Before the
1d7db834a027e ("dma-debug: use memory_intersects()
directly"), memory_intersects is called only by printk_late_init:
printk_late_init -> init_section_intersects ->memory_intersects.
There were few places where memory_intersects was called.
When commit
1d7db834a027e ("dma-debug: use memory_intersects()
directly") was merged and CONFIG_DMA_API_DEBUG is enabled, the DMA
subsystem uses it to check for an illegal area and the calltrace above
is triggered.
[akpm@linux-foundation.org: fix nearby comment typo]
Link: https://lkml.kernel.org/r/20220819081145.948016-1-quanyang.wang@windriver.com
Fixes:
979559362516 ("asm/sections: add helpers to check for section data")
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thierry Reding <treding@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Liu Shixin [Fri, 19 Aug 2022 09:40:05 +0000 (17:40 +0800)]
bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem
The vmemmap pages is marked by kmemleak when allocated from memblock.
Remove it from kmemleak when freeing the page. Otherwise, when we reuse
the page, kmemleak may report such an error and then stop working.
kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing)
kmemleak: Kernel memory leak detector disabled
kmemleak: Object 0xffff98fb6be00000 (size
335544320):
kmemleak: comm "swapper", pid 0, jiffies
4294892296
kmemleak: min_count = 0
kmemleak: count = 0
kmemleak: flags = 0x1
kmemleak: checksum = 0
kmemleak: backtrace:
Link: https://lkml.kernel.org/r/20220819094005.2928241-1-liushixin2@huawei.com
Fixes:
f41f2ed43ca5 (mm: hugetlb: free the vmemmap pages associated with each HugeTLB page)
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Heming Zhao [Mon, 15 Aug 2022 08:57:54 +0000 (16:57 +0800)]
ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown
After commit
0737e01de9c4 ("ocfs2: ocfs2_mount_volume does cleanup job
before return error"), any procedure after ocfs2_dlm_init() fails will
trigger crash when calling ocfs2_dlm_shutdown().
ie: On local mount mode, no dlm resource is initialized. If
ocfs2_mount_volume() fails in ocfs2_find_slot(), error handling will call
ocfs2_dlm_shutdown(), then does dlm resource cleanup job, which will
trigger kernel crash.
This solution should bypass uninitialized resources in
ocfs2_dlm_shutdown().
Link: https://lkml.kernel.org/r/20220815085754.20417-1-heming.zhao@suse.com
Fixes:
0737e01de9c4 ("ocfs2: ocfs2_mount_volume does cleanup job before return error")
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Shakeel Butt [Wed, 17 Aug 2022 17:21:39 +0000 (17:21 +0000)]
Revert "memcg: cleanup racy sum avoidance code"
This reverts commit
96e51ccf1af33e82f429a0d6baebba29c6448d0f.
Recently we started running the kernel with rstat infrastructure on
production traffic and begin to see negative memcg stats values.
Particularly the 'sock' stat is the one which we observed having negative
value.
$ grep "sock " /mnt/memory/job/memory.stat
sock 253952
total_sock
18446744073708724224
Re-run after couple of seconds
$ grep "sock " /mnt/memory/job/memory.stat
sock 253952
total_sock 53248
For now we are only seeing this issue on large machines (256 CPUs) and
only with 'sock' stat. I think the networking stack increase the stat on
one cpu and decrease it on another cpu much more often. So, this negative
sock is due to rstat flusher flushing the stats on the CPU that has seen
the decrement of sock but missed the CPU that has increments. A typical
race condition.
For easy stable backport, revert is the most simple solution. For long
term solution, I am thinking of two directions. First is just reduce the
race window by optimizing the rstat flusher. Second is if the reader sees
a negative stat value, force flush and restart the stat collection.
Basically retry but limited.
Link: https://lkml.kernel.org/r/20220817172139.3141101-1-shakeelb@google.com
Fixes:
96e51ccf1af33e8 ("memcg: cleanup racy sum avoidance code")
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Cc: "Michal Koutný" <mkoutny@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: <stable@vger.kernel.org> [5.15]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Sergey Senozhatsky [Tue, 16 Aug 2022 05:09:06 +0000 (14:09 +0900)]
mm/zsmalloc: do not attempt to free IS_ERR handle
zsmalloc() now returns ERR_PTR values as handles, which zram accidentally
can pass to zs_free(). Another bad scenario is when zcomp_compress()
fails - handle has default -ENOMEM value, and zs_free() will try to free
that "pointer value".
Add the missing check and make sure that zs_free() bails out when
ERR_PTR() is passed to it.
Link: https://lkml.kernel.org/r/20220816050906.2583956-1-senozhatsky@chromium.org
Fixes:
c7e6f17b52e9 ("zsmalloc: zs_malloc: return ERR_PTR on failure")
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>,
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Liam Howlett [Wed, 10 Aug 2022 16:02:25 +0000 (16:02 +0000)]
binder_alloc: add missing mmap_lock calls when using the VMA
Take the mmap_read_lock() when using the VMA in binder_alloc_print_pages()
and when checking for a VMA in binder_alloc_new_buf_locked().
It is worth noting binder_alloc_new_buf_locked() drops the VMA read lock
after it verifies a VMA exists, but may be taken again deeper in the call
stack, if necessary.
Link: https://lkml.kernel.org/r/20220810160209.1630707-1-Liam.Howlett@oracle.com
Fixes:
a43cfc87caaf (android: binder: stop saving a pointer to the VMA)
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Reported-by: <syzbot+a7b60a176ec13cafb793@syzkaller.appspotmail.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Tested-by: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Christian Brauner (Microsoft) <brauner@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hridya Valsaraju <hridya@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Martijn Coenen <maco@android.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Todd Kjos <tkjos@android.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: "Arve Hjønnevåg" <arve@android.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Alex Williamson [Wed, 10 Aug 2022 16:53:59 +0000 (10:53 -0600)]
mm: re-allow pinning of zero pfns (again)
The below referenced commit makes the same error as
1c563432588d ("mm: fix
is_pinnable_page against a cma page"), re-interpreting the logic to
exclude pinning of the zero page, which breaks device assignment with
vfio.
To avoid further subtle mistakes, split the logic into discrete tests.
