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2022-02-09spi: make remove callback a void functionMark Brown631-2703/+4888
Merge series from Uwe Kleine-König <u.kleine-koenig@pengutronix.de>: this series goal is to change the spi remove callback's return value to void. After numerous patches nearly all drivers already return 0 unconditionally. The four first patches in this series convert the remaining three drivers to return 0, the final patch changes the remove prototype and converts all implementers. base-commit: 26291c54e111ff6ba87a164d85d4a4e134b7315c
2022-02-09spi: make remove callback a void functionUwe Kleine-König191-545/+197
The value returned by an spi driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Claudius Heine <ch@denx.de> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC Acked-by: Marcus Folkesson <marcus.folkesson@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-6-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-09platform/chrome: cros_ec: Make cros_ec_unregister() return voidUwe Kleine-König5-7/+11
Up to now cros_ec_unregister() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c, platform and spi remove callbacks is ignored anyway. Reviewed-by: Guenter Roeck <groeck@chromium.org> Link: https://lore.kernel.org/r/20211020071753.wltjslmimb6wtlp5@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-5-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-09tpm: st33zp24: Make st33zp24_remove() a void functionUwe Kleine-König4-11/+4
Up to now st33zp24_remove() returns zero unconditionally. Make it return no value instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Link: https://lore.kernel.org/r/20220104231103.227924-1-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-4-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-09staging: fbtft: Deduplicate driver registration macrosUwe Kleine-König1-57/+36
The two macros FBTFT_REGISTER_DRIVER and FBTFT_REGISTER_SPI_DRIVER contain quite some duplication: Both define an spi driver and an of device table and the differences are quite subtle. So create two new macros and use both twice. Link: https://lore.kernel.org/r/20220118181338.207943-2-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-3-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-09staging: fbtft: Fix error path in fbtft_driver_module_init()Uwe Kleine-König1-1/+4
If registering the platform driver fails, the function must not return without undoing the spi driver registration first. Fixes: c296d5f9957c ("staging: fbtft: core support") Link: https://lore.kernel.org/r/20220118181338.207943-1-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-2-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: Add compatible for Mediatek MT8186Mark Brown4-101/+160
Merge series from Leilk Liu <leilk.liu@mediatek.com>: This is more YAML conversion than new compatible.
2022-02-08spi: tegra210-quad: Fix missin IRQ check in tegra_qspi_probeMiaoqian Lin1-0/+2
This func misses checking for platform_get_irq()'s call and may passes the negative error codes to request_threaded_irq(), which takes unsigned IRQ #, causing it to fail with -EINVAL, overriding an original error code. Stop calling request_threaded_irq() with invalid IRQ #s. Fixes: 921fc1838fb0 ("spi: tegra210-quad: Add support for Tegra210 QSPI controller") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220128165956.27821-1-linmq006@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: Fix test error for sp7021.Li-hao Kuo1-4/+2
Remove the include path and modify parameters for fix error for bt binding test Fixes: a708078eeb99 ("spi: Add Sunplus SP7021 schema") Signed-off-by: Li-hao Kuo <lhjeff911@gmail.com> Link: https://lore.kernel.org/r/b8a94fbfcab68b1279b09b6297099310c209927b.1644198244.git.lhjeff911@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: tegra114: Add missing IRQ check in tegra_spi_probeMiaoqian Lin1-0/+4
This func misses checking for platform_get_irq()'s call and may passes the negative error codes to request_threaded_irq(), which takes unsigned IRQ #, causing it to fail with -EINVAL, overriding an original error code. Stop calling request_threaded_irq() with invalid IRQ #s. Fixes: f333a331adfa ("spi/tegra114: add spi driver") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220128165238.25615-1-linmq006@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: ath79: add mem_ops for fast-readLuiz Angelo Daros de Luca1-0/+34
