platform/kernel/linux-starfive.git
2 years agoMerge branch 'fixes' into next
Ulf Hansson [Tue, 21 Dec 2021 12:04:51 +0000 (13:04 +0100)]
Merge branch 'fixes' into next

2 years agommc: mmci: stm32: clear DLYB_CR after sending tuning command
Yann Gautier [Wed, 15 Dec 2021 14:17:26 +0000 (15:17 +0100)]
mmc: mmci: stm32: clear DLYB_CR after sending tuning command

During test campaign, and especially after several unbind/bind sequences,
it has been seen that the SD-card on SDMMC1 thread could freeze.
The freeze always appear on a CMD23 following a CMD19.
Checking SDMMC internal registers shows that the tuning command (CMD19)
has failed.
The freeze is then due to the delay block involved in the tuning sequence.
To correct this, clear the delay block register DLYB_CR register after
the tuning commands.

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Fixes: 1103f807a3b9 ("mmc: mmci_sdmmc: Add execute tuning with delay block")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215141727.4901-4-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agodt-bindings: mmc: mmci: Add st,stm32-sdmmc2 compatible
Yann Gautier [Fri, 10 Dec 2021 09:18:34 +0000 (10:18 +0100)]
dt-bindings: mmc: mmci: Add st,stm32-sdmmc2 compatible

Although this compatible is not used in kernel, as we use the common
MMCI driver, it is used by bootloaders. The U-Boot driver was merged
before the kernel driver and uses this compatible.

To avoid issues when aligning device tree files between kernel and
boot loader, the ST dedicated compatible is added to bindings file.

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211210091834.28958-1-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: meson-mx-sdhc: Drop unused MESON_SDHC_NUM_BUILTIN_CLKS macro
Martin Blumenstingl [Sun, 19 Dec 2021 15:34:42 +0000 (16:34 +0100)]
mmc: meson-mx-sdhc: Drop unused MESON_SDHC_NUM_BUILTIN_CLKS macro

Remove MESON_SDHC_NUM_BUILTIN_CLKS because it is not used anywhere in
the driver.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20211219153442.463863-3-martin.blumenstingl@googlemail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agoMerge branch 'fixes' into next
Ulf Hansson [Mon, 20 Dec 2021 10:18:44 +0000 (11:18 +0100)]
Merge branch 'fixes' into next

2 years agommc: meson-mx-sdhc: Set MANUAL_STOP for multi-block SDIO commands
Martin Blumenstingl [Sun, 19 Dec 2021 15:34:41 +0000 (16:34 +0100)]
mmc: meson-mx-sdhc: Set MANUAL_STOP for multi-block SDIO commands

The vendor driver implements special handling for multi-block
SD_IO_RW_EXTENDED (and SD_IO_RW_DIRECT) commands which have data
attached to them. It sets the MANUAL_STOP bit in the MESON_SDHC_MISC
register for these commands. In all other cases this bit is cleared.
Here we omit SD_IO_RW_DIRECT since that command never has any data
attached to it.

This fixes SDIO wifi using the brcmfmac driver which reported the
following error without this change on a Netxeon S82 board using a
Meson8 (S802) SoC:
  brcmf_fw_alloc_request: using brcm/brcmfmac43362-sdio for chip
                          BCM43362/1
  brcmf_sdiod_ramrw: membytes transfer failed
  brcmf_sdio_download_code_file: error -110 on writing 219557 membytes
                                 at 0x00000000
  brcmf_sdio_download_firmware: dongle image file download failed

And with this change:
  brcmf_fw_alloc_request: using brcm/brcmfmac43362-sdio for chip
                          BCM43362/1
  brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may
                            have limited channels available
  brcmf_c_preinit_dcmds: Firmware: BCM43362/1 wl0: Apr 22 2013 14:50:00
                         version 5.90.195.89.6 FWID 01-b30a427d

Fixes: e4bf1b0970ef96 ("mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211219153442.463863-2-martin.blumenstingl@googlemail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: Disable card detect during shutdown
Ulf Hansson [Fri, 3 Dec 2021 14:15:54 +0000 (15:15 +0100)]
mmc: core: Disable card detect during shutdown

It's seems prone to problems by allowing card detect and its corresponding
mmc_rescan() work to run, during platform shutdown. For example, we may end
up turning off the power while initializing a card, which potentially could
damage it.

To avoid this scenario, let's add ->shutdown_pre() callback for the mmc host
class device and then turn of the card detect from there.

Reported-by: Al Cooper <alcooperx@gmail.com>
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211203141555.105351-1-ulf.hansson@linaro.org
2 years agoMerge branch 'fixes' into next
Ulf Hansson [Tue, 14 Dec 2021 20:36:21 +0000 (21:36 +0100)]
Merge branch 'fixes' into next

2 years agodt-bindings: mmc: Convert Broadcom STB SDHCI binding to YAML
Florian Fainelli [Wed, 8 Dec 2021 00:37:12 +0000 (16:37 -0800)]
dt-bindings: mmc: Convert Broadcom STB SDHCI binding to YAML

Convert the Broadcom STB SDHCI controller Device Tree binding to YAML.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211208003727.3596577-2-f.fainelli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: Remove redundant driver match function
lizhe [Tue, 7 Dec 2021 09:50:29 +0000 (01:50 -0800)]
mmc: core: Remove redundant driver match function

If there is no driver match function, the driver core assumes that each
candidate pair (driver, device) matches, see driver_match_device().

Drop the mmc bus's match function that always returned 1 and so implements
the same behaviour as when there is no match function.

Signed-off-by: lizhe <sensor1010@163.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211207095029.96387-1-sensor1010@163.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agodt-bindings: mmc: Add missing properties used in examples
Rob Herring [Mon, 6 Dec 2021 17:42:00 +0000 (11:42 -0600)]
dt-bindings: mmc: Add missing properties used in examples

When 'unevaluatedProperties' support is enabled, the following warnings
are generated in the mmc bindings:

Documentation/devicetree/bindings/mmc/mtk-sd.example.dt.yaml: mmc@11230000: Unevaluated properties are not allowed ('reg', 'interrupts' were unexpected)
Documentation/devicetree/bindings/mmc/sdhci-am654.example.dt.yaml: mmc@4f80000: Unevaluated properties are not allowed ('sdhci-caps-mask' was unexpected)
Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.example.dt.yaml: mmc@5a400000: Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)
Documentation/devicetree/bindings/mmc/arm,pl18x.example.dt.yaml: mmc@80126000: Unevaluated properties are not allowed ('dmas', 'dma-names' were unexpected)
Documentation/devicetree/bindings/mmc/arasan,sdhci.example.dt.yaml: mmc@80420000: Unevaluated properties are not allowed ('resets' was unexpected)
Documentation/devicetree/bindings/mmc/arm,pl18x.example.dt.yaml: mmc@52007000: Unevaluated properties are not allowed ('interrupt-names' was unexpected)
Documentation/devicetree/bindings/clock/imx8qxp-lpcg.example.dt.yaml: mmc@5b010000: Unevaluated properties are not allowed ('power-domains' was unexpected)

Add the missing properties as necessary. For pl18x, drop interrupt-names
as there isn't any use of it when there are 2 interrupts.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Chaotian Jing <chaotian.jing@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Wenbin Mei <wenbin.mei@mediatek.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: linux-mmc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211206174201.2297265-1-robh@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: mmc_spi: Use write_or_read temporary variable in mmc_spi_data_do()
Andy Shevchenko [Mon, 6 Dec 2021 11:52:18 +0000 (13:52 +0200)]
mmc: mmc_spi: Use write_or_read temporary variable in mmc_spi_data_do()

Use write_or_read temporary variable in mmc_spi_data_do() to deduplicate
the conditional code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211206115218.73874-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: mmc_spi: Convert 'multiple' to be boolean in mmc_spi_data_do()
Andy Shevchenko [Mon, 6 Dec 2021 11:52:17 +0000 (13:52 +0200)]
mmc: mmc_spi: Convert 'multiple' to be boolean in mmc_spi_data_do()

Convert 'multiple' to be boolean in mmc_spi_data_do() since
it's initially being used as boolean.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211206115218.73874-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: sdhci-esdhc-imx: Add sdhc support for i.MXRT series
Jesse Taube [Thu, 25 Nov 2021 21:14:41 +0000 (16:14 -0500)]
mmc: sdhci-esdhc-imx: Add sdhc support for i.MXRT series

Add support for i.MXRT1050's sdhc.

Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20211125211443.1150135-12-Mr.Bossman075@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agodt-bindings: mmc: fsl-imx-esdhc: add i.MXRT compatible string
Jesse Taube [Thu, 25 Nov 2021 21:14:40 +0000 (16:14 -0500)]
dt-bindings: mmc: fsl-imx-esdhc: add i.MXRT compatible string

Add i.MXRT documentation for compatible string.

Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211125211443.1150135-11-Mr.Bossman075@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: dw_mmc: exynos: use common_caps
John Keeping [Wed, 24 Nov 2021 18:46:02 +0000 (18:46 +0000)]
mmc: dw_mmc: exynos: use common_caps

Move the common MMC_CAP_CMD23 capability to common_caps so that only the
special case of MMC_CAP_1_8V_DDR and MMC_CAP_8_BIT_DATA are set via
caps/num_caps.  Both of those can, and should, be set via device tree
properties instead, so we can now say that exynos_dwmmc_caps is only
used for backwards compatibility.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/20211124184603.3897245-5-john@metanate.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: dw_mmc: rockchip: use common_caps
John Keeping [Wed, 24 Nov 2021 18:46:01 +0000 (18:46 +0000)]
mmc: dw_mmc: rockchip: use common_caps

The capabilities for all instances are the same, so use common_caps
instead of caps/num_caps to remove the dependency on the mshcN device
tree alias.

Signed-off-by: John Keeping <john@metanate.com>
Tested-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/20211124184603.3897245-4-john@metanate.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: dw_mmc: hi3798cv200: use common_caps
John Keeping [Wed, 24 Nov 2021 18:46:00 +0000 (18:46 +0000)]
mmc: dw_mmc: hi3798cv200: use common_caps

The capabilities for all instances are the same, so use common_caps
instead of caps/num_caps to remove the dependency on the mshcN device
tree alias.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/20211124184603.3897245-3-john@metanate.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: dw_mmc: add common capabilities to replace caps
John Keeping [Wed, 24 Nov 2021 18:45:59 +0000 (18:45 +0000)]
mmc: dw_mmc: add common capabilities to replace caps

The caps field depends on the mshcN alias ID but for some devices this
is unnecessary as the capabilities are the same for all instances
sharing the same compatible.

Add a common_caps field for this case which updates the host's
capabilities without needing the mshcN alias ID.

Signed-off-by: John Keeping <john@metanate.com>
Tested-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/20211124184603.3897245-2-john@metanate.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: sdhci-pci: Add PCI ID for Intel ADL
Adrian Hunter [Wed, 24 Nov 2021 09:48:50 +0000 (11:48 +0200)]
mmc: sdhci-pci: Add PCI ID for Intel ADL

Add PCI ID for Intel ADL eMMC host controller.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211124094850.1783220-1-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: dw_mmc: Allow lower TMOUT value than maximum
Mårten Lindahl [Fri, 19 Nov 2021 15:53:37 +0000 (16:53 +0100)]
mmc: dw_mmc: Allow lower TMOUT value than maximum

The TMOUT register is always set with a full value for every transfer,
which (with a 200MHz clock) will give a full DRTO of ~84 milliseconds.
This is normally good enough to complete the request, but setting a full
value makes it impossible to test shorter timeouts, when for example
testing data read times on different SD cards.

Add a function to set any value smaller than the maximum of 0xFFFFFF.

Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/20211119155337.14341-1-marten.lindahl@axis.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: adjust polling interval for CMD1
Huijin Park [Thu, 4 Nov 2021 06:32:31 +0000 (15:32 +0900)]
mmc: core: adjust polling interval for CMD1

In mmc_send_op_cond(), loops are continuously performed at the same
interval of 10 ms.  However the behaviour is not good for some eMMC
which can be out from a busy state earlier than 10 ms if normal.

Rather than fixing about the interval time in mmc_send_op_cond(),
let's instead convert into using the common __mmc_poll_for_busy().

The reason for adjusting the interval time is that it is important
to reduce the eMMC initialization time, especially in devices that
use eMMC as rootfs.

Test log(eMMC:KLM8G1GETF-B041):

before: 12 ms (0.311016 - 0.298729)
[    0.295823] mmc0: starting CMD0 arg 00000000 flags 000000c0
[    0.298729] mmc0: starting CMD1 arg 40000080 flags 000000e1<-start
[    0.311016] mmc0: starting CMD1 arg 40000080 flags 000000e1<-finish
[    0.311336] mmc0: starting CMD2 arg 00000000 flags 00000007

after: 2 ms (0.301270 - 0.298762)
[    0.295862] mmc0: starting CMD0 arg 00000000 flags 000000c0
[    0.298762] mmc0: starting CMD1 arg 40000080 flags 000000e1<-start
[    0.299067] mmc0: starting CMD1 arg 40000080 flags 000000e1
[    0.299441] mmc0: starting CMD1 arg 40000080 flags 000000e1
[    0.299879] mmc0: starting CMD1 arg 40000080 flags 000000e1
[    0.300446] mmc0: starting CMD1 arg 40000080 flags 000000e1
[    0.301270] mmc0: starting CMD1 arg 40000080 flags 000000e1<-finish
[    0.301572] mmc0: starting CMD2 arg 00000000 flags 00000007

Signed-off-by: Huijin Park <huijin.park@samsung.com>
Link: https://lore.kernel.org/r/20211104063231.2115-3-huijin.park@samsung.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: change __mmc_poll_for_busy() parameter type
Huijin Park [Thu, 4 Nov 2021 06:32:30 +0000 (15:32 +0900)]
mmc: core: change __mmc_poll_for_busy() parameter type

This patch changes the __mmc_poll_for_busy() first parameter type
from 'struct mmc_card*' to 'struct mmc_host*'.
Because the function refers only 'struct mmc_host' to get hostname.

Signed-off-by: Huijin Park <huijin.park@samsung.com>
Link: https://lore.kernel.org/r/20211104063231.2115-2-huijin.park@samsung.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agodt-bindings: mmc: imx-esdhc: Add imx8ulp compatible string
Jacky Bai [Fri, 12 Nov 2021 08:29:23 +0000 (16:29 +0800)]
dt-bindings: mmc: imx-esdhc: Add imx8ulp compatible string

The USDHC on i.MX8ULP is derived from i.MX8MM, it uses two
compatible strings, so update the compatible string for i.MX8ULP.

Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20211112082930.3809351-3-peng.fan@oss.nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: dw_mmc: Avoid hung state if GEN_CMD transfer fails
Mårten Lindahl [Wed, 3 Nov 2021 18:27:16 +0000 (19:27 +0100)]
mmc: dw_mmc: Avoid hung state if GEN_CMD transfer fails

If we get a data error during a block transfer command, a stop command
(CMD12) is normally initiated. But this does not work for the general
command (CMD56), but instead the action is ignored and an uninitialized
command struct is used for the stop action, with unexpected result.

Fix this by adding a check for GEN_CMD when preparing stop transmission.

Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Link: https://lore.kernel.org/r/20211103182716.28419-1-marten.lindahl@axis.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: omap_hsmmc: Revert special init for wl1251
H. Nikolaus Schaller [Wed, 10 Nov 2021 17:17:11 +0000 (18:17 +0100)]
mmc: omap_hsmmc: Revert special init for wl1251

Due to recent changes to the mmc core, card quirks can be applied based
upon a compatible string in child OF node. The quirk needed for wl1251
(SDIO card) is managed in the core, therefore there is no longer any reason
to deal with this in omap_hsmmc too, so let's remove it.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/77d313b97d1e18b0eb7ed2d88d718d960f329bb0.1636564631.git.hns@goldelico.com
[Ulf: Re-wrote the commit message to make it more clear]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: transplant ti,wl1251 quirks from to be retired omap_hsmmc
H. Nikolaus Schaller [Wed, 10 Nov 2021 17:17:10 +0000 (18:17 +0100)]
mmc: core: transplant ti,wl1251 quirks from to be retired omap_hsmmc

The TiWi WL1251 WiFi chip needs special setup of the sdio
interface before it can be probed.

So far, this is done in omap_hsmmc_init_card() in omap_hsmmc.c
which makes it useable only if connected to omap devices
which use the omap_hsmmc. The OpenPandora is the most promient
example.

There are plans to switch to a newer sdhci-omap driver and
retire omap_hsmmc. Hence this quirk must be reworked or moved
somewhere else. Ideally to some location that is not dependent
on the specific SoC mmc host driver.