[akpm@linux-foundation.org: simplify comment, per John]
Link: https://lkml.kernel.org/r/166015037385.760108.16881097713975517242.stgit@omen
Link: https://lore.kernel.org/all/165490039431.944052.12458624139225785964.stgit@omen
Fixes:
f25cbb7a95a2 ("mm: add zone device coherent type memory support")
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Tested-by: Slawomir Laba <slawomirx.laba@intel.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alistair Popple <apopple@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stephen Brennan [Mon, 8 Aug 2022 20:54:10 +0000 (13:54 -0700)]
vmcoreinfo: add kallsyms_num_syms symbol
The rest of the kallsyms symbols are useless without knowing the number of
symbols in the table. In an earlier patch, I somehow dropped the
kallsyms_num_syms symbol, so add it back in.
Link: https://lkml.kernel.org/r/20220808205410.18590-1-stephen.s.brennan@oracle.com
Fixes:
5fd8fea935a1 ("vmcoreinfo: include kallsyms symbols")
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Guilherme G. Piccoli [Thu, 4 Aug 2022 20:22:07 +0000 (17:22 -0300)]
mailmap: update Guilherme G. Piccoli's email addresses
Both @canonical and @ibm email addresses are invalid now; use my personal
address instead.
Link: https://lkml.kernel.org/r/20220804202207.439427-1-gpiccoli@igalia.com
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Khazhismel Kumykov [Mon, 1 Aug 2022 15:50:34 +0000 (08:50 -0700)]
writeback: avoid use-after-free after removing device
When a disk is removed, bdi_unregister gets called to stop further
writeback and wait for associated delayed work to complete. However,
wb_inode_writeback_end() may schedule bandwidth estimation dwork after
this has completed, which can result in the timer attempting to access the
just freed bdi_writeback.
Fix this by checking if the bdi_writeback is alive, similar to when
scheduling writeback work.
Since this requires wb->work_lock, and wb_inode_writeback_end() may get
called from interrupt, switch wb->work_lock to an irqsafe lock.
Link: https://lkml.kernel.org/r/20220801155034.3772543-1-khazhy@google.com
Fixes:
45a2966fd641 ("writeback: fix bandwidth estimate for spiky workload")
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Michael Stapelberg <stapelberg+linux@google.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Matthew Wilcox (Oracle) [Sat, 30 Jul 2022 04:25:18 +0000 (05:25 +0100)]
shmem: update folio if shmem_replace_page() updates the page
If we allocate a new page, we need to make sure that our folio matches
that new page.
If we do end up in this code path, we store the wrong page in the shmem
inode's page cache, and I would rather imagine that data corruption
ensues.
This will be solved by changing shmem_replace_page() to
shmem_replace_folio(), but this is the minimal fix.
Link: https://lkml.kernel.org/r/20220730042518.1264767-1-willy@infradead.org
Fixes:
da08e9b79323 ("mm/shmem: convert shmem_swapin_page() to shmem_swapin_folio()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Miaohe Lin [Tue, 12 Jul 2022 13:05:42 +0000 (21:05 +0800)]
mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
In MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page
cache are installed in the ptes. But hugepage_add_new_anon_rmap is called
for them mistakenly because they're not vm_shared. This will corrupt the
page->mapping used by page cache code.
Link: https://lkml.kernel.org/r/20220712130542.18836-1-linmiaohe@huawei.com
Fixes:
f619147104c8 ("userfaultfd: add UFFDIO_CONTINUE ioctl")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linus Torvalds [Sun, 28 Aug 2022 17:44:04 +0000 (10:44 -0700)]
Merge tag 'for-6.0-rc3-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Fixes:
- check that subvolume is writable when changing xattrs from security
namespace
- fix memory leak in device lookup helper
- update generation of hole file extent item when merging holes
- fix space cache corruption and potential double allocations; this
is a rare bug but can be serious once it happens, stable backports
and analysis tool will be provided
- fix error handling when deleting root references
- fix crash due to assert when attempting to cancel suspended device
replace, add message what to do if mount fails due to missing
replace item
Regressions:
- don't merge pages into bio if their page offset is not contiguous
- don't allow large NOWAIT direct reads, this could lead to short
reads eg. in io_uring"
* tag 'for-6.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: add info when mount fails due to stale replace target
btrfs: replace: drop assert for suspended replace
btrfs: fix silent failure when deleting root reference
btrfs: fix space cache corruption and potential double allocations
btrfs: don't allow large NOWAIT direct reads
btrfs: don't merge pages into bio if their page offset is not contiguous
btrfs: update generation of hole file extent item when merging holes
btrfs: fix possible memory leak in btrfs_get_dev_args_from_path()
btrfs: check if root is readonly while setting security xattr
Linus Torvalds [Sun, 28 Aug 2022 17:35:16 +0000 (10:35 -0700)]
Merge tag '6.0-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cfis fixes from Steve French:
- two locking fixes (zero range, punch hole)
- DFS 9 fix (padding), affecting some servers
- three minor cleanup changes
* tag '6.0-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Add helper function to check smb1+ server
cifs: Use help macro to get the mid header size
cifs: Use help macro to get the header preamble size
cifs: skip extra NULL byte in filenames
smb3: missing inode locks in punch hole
smb3: missing inode locks in zero range
Linus Torvalds [Sun, 28 Aug 2022 17:10:23 +0000 (10:10 -0700)]
Merge tag 'x86-urgent-2022-08-28' of git://git./linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
- Fix PAT on Xen, which caused i915 driver failures
- Fix compat INT 80 entry crash on Xen PV guests
- Fix 'MMIO Stale Data' mitigation status reporting on older Intel CPUs
- Fix RSB stuffing regressions
- Fix ORC unwinding on ftrace trampolines
- Add Intel Raptor Lake CPU model number
- Fix (work around) a SEV-SNP bootloader bug providing bogus values in
boot_params->cc_blob_address, by ignoring the value on !SEV-SNP
bootups.
- Fix SEV-SNP early boot failure
- Fix the objtool list of noreturn functions and annotate snp_abort(),
which bug confused objtool on gcc-12.