Reading from memory is 3x faster than bit-bang read operation. Also, for tl-wr2543nd, the bit-bang read was sporadically returning random data, possibly a HW defect, while fast-read works as expected. Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com> Link: https://lore.kernel.org/r/20220129040453.8476-1-luizluca@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: Modify irq request position and modify parametersLi-hao Kuo1-32/+31
- Change irq request position to the back. - Add temporary varilable and setting (as suggested by Mr. Andy Shevchenko) Fixes: f62ca4e2a863 ("spi: Add spi driver for Sunplus SP7021") Signed-off-by: Li-hao Kuo <lhjeff911@gmail.com> Link: https://lore.kernel.org/r/a94e3b123773fe303221d2bd2e4ce36ffa905a1c.1644198957.git.lhjeff911@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: spidev: prevent spidev->speed_hz from being zeroDan Carpenter1-12/+19
A zero value for spi->max_speed_hz or spidev->speed_hz does not make sense and trying to set that can lead to divide by zero crashes in a some of the drivers. drivers/spi/spi-s3c64xx.c:874 s3c64xx_spi_setup() error: potential divide by zero bug '/ spi->max_speed_hz'. drivers/spi/spi-fsl-dspi.c:613 hz_to_spi_baud() error: potential divide by zero bug '/ speed_hz'. drivers/spi/spi-xlp.c:146 xlp_spi_setup() error: potential divide by zero bug '/ (spi->max_speed_hz)'. drivers/spi/spi-orion.c:162 orion_spi_baudrate_set() error: potential divide by zero bug '/ speed'. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20220125065202.GA8807@kili Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: Add compatible for Mediatek MT8186Leilk Liu1-0/+1
This commit adds dt-binding documentation of spi bus for Mediatek MT8186 SoC Platform. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220125012330.13449-4-leilk.liu@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: Convert spi-mt65xx to json-schemaLeilk Liu2-68/+101
Convert Mediatek ARM SOC's SPI Master controller binding to json-schema format. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220125012330.13449-3-leilk.liu@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-08spi: Convert spi-slave-mt27xx to json-schemaLeilk Liu2-33/+58
Convert Mediatek ARM SOC's SPI Slave controller binding to json-schema format. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220125012330.13449-2-leilk.liu@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-03spi: dt-bindings: add mising description type to reg propertyDavid Heidelberg1-2/+2
Added missing description type. Fixes warning: Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml: properties:reg:items: 'anyOf' conditional failed Fixes: a708078eeb99 ("spi: Add Sunplus SP7021 schema") Signed-off-by: David Heidelberg <david@ixit.cz> Link: https://lore.kernel.org/r/20220202104715.27839-1-david@ixit.cz Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-02spi: mpc512x-psc: Fix compile errorsLinus Walleij1-2/+1
My patch created compilation bugs in the MPC512x-PSC driver. Fix them up. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Anatolij Gustschin <agust@denx.de> Cc: linuxppc-dev@lists.ozlabs.org Reported-by: kernel test robot <lkp@intel.com> Fixes: 2818824ced4b (" spi: mpc512x-psc: Convert to use GPIO descriptors") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220201234535.569973-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-02spi: Replace acpi_bus_get_device()Rafael J. Wysocki1-2/+2
Replace acpi_bus_get_device() that is going to be dropped with acpi_fetch_acpi_dev(). No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/2231987.ElGaqSPkdT@kreacher Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-02Merge remote-tracking branch 'spi/for-5.18' into spi-5.18Mark Brown0-0/+0
2022-02-01spi: Enhance and export helpers for ACPI resourcesMark Brown2-16/+141
Merge series from Stefan Binding <sbinding@opensource.cirrus.com>: This series enhances the helpers for ACPI resources to cope with multiple resources and exports them for use in the x86 platform code's multi-instantiate driver.