This is achieved by the new mmc_fixup_device() option introduced
by ("mmc: allow to match the device tree to apply quirks") to match
through device tree compatible string.

This quirk will be called early right after where host->ops->init_card()
and thus omap_hsmmc_init_card() was previously called.

Note that we do not need to transplant

card->ocr = 0x80;

because we rely on ("mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO").

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/774565df7f02124c003aaf8b879706352548f832.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO
Ulf Hansson [Wed, 10 Nov 2021 17:17:09 +0000 (18:17 +0100)]
mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO

The mmc core takes a specific path to support initializing of a
non-standard SDIO card. This is triggered by looking for the card-quirk,
MMC_QUIRK_NONSTD_SDIO.

In mmc_sdio_init_card() this gets rather messy, as it causes the code to
bail out earlier, compared to the usual path. This leads to that the OCR
doesn't get saved properly in card->ocr. Fortunately, only omap_hsmmc has
been using the MMC_QUIRK_NONSTD_SDIO and is dealing with the issue, by
assigning a hardcoded value (0x80) to card->ocr from an ->init_card() ops.

To make the behaviour consistent, let's instead rely on the core to save
the OCR in card->ocr during initialization.

Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/e7936cff7fc24d187ef2680d3b4edb0ade58f293.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: provide macro and table to match the device tree to apply quirks
H. Nikolaus Schaller [Wed, 10 Nov 2021 17:17:08 +0000 (18:17 +0100)]
mmc: core: provide macro and table to match the device tree to apply quirks

This (initially empty) table allows to match quirks early based
on .compatible of the child node of some mmc/sdio interface.

This allows to add quirks based on device tree instead of having
card specific code in the host ops.

A new macro SDIO_FIXUP_COMPATIBLE makes the definition readable.

And we call mmc_fixup_device(sdio_card_init_methods) just after
where host->ops->init_card() can be optionally called.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/b13fd8b3eebc3c23b6816b254a518c224cbdcfd4.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: allow to match the device tree to apply quirks
Jérôme Pouiller [Wed, 10 Nov 2021 17:17:07 +0000 (18:17 +0100)]
mmc: core: allow to match the device tree to apply quirks

MMC subsystem provides a way to apply quirks when a device match some
properties (VID, PID, etc...) Unfortunately, some SDIO devices do not
comply with the SDIO specification and does not provide reliable VID/PID
(eg. Silabs WF200).

So, the drivers for these devices rely on device tree to identify the
device.

This patch allows the MMC to also rely on the device tree to apply a
quirk.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/9e68e3d23e62a78527aabc1281f89e15200c7d09.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: core: rewrite mmc_fixup_device()
Jérôme Pouiller [Wed, 10 Nov 2021 17:17:06 +0000 (18:17 +0100)]
mmc: core: rewrite mmc_fixup_device()

Currently, mmc_fixup_device() is a bit difficult to read because of
particularly long condition.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/6515c1e8b3aa69ad273726f6e877d85c20f286ad.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: tmio: reinit card irqs in reset routine
Biju Das [Wed, 3 Nov 2021 12:26:46 +0000 (13:26 +0100)]
mmc: tmio: reinit card irqs in reset routine

Refactor the code so that card detect irqs are always reenabled after a
reset. This avoids doing it manually all over the code or forgetting to
do this in the future.

Reported-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
[wsa: added a comment when 'native_hotplug' has to be set]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20211103122646.64422-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agommc: sdhci-tegra: Fix switch to HS400ES mode
Prathamesh Shete [Tue, 14 Dec 2021 11:36:53 +0000 (17:06 +0530)]
mmc: sdhci-tegra: Fix switch to HS400ES mode

When CMD13 is sent after switching to HS400ES mode, the bus
is operating at either MMC_HIGH_26_MAX_DTR or MMC_HIGH_52_MAX_DTR.
To meet Tegra SDHCI requirement at HS400ES mode, force SDHCI
interface clock to MMC_HS200_MAX_DTR (200 MHz) so that host
controller CAR clock and the interface clock are rate matched.

Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: dfc9700cef77 ("mmc: tegra: Implement HS400 enhanced strobe")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211214113653.4631-1-pshete@nvidia.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2 years agoLinux 5.16-rc5
Linus Torvalds [Sun, 12 Dec 2021 22:53:01 +0000 (14:53 -0800)]
Linux 5.16-rc5

2 years agoMerge tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 12 Dec 2021 18:20:57 +0000 (10:20 -0800)]
Merge tag 'usb-5.16-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 5.16-rc5.  They include:

   - gadget driver fixes for reported issues

   - xhci fixes for reported problems.

   - config endpoint parsing fixes for where we got bitfields wrong

  Most of these have been in linux-next, the remaining few were not, but
  got lots of local testing in my systems and in some cloud testing
  infrastructures"

* tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: core: config: using bit mask instead of individual bits
  usb: core: config: fix validation of wMaxPacketValue entries
  USB: gadget: zero allocate endpoint 0 buffers
  USB: gadget: detect too-big endpoint 0 requests
  xhci: avoid race between disable slot command and host runtime suspend
  xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending
  Revert "usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default"

2 years agoMerge tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sun, 12 Dec 2021 18:16:34 +0000 (10:16 -0800)]
Merge tag 'char-misc-5.16-rc5' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a bunch of small char/misc and other driver subsystem fixes.

  Included in here are:

   - iio driver fixes for reported problems

   - phy driver fixes for a number of reported problems

   - mhi resume bugfix for broken hardware

   - nvmem driver fix

   - rtsx driver fix for irq issues

   - fastrpc packet parsing fix

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

* tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (33 commits)
  bus: mhi: core: Add support for forced PM resume
  iio: trigger: stm32-timer: fix MODULE_ALIAS
  misc: rtsx: Avoid mangling IRQ during runtime PM
  nvmem: eeprom: at25: fix FRAM byte_len
  misc: fastrpc: fix improper packet size calculation
  MAINTAINERS: add maintainer for Qualcomm FastRPC driver
  bus: mhi: pci_generic: Fix device recovery failed issue
  iio: adc: stm32: fix null pointer on defer_probe error
  phy: HiSilicon: Fix copy and paste bug in error handling
  dt-bindings: phy: zynqmp-psgtr: fix USB phy name
  phy: ti: omap-usb2: Fix the kernel-doc style
  phy: qualcomm: ipq806x-usb: Fix kernel-doc style
  iio: at91-sama5d2: Fix incorrect sign extension
  iio: adc: axp20x_adc: fix charging current reporting on AXP22x
  iio: gyro: adxrs290: fix data signedness
  phy: ti: tusb1210: Fix the kernel-doc warn
  phy: qualcomm: usb-hsic: Fix the kernel-doc warn
  phy: qualcomm: qmp: Add missing struct documentation
  phy: mvebu-cp110-utmi: Fix kernel-doc warns
  iio: ad7768-1: Call iio_trigger_notify_done() on error
  ...

2 years agoMerge tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Dec 2021 18:07:50 +0000 (10:07 -0800)]
Merge tag 'timers-urgent-2021-12-12' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "Two fixes for clock chip drivers:

   - A regression fix for the Designware APB timer. A recent change to
     the error checking code transformed the error condition wrongly so
     it turned into a fail if good condition.

   - Fix a clang build fail of the ARM architected timer driver"

* tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/arm_arch_timer: Force inlining of erratum_set_next_event_generic()
  clocksource/drivers/dw_apb_timer_of: Fix probe failure

2 years agoMerge tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 12 Dec 2021 17:53:12 +0000 (09:53 -0800)]
Merge tag 'irq-urgent-2021-12-12' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of interrupt chip driver fixes:

   - Fix the multi vector MSI allocation on Armada 370XP

   - Do interrupt acknowledgement correctly in the aspeed-scu driver

   - Make the IPR register offset correct in the NVIC driver

   - Make redistribution table flushing correct by issueing a SYNC
     command to ensure that the invalidation command has been executed

   - Plug a device tree node reference leak in the bcm7210-l2 driver

   - Trivial fixes in the MIPS GIC and the Apple AIC drivers"

* tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-bcm7120-l2: Add put_device() after of_find_device_by_node()
  irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
  irqchip/apple-aic: Mark aic_init_smp() as __init
  irqchip: nvic: Fix offset for Interrupt Priority Offsets
  irqchip/mips-gic: Use bitfield helpers
  irqchip/aspeed-scu: Replace update_bits with write_bits.
  irqchip/armada-370-xp: Fix support for Multi-MSI interrupts
  irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc()