- Fix the documentation for retbleed
* tag 'x86-urgent-2022-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation/ABI: Mention retbleed vulnerability info file for sysfs
x86/sev: Mark snp_abort() noreturn
x86/sev: Don't use cc_platform_has() for early SEV-SNP calls
x86/boot: Don't propagate uninitialized boot_params->cc_blob_address
x86/cpu: Add new Raptor Lake CPU model number
x86/unwind/orc: Unwind ftrace trampolines with correct ORC entry
x86/nospec: Fix i386 RSB stuffing
x86/nospec: Unwreck the RSB stuffing
x86/bugs: Add "unknown" reporting for MMIO Stale Data
x86/entry: Fix entry_INT80_compat for Xen PV guests
x86/PAT: Have pat_enabled() properly reflect state when running on Xen
Linus Torvalds [Sun, 28 Aug 2022 17:05:42 +0000 (10:05 -0700)]
Merge tag 'perf-urgent-2022-08-28' of git://git./linux/kernel/git/tip/tip
Pull x86 perf fixes from Ingo Molnar:
"Misc fixes: an Arch-LBR fix, a PEBS enumeration fix, an Intel DS fix,
PEBS constraints fix on Alder Lake CPUs and an Intel uncore PMU fix"
* tag 'perf-urgent-2022-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Fix broken read_counter() for SNB IMC PMU
perf/x86/intel: Fix pebs event constraints for ADL
perf/x86/intel/ds: Fix precise store latency handling
perf/x86/core: Set pebs_capable and PMU_FL_PEBS_ALL for the Baseline
perf/x86/lbr: Enable the branch type for the Arch LBR by default
Linus Torvalds [Sun, 28 Aug 2022 16:58:00 +0000 (09:58 -0700)]
Merge tag 'perf-tools-fixes-for-v6.0-2022-08-27' of git://git./linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fixup setup of weak groups when using 'perf stat --repeat', add a
'perf test' for it.
- Fix memory leaks in 'perf sched record' detected with
-fsanitize=address.
- Fix build when PYTHON_CONFIG is user supplied.
- Capitalize topdown metrics' names in 'perf stat', so that the output,
sometimes parsed, matches the Intel SDM docs.
- Make sure the documentation for the save_type filter about Intel
systems with Arch LBR support (12th-Gen+ client or 4th-Gen Xeon+
server) reflects recent related kernel changes.
- Fix 'perf record' man page formatting of description of support to
hybrid systems.
- Update arm64´s KVM header from the kernel sources.
* tag 'perf-tools-fixes-for-v6.0-2022-08-27' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf stat: Capitalize topdown metrics' names
perf docs: Update the documentation for the save_type filter
perf sched: Fix memory leaks in __cmd_record detected with -fsanitize=address
perf record: Fix manpage formatting of description of support to hybrid systems
perf test: Stat test for repeat with a weak group
perf stat: Clear evsel->reset_group for each stat run
tools kvm headers arm64: Update KVM header from the kernel sources
perf python: Fix build when PYTHON_CONFIG is user supplied
Linus Torvalds [Sat, 27 Aug 2022 22:58:38 +0000 (15:58 -0700)]
Merge tag 'thermal-6.0-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Fix two issues introduced recently and one driver problem leading to a
NULL pointer dereference in some cases.
Specifics:
- Add missing EXPORT_SYMBOL_GPL in the thermal core and add back the
required 'trips' property to the thermal zone DT bindings (Daniel
Lezcano)
- Prevent the int340x_thermal driver from crashing when a package
with a buffer of 0 length is returned by an ACPI control method
evaluated by it (Lee, Chun-Yi)"
* tag 'thermal-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR
dt-bindings: thermal: Fix missing required property
thermal/core: Add missing EXPORT_SYMBOL_GPL
Linus Torvalds [Sat, 27 Aug 2022 22:53:49 +0000 (15:53 -0700)]
Merge tag 'pm-6.0-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Make __resolve_freq() check the presence of the frequency table
instead of checking whether or not the ->target_index() callback is
implemented by the driver, because that need not be the case when
__resolve_freq() is used (Lukasz Luba)"
* tag 'pm-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: check only freq_table in __resolve_freq()
Linus Torvalds [Sat, 27 Aug 2022 22:47:02 +0000 (15:47 -0700)]
Merge tag 'acpi-6.0-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix issues introduced by recent changes related to the handling
of ACPI device properties and a coding mistake in the exit path of the
ACPI processor driver.
Specifics:
- Prevent acpi_thermal_cpufreq_exit() from attempting to remove
the same frequency QoS request multiple times (Riwen Lu)
- Fix type detection for integer ACPI device properties (Stefan
Binding)
- Avoid emitting false-positive warnings when processing ACPI
device properties and drop the useless default case from the
acpi_copy_property_array_uint() macro (Sakari Ailus)"
* tag 'acpi-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: property: Remove default association from integer maximum values
ACPI: property: Ignore already existing data node tags
ACPI: property: Fix type detection of unified integer reading functions
ACPI: processor: Remove freq Qos request for all CPUs
Linus Torvalds [Sat, 27 Aug 2022 22:40:51 +0000 (15:40 -0700)]
Merge tag 's390-6.0-2' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix double free of guarded storage and runtime instrumentation
control blocks on fork() failure
- Fix triggering write fault when VMA does not allow VM_WRITE
* tag 's390-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/mm: do not trigger write fault when vma does not allow VM_WRITE
s390: fix double free of GS and RI CBs on fork() failure
Linus Torvalds [Sat, 27 Aug 2022 22:38:00 +0000 (15:38 -0700)]
Merge tag 'for-linus-6.0-rc3-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- two minor cleanups
- a fix of the xen/privcmd driver avoiding a possible NULL dereference
in an error case
* tag 'for-linus-6.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/privcmd: fix error exit of privcmd_ioctl_dm_op()
xen: move from strlcpy with unused retval to strscpy
xen: x86: remove setting the obsolete config XEN_MAX_DOMAIN_MEMORY
Linus Torvalds [Sat, 27 Aug 2022 22:31:12 +0000 (15:31 -0700)]
Merge tag 'audit-pr-
20220826' of git://git./linux/kernel/git/pcmoore/audit
Pull audit fix from Paul Moore:
"Another small audit patch, this time to fix a bug where the return
codes were not properly set before the audit filters were run,
potentially resulting in missed audit records"
* tag 'audit-pr-
20220826' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: move audit_return_fixup before the filters
Linus Torvalds [Sat, 27 Aug 2022 16:57:58 +0000 (09:57 -0700)]
Merge tag 'fbdev-for-6.0-rc3' of git://git./linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes and updates from Helge Deller:
"Mostly just small patches, with the exception of the bigger indenting
cleanups in the sisfb and radeonfb drivers.
Two patches should be mentioned though: A fix-up for fbdev if the
screen resize fails (by Shigeru Yoshida), and a potential divide by
zero fix in fb_pm2fb (by Letu Ren).