2022-02-01spi: Add API to count spi acpi resourcesStefan Binding2-0/+41
Some ACPI nodes may have more than one Spi Resource. To be able to handle these case, its necessary to have a way of counting these resources. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-5-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Support selection of the index of the ACPI Spi Resource before allocStefan Binding2-8/+46
If a node contains more than one SPI resource it may be necessary to use an index to select which one you want to allocate a spi device for. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-4-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Create helper API to lookup ACPI info for spi deviceStefan Binding2-10/+42
This can then be used to find a spi resource inside an ACPI node, and allocate a spi device. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-3-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Make spi_alloc_device and spi_add_device public againStefan Binding2-2/+16
This functions were previously made private since they were not used. However, these functions will be needed again. Partial revert of commit da21fde0fdb3 ("spi: Make several public functions private to spi.c") Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-2-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Enhance and export helpers for ACPI resourcesMark Brown2-16/+141
Merge series from Stefan Binding <sbinding@opensource.cirrus.com>: This series enhances the helpers for ACPI resources to cope with multiple resources and exports them for use in the x86 platform code's multi-instantiate driver.
2022-02-01spi: Add API to count spi acpi resourcesStefan Binding2-0/+41
Some ACPI nodes may have more than one Spi Resource. To be able to handle these case, its necessary to have a way of counting these resources. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-5-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Support selection of the index of the ACPI Spi Resource before allocStefan Binding2-8/+46
If a node contains more than one SPI resource it may be necessary to use an index to select which one you want to allocate a spi device for. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-4-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Create helper API to lookup ACPI info for spi deviceStefan Binding2-10/+42
This can then be used to find a spi resource inside an ACPI node, and allocate a spi device. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-3-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: Make spi_alloc_device and spi_add_device public againStefan Binding2-2/+16
This functions were previously made private since they were not used. However, these functions will be needed again. Partial revert of commit da21fde0fdb3 ("spi: Make several public functions private to spi.c") Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-2-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: bcm2835aux: Convert to use GPIO descriptorsLinus Walleij1-17/+4
This one is pretty straight forward to switch over, the driver already relies on inspecting cs_gpio just check cs_gpiod instead and stop the special handling of requesting the GPIO and stuff the core will take care of. Cc: Lukas Wunner <lukas@wunner.de> Cc: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220201012956.563272-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-01spi: st-ssc4: Covert to use GPIO descriptorsLinus Walleij1-27/+4
This switches the ST SSC SPI controller to use GPIO descriptors from the core instead of GPIO numbers. It is already using the core parsing of GPIO numbers so the switch is pretty straight-forward. Cc: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220201012654.562578-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-31spi: sp7201: Fix compiler warnings郭力豪1-4/+6
Fix compiler warming for kernel test Fixes: f62ca4e2a863 ("spi: Add spi driver for Sunplus SP7021") Signed-off-by: Li-hao Kuo <lhjeff911@gmail.com> Link: https://lore.kernel.org/r/CAGcXWkzM6wbhNFLbYoijq7iS_76nYVod1ySFEDu-BRgnBokEQA@mail.gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-31spi: pic32: Convert to use GPIO descriptorsLinus Walleij1-5/+4