2 years agoMerge tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Dec 2021 17:38:04 +0000 (09:38 -0800)]
Merge tag 'sched-urgent-2021-12-12' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "A single fix for the x86 scheduler topology:

  Using cluster topology on hybrid CPUs, e.g. Alder Lake, biases the
  scheduler towards the ATOM cluster as that has more total capacity.
  Use selection based on CPU priority instead"

* tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched,x86: Don't use cluster topology for x86 hybrid CPUs

2 years agoMerge tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux
Linus Torvalds [Sun, 12 Dec 2021 17:32:49 +0000 (09:32 -0800)]
Merge tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux

Pull csky from Guo Ren:
 "Only one fix for csky: fix fpu config macro"

* tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux:
  csky: fix typo of fpu config macro

2 years agousb: core: config: using bit mask instead of individual bits
Pavel Hofman [Fri, 10 Dec 2021 08:52:19 +0000 (09:52 +0100)]
usb: core: config: using bit mask instead of individual bits

Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for
extracting multiple-transactions bits from wMaxPacketSize value.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agousb: core: config: fix validation of wMaxPacketValue entries
Pavel Hofman [Fri, 10 Dec 2021 08:52:18 +0000 (09:52 +0100)]
usb: core: config: fix validation of wMaxPacketValue entries

The checks performed by commit aed9d65ac327 ("USB: validate
wMaxPacketValue entries in endpoint descriptors") require that initial
value of the maxp variable contains both maximum packet size bits
(10..0) and multiple-transactions bits (12..11). However, the existing
code assings only the maximum packet size bits. This patch assigns all
bits of wMaxPacketSize to the variable.

Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoUSB: gadget: zero allocate endpoint 0 buffers
Greg Kroah-Hartman [Thu, 9 Dec 2021 18:02:15 +0000 (19:02 +0100)]
USB: gadget: zero allocate endpoint 0 buffers

Under some conditions, USB gadget devices can show allocated buffer
contents to a host.  Fix this up by zero-allocating them so that any
extra data will all just be zeros.

Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoUSB: gadget: detect too-big endpoint 0 requests
Greg Kroah-Hartman [Thu, 9 Dec 2021 17:59:27 +0000 (18:59 +0100)]
USB: gadget: detect too-big endpoint 0 requests

Sometimes USB hosts can ask for buffers that are too large from endpoint
0, which should not be allowed.  If this happens for OUT requests, stall
the endpoint, but for IN requests, trim the request size to the endpoint
buffer size.

Co-developed-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 12 Dec 2021 00:28:27 +0000 (16:28 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four fixes, all in drivers.

  Three are small and obvious, the qedi one is a bit larger but also
  pretty obvious"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Format log strings only if needed
  scsi: scsi_debug: Fix buffer size of REPORT ZONES command
  scsi: qedi: Fix cmd_cleanup_cmpl counter mismatch issue
  scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()

2 years agoMerge tag 'xfs-5.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sun, 12 Dec 2021 00:21:06 +0000 (16:21 -0800)]
Merge tag 'xfs-5.16-fixes-3' of git://git./fs/xfs/xfs-linux

Pull xfs fix from Darrick Wong:
 "This fixes a race between a readonly remount process and other
  processes that hold a file IOLOCK on files that previously experienced
  copy on write, that could result in severe filesystem corruption if
  the filesystem is then remounted rw.

  I think this is fairly rare (since the only reliable reproducer I have
  that fits the second criteria is the experimental xfs_scrub program),
  but the race is clear, so we still need to fix this.

  Summary:

   - Fix a data corruption vector that can result from the ro remount
     process failing to clear all speculative preallocations from files
     and the rw remount process not noticing the incomplete cleanup"

* tag 'xfs-5.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: remove all COW fork extents when remounting readonly

2 years agoMerge branch 'for-5.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis...
Linus Torvalds [Sun, 12 Dec 2021 00:14:17 +0000 (16:14 -0800)]
Merge branch 'for-5.16-fixes' of git://git./linux/kernel/git/dennis/percpu

Pull percpu fixes from Dennis Zhou:
 "This contains a fix for SMP && !MMU archs for percpu which has been
  tested by arm and sh. It seems in the past they have gotten away with
  it due to mapping of vm functions to km functions, but this fell apart
  a few releases ago and was just reported recently.

  The other is just a minor dependency clean up.

  I think queued up right now by Andrew is a fix in percpu that papers
  of what seems to be a bug in hotplug for a special situation with
  memoryless nodes. Michal Hocko is digging into it further"

* 'for-5.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
  percpu_ref: Replace kernel.h with the necessary inclusions
  percpu: km: ensure it is used with NOMMU (either UP or SMP)

2 years agoMerge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sat, 11 Dec 2021 21:28:02 +0000 (13:28 -0800)]
Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Prevent out-of-bounds access to per sample registers.

 - Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.

 - Intel PT fixes, half of those are one-liners:
      - Fix some PGE (packet generation enable/control flow packets) usage.
      - Fix sync state when a PSB (synchronization) packet is found.
      - Fix intel_pt_fup_event() assumptions about setting state type.
      - Fix state setting when receiving overflow (OVF) packet.
      - Fix next 'err' value, walking trace.
      - Fix missing 'instruction' events with 'q' option.
      - Fix error timestamp setting on the decoder error path.

* tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf python: Fix NULL vs IS_ERR_OR_NULL() checking
  perf intel-pt: Fix error timestamp setting on the decoder error path
  perf intel-pt: Fix missing 'instruction' events with 'q' option
  perf intel-pt: Fix next 'err' value, walking trace
  perf intel-pt: Fix state setting when receiving overflow (OVF) packet
  perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
  perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
  perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
  perf tools: Prevent out-of-bounds access to registers

2 years agoMerge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 11 Dec 2021 17:25:07 +0000 (09:25 -0800)]
Merge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few block fixes that should go into this release:

   - NVMe pull request:
        - set ana_log_size to 0 after freeing ana_log_buf (Hou Tao)
        - show subsys nqn for duplicate cntlids (Keith Busch)
        - disable namespace access for unsupported metadata (Keith
          Busch)
        - report write pointer for a full zone as zone start + zone len
          (Niklas Cassel)
        - fix use after free when disconnecting a reconnecting ctrl
          (Ruozhu Li)
        - fix a list corruption in nvmet-tcp (Sagi Grimberg)

   - Fix for a regression on DIO single bio async IO (Pavel)

   - ioprio seteuid fix (Davidlohr)

   - mtd fix that subsequently got reverted as it was broken, will get
     re-done and submitted for the next round

   - Two MD fixes via Song (Markus, zhangyue)"

* tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
  Revert "mtd_blkdevs: don't scan partitions for plain mtdblock"
  block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
  md: fix double free of mddev->private in autorun_array()
  md: fix update super 1.0 on rdev size change
  nvmet-tcp: fix possible list corruption for unexpected command failure
  block: fix single bio async DIO error handling
  nvme: fix use after free when disconnecting a reconnecting ctrl
  nvme-multipath: set ana_log_size to 0 after free ana_log_buf
  mtd_blkdevs: don't scan partitions for plain mtdblock
  nvme: report write pointer for a full zone as zone start + zone len
  nvme: disable namespace access for unsupported metadata
  nvme: show subsys nqn for duplicate cntlids

2 years agoMerge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 11 Dec 2021 17:19:44 +0000 (09:19 -0800)]
Merge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "A few fixes that are all bound for stable:

   - Two syzbot reports for io-wq that turned out to be separate fixes,
     but ultimately very closely related

   - io_uring task_work running on cancelations"

* tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
  io-wq: check for wq exit after adding new worker task_work
  io_uring: ensure task_work gets run as part of cancelations
  io-wq: remove spurious bit clear on task_work addition

2 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 11 Dec 2021 17:09:59 +0000 (09:09 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two more I2C driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: mpc: Use atomic read and fix break condition
  i2c: virtio: fix completion handling

2 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 11 Dec 2021 17:06:08 +0000 (09:06 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk driver fixes from Stephen Boyd:

 - Fix qcom mux logic to look at the proper parent table member. Luckily
   this clk type isn't very common.

 - Don't kill clks on qcom systems that use Trion PLLs that are enabled
   out of the bootloader. We will simply skip programming the PLL rate
   if it's already done.

 - Use the proper clk_ops for the qcom sm6125 ICE clks.

 - Use module_platform_driver() in i.MX as it can be a module.

 - Fix a UAF in the versatile clk driver on an error path.