Summary:
Major fixes:
- Revert the changes for fbcon console when vc_resize() fails
[Shigeru Yoshida]
- Avoid a potential divide by zero error in fb_pm2fb [Letu Ren]
Minor fixes:
- Add missing pci_disable_device() in chipsfb_pci_init() [Yang
Yingliang]
- Fix tests for platform_get_irq() failure in omapfb [Yu Zhe]
- Destroy mutex on freeing struct fb_info in fbsysfs [Shigeru
Yoshida]
Cleanups:
- Move fbdev drivers from strlcpy to strscpy [Wolfram Sang]
- Indenting fixes, comment fixes, ... [Jiapeng Chong & Jilin Yuan]"
* tag 'fbdev-for-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: fbcon: Properly revert changes when vc_resize() failed
fbdev: Move fbdev drivers from strlcpy to strscpy
fbdev: omap: Remove unnecessary print function dev_err()
fbdev: chipsfb: Add missing pci_disable_device() in chipsfb_pci_init()
fbdev: fbcon: Destroy mutex on freeing struct fb_info
fbdev: radeon: Clean up some inconsistent indenting
fbdev: sisfb: Clean up some inconsistent indenting
fbdev: fb_pm2fb: Avoid potential divide by zero error
fbdev: ssd1307fb: Fix repeated words in comments
fbdev: omapfb: Fix tests for platform_get_irq() failure
Mikulas Patocka [Fri, 26 Aug 2022 20:43:51 +0000 (16:43 -0400)]
provide arch_test_bit_acquire for architectures that define test_bit
Some architectures define their own arch_test_bit and they also need
arch_test_bit_acquire, otherwise they won't compile. We also clean up
the code by using the generic test_bit if that is equivalent to the
arch-specific version.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Fixes:
8238b4579866 ("wait_on_bit: add an acquire memory barrier")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Zhengjun Xing [Thu, 25 Aug 2022 01:54:58 +0000 (09:54 +0800)]
perf stat: Capitalize topdown metrics' names
Capitalize topdown metrics' names to follow the intel SDM.
Before:
# ./perf stat -a sleep 1
Performance counter stats for 'system wide':
228,094.05 msec cpu-clock # 225.026 CPUs utilized
842 context-switches # 3.691 /sec
224 cpu-migrations # 0.982 /sec
70 page-faults # 0.307 /sec
23,164,105 cycles # 0.000 GHz
29,403,446 instructions # 1.27 insn per cycle
5,268,185 branches # 23.097 K/sec
33,239 branch-misses # 0.63% of all branches
136,248,990 slots # 597.337 K/sec
32,976,450 topdown-retiring # 24.2% retiring
4,651,918 topdown-bad-spec # 3.4% bad speculation
26,148,695 topdown-fe-bound # 19.2% frontend bound
72,515,776 topdown-be-bound # 53.2% backend bound
6,008,540 topdown-heavy-ops # 4.4% heavy operations # 19.8% light operations
3,934,049 topdown-br-mispredict # 2.9% branch mispredict # 0.5% machine clears
16,655,439 topdown-fetch-lat # 12.2% fetch latency # 7.0% fetch bandwidth
41,635,972 topdown-mem-bound # 30.5% memory bound # 22.7% Core bound
1.
013634593 seconds time elapsed
After:
# ./perf stat -a sleep 1
Performance counter stats for 'system wide':
228,081.94 msec cpu-clock # 225.003 CPUs utilized
824 context-switches # 3.613 /sec
224 cpu-migrations # 0.982 /sec
67 page-faults # 0.294 /sec
22,647,423 cycles # 0.000 GHz
28,870,551 instructions # 1.27 insn per cycle
5,167,099 branches # 22.655 K/sec
32,383 branch-misses # 0.63% of all branches
133,411,074 slots # 584.926 K/sec
32,352,607 topdown-retiring # 24.3% Retiring
4,456,977 topdown-bad-spec # 3.3% Bad Speculation
25,626,487 topdown-fe-bound # 19.2% Frontend Bound
70,955,316 topdown-be-bound # 53.2% Backend Bound
5,834,844 topdown-heavy-ops # 4.4% Heavy Operations # 19.9% Light Operations
3,738,781 topdown-br-mispredict # 2.8% Branch Mispredict # 0.5% Machine Clears
16,286,803 topdown-fetch-lat # 12.2% Fetch Latency # 7.0% Fetch Bandwidth
40,802,069 topdown-mem-bound # 30.6% Memory Bound # 22.6% Core Bound
1.
013683125 seconds time elapsed
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220825015458.3252239-1-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Kan Liang [Tue, 16 Aug 2022 12:56:12 +0000 (05:56 -0700)]
perf docs: Update the documentation for the save_type filter
Update the documentation to reflect the kernel changes.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220816125612.2042397-2-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Wed, 24 Aug 2022 14:57:33 +0000 (07:57 -0700)]
perf sched: Fix memory leaks in __cmd_record detected with -fsanitize=address
An array of strings is passed to cmd_record but not freed. As
cmd_record modifies the array, add another array as a copy that can be
mutated allowing the original array contents to all be freed.
Detected with -fsanitize=address.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220824145733.409005-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Andi Kleen [Thu, 18 Aug 2022 10:01:27 +0000 (03:01 -0700)]
perf record: Fix manpage formatting of description of support to hybrid systems
The Intel hybrid description is written in a different style than the
rest of the perf record man page. There were some new command line
options added after it which resulted in very strange section ordering.
Move the hybrid include last.
Also the sub sections in the hybrid document don't fit the record
manpage well (especially since it talks about all kinds of unrelated
commands). I left this for now, but would be better to separate this
properly in the different man pages.
It would be better to use sub sections for the other sections, but these
don't seem to be supported in AsciiDoc?
Some of the examples are still misrendered in the manpage with an
indented troff command, but I don't know how to fix that.
In any case it's now better than before.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220818100127.249401-1-ak@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Mon, 22 Aug 2022 21:33:52 +0000 (14:33 -0700)]
perf test: Stat test for repeat with a weak group
Breaking a weak group requires multiple passes of an evlist, with
multiple runs this can introduce bugs ultimately leading to
segfaults. Add a test to cover this.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220822213352.75721-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Mon, 22 Aug 2022 21:33:51 +0000 (14:33 -0700)]
perf stat: Clear evsel->reset_group for each stat run
If a weak group is broken then the reset_group flag remains set for
the next run. Having reset_group set means the counter isn't created
and ultimately a segfault.