The driver already relies on the core looking up GPIO lines from the core, so this is trivial to switch over to using GPIO descriptors. Cc: Purna Chandra Mandal <purna.mandal@microchip.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220122004846.374930-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-31spi: mpc512x-psc: Convert to use GPIO descriptorsLinus Walleij1-28/+18
This driver is already relying on the core to provide valid GPIO numbers in spi->cs_gpio through of_spi_get_gpio_numbers(), so we can switch to letting the core use GPIO descriptors instead. The driver was assigning a local function to the custom chipselect callback, but I chose to just open code the gpiod setting instead, this is easier to read. The only platform that overrides the cs_control callback is the mpc832x_rdb. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Anatolij Gustschin <agust@denx.de> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220120002600.216667-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-31spi: mt65xx: Convert to GPIO descriptorsLinus Walleij1-17/+6
The MT65xx driver was already relying on the core to get some GPIO line numbers so it can be (hopefully) trivially converted to use descriptors instead. Cc: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Cc: Mason Zhang <Mason.Zhang@mediatek.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Peter Hess <peter.hess@ph-home.de> Cc: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220122003302.374304-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-31spi: pxa2xx_spi: Convert to use GPIO descriptorsLinus Walleij12-114/+117
This converts the PXA2xx SPI driver to use GPIO descriptors exclusively to retrieve GPIO chip select lines. The device tree and ACPI paths of the driver already use descriptors, hence ->use_gpio_descriptors is already set and this codepath is well tested. Convert all the PXA boards providing chip select GPIOs as platform data and drop the old GPIO chipselect handling in favor of the core managing it exclusively. Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220125005836.494807-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-30Linux 5.17-rc2v5.17-rc2Linus Torvalds1-1/+1
2022-01-30Merge tag 'irq_urgent_for_v5.17_rc2_p2' of ↵Linus Torvalds6-36/+121
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Borislav Petkov: - Drop an unused private data field in the AIC driver - Various fixes to the realtek-rtl driver - Make the GICv3 ITS driver compile again in !SMP configurations - Force reset of the GICv3 ITSs at probe time to avoid issues during kexec - Yet another kfree/bitmap_free conversion - Various DT updates (Renesas, SiFive) * tag 'irq_urgent_for_v5.17_rc2_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: dt-bindings: interrupt-controller: sifive,plic: Group interrupt tuples dt-bindings: interrupt-controller: sifive,plic: Fix number of interrupts dt-bindings: irqchip: renesas-irqc: Add R-Car V3U support irqchip/gic-v3-its: Reset each ITS's BASERn register before probe irqchip/gic-v3-its: Fix build for !SMP irqchip/loongson-pch-ms: Use bitmap_free() to free bitmap irqchip/realtek-rtl: Service all pending interrupts irqchip/realtek-rtl: Fix off-by-one in routing irqchip/realtek-rtl: Map control data to virq irqchip/apple-aic: Drop unused ipi_hwirq field
2022-01-30Merge tag 'perf_urgent_for_v5.17_rc2_p2' of ↵Linus Torvalds1-4/+19
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Borislav Petkov: - Prevent accesses to the per-CPU cgroup context list from another CPU except the one it belongs to, to avoid list corruption - Make sure parent events are always woken up to avoid indefinite hangs in the traced workload * tag 'perf_urgent_for_v5.17_rc2_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix cgroup event list management perf: Always wake the parent event
2022-01-30Merge tag 'sched_urgent_for_v5.17_rc2_p2' of ↵Linus Torvalds1-4/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Borislav Petkov: "Make sure the membarrier-rseq fence commands are part of the reported set when querying membarrier(2) commands through MEMBARRIER_CMD_QUERY" * tag 'sched_urgent_for_v5.17_rc2_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/membarrier: Fix membarrier-rseq fence command missing from query bitmask
2022-01-30Merge tag 'x86_urgent_for_v5.17_rc2' of ↵Linus Torvalds2-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Add another Intel CPU model to the list of CPUs supporting the processor inventory unique number - Allow writing to MCE thresholding sysfs files again - a previous change had accidentally disabled it and no one noticed. Goes to show how much is this stuff used * tag 'x86_urgent_for_v5.17_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add Xeon Icelake-D to list of CPUs that support PPIN x86/MCE/AMD: Allow thresholding interface updates after init
2022-01-30Merge branch 'akpm' (patches from Andrew)Linus Torvalds12-70/+91
Merge misc fixes from Andrew Morton: "12 patches. Subsystems affected by this patch series: sysctl, binfmt, ia64, mm (memory-failure, folios, kasan, and psi), selftests, and ocfs2" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: ocfs2: fix a deadlock when commit trans jbd2: export jbd2_journal_[grab|put]_journal_head psi: fix "defined but not used" warnings when CONFIG_PROC_FS=n psi: fix "no previous prototype" warnings when CONFIG_CGROUPS=n mm, kasan: use compare-exchange operation to set KASAN page tag kasan: test: fix compatibility with FORTIFY_SOURCE tools/testing/scatterlist: add missing defines mm: page->mapping folio->mapping should have the same offset memory-failure: fetch compound_head after pgmap_pfn_valid() ia64: make IA64_MCA_RECOVERY bool instead of tristate binfmt_misc: fix crash when load/unload module include/linux/sysctl.h: fix register_sysctl_mount_point() return type
2022-01-30ocfs2: fix a deadlock when commit transJoseph Qi1-14/+11
commit 6f1b228529ae introduces a regression which can deadlock as follows: Task1: Task2: jbd2_journal_commit_transaction ocfs2_test_bg_bit_allocatable spin_lock(&jh->b_state_lock) jbd_lock_bh_journal_head __jbd2_journal_remove_checkpoint spin_lock(&jh->b_state_lock) jbd2_journal_put_journal_head jbd_lock_bh_journal_head Task1 and Task2 lock bh->b_state and jh->b_state_lock in different order, which finally result in a deadlock. So use jbd2_journal_[grab|put]_journal_head instead in ocfs2_test_bg_bit_allocatable() to fix it. Link: https://lkml.kernel.org/r/20220121071205.100648-3-joseph.qi@linux.alibaba.com Fixes: 6f1b228529ae ("ocfs2: fix race between searching chunks and release journal_head from buffer_head") Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reported-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Tested-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Jun Piao <piaojun@huawei.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30jbd2: export jbd2_journal_[grab|put]_journal_headJoseph Qi1-0/+2
Patch series "ocfs2: fix a deadlock case". This fixes a deadlock case in ocfs2. We firstly export jbd2 symbols jbd2_journal_[grab|put]_journal_head as preparation and later use them in ocfs2 insread of jbd_[lock|unlock]_bh_journal_head to fix the deadlock. This patch (of 2): This exports symbols jbd2_journal_[grab|put]_journal_head, which will be used outside modules, e.g. ocfs2. Link: https://lkml.kernel.org/r/20220121071205.100648-2-joseph.qi@linux.alibaba.com Signed-off-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: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Cc: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30psi: fix "defined but not used" warnings when CONFIG_PROC_FS=nSuren Baghdasaryan1-38/+41
When CONFIG_PROC_FS is disabled psi code generates the following warnings: kernel/sched/psi.c:1364:30: warning: 'psi_cpu_proc_ops' defined but not used [-Wunused-const-variable=] 1364 | static const struct proc_ops psi_cpu_proc_ops = { | ^~~~~~~~~~~~~~~~ kernel/sched/psi.c:1355:30: warning: 'psi_memory_proc_ops' defined but not used [-Wunused-const-variable=] 1355 | static const struct proc_ops psi_memory_proc_ops = { | ^~~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1346:30: warning: 'psi_io_proc_ops' defined but not used [-Wunused-const-variable=] 1346 | static const struct proc_ops psi_io_proc_ops = { | ^~~~~~~~~~~~~~~ Make definitions of these structures and related functions conditional on CONFIG_PROC_FS config. Link: https://lkml.kernel.org/r/20220119223940.787748-3-surenb@google.com Fixes: 0e94682b73bf ("psi: introduce psi monitor") Signed-off-by: Suren Baghdasaryan <surenb@google.com> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30psi: fix "no previous prototype" warnings when CONFIG_CGROUPS=nSuren Baghdasaryan1-6/+5
When CONFIG_CGROUPS is disabled psi code generates the following warnings: kernel/sched/psi.c:1112:21: warning: no previous prototype for 'psi_trigger_create' [-Wmissing-prototypes] 1112 | struct psi_trigger *psi_trigger_create(struct psi_group *group, | ^~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1182:6: warning: no previous prototype for 'psi_trigger_destroy' [-Wmissing-prototypes] 1182 | void psi_trigger_destroy(struct psi_trigger *t) | ^~~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1249:10: warning: no previous prototype for 'psi_trigger_poll' [-Wmissing-prototypes] 1249 | __poll_t psi_trigger_poll(void **trigger_ptr, | ^~~~~~~~~~~~~~~~ Change the declarations of these functions in the header to provide the prototypes even when they are unused. Link: https://lkml.kernel.org/r/20220119223940.787748-2-surenb@google.com Fixes: 0e94682b73bf ("psi: introduce psi monitor") Signed-off-by: Suren Baghdasaryan <surenb@google.com> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30mm, kasan: use compare-exchange operation to set KASAN page tagPeter Collingbourne1-5/+12
It has been reported that the tag setting operation on newly-allocated pages can cause the page flags to be corrupted when performed concurrently with other flag updates as a result of the use of non-atomic operations. Fix the problem by using a compare-exchange loop to update the tag. Link: https://lkml.kernel.org/r/20220120020148.1632253-1-pcc@google.com Link: https://linux-review.googlesource.com/id/I456b24a2b9067d93968d43b4bb3351c0cec63101 Fixes: 2813b9c02962 ("kasan, mm, arm64: tag non slab memory allocated via pagealloc") Signed-off-by: Peter Collingbourne <pcc@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30kasan: test: fix compatibility with FORTIFY_SOURCEMarco Elver1-0/+5
With CONFIG_FORTIFY_SOURCE enabled, string functions will also perform dynamic checks using __builtin_object_size(ptr), which when failed will panic the kernel. Because the KASAN test deliberately performs out-of-bounds operations, the kernel panics with FORTIFY_SOURCE, for example: | kernel BUG at lib/string_helpers.c:910! | invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI | CPU: 1 PID: 137 Comm: kunit_try_catch Tainted: G B 5.16.0-rc3+ #3 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 | RIP: 0010:fortify_panic+0x19/0x1b | ... | Call Trace: | kmalloc_oob_in_memset.cold+0x16/0x16 | ... Fix it by also hiding `ptr` from the optimizer, which will ensure that __builtin_object_size() does not return a valid size, preventing fortified string functions from panicking. Link: https://lkml.kernel.org/r/20220124160744.1244685-1-elver@google.com Signed-off-by: Marco Elver <elver@google.com> Reported-by: Nico Pache <npache@redhat.com> Reviewed-by: Nico Pache <npache@redhat.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30tools/testing/scatterlist: add missing definesMaor Gottlieb1-1/+2
The cited commits replaced preemptible with pagefault_disabled and flush_kernel_dcache_page with flush_dcache_page respectively, hence need to update the corresponding defines in the test. scatterlist.c: In function ‘sg_miter_stop’: scatterlist.c:919:4: warning: implicit declaration of function ‘flush_dcache_page’ [-Wimplicit-function-declaration] flush_dcache_page(miter->page); ^~~~~~~~~~~~~~~~~ In file included from linux/scatterlist.h:8:0, from scatterlist.c:9: scatterlist.c:922:18: warning: implicit declaration of function ‘pagefault_disabled’ [-Wimplicit-function-declaration] WARN_ON_ONCE(!pagefault_disabled()); ^ linux/mm.h:23:25: note: in definition of macro ‘WARN_ON_ONCE’ int __ret_warn_on = !!(condition); \ ^~~~~~~~~ Link: https://lkml.kernel.org/r/20220118082105.1737320-1-maorg@nvidia.com Fixes: 723aca208516 ("mm/scatterlist: replace the !preemptible warning in sg_miter_stop()") Fixes: 0e84f5dbf8d6 ("scatterlist: replace flush_kernel_dcache_page with flush_dcache_page") Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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