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: versatile: clk-icst: use after free on error path
  clk: qcom: sm6125-gcc: Swap ops of ice and apps on sdcc1
  clk: imx: use module_platform_driver
  clk: qcom: clk-alpha-pll: Don't reconfigure running Trion
  clk: qcom: regmap-mux: fix parent clock lookup

2 years agoMerge tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 11 Dec 2021 16:58:04 +0000 (08:58 -0800)]
Merge tag 'devicetree-fixes-for-5.16-2' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Revert schema checks on %.dtb targets. This was problematic for some
   external build tools.

 - A few DT binding example fixes

 - Add back dropped 'enet-phy-lane-no-swap' Ethernet PHY property

 - Drop erroneous if/then schema in nxp,imx7-mipi-csi2

 - Add a quirk to fix some interrupt controllers use of 'interrupt-map'

* tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  Revert "kbuild: Enable DT schema checks for %.dtb targets"
  dt-bindings: bq25980: Fixup the example
  dt-bindings: input: gpio-keys: Fix interrupts in example
  dt-bindings: net: Reintroduce PHY no lane swap binding
  dt-bindings: media: nxp,imx7-mipi-csi2: Drop bad if/then schema
  of/irq: Add a quirk for controllers with their own definition of interrupt-map
  dt-bindings: iio: adc: exynos-adc: Fix node name in example

2 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Sat, 11 Dec 2021 16:46:52 +0000 (08:46 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "21 patches.

  Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm
  (mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits)
  mm: bdi: initialize bdi_min_ratio when bdi is unregistered
  hugetlbfs: fix issue of preallocation of gigantic pages can't work
  mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
  mm/slub: fix endianness bug for alloc/free_traces attributes
  selftests/damon: split test cases
  selftests/damon: test debugfs file reads/writes with huge count
  selftests/damon: test wrong DAMOS condition ranges input
  selftests/damon: test DAMON enabling with empty target_ids case
  selftests/damon: skip test if DAMON is running
  mm/damon/vaddr-test: remove unnecessary variables
  mm/damon/vaddr-test: split a test function having >1024 bytes frame size
  mm/damon/vaddr: remove an unnecessary warning message
  mm/damon/core: remove unnecessary error messages
  mm/damon/dbgfs: remove an unnecessary error message
  mm/damon/core: use better timer mechanisms selection threshold
  mm/damon/core: fix fake load reports due to uninterruptible sleeps
  timers: implement usleep_idle_range()
  filemap: remove PageHWPoison check from next_uptodate_page()
  mailmap: update email address for Guo Ren
  MAINTAINERS: update kdump maintainers
  ...

2 years agoMerge tag 'timers-v5.16-rc4' of https://git.linaro.org/people/daniel.lezcano/linux...
Thomas Gleixner [Sat, 11 Dec 2021 12:56:30 +0000 (13:56 +0100)]
Merge tag 'timers-v5.16-rc4' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent

Pull timer fixes from Daniel Lezcano:

  - Fix build error with clang and some kernel configuration on the
    arm64 architected timer by inlining the
    erratum_set_next_event_generic() function (Marc Zyngier)

  - Fix probe error on the dw_apb_timer_of driver by fixing the
    incorrect condition previously introduced (Alexey Sheplyakov)

Link: https://lore.kernel.org/r/429b796d-9395-4ca8-81f3-30911f80a9a9@linaro.org
2 years agoperf python: Fix NULL vs IS_ERR_OR_NULL() checking
Miaoqian Lin [Sat, 11 Dec 2021 05:38:53 +0000 (05:38 +0000)]
perf python: Fix NULL vs IS_ERR_OR_NULL() checking

The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM).  Use
IS_ERR_OR_NULL to check tp_format.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20211211053856.19827-1-linmq006@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix error timestamp setting on the decoder error path
Adrian Hunter [Fri, 10 Dec 2021 16:23:03 +0000 (18:23 +0200)]
perf intel-pt: Fix error timestamp setting on the decoder error path

An error timestamp shows the last known timestamp for the queue, but this
is not updated on the error path. Fix by setting it.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix missing 'instruction' events with 'q' option
Adrian Hunter [Fri, 10 Dec 2021 16:23:02 +0000 (18:23 +0200)]
perf intel-pt: Fix missing 'instruction' events with 'q' option

FUP packets contain IP information, which makes them also an 'instruction'
event in 'hop' mode i.e. the itrace 'q' option.  That wasn't happening, so
restructure the logic so that FUP events are added along with appropriate
'instruction' and 'branch' events.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix next 'err' value, walking trace
Adrian Hunter [Fri, 10 Dec 2021 16:23:01 +0000 (18:23 +0200)]
perf intel-pt: Fix next 'err' value, walking trace

Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
but it may not be, if arrived at via a 'goto'. Ensure it is zero.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix state setting when receiving overflow (OVF) packet
Adrian Hunter [Fri, 10 Dec 2021 16:23:00 +0000 (18:23 +0200)]
perf intel-pt: Fix state setting when receiving overflow (OVF) packet

An overflow (OVF packet) is treated as an error because it represents a
loss of trace data, but there is no loss of synchronization, so the packet
state should be INTEL_PT_STATE_IN_SYNC not INTEL_PT_STATE_ERR_RESYNC.

To support that, some additional variables must be reset, and the FUP
packet that may follow OVF is treated as an FUP event.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
Adrian Hunter [Fri, 10 Dec 2021 16:22:59 +0000 (18:22 +0200)]
perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type

intel_pt_fup_event() assumes it can overwrite the state type if there has
been an FUP event, but this is an unnecessary and unexpected constraint on
callers.

Fix by touching only the state type flags that are affected by an FUP
event.

Fixes: a472e65fc490a ("perf intel-pt: Add decoder support for ptwrite and power event packets")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix sync state when a PSB (synchronization) packet is found
Adrian Hunter [Fri, 10 Dec 2021 16:22:58 +0000 (18:22 +0200)]
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found

When syncing, it may be that branch packet generation is not enabled at
that point, in which case there will not immediately be a control-flow
packet, so some packets before a control flow packet turns up, get
ignored.  However, the decoder is in sync as soon as a PSB is found, so
the state should be set accordingly.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
Adrian Hunter [Fri, 10 Dec 2021 16:22:57 +0000 (18:22 +0200)]
perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage

Packet generation enable (PGE) refers to whether control flow (COFI)
packets are being produced.

PGE may be false even when branch-tracing is enabled, due to being
out-of-context, or outside a filter address range.  Fix some missing PGE
usage.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Fixes: 839598176b0554 ("perf intel-pt: Allow decoding with branch tracing disabled")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf tools: Prevent out-of-bounds access to registers
German Gomez [Wed, 1 Dec 2021 12:33:29 +0000 (12:33 +0000)]
perf tools: Prevent out-of-bounds access to registers

The size of the cache of register values is arch-dependant
(PERF_REGS_MAX). This has the potential of causing an out-of-bounds
access in the function "perf_reg_value" if the local architecture
contains less registers than the one the perf.data file was recorded on.

Since the maximum number of registers is bound by the bitmask "u64
cache_mask", and the size of the cache when running under x86 systems is
64 already, fix the size to 64 and add a range-check to the function
"perf_reg_value" to prevent out-of-bounds access.

Reported-by: Alexandre Truong <alexandre.truong@arm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-csky@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Link: https://lore.kernel.org/r/20211201123334.679131-2-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoMerge tag 'irqchip-fixes-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Thomas Gleixner [Sat, 11 Dec 2021 09:51:23 +0000 (10:51 +0100)]
Merge tag 'irqchip-fixes-5.16-2' of git://git./linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Fix Armada-370-XP Multi-MSi allocation to be aligned on the allocation
   size, as required by the PCI spec

 - Fix aspeed-scu interrupt acknowledgement by directly writing to the
   register instead of a read-modify-write sequence

 - Use standard bitfirl helpers in the MIPS GIC driver instead of custom
   constructs

 - Fix the NVIC driver IPR register offset

 - Correctly drop the reference of the device node in the irq-bcm7120-l2
   driver

 - Fix the GICv3 ITS INVALL command by issueing a following SYNC command

 - Add a missing __init attribute to the init function of the Apple AIC
   driver

Link: https://lore.kernel.org/r/20211210133516.664497-1-maz@kernel.org
2 years agoMerge tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sat, 11 Dec 2021 01:28:02 +0000 (17:28 -0800)]
Merge tag 'for-5.16-rc4-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more regression fixes and stable patches, mostly one-liners.