A simple reproduction of this is:
# perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W
which will be added as a test in the next patch.
Fixes:
4804e0111662d7d8 ("perf stat: Use affinity for opening events")
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220822213352.75721-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 15:53:44 +0000 (12:53 -0300)]
tools kvm headers arm64: Update KVM header from the kernel sources
To pick the changes from:
ae3b1da95413614f ("KVM: arm64: Fix compile error due to sign extension")
That doesn't result in any changes in tooling (when built on x86), only
addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/all/YwOMCCc4E79FuvDe@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Thu, 28 Jul 2022 09:39:46 +0000 (10:39 +0100)]
perf python: Fix build when PYTHON_CONFIG is user supplied
The previous change to Python autodetection had a small mistake where
the auto value was used to determine the Python binary, rather than the
user supplied value. The Python binary is only used for one part of the
build process, rather than the final linking, so it was producing
correct builds in most scenarios, especially when the auto detected
value matched what the user wanted, or the system only had a valid set
of Pythons.
Change it so that the Python binary path is derived from either the
PYTHON_CONFIG value or PYTHON value, depending on what is specified by
the user. This was the original intention.
This error was spotted in a build failure an odd cross compilation
environment after commit
4c41cb46a732fe82 ("perf python: Prefer
python3") was merged.
Fixes:
630af16eee495f58 ("perf tools: Use Python devtools for version autodetection rather than runtime")
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220728093946.1337642-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Rafael J. Wysocki [Sat, 27 Aug 2022 13:07:58 +0000 (15:07 +0200)]
Merge branch 'thermal-core'
Merge thermal control core fixes for 6.0-rc3:
- Fix missing required property for thermal zone description (Daniel
Lezcano).
- Add missing export symbol for
thermal_zone_device_register_with_trips() (Daniel Lezcano).
* thermal-core:
dt-bindings: thermal: Fix missing required property
thermal/core: Add missing EXPORT_SYMBOL_GPL
Rafael J. Wysocki [Sat, 27 Aug 2022 12:43:18 +0000 (14:43 +0200)]
Merge branch 'acpi-processor' into acpi
* acpi-processor:
ACPI: processor: Remove freq Qos request for all CPUs
Stephane Eranian [Wed, 3 Aug 2022 16:00:31 +0000 (09:00 -0700)]
perf/x86/intel/uncore: Fix broken read_counter() for SNB IMC PMU
Existing code was generating bogus counts for the SNB IMC bandwidth counters:
$ perf stat -a -I 1000 -e uncore_imc/data_reads/,uncore_imc/data_writes/
1.
000327813 1,024.03 MiB uncore_imc/data_reads/
1.
000327813 20.73 MiB uncore_imc/data_writes/
2.
000580153 261,120.00 MiB uncore_imc/data_reads/
2.
000580153 23.28 MiB uncore_imc/data_writes/
The problem was introduced by commit:
07ce734dd8ad ("perf/x86/intel/uncore: Clean up client IMC")
Where the read_counter callback was replace to point to the generic
uncore_mmio_read_counter() function.
The SNB IMC counters are freerunnig 32-bit counters laid out contiguously in
MMIO. But uncore_mmio_read_counter() is using a readq() call to read from
MMIO therefore reading 64-bit from MMIO. Although this is okay for the
uncore_perf_event_update() function because it is shifting the value based
on the actual counter width to compute a delta, it is not okay for the
uncore_pmu_event_start() which is simply reading the counter and therefore
priming the event->prev_count with a bogus value which is responsible for
causing bogus deltas in the perf stat command above.
The fix is to reintroduce the custom callback for read_counter for the SNB
IMC PMU and use readl() instead of readq(). With the change the output of
perf stat is back to normal:
$ perf stat -a -I 1000 -e uncore_imc/data_reads/,uncore_imc/data_writes/
1.
000120987 296.94 MiB uncore_imc/data_reads/
1.
000120987 138.42 MiB uncore_imc/data_writes/
2.
000403144 175.91 MiB uncore_imc/data_reads/
2.
000403144 68.50 MiB uncore_imc/data_writes/
Fixes:
07ce734dd8ad ("perf/x86/intel/uncore: Clean up client IMC")
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20220803160031.1379788-1-eranian@google.com
Linus Torvalds [Fri, 26 Aug 2022 18:32:53 +0000 (11:32 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"A bumper crop of arm64 fixes for -rc3.
The largest change is fixing our parsing of the 'rodata=full' command
line option, which kstrtobool() started treating as 'rodata=false'.
The fix actually makes the parsing of that option much less fragile
and updates the documentation at the same time.
We still have a boot issue pending when KASLR is disabled at compile
time, but there's a fresh fix on the list which I'll send next week if
it holds up to testing.
Summary:
- Fix workaround for Cortex-A76 erratum #1286807
- Add workaround for AMU erratum #2457168 on Cortex-A510
- Drop reference to removed CONFIG_ARCH_RANDOM #define
- Fix parsing of the "rodata=full" cmdline option
- Fix a bunch of issues in the SME register state switching and sigframe code
- Fix incorrect extraction of the CTR_EL0.CWG register field
- Fix ACPI cache topology probing when the PPTT is not present
- Trivial comment and whitespace fixes"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/sme: Don't flush SVE register state when handling SME traps
arm64/sme: Don't flush SVE register state when allocating SME storage
arm64/signal: Flush FPSIMD register state when disabling streaming mode
arm64/signal: Raise limit on stack frames
arm64/cache: Fix cache_type_cwg() for register generation
arm64/sysreg: Guard SYS_FIELD_ macros for asm
arm64/sysreg: Directly include bitfield.h
arm64: cacheinfo: Fix incorrect assignment of signed error value to unsigned fw_level
arm64: errata: add detection for AMEVCNTR01 incrementing incorrectly
arm64: fix rodata=full
arm64: Fix comment typo
docs/arm64: elf_hwcaps: unify newlines in HWCAP lists
arm64: adjust KASLR relocation after ARCH_RANDOM removal
arm64: Fix match_list for erratum 1286807 on Arm Cortex-A76
Linus Torvalds [Fri, 26 Aug 2022 18:26:27 +0000 (11:26 -0700)]
Merge tag 'riscv-for-linus-6.0-rc3' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A handful of fixes for the Microchip device trees
- A pair of fixes to eliminate build warnings
* tag 'riscv-for-linus-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: dts: microchip: mpfs: remove pci axi address translation property
riscv: dts: microchip: mpfs: remove bogus card-detect-delay
riscv: dts: microchip: mpfs: remove ti,fifo-depth property
riscv: dts: microchip: mpfs: fix incorrect pcie child node name
riscv: traps: add missing prototype
riscv: signal: fix missing prototype warning
riscv: dts: microchip: correct L2 cache interrupts
Linus Torvalds [Fri, 26 Aug 2022 18:21:18 +0000 (11:21 -0700)]
Merge tag 'loongarch-fixes-6.0-1' of git://git./linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix a bunch of build errors/warnings, a poweroff error and an
unbalanced locking in do_page_fault()"
* tag 'loongarch-fixes-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: mm: Avoid unnecessary page fault retires on shared memory types
LoongArch: Add subword xchg/cmpxchg emulation
LoongArch: Cleanup headers to avoid circular dependency
LoongArch: Cleanup reset routines with new API
LoongArch: Fix build warnings in VDSO
LoongArch: Select PCI_QUIRKS to avoid build error
Linus Torvalds [Fri, 26 Aug 2022 18:15:37 +0000 (11:15 -0700)]
Merge tag 'drm-fixes-2022-08-26-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Weekly fixes, lots of amdgpu fixes mostly for IP blocks introduced in
6.0-rc1, otherwise vc4, nouveau fixes.
gem:
- Fix handle release leak
nouveau:
- Fix fencing when moving BO
vc4:
- HDMI fixes
amdgpu:
- GFX 11.0 fixes
- PSP XGMI handling fixes
- GFX9 fix for compute-only IPs
- Drop duplicated function call
- Fix warning due to missing header
- NBIO 7.7 fixes
- DCN 3.1.4 fixes
- SDMA 6.0 fixes
- SMU 13.0 fixes
- Arcturus GPUVM page table fix
- MMHUB 1.0 fix
amdkfd:
- GC 10.3.7 fix
radeon:
- Delayed work flush fix"
* tag 'drm-fixes-2022-08-26-1' of git://anongit.freedesktop.org/drm/drm: (21 commits)
drm/amdgpu: mmVM_L2_CNTL3 register not initialized correctly
drm/amdgpu: add MGCG perfmon setting for gfx11
drm/amdkfd: Fix isa version for the GC 10.3.7
drm/amdgpu: Fix page table setup on Arcturus
drm/amd/pm: update SMU 13.0.0 driver_if header
drm/amdgpu: add sdma instance check for gfx11 CGCG
drm/amd/display: enable PCON support for dcn314
drm/amdgpu: enable NBIO IP v7.7.0 Clock Gating
drm/amdgpu: add NBIO IP v7.7.0 Clock Gating support
drm/amdgpu: add TX_POWER_CTRL_1 macro definitions for NBIO IP v7.7.0
nouveau: explicitly wait on the fence in nouveau_bo_move_m2mf
drm/radeon: add a force flush to delay work when radeon
drm/amd/display: Include missing header
drm/amdgpu: Remove the additional kfd pre reset call for sriov
drm/amdgpu: Check num_gfx_rings for gfx v9_0 rb setup.
drm/amdgpu: fix hive reference leak when adding xgmi device
drm/amdgpu: Move psp_xgmi_terminate call from amdgpu_xgmi_remove_device to psp_hw_fini
drm/amdgpu: enable GFXOFF allow control for GC IP v11.0.1
drm/gem: Fix GEM handle release errors
drm/vc4: hdmi: Rework power up
...
Linus Torvalds [Fri, 26 Aug 2022 18:05:54 +0000 (11:05 -0700)]
Merge tag 'block-6.0-2022-08-26' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- MD pull request via Song:
- Fix for clustered raid (Guoqing Jiang)
- req_op fix (Bart Van Assche)
- Fix race condition in raid recreate (David Sloan)
- loop configuration overflow fix (Siddh)
- Fix missing commit_rqs call for certain conditions (Yu)
* tag 'block-6.0-2022-08-26' of git://git.kernel.dk/linux-block:
md: call __md_stop_writes in md_stop
Revert "md-raid: destroy the bitmap after destroying the thread"
md: Flush workqueue md_rdev_misc_wq in md_alloc()
md/raid10: Fix the data type of an r10_sync_page_io() argument
loop: Check for overflow while configuring loop
blk-mq: fix io hung due to missing commit_rqs
Linus Torvalds [Fri, 26 Aug 2022 18:01:52 +0000 (11:01 -0700)]
Merge tag 'io_uring-6.0-2022-08-26' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- Add missing header file to the MAINTAINERS entry for io_uring (Ammar)
- liburing and the kernel ship the same io_uring.h header, but one
change we've had for a long time only in liburing is to ensure it's
C++ safe. Add extern C around it, so we can more easily sync them in
the future (Ammar)
- Fix an off-by-one in the sync cancel added in this merge window (me)
- Error handling fix for passthrough (Kanchan)
- Fix for address saving for async execution for the zc tx support
(Pavel)
- Fix ordering for TCP zc notifications, so we always have them ordered
correctly between "data was sent" and "data was acked". This isn't
strictly needed with the notification slots, but we've been pondering
disabling the slot support for 6.0 - and if we do, then we do require
the ordering to be sane. Regardless of that, it's the sane thing to
do in terms of API (Pavel)
- Minor cleanup for indentation and lockdep annotation (Pavel)
* tag 'io_uring-6.0-2022-08-26' of git://git.kernel.dk/linux-block:
io_uring/net: save address for sendzc async execution
io_uring: conditional ->async_data allocation
io_uring/notif: order notif vs send CQEs
io_uring/net: fix indentation
io_uring/net: fix zc send link failing
io_uring/net: fix must_hold annotation
io_uring: fix submission-failure handling for uring-cmd
io_uring: fix off-by-one in sync cancelation file check
io_uring: uapi: Add `extern "C"` in io_uring.h for liburing
MAINTAINERS: Add `include/linux/io_uring_types.h`
Shigeru Yoshida [Thu, 18 Aug 2022 18:13:36 +0000 (03:13 +0900)]
fbdev: fbcon: Properly revert changes when vc_resize() failed
fbcon_do_set_font() calls vc_resize() when font size is changed.
However, if if vc_resize() failed, current implementation doesn't
revert changes for font size, and this causes inconsistent state.
syzbot reported unable to handle page fault due to this issue [1].
syzbot's repro uses fault injection which cause failure for memory
allocation, so vc_resize() failed.
This patch fixes this issue by properly revert changes for font
related date when vc_resize() failed.
Link: https://syzkaller.appspot.com/bug?id=3443d3a1fa6d964dd7310a0cb1696d165a3e07c4
Reported-by: syzbot+a168dbeaaa7778273c1b@syzkaller.appspotmail.com
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
CC: stable@vger.kernel.org # 5.15+
Linus Torvalds [Fri, 26 Aug 2022 17:29:56 +0000 (10:29 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Ten fixes.
Of the three core changes, the two large ones are a complete reversion
of the async rework and an ALUA timing rework (the latter shouldn't
affect non-ALUA paths).
The remaining patches are all small and all but one in drivers"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sd: Revert "Rework asynchronous resume support"
scsi: core: Fix passthrough retry counter handling
scsi: ufs: core: Reduce the power mode change timeout
scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq
scsi: ufs: host: ufs-exynos: Make fsd_ufs_drvs static
scsi: megaraid_sas: Remove unnecessary kfree()
scsi: megaraid_sas: Fix double kfree()
scsi: ufs: core: Enable link lost interrupt
scsi: core: Allow the ALUA transitioning state enough time
scsi: qla2xxx: Disable ATIO interrupt coalesce for quad port ISP27XX
Mikulas Patocka [Fri, 26 Aug 2022 13:17:08 +0000 (09:17 -0400)]
wait_on_bit: add an acquire memory barrier
There are several places in the kernel where wait_on_bit is not followed
by a memory barrier (for example, in drivers/md/dm-bufio.c:new_read).
On architectures with weak memory ordering, it may happen that memory
accesses that follow wait_on_bit are reordered before wait_on_bit and
they may return invalid data.
Fix this class of bugs by introducing a new function "test_bit_acquire"
that works like test_bit, but has acquire memory ordering semantics.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Fri, 26 Aug 2022 04:45:38 +0000 (21:45 -0700)]
Merge branch 'linus'
Dave Airlie [Thu, 25 Aug 2022 23:56:53 +0000 (09:56 +1000)]
Merge tag 'amd-drm-fixes-6.0-2022-08-25' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.0-2022-08-25:
amdgpu:
- GFX 11.0 fixes
- PSP XGMI handling fixes
- GFX9 fix for compute-only IPs
- Drop duplicated function call
- Fix warning due to missing header
- NBIO 7.7 fixes
- DCN 3.1.4 fixes
- SDMA 6.0 fixes
- SMU 13.0 fixes
- Arcturus GPUVM page table fix
- MMHUB 1.0 fix
amdkfd:
- GC 10.3.7 fix
radeon:
- Delayed work flush fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220825181243.5853-1-alexander.deucher@amd.com
Dave Airlie [Thu, 25 Aug 2022 23:47:49 +0000 (09:47 +1000)]
Merge tag 'drm-misc-fixes-2022-08-25' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Short summary of fixes pull:
* gem: Fixes handle release leak
* nouveau: Fix fencing when moving BO
* vc4: HDMI fixes
* Backmerging for v6.0-rc1
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YwclSWheC+Ai+u+v@linux-uq9g
Palmer Dabbelt [Thu, 25 Aug 2022 23:37:17 +0000 (16:37 -0700)]
Merge branch 'riscv-variable_fixes_without_kvm' of git://git./linux/kernel/git/palmer/linux.git into fixes
This contains a pair of fixes for build-time warnings.
* 'riscv-variable_fixes_without_kvm' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git:
riscv: traps: add missing prototype
riscv: signal: fix missing prototype warning
Palmer Dabbelt [Thu, 25 Aug 2022 23:06:49 +0000 (16:06 -0700)]
Merge tag 'dt-fixes-for-palmer-6.0-rc3' of git://git./linux/kernel/git/conor/linux.git into fixes
Microchip RISC-V devicetree fixes for 6.0-rc3
Two sets of fixes this time around:
- A fix for the interrupt ordering of the l2-cache controller. If the
driver is enabled, it would spam the console /constantly/, rendering
the system useless.
- General cleanup for some bogus properties in the dt, part of my quest
for zero dtbs_check warnings.
On that note, the interrupt ordering adds a dtbs_check warning - but I
considered that fixing the potentially useless system was more of a
priority.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
* tag 'dt-fixes-for-palmer-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git:
riscv: dts: microchip: mpfs: remove pci axi address translation property
riscv: dts: microchip: mpfs: remove bogus card-detect-delay
riscv: dts: microchip: mpfs: remove ti,fifo-depth property
riscv: dts: microchip: mpfs: fix incorrect pcie child node name
riscv: dts: microchip: correct L2 cache interrupts
Richard Guy Briggs [Thu, 25 Aug 2022 19:32:40 +0000 (15:32 -0400)]
audit: move audit_return_fixup before the filters
The success and return_code are needed by the filters. Move
audit_return_fixup() before the filters. This was causing syscall
auditing events to be missed.
Link: https://github.com/linux-audit/audit-kernel/issues/138
Cc: stable@vger.kernel.org
Fixes:
12c5e81d3fd0 ("audit: prepare audit_context for use in calling contexts beyond syscalls")
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: manual merge required]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Linus Torvalds [Thu, 25 Aug 2022 21:03:58 +0000 (14:03 -0700)]
Merge tag 'net-6.0-rc3' of git://git./linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from ipsec and netfilter (with one broken Fixes tag).
Current release - new code bugs:
- dsa: don't dereference NULL extack in dsa_slave_changeupper()
- dpaa: fix <1G ethernet on LS1046ARDB
- neigh: don't call kfree_skb() under spin_lock_irqsave()
Previous releases - regressions:
- r8152: fix the RX FIFO settings when suspending
- dsa: microchip: keep compatibility with device tree blobs with no
phy-mode
- Revert "net: macsec: update SCI upon MAC address change."
- Revert "xfrm: update SA curlft.use_time", comply with RFC 2367
Previous releases - always broken:
- netfilter: conntrack: work around exceeded TCP receive window
- ipsec: fix a null pointer dereference of dst->dev on a metadata dst
in xfrm_lookup_with_ifid
- moxa: get rid of asymmetry in DMA mapping/unmapping
- dsa: microchip: make learning configurable and keep it off while
standalone
- ice: xsk: prohibit usage of non-balanced queue id
- rxrpc: fix locking in rxrpc's sendmsg
Misc:
- another chunk of sysctl data race silencing"
* tag 'net-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
net: lantiq_xrx200: restore buffer if memory allocation failed
net: lantiq_xrx200: fix lock under memory pressure
net: lantiq_xrx200: confirm skb is allocated before using
net: stmmac: work around sporadic tx issue on link-up
ionic: VF initial random MAC address if no assigned mac
ionic: fix up issues with handling EAGAIN on FW cmds
ionic: clear broken state on generation change
rxrpc: Fix locking in rxrpc's sendmsg
net: ethernet: mtk_eth_soc: fix hw hash reporting for MTK_NETSYS_V2
MAINTAINERS: rectify file entry in BONDING DRIVER
i40e: Fix incorrect address type for IPv6 flow rules
ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter
net: Fix a data-race around sysctl_somaxconn.
net: Fix a data-race around netdev_unregister_timeout_secs.
net: Fix a data-race around gro_normal_batch.
net: Fix data-races around sysctl_devconf_inherit_init_net.
net: Fix data-races around sysctl_fb_tunnels_only_for_init_net.
net: Fix a data-race around netdev_budget_usecs.
net: Fix data-races around sysctl_max_skb_frags.
net: Fix a data-race around netdev_budget.
...
Jakub Kicinski [Thu, 25 Aug 2022 19:41:41 +0000 (12:41 -0700)]
Merge branch 'net-lantiq_xrx200-fix-errors-under-memory-pressure'
Aleksander Jan Bajkowski says:
====================
net: lantiq_xrx200: fix errors under memory pressure
This series fixes issues that can occur in the driver under memory pressure.
Situations when the system cannot allocate memory are rare, so the mentioned
bugs have been fixed recently. The patches have been tested on a BT Home
router with the Lantiq xRX200 chipset.
Changelog:
v3: - removed netdev_err() log from the first patch
v2:
- the second patch has been changed, so that under memory pressure situation
the driver will not receive packets indefinitely regardless of the NAPI budget,
- the third patch has been added.
====================
Link: https://lore.kernel.org/r/20220824215408.4695-1-olek2@wp.pl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Aleksander Jan Bajkowski [Wed, 24 Aug 2022 21:54:08 +0000 (23:54 +0200)]
net: lantiq_xrx200: restore buffer if memory allocation failed
In a situation where memory allocation fails, an invalid buffer address
is stored. When this descriptor is used again, the system panics in the
build_skb() function when accessing memory.
Fixes:
7ea6cd16f159 ("lantiq: net: fix duplicated skb in rx descriptor ring")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Aleksander Jan Bajkowski [Wed, 24 Aug 2022 21:54:07 +0000 (23:54 +0200)]
net: lantiq_xrx200: fix lock under memory pressure
When the xrx200_hw_receive() function returns -ENOMEM, the NAPI poll
function immediately returns an error.
This is incorrect for two reasons:
* the function terminates without enabling interrupts or scheduling NAPI,
* the error code (-ENOMEM) is returned instead of the number of received
packets.
After the first memory allocation failure occurs, packet reception is
locked due to disabled interrupts from DMA..
Fixes:
fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Aleksander Jan Bajkowski [Wed, 24 Aug 2022 21:54:06 +0000 (23:54 +0200)]
net: lantiq_xrx200: confirm skb is allocated before using
xrx200_hw_receive() assumes build_skb() always works and goes straight
to skb_reserve(). However, build_skb() can fail under memory pressure.
Add a check in case build_skb() failed to allocate and return NULL.
Fixes:
e015593573b3 ("net: lantiq_xrx200: convert to build_skb")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Heiner Kallweit [Wed, 24 Aug 2022 20:34:49 +0000 (22:34 +0200)]
net: stmmac: work around sporadic tx issue on link-up
This is a follow-up to the discussion in [0]. It seems to me that
at least the IP version used on Amlogic SoC's sometimes has a problem
if register MAC_CTRL_REG is written whilst the chip is still processing
a previous write. But that's just a guess.
Adding a delay between two writes to this register helps, but we can
also simply omit the offending second write. This patch uses the second
approach and is based on a suggestion from Qi Duan.
Benefit of this approach is that we can save few register writes, also
on not affected chip versions.
[0] https://www.spinics.net/lists/netdev/msg831526.html
Fixes:
bfab27a146ed ("stmmac: add the experimental PCI support")
Suggested-by: Qi Duan <qi.duan@amlogic.com>
Suggested-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/e99857ce-bd90-5093-ca8c-8cd480b5a0a2@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Thu, 25 Aug 2022 19:40:29 +0000 (12:40 -0700)]
Merge branch '10GbE' of git://git./linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-08-24 (ixgbe, i40e)
This series contains updates to ixgbe and i40e drivers.
Jake stops incorrect resetting of SYSTIME registers when starting
cyclecounter for ixgbe.
Sylwester corrects a check on source IP address when validating destination
for i40e.
* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
i40e: Fix incorrect address type for IPv6 flow rules
ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter
====================
Link: https://lore.kernel.org/r/20220824193748.874343-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Thu, 25 Aug 2022 19:40:17 +0000 (12:40 -0700)]
Merge branch 'ionic-bug-fixes'
Shannon Nelson says:
====================
ionic: bug fixes
These are a couple of maintenance bug fixes for the Pensando ionic
networking driver.
Mohamed takes care of a "plays well with others" issue where the
VF spec is a bit vague on VF mac addresses, but certain customers
have come to expect behavior based on other vendor drivers.
Shannon addresses a couple of corner cases seen in internal
stress testing.
====================
Link: https://lore.kernel.org/r/20220824165051.6185-1-snelson@pensando.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
R Mohamed Shah [Wed, 24 Aug 2022 16:50:51 +0000 (09:50 -0700)]
ionic: VF initial random MAC address if no assigned mac
Assign a random mac address to the VF interface station
address if it boots with a zero mac address in order to match
similar behavior seen in other VF drivers. Handle the errors
where the older firmware does not allow the VF to set its own
station address.
Newer firmware will allow the VF to set the station mac address
if it hasn't already been set administratively through the PF.
Setting it will also be allowed if the VF has trust.
Fixes:
fbb39807e9ae ("ionic: support sr-iov operations")
Signed-off-by: R Mohamed Shah <mohamed@pensando.io>
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>