  Regression fixes:

   - fix pointer/ERR_PTR mismatch returned from memdup_user

   - reset dedicated zoned mode relocation block group to avoid using it
     and filling it without any recourse

  Fixes:

   - handle a case to FITRIM range (also to make fstests/generic/260
     work)

   - fix warning when extent buffer state and pages get out of sync
     after an IO error

   - fix transaction abort when syncing due to missing mapping error set
     on metadata inode after inlining a compressed file

   - fix transaction abort due to tree-log and zoned mode interacting in
     an unexpected way

   - fix memory leak of additional extent data when qgroup reservation
     fails

   - do proper handling of slot search call when deleting root refs"

* tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling
  btrfs: zoned: clear data relocation bg on zone finish
  btrfs: free exchange changeset on failures
  btrfs: fix re-dirty process of tree-log nodes
  btrfs: call mapping_set_error() on btree inode with a write error
  btrfs: clear extent buffer uptodate when we fail to write it
  btrfs: fail if fstrim_range->start == U64_MAX
  btrfs: fix error pointer dereference in btrfs_ioctl_rm_dev_v2()

2 years agoMerge tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 11 Dec 2021 01:24:57 +0000 (17:24 -0800)]
Merge tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two cifs/smb3 fixes - one for stable, the other fixes a recently
  reported NTLMSSP auth problem"

* tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix ntlmssp auth when there is no key exchange
  cifs: Fix crash on unload of cifs_arc4.ko

2 years agoMerge tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Sat, 11 Dec 2021 01:17:53 +0000 (17:17 -0800)]
Merge tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux

Pull nfsd fixes from Bruce Fields:
 "Fix a race on startup and another in the delegation code.

  The latter has been around for years, but I suspect recent changes may
  have widened the race window a little, so I'd like to go ahead and get
  it in"

* tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix use-after-free due to delegation race
  nfsd: Fix nsfd startup race (again)

2 years agomm: bdi: initialize bdi_min_ratio when bdi is unregistered
Manjong Lee [Fri, 10 Dec 2021 22:47:11 +0000 (14:47 -0800)]
mm: bdi: initialize bdi_min_ratio when bdi is unregistered

Initialize min_ratio if it is set during bdi unregistration.  This can
prevent problems that may occur a when bdi is removed without resetting
min_ratio.

For example.
1) insert external sdcard
2) set external sdcard's min_ratio 70
3) remove external sdcard without setting min_ratio 0
4) insert external sdcard
5) set external sdcard's min_ratio 70 << error occur(can't set)

Because when an sdcard is removed, the present bdi_min_ratio value will
remain.  Currently, the only way to reset bdi_min_ratio is to reboot.

[akpm@linux-foundation.org: tweak comment and coding style]

Link: https://lkml.kernel.org/r/20211021161942.5983-1-mj0123.lee@samsung.com
Signed-off-by: Manjong Lee <mj0123.lee@samsung.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Changheun Lee <nanich.lee@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <seunghwan.hyun@samsung.com>
Cc: <sookwan7.kim@samsung.com>
Cc: <yt0928.kim@samsung.com>
Cc: <junho89.kim@samsung.com>
Cc: <jisoo2146.oh@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agohugetlbfs: fix issue of preallocation of gigantic pages can't work
Zhenguo Yao [Fri, 10 Dec 2021 22:47:08 +0000 (14:47 -0800)]
hugetlbfs: fix issue of preallocation of gigantic pages can't work

Preallocation of gigantic pages can't work bacause of commit
b5389086ad7b ("hugetlbfs: extend the definition of hugepages parameter
to support node allocation").  When nid is NUMA_NO_NODE(-1),
alloc_bootmem_huge_page will always return without doing allocation.
Fix this by adding more check.

Link: https://lkml.kernel.org/r/20211129133803.15653-1-yaozhenguo1@gmail.com
Fixes: b5389086ad7b ("hugetlbfs: extend the definition of hugepages parameter to support node allocation")
Signed-off-by: Zhenguo Yao <yaozhenguo1@gmail.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
Waiman Long [Fri, 10 Dec 2021 22:47:05 +0000 (14:47 -0800)]
mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()

All the calls to mod_objcg_mlstate(), get_obj_stock() and
put_obj_stock() are done by functions defined within the same "#ifdef
CONFIG_MEMCG_KMEM" compilation block.  When CONFIG_MEMCG_KMEM isn't
defined, the following compilation warnings will be issued [1] and [2].

  mm/memcontrol.c:785:20: warning: unused function 'mod_objcg_mlstate'
  mm/memcontrol.c:2113:33: warning: unused function 'get_obj_stock'

Fix these warning by moving those functions to under the same
CONFIG_MEMCG_KMEM compilation block.  There is no functional change.

[1] https://lore.kernel.org/lkml/202111272014.WOYNLUV6-lkp@intel.com/
[2] https://lore.kernel.org/lkml/202111280551.LXsWYt1T-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211129161140.306488-1-longman@redhat.com
Fixes: 559271146efc ("mm/memcg: optimize user context object stock access")
Fixes: 68ac5b3c8db2 ("mm/memcg: cache vmstat data in percpu memcg_stock_pcp")
Signed-off-by: Waiman Long <longman@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/slub: fix endianness bug for alloc/free_traces attributes
Gerald Schaefer [Fri, 10 Dec 2021 22:47:02 +0000 (14:47 -0800)]
mm/slub: fix endianness bug for alloc/free_traces attributes

On big-endian s390, the alloc/free_traces attributes produce endless
output, because of always 0 idx in slab_debugfs_show().

idx is de-referenced from *v, which points to a loff_t value, with

    unsigned int idx = *(unsigned int *)v;

This will only give the upper 32 bits on big-endian, which remain 0.

Instead of only fixing this de-reference, during discussion it seemed
more appropriate to change the seq_ops so that they use an explicit
iterator in private loc_track struct.

This patch adds idx to loc_track, which will also fix the endianness
bug.

Link: https://lore.kernel.org/r/20211117193932.4049412-1-gerald.schaefer@linux.ibm.com
Link: https://lkml.kernel.org/r/20211126171848.17534-1-gerald.schaefer@linux.ibm.com
Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reported-by: Steffen Maier <maier@linux.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: split test cases
SeongJae Park [Fri, 10 Dec 2021 22:46:59 +0000 (14:46 -0800)]
selftests/damon: split test cases

Currently, the single test program, debugfs.sh, contains all test cases
for DAMON.  When one of the cases fails, finding which case is failed
from the test log is not so easy, and all remaining tests will be
skipped.  To improve the situation, this commit splits the single
program into small test programs having their own names.

Link: https://lkml.kernel.org/r/20211201150440.1088-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: test debugfs file reads/writes with huge count
SeongJae Park [Fri, 10 Dec 2021 22:46:55 +0000 (14:46 -0800)]
selftests/damon: test debugfs file reads/writes with huge count

DAMON debugfs interface users were able to trigger warning by writing
some files with arbitrarily large 'count' parameter.  The issue is fixed
with commit db7a347b26fe ("mm/damon/dbgfs: use '__GFP_NOWARN' for
user-specified size buffer allocation").  This commit adds a test case
for the issue in DAMON selftests to avoid future regressions.

Link: https://lkml.kernel.org/r/20211201150440.1088-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: test wrong DAMOS condition ranges input
SeongJae Park [Fri, 10 Dec 2021 22:46:52 +0000 (14:46 -0800)]
selftests/damon: test wrong DAMOS condition ranges input

A patch titled "mm/damon/schemes: add the validity judgment of
thresholds"[1] makes DAMON debugfs interface to validate DAMON scheme
inputs.  This commit adds a test case for the validation logic in DAMON
selftests.

[1] https://lore.kernel.org/linux-mm/d78360e52158d786fcbf20bc62c96785742e76d3.1637239568.git.xhao@linux.alibaba.com/

Link: https://lkml.kernel.org/r/20211201150440.1088-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: test DAMON enabling with empty target_ids case
SeongJae Park [Fri, 10 Dec 2021 22:46:49 +0000 (14:46 -0800)]
selftests/damon: test DAMON enabling with empty target_ids case

DAMON debugfs didn't check empty targets when starting monitoring, and
the issue is fixed with commit b5ca3e83ddb0 ("mm/damon/dbgfs: add
adaptive_targets list check before enable monitor_on").  To avoid future
regression, this commit adds a test case for that in DAMON selftests.

Link: https://lkml.kernel.org/r/20211201150440.1088-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: skip test if DAMON is running
SeongJae Park [Fri, 10 Dec 2021 22:46:46 +0000 (14:46 -0800)]
selftests/damon: skip test if DAMON is running

Testing the DAMON debugfs files while DAMON is running makes no sense,
as any write to the debugfs files will fail.  This commit makes the test
be skipped in this case.

Link: https://lkml.kernel.org/r/20211201150440.1088-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/vaddr-test: remove unnecessary variables
SeongJae Park [Fri, 10 Dec 2021 22:46:43 +0000 (14:46 -0800)]
mm/damon/vaddr-test: remove unnecessary variables

A couple of test functions in DAMON virtual address space monitoring
primitives implementation has unnecessary damon_ctx variables.  This
commit removes those.

Link: https://lkml.kernel.org/r/20211201150440.1088-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/vaddr-test: split a test function having >1024 bytes frame size
SeongJae Park [Fri, 10 Dec 2021 22:46:40 +0000 (14:46 -0800)]
mm/damon/vaddr-test: split a test function having >1024 bytes frame size

On some configuration[1], 'damon_test_split_evenly()' kunit test
function has >1024 bytes frame size, so below build warning is
triggered:

      CC      mm/damon/vaddr.o
    In file included from mm/damon/vaddr.c:672:
    mm/damon/vaddr-test.h: In function 'damon_test_split_evenly':
    mm/damon/vaddr-test.h:309:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]
      309 | }
          | ^

This commit fixes the warning by separating the common logic in the
function.

[1] https://lore.kernel.org/linux-mm/202111182146.OV3C4uGr-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211201150440.1088-6-sj@kernel.org
Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/vaddr: remove an unnecessary warning message
SeongJae Park [Fri, 10 Dec 2021 22:46:37 +0000 (14:46 -0800)]
mm/damon/vaddr: remove an unnecessary warning message

The DAMON virtual address space monitoring primitive prints a warning
message for wrong DAMOS action.  However, it is not essential as the
code returns appropriate failure in the case.  This commit removes the
message to make the log clean.

Link: https://lkml.kernel.org/r/20211201150440.1088-5-sj@kernel.org
Fixes: 6dea8add4d28 ("mm/damon/vaddr: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/core: remove unnecessary error messages
SeongJae Park [Fri, 10 Dec 2021 22:46:34 +0000 (14:46 -0800)]
mm/damon/core: remove unnecessary error messages

DAMON core prints error messages when damon_target object creation is
failed or wrong monitoring attributes are given.  Because appropriate
error code is returned for each case, the messages are not essential.
Also, because the code path can be triggered with user-specified input,
this could result in kernel log mistakenly being messy.  To avoid the
case, this commit removes the messages.

Link: https://lkml.kernel.org/r/20211201150440.1088-4-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Fixes: b9a6ac4e4ede ("mm/damon: adaptively adjust regions")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/dbgfs: remove an unnecessary error message
SeongJae Park [Fri, 10 Dec 2021 22:46:31 +0000 (14:46 -0800)]
mm/damon/dbgfs: remove an unnecessary error message

When wrong scheme action is requested via the debugfs interface, DAMON
prints an error message.  Because the function returns error code, this
is not really needed.  Because the code path is triggered by the user
specified input, this can result in kernel log mistakenly being messy.
To avoid the case, this commit removes the message.

Link: https://lkml.kernel.org/r/20211201150440.1088-3-sj@kernel.org
Fixes: af122dd8f3c0 ("mm/damon/dbgfs: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/core: use better timer mechanisms selection threshold
SeongJae Park [Fri, 10 Dec 2021 22:46:28 +0000 (14:46 -0800)]
mm/damon/core: use better timer mechanisms selection threshold

Patch series "mm/damon: Trivial fixups and improvements".

This patchset contains trivial fixups and improvements for DAMON and its
kunit/kselftest tests.

This patch (of 11):

DAMON is using hrtimer if requested sleep time is <=100ms, while the
suggested threshold[1] is <=20ms.  This commit applies the threshold.

[1] Documentation/timers/timers-howto.rst

Link: https://lkml.kernel.org/r/20211201150440.1088-2-sj@kernel.org
Fixes: ee801b7dd7822 ("mm/damon/schemes: activate schemes based on a watermarks mechanism")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/core: fix fake load reports due to uninterruptible sleeps
SeongJae Park [Fri, 10 Dec 2021 22:46:25 +0000 (14:46 -0800)]
mm/damon/core: fix fake load reports due to uninterruptible sleeps

Because DAMON sleeps in uninterruptible mode, /proc/loadavg reports fake
load while DAMON is turned on, though it is doing nothing.  This can
confuse users[1].  To avoid the case, this commit makes DAMON sleeps in
idle mode.

[1] https://lore.kernel.org/all/11868371.O9o76ZdvQC@natalenko.name/

Link: https://lkml.kernel.org/r/20211126145015.15862-3-sj@kernel.org
Fixes: 2224d8485492 ("mm: introduce Data Access MONitor (DAMON)")
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: SeongJae Park <sj@kernel.org>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agotimers: implement usleep_idle_range()
SeongJae Park [Fri, 10 Dec 2021 22:46:22 +0000 (14:46 -0800)]
timers: implement usleep_idle_range()

Patch series "mm/damon: Fix fake /proc/loadavg reports", v3.

This patchset fixes DAMON's fake load report issue.  The first patch
makes yet another variant of usleep_range() for this fix, and the second
patch fixes the issue of DAMON by making it using the newly introduced
function.

This patch (of 2):

Some kernel threads such as DAMON could need to repeatedly sleep in
micro seconds level.  Because usleep_range() sleeps in uninterruptible
state, however, such threads would make /proc/loadavg reports fake load.

To help such cases, this commit implements a variant of usleep_range()
called usleep_idle_range().  It is same to usleep_range() but sets the
state of the current task as TASK_IDLE while sleeping.

Link: https://lkml.kernel.org/r/20211126145015.15862-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211126145015.15862-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: John Stultz <john.stultz@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agofilemap: remove PageHWPoison check from next_uptodate_page()
Matthew Wilcox (Oracle) [Fri, 10 Dec 2021 22:46:18 +0000 (14:46 -0800)]
filemap: remove PageHWPoison check from next_uptodate_page()

Pages are individually marked as suffering from hardware poisoning.
Checking that the head page is not hardware poisoned doesn't make
sense; we might be after a subpage.  We check each page individually
before we use it, so this was an optimisation gone wrong.  It will
cause us to fall back to the slow path when there was no need to do
that

Link: https://lkml.kernel.org/r/20211120174429.2596303-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomailmap: update email address for Guo Ren
Guo Ren [Fri, 10 Dec 2021 22:46:15 +0000 (14:46 -0800)]
mailmap: update email address for Guo Ren

The ren_guo@c-sky.com would be deprecated and use guoren@kernel.org as the
main email address.

Link: https://lkml.kernel.org/r/20211123022741.545541-1-guoren@kernel.org
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMAINTAINERS: update kdump maintainers
Dave Young [Fri, 10 Dec 2021 22:46:12 +0000 (14:46 -0800)]
MAINTAINERS: update kdump maintainers

Remove myself from kdump maintainers as I have no enough time to maintain
it now.  But I can review patches on demand though.

Link: https://lkml.kernel.org/r/YZyKilzKFsWJYdgn@dhcp-128-65.nay.redhat.com
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoIncrease default MLOCK_LIMIT to 8 MiB
Drew DeVault [Fri, 10 Dec 2021 22:46:09 +0000 (14:46 -0800)]
Increase default MLOCK_LIMIT to 8 MiB

This limit has not been updated since 2008, when it was increased to 64
KiB at the request of GnuPG.  Until recently, the main use-cases for this
feature were (1) preventing sensitive memory from being swapped, as in
GnuPG's use-case; and (2) real-time use-cases.  In the first case, little
memory is called for, and in the second case, the user is generally in a
position to increase it if they need more.

The introduction of IOURING_REGISTER_BUFFERS adds a third use-case:
preparing fixed buffers for high-performance I/O.  This use-case will take
as much of this memory as it can get, but is still limited to 64 KiB by
default, which is very little.  This increases the limit to 8 MB, which
was chosen fairly arbitrarily as a more generous, but still conservative,
default value.

It is also possible to raise this limit in userspace.  This is easily
done, for example, in the use-case of a network daemon: systemd, for
instance, provides for this via LimitMEMLOCK in the service file; OpenRC
via the rc_ulimit variables.  However, there is no established userspace
facility for configuring this outside of daemons: end-user applications do
not presently have access to a convenient means of raising their limits.

The buck, as it were, stops with the kernel.  It's much easier to address
it here than it is to bring it to hundreds of distributions, and it can
only realistically be relied upon to be high-enough by end-user software
if it is more-or-less ubiquitous.  Most distros don't change this
particular rlimit from the kernel-supplied default value, so a change here
will easily provide that ubiquity.

Link: https://lkml.kernel.org/r/20211028080813.15966-1-sir@cmpwn.com
Signed-off-by: Drew DeVault <sir@cmpwn.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andrew Dona-Couch <andrew@donacou.ch>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMerge tag 'thermal-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 11 Dec 2021 01:02:46 +0000 (17:02 -0800)]
Merge tag 'thermal-5.16-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Fix the definition of one of the Tiger Lake MMIO registers in the
  int340x thermal driver (Sumeet Pawnikar)"

* tag 'thermal-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: int340x: Fix VCoRefLow MMIO bit offset for TGL

2 years agoMerge tag 'acpi-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 10 Dec 2021 22:43:16 +0000 (14:43 -0800)]
Merge tag 'acpi-5.16-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Create the output directory for the ACPI tools during build if it has
  not been present before and prevent the compilation from failing in
  that case (Chen Yu)"

* tag 'acpi-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: tools: Fix compilation when output directory is not present

2 years agoMerge tag 'pm-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 10 Dec 2021 22:36:06 +0000 (14:36 -0800)]
Merge tag 'pm-5.16-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a kernedoc comment that doesn't match the behavior of the function
  documented by it"

* tag 'pm-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: runtime: Fix pm_runtime_active() kerneldoc comment

2 years agoMerge tag 'hwmon-for-v5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 10 Dec 2021 22:31:45 +0000 (14:31 -0800)]
Merge tag 'hwmon-for-v5.16-rc5' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - In the pwm-fan driver, ensure that the internal pwm state matches the
   state assumed by the pwm code.

 - Avoid EREMOTEIO errors in sht4 driver

 - In the nct6775 driver, make it explicit that the register value
   passed to nct6775_asuswmi_read() is an 8-bit value

 - Avoid WARNing in dell-smm driver removal after failing to create
   /proc/i8k

 - Stop using a plain integer as NULL pointer in corsair-psu driver

* tag 'hwmon-for-v5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pwm-fan) Ensure the fan going on in .probe()
  hwmon: (sht4x) Fix EREMOTEIO errors
  hwmon: (nct6775) mask out bank number in nct6775_wmi_read_value()
  hwmon: (dell-smm) Fix warning on /proc/i8k creation error
  hwmon: (corsair-psu) fix plain integer used as NULL pointer

2 years agoMerge tag 'trace-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 10 Dec 2021 22:24:05 +0000 (14:24 -0800)]
Merge tag 'trace-v5.16-rc4' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Tracing, ftrace and tracefs fixes:

   - Have tracefs honor the gid mount option

   - Have new files in tracefs inherit the parent ownership

   - Have direct_ops unregister when it has no more functions

   - Properly clean up the ops when unregistering multi direct ops

   - Add a sample module to test the multiple direct ops

   - Fix memory leak in error path of __create_synth_event()"

* tag 'trace-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix possible memory leak in __create_synth_event() error path
  ftrace/samples: Add module to test multi direct modify interface
  ftrace: Add cleanup to unregister_ftrace_direct_multi
  ftrace: Use direct_ops hash in unregister_ftrace_direct
  tracefs: Set all files to the same group ownership as the mount option
  tracefs: Have new files inherit the ownership of their parent

2 years agoMerge tag 'aio-poll-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebigg...
Linus Torvalds [Fri, 10 Dec 2021 22:15:39 +0000 (14:15 -0800)]
Merge tag 'aio-poll-for-linus' of git://git./linux/kernel/git/ebiggers/linux

Pull aio poll fixes from Eric Biggers:
 "Fix three bugs in aio poll, and one issue with POLLFREE more broadly:

   - aio poll didn't handle POLLFREE, causing a use-after-free.

   - aio poll could block while the file is ready.

   - aio poll called eventfd_signal() when it isn't allowed.

   - POLLFREE didn't handle multiple exclusive waiters correctly.

  This has been tested with the libaio test suite, as well as with test
  programs I wrote that reproduce the first two bugs. I am sending this
  pull request myself as no one seems to be maintaining this code"

* tag 'aio-poll-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  aio: Fix incorrect usage of eventfd_signal_allowed()
  aio: fix use-after-free due to missing POLLFREE handling
  aio: keep poll requests on waitqueue until completed
  signalfd: use wake_up_pollfree()
  binder: use wake_up_pollfree()
  wait: add wake_up_pollfree()

2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 10 Dec 2021 22:09:12 +0000 (14:09 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "More x86 fixes:

   - Logic bugs in CR0 writes and Hyper-V hypercalls

   - Don't use Enlightened MSR Bitmap for L3

   - Remove user-triggerable WARN

  Plus a few selftest fixes and a regression test for the
  user-triggerable WARN"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  selftests: KVM: Add test to verify KVM doesn't explode on "bad" I/O
  KVM: x86: Don't WARN if userspace mucks with RCX during string I/O exit
  KVM: X86: Raise #GP when clearing CR0_PG in 64 bit mode
  selftests: KVM: avoid failures due to reserved HyperTransport region
  KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req
  KVM: x86: Wait for IPIs to be delivered when handling Hyper-V TLB flush hypercall
  KVM: x86: selftests: svm_int_ctl_test: fix intercept calculation
  KVM: nVMX: Don't use Enlightened MSR Bitmap for L3

2 years agoi2c: mpc: Use atomic read and fix break condition
Chris Packham [Tue, 7 Dec 2021 04:21:44 +0000 (17:21 +1300)]
i2c: mpc: Use atomic read and fix break condition

Maxime points out that the polling code in mpc_i2c_isr should use the
_atomic API because it is called in an irq context and that the
behaviour of the MCF bit is that it is 1 when the byte transfer is
complete. All of this means the original code was effectively a
udelay(100).

Fix this by using readb_poll_timeout_atomic() and removing the negation
of the break condition.

Fixes: 4a8ac5e45cda ("i2c: mpc: Poll for MCF")
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2 years agoio-wq: check for wq exit after adding new worker task_work
Jens Axboe [Fri, 10 Dec 2021 15:29:30 +0000 (08:29 -0700)]
io-wq: check for wq exit after adding new worker task_work

We check IO_WQ_BIT_EXIT before attempting to create a new worker, and
wq exit cancels pending work if we have any. But it's possible to have
a race between the two, where creation checks exit finding it not set,
but we're in the process of exiting. The exit side will cancel pending
creation task_work, but there's a gap where we add task_work after we've
canceled existing creations at exit time.

Fix this by checking the EXIT bit post adding the creation task_work.
If it's set, run the same cancelation that exit does.

Reported-and-tested-by: syzbot+b60c982cb0efc5e05a47@syzkaller.appspotmail.com
Reviewed-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoio_uring: ensure task_work gets run as part of cancelations
Jens Axboe [Thu, 9 Dec 2021 15:54:29 +0000 (08:54 -0700)]
io_uring: ensure task_work gets run as part of cancelations

If we successfully cancel a work item but that work item needs to be
processed through task_work, then we can be sleeping uninterruptibly
in io_uring_cancel_generic() and never process it. Hence we don't
make forward progress and we end up with an uninterruptible sleep
warning.

While in there, correct a comment that should be IFF, not IIF.

Reported-and-tested-by: syzbot+21e6887c0be14181206d@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoMerge tag 'pci-v5.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Fri, 10 Dec 2021 19:56:05 +0000 (11:56 -0800)]
Merge tag 'pci-v5.16-fixes-2' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Revert emulation of Marvell Armada A3720 expansion ROM because it
   doesn't work as expected (Marek Behún)

 - Assert PERST# in Apple M1 driver to fix initialization when booting
   from bootloaders using PCIe, such as U-Boot (Marc Zyngier)

 - Describe PERST# as active low in Apple T8103 DT and update driver to
   match (Marc Zyngier)

* tag 'pci-v5.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: apple: Fix PERST# polarity
  arm64: dts: apple: t8103: Mark PCIe PERST# polarity active low in DT
  PCI: apple: Follow the PCIe specifications when resetting the port
  Revert "PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge"