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2022-10-18Revert "pinctrl: pinctrl-zynqmp: Add support for output-enable and ↵Sai Krishna Potthuri
bias-high-impedance" This reverts commit ad2bea79ef0144043721d4893eef719c907e2e63. On systems with older PMUFW (Xilinx ZynqMP Platform Management Firmware) using these pinctrl properties can cause system hang because there is missing feature autodetection. When this feature is implemented in the PMUFW, support for these two properties should bring back. Cc: stable@vger.kernel.org Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com> Acked-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20221017130303.21746-2-sai.krishna.potthuri@amd.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-10-18scsi: lpfc: Fix memory leak in lpfc_create_port()Rafael Mendonca
Commit 5e633302ace1 ("scsi: lpfc: vmid: Add support for VMID in mailbox command") introduced allocations for the VMID resources in lpfc_create_port() after the call to scsi_host_alloc(). Upon failure on the VMID allocations, the new code would branch to the 'out' label, which returns NULL without unwinding anything, thus skipping the call to scsi_host_put(). Fix the problem by creating a separate label 'out_free_vmid' to unwind the VMID resources and make the 'out_put_shost' label call only scsi_host_put(), as was done before the introduction of allocations for VMID. Fixes: 5e633302ace1 ("scsi: lpfc: vmid: Add support for VMID in mailbox command") Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com> Link: https://lore.kernel.org/r/20220916035908.712799-1-rafaelmendsr@gmail.com Reviewed-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-18scsi: core: Restrict legal sdev_state transitions via sysfsUday Shankar
Userspace can currently write to sysfs to transition sdev_state to RUNNING or OFFLINE from any source state. This causes issues because proper transitioning out of some states involves steps besides just changing sdev_state, so allowing userspace to change sdev_state regardless of the source state can result in inconsistencies; e.g. with ISCSI we can end up with sdev_state == SDEV_RUNNING while the device queue is quiesced. Any task attempting I/O on the device will then hang, and in more recent kernels, iscsid will hang as well. More detail about this bug is provided in my first attempt: https://groups.google.com/g/open-iscsi/c/PNKca4HgPDs/m/CXaDkntOAQAJ Link: https://lore.kernel.org/r/20220924000241.2967323-1-ushankar@purestorage.com Signed-off-by: Uday Shankar <ushankar@purestorage.com> Suggested-by: Mike Christie <michael.christie@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-18ata: ahci_qoriq: Fix compilation warningDamien Le Moal
When compiling with clang and W=1, the following warning is generated: drivers/ata/ahci_qoriq.c:283:22: error: cast to smaller integer type 'enum ahci_qoriq_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] qoriq_priv->type = (enum ahci_qoriq_type)of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by using a cast to unsigned long to match the "void *" type size of of_id->data. Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2022-10-18ata: ahci_imx: Fix compilation warningDamien Le Moal
When compiling with clang and W=1, the following warning is generated: drivers/ata/ahci_imx.c:1070:18: error: cast to smaller integer type 'enum ahci_imx_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] imxpriv->type = (enum ahci_imx_type)of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by using a cast to unsigned long to match the "void *" type size of of_id->data. Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2022-10-18ata: ahci_xgene: Fix compilation warningDamien Le Moal
When compiling with clang and W=1, the following warning is generated: drivers/ata/ahci_xgene.c:788:14: error: cast to smaller integer type 'enum xgene_ahci_version' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] version = (enum xgene_ahci_version) of_devid->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by using a cast to unsigned long to match the "void *" type size of of_devid->data. Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2022-10-18ata: ahci_brcm: Fix compilation warningDamien Le Moal
When compiling with clang and W=1, the following warning is generated: drivers/ata/ahci_brcm.c:451:18: error: cast to smaller integer type 'enum brcm_ahci_version' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] priv->version = (enum brcm_ahci_version)of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by using a cast to unsigned long to match the "void *" type size of of_id->data. Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2022-10-18ata: sata_rcar: Fix compilation warningDamien Le Moal
When compiling with clang and W=1, the following warning is generated: drivers/ata/sata_rcar.c:878:15: error: cast to smaller integer type 'enum sata_rcar_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] priv->type = (enum sata_rcar_type)of_device_get_match_data(dev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by using a cast to unsigned long to match the "void *" type size returned by of_device_get_match_data(). Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
2022-10-17hwmon/coretemp: Handle large core ID valueZhang Rui
The coretemp driver supports up to a hard-coded limit of 128 cores. Today, the driver can not support a core with an ID above that limit. Yet, the encoding of core ID's is arbitrary (BIOS APIC-ID) and so they may be sparse and they may be large. Update the driver to map arbitrary core ID numbers into appropriate array indexes so that 128 cores can be supported, no matter the encoding of core ID's. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Len Brown <len.brown@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20221014090147.1836-3-rui.zhang@intel.com
2022-10-17Merge tag 'v6.1-p2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "This fixes an issue exposed by the recent change to feed untrusted sources into /dev/random" * tag 'v6.1-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: hwrng: bcm2835 - use hwrng_msleep() instead of cpu_relax()
2022-10-17Revert "PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro"Jon Hunter
This reverts commit 8bb7ff12a91429eb76e093b517ae810b146448fe. Commit 8bb7ff12a914 ("PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro") updated the Tegra PCI driver to use the macro PCI_CONF1_EXT_ADDRESS() instead of a local function in the Tegra PCI driver. This broke PCI for some Tegra platforms because, when calculating the offset value, the mask applied to the lower 8-bits changed from 0xff to 0xfc. For now, fix this by reverting this commit. Fixes: 8bb7ff12a914 ("PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro") Link: https://lore.kernel.org/r/20221017084006.11770-1-jonathanh@nvidia.com Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
2022-10-17counter: ti-ecap-capture: fix IS_ERR() vs NULL checkDan Carpenter
The devm_counter_alloc() function returns NULL on error. It doesn't return error pointers. Fixes: 4e2f42aa00b6 ("counter: ti-ecap-capture: capture driver support for ECAP") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Julien Panis <jpanis@baylibre.com> Acked-by: Vignesh Raghavendra <vigneshr@ti.com> Link: https://lore.kernel.org/r/Y0bUbZvfDJHBG9C6@kili/ Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
2022-10-17counter: Reduce DEFINE_COUNTER_ARRAY_POLARITY() to defining counter_arrayWilliam Breathitt Gray
A spare warning was reported for drivers/counter/ti-ecap-capture.c:: sparse warnings: (new ones prefixed by >>) >> drivers/counter/ti-ecap-capture.c:380:8: sparse: sparse: symbol 'ecap_cnt_pol_array' was not declared. Should it be static? vim +/ecap_cnt_pol_array +380 drivers/counter/ti-ecap-capture.c 379 > 380 static DEFINE_COUNTER_ARRAY_POLARITY(ecap_cnt_pol_array, ecap_cnt_pol_avail, ECAP_NB_CEVT); 381 The first argument to the DEFINE_COUNTER_ARRAY_POLARITY() macro is a token serving as the symbol name in the definition of a new struct counter_array structure. However, this macro actually expands to two statements:: #define DEFINE_COUNTER_ARRAY_POLARITY(_name, _enums, _length) \ DEFINE_COUNTER_AVAILABLE(_name##_available, _enums); \ struct counter_array _name = { \ .type = COUNTER_COMP_SIGNAL_POLARITY, \ .avail = &(_name##_available), \ .length = (_length), \ } Because of this, the "static" on line 380 only applies to the first statement. This patch splits out the DEFINE_COUNTER_AVAILABLE() line and leaves DEFINE_COUNTER_ARRAY_POLARITY() as a simple structure definition to avoid issues like this. Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/all/202210020619.NQbyomII-lkp@intel.com/ Cc: Julien Panis <jpanis@baylibre.com> Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
2022-10-17ata: ahci_st: Fix compilation warningDamien Le Moal
If CONFIG_OF is disabled and the ahci_st driver is builtin (or CONFIG_MODULES is disabled), then using the macro of_match_ptr() results in the st_ahci_match variable being unused, which generates a compilation warning and a compilation error if CONFIG_WERROR is enabled. Fix this by directly assigning st_ahci_match to .of_match_table in the st_ahci_driver platform driver definition. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2022-10-17spi: qup: support using GPIO as chip select lineRobert Marko
Most of the device with QUP SPI adapter are actually using GPIO-s for chip select. However, this stopped working after ("spi: Retire legacy GPIO handling") as it introduced a check on ->use_gpio_descriptors flag and since spi-qup driver does not set the flag it meant that all of boards using GPIO-s and with QUP adapter SPI devices stopped working. So, to enable using GPIO-s again set ->use_gpio_descriptors to true and populate ->max_native_cs. Fixes: f48dc6b96649 ("spi: Retire legacy GPIO handling") Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: luka.perkov@sartura.hr Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20221006194819.1536932-1-robert.marko@sartura.hr Signed-off-by: Mark Brown <broonie@kernel.org>
2022-10-17pinctrl: qcom: Avoid glitching lines when we first mux to outputDouglas Anderson
Back in the description of commit e440e30e26dd ("arm64: dts: qcom: sc7180: Avoid glitching SPI CS at bootup on trogdor") we described a problem that we were seeing on trogdor devices. I'll re-summarize here but you can also re-read the original commit. On trogdor devices, the BIOS is setting up the SPI chip select as: - mux special function (SPI chip select) - output enable - output low (unused because we've muxed as special function) In the kernel, however, we've moved away from using the chip select line as special function. Since the kernel wants to fully control the chip select it's far more efficient to treat the line as a GPIO rather than sending packet-like commands to the GENI firmware every time we want the line to toggle. When we transition from how the BIOS had the pin configured to how the kernel has the pin configured we end up glitching the line. That's because we _first_ change the mux of the line and then later set its output. This glitch is bad and can confuse the device on the other end of the line. The old commit e440e30e26dd ("arm64: dts: qcom: sc7180: Avoid glitching SPI CS at bootup on trogdor") fixed the glitch, though the solution was far from elegant. It essentially did the thing that everyone always hates: encoding a sequential program in device tree, even if it's a simple one. It also, unfortunately, got broken by commit b991f8c3622c ("pinctrl: core: Handling pinmux and pinconf separately"). After that commit we did all the muxing _first_ even though the config (set the pin to output high) was listed first. :( I looked at ideas for how to solve this more properly. My first thought was to use the "init" pinctrl state. In theory the "init" pinctrl state is supposed to be exactly for achieving glitch-free transitions. My dream would have been for the "init" pinctrl to do nothing at all. That would let us delay the automatic pin muxing until the driver could set things up and call pinctrl_init_done(). In other words, my dream was: /* Request the GPIO; init it 1 (because DT says GPIO_ACTIVE_LOW) */ devm_gpiod_get_index(dev, "cs", GPIOD_OUT_LOW); /* Output should be right, so we can remux, yay! */ pinctrl_init_done(dev); Unfortunately, it didn't work out. The primary reason is that the MSM GPIO driver implements gpio_request_enable(). As documented in pinmux.h, that function automatically remuxes a line as a GPIO. ...and it does this remuxing _before_ specifying the output of the pin. You can see in gpiod_get_index() that we call gpiod_request() before gpiod_configure_flags(). gpiod_request() isn't passed any flags so it has no idea what the eventual output will be. We could have debates about whether or not the automatic remuxing to GPIO for the MSM pinctrl was a good idea or not, but at this point I think there is a plethora of code that's relying on it and I certainly wouldn't suggest changing it. Alternatively, we could try to come up with a way to pass the initial output state to gpio_request_enable() and plumb all that through. That seems like it would be doable, but we'd have to plumb it through several layers in the stack. This patch implements yet another alternative. Here, we specifically avoid glitching the first time a pin is muxed to GPIO function if the direction of the pin is output. The idea is that we can read the state of the pin before we set the mux and make sure that the re-mux won't change the state. NOTES: - We only do this the first time since later swaps between mux states might want to preserve the old output value. In other words, I wouldn't want to break a driver that did: gpiod_set_value(g, 1); pinctrl_select_state(pinctrl, special_state); pinctrl_select_default_state(); /* We should be driving 1 even if "special_state" made the pin 0 */ - It's safe to do this the first time since the driver _couldn't_ have explicitly set a state. In order to even be able to control the GPIO (at least using gpiod) we have to have requested it which would have counted as the first mux. - In theory, instead of keeping track of the first time a pin was set as a GPIO we could enable the glitch-free behavior only when msm_pinmux_request_gpio() is in the callchain. That works an enables my "dream" implementation above where we use an "init" state to solve this. However, it's nice not to have to do this. By handling just the first transition to GPIO we can simply let the normal "default" remuxing happen and we can be assured that there won't be a glitch. Before this change I could see the glitch reported on the EC console when booting. It would say this when booting the kernel: Unexpected state 1 in CSNRE ISR After this change there is no error reported. Note that I haven't reproduced the original problem described in e440e30e26dd ("arm64: dts: qcom: sc7180: Avoid glitching SPI CS at bootup on trogdor") but I could believe it might happen in certain timing conditions. Fixes: b991f8c3622c ("pinctrl: core: Handling pinmux and pinconf separately") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20221014103217.1.I656bb2c976ed626e5d37294eb252c1cf3be769dc@changeid Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-10-17mmc: core: Fix kernel panic when remove non-standard SDIO cardMatthew Ma
SDIO tuple is only allocated for standard SDIO card, especially it causes memory corruption issues when the non-standard SDIO card has removed, which is because the card device's reference counter does not increase for it at sdio_init_func(), but all SDIO card device reference counter gets decreased at sdio_release_func(). Fixes: 6f51be3d37df ("sdio: allow non-standard SDIO cards") Signed-off-by: Matthew Ma <mahongwei@zeku.com> Reviewed-by: Weizhao Ouyang <ouyangweizhao@zeku.com> Reviewed-by: John Wang <wangdayu@zeku.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221014034951.2300386-1-ouyangweizhao@zeku.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-10-17mmc: sdhci-pci-core: Disable ES for ASUS BIOS on Jasper LakePatrick Thompson
Enhanced Strobe (ES) does not work correctly on the ASUS 1100 series of devices. Jasper Lake eMMCs (pci_id 8086:4dc4) are supposed to support ES. There are also two system families under the series, thus this is being scoped to the ASUS BIOS. The failing ES prevents the installer from writing to disk. Falling back to HS400 without ES fixes the issue. Signed-off-by: Patrick Thompson <ptf@google.com> Fixes: 315e3bd7ac19 ("mmc: sdhci-pci: Add support for Intel JSL") Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221013210017.3751025-1-ptf@google.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-10-17mmc: sdhci-esdhc-imx: Propagate ESDHC_FLAG_HS400* only on 8bit busSascha Hauer
The core issues the warning "drop HS400 support since no 8-bit bus" when one of the ESDHC_FLAG_HS400* flags is set on a non 8bit capable host. To avoid this warning set these flags only on hosts that actually can do 8bit, i.e. have bus-width = <8> set in the device tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Haibo Chen <haibo.chen@nxp.com> Fixes: 029e2476f9e6 ("mmc: sdhci-esdhc-imx: add HS400_ES support for i.MX8QXP") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221013093248.2220802-1-s.hauer@pengutronix.de Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-10-17mmc: queue: Cancel recovery work on cleanupChristian Löhle
To prevent any recovery work running after the queue cleanup cancel it. Any recovery running post-cleanup dereferenced mq->card as NULL and was not meaningful to begin with. Cc: stable@vger.kernel.org Signed-off-by: Christian Loehle <cloehle@hyperstone.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/c865c0c9789d428494b67b820a78923e@hyperstone.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-10-17mmc: block: Remove error check of hw_reset on resetChristian Löhle
Before switching back to the right partition in mmc_blk_reset there used to be a check if hw_reset was even supported. This return value was removed, so there is no reason to check. Furthermore ensure part_curr is not falsely set to a valid value on reset or partition switch error. As part of this change the code paths of mmc_blk_reset calls were checked to ensure no commands are issued after a failed mmc_blk_reset directly without going through the block layer. Fixes: fefdd3c91e0a ("mmc: core: Drop superfluous validations in mmc_hw|sw_reset()") Cc: stable@vger.kernel.org Signed-off-by: Christian Loehle <cloehle@hyperstone.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/e91be6199d04414a91e20611c81bfe1d@hyperstone.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-10-17pinctrl: Ingenic: JZ4755 bug fixesSiarhei Volkau
Fixes UART1 function bits and MMC groups typo. For pins 0x97,0x99 function 0 is designated to PWM3/PWM5 respectively, function is 1 designated to the UART1. Diff from v1: - sent separately - added tag Fixes Cc: stable@vger.kernel.org Fixes: b582b5a434d3 ("pinctrl: Ingenic: Add pinctrl driver for JZ4755.") Tested-by: Siarhei Volkau <lis8215@gmail.com> Signed-off-by: Siarhei Volkau <lis8215@gmail.com> Link: https://lore.kernel.org/r/20221016153548.3024209-1-lis8215@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-10-17net: ethernet: mediatek: ppe: Remove the unused function mtk_foe_entry_usable()Jiapeng Chong
The function mtk_foe_entry_usable() is defined in the mtk_ppe.c file, but not called elsewhere, so delete this unused function. drivers/net/ethernet/mediatek/mtk_ppe.c:400:20: warning: unused function 'mtk_foe_entry_usable'. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2409 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-17net: ethernet: mtk_eth_wed: add missing of_node_put()Yang Yingliang
The device_node pointer returned by of_parse_phandle() with refcount incremented, when finish using it, the refcount need be decreased. Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-17net: ethernet: mtk_eth_wed: add missing put_device() in mtk_wed_add_hw()Yang Yingliang
After calling get_device() in mtk_wed_add_hw(), in error path, put_device() needs be called. Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-17net: ethernet: mtk_eth_soc: fix possible memory leak in mtk_probe()Yang Yingliang
If mtk_wed_add_hw() has been called, mtk_wed_exit() needs be called in error path or removing module to free the memory allocated in mtk_wed_add_hw(). Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-17iio: bmc150-accel-core: Fix unsafe buffer attributesMatti Vaittinen
The iio_triggered_buffer_setup_ext() was changed by commit 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") to silently expect that all attributes given in buffer_attrs array are device-attributes. This expectation was not forced by the API - and some drivers did register attributes created by IIO_CONST_ATTR(). The added attribute "wrapping" does not copy the pointer to stored string constant and when the sysfs file is read the kernel will access to invalid location. Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order to prevent the invalid memory access. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") Link: https://lore.kernel.org/r/cf8a56658fc38db8bed64f456d898f5ad5a2814f.1664782676.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adxl367: Fix unsafe buffer attributesMatti Vaittinen
The devm_iio_kfifo_buffer_setup_ext() was changed by commit 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") to silently expect that all attributes given in buffer_attrs array are device-attributes. This expectation was not forced by the API - and some drivers did register attributes created by IIO_CONST_ATTR(). The added attribute "wrapping" does not copy the pointer to stored string constant and when the sysfs file is read the kernel will access to invalid location. Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order to prevent the invalid memory access. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/2e2d9ec34fb1df8ab8e2749199822db8cc91d302.1664782676.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adxl372: Fix unsafe buffer attributesMatti Vaittinen
The iio_triggered_buffer_setup_ext() was changed by commit 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") to silently expect that all attributes given in buffer_attrs array are device-attributes. This expectation was not forced by the API - and some drivers did register attributes created by IIO_CONST_ATTR(). The added attribute "wrapping" does not copy the pointer to stored string constant and when the sysfs file is read the kernel will access to invalid location. Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order to prevent the invalid memory access. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/19158499623cdf7f9c5efae1f13c9f1a918ff75f.1664782676.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: at91-sama5d2_adc: Fix unsafe buffer attributesMatti Vaittinen
The iio_triggered_buffer_setup_ext() was changed by commit 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") to silently expect that all attributes given in buffer_attrs array are device-attributes. This expectation was not forced by the API - and some drivers did register attributes created by IIO_CONST_ATTR(). The added attribute "wrapping" does not copy the pointer to stored string constant and when the sysfs file is read the kernel will access to invalid location. Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order to prevent the invalid memory access. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/be69775aa302159f088b8b91894e6ec449bca65b.1664782676.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: temperature: ltc2983: allocate iio channels onceCosmin Tanislav
Currently, every time the device wakes up from sleep, the iio_chan array is reallocated, leaking the previous one until the device is removed (basically never). Move the allocation to the probe function to avoid this. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Fixes: f110f3188e563 ("iio: temperature: Add support for LTC2983") Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/20221014123724.1401011-2-demonsingur@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adc: stm32-adc: fix channel sampling time initOlivier Moysan
Fix channel init for ADC generic channel bindings. In generic channel initialization, stm32_adc_smpr_init() is called to initialize channel sampling time. The "st,min-sample-time-ns" property is an optional property. If it is not defined, stm32_adc_smpr_init() is currently skipped. However stm32_adc_smpr_init() must always be called, to force a minimum sampling time for the internal channels, as the minimum sampling time is known. Make stm32_adc_smpr_init() call unconditional. Fixes: 796e5d0b1e9b ("iio: adc: stm32-adc: use generic binding for sample-time") Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20221012142205.13041-2-olivier.moysan@foss.st.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adc: mcp3911: mask out device ID in debug printsMarcus Folkesson
The Device ID should not be included when printing register. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20221010194654.676525-1-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adc: mcp3911: use correct id bitsMarcus Folkesson
The device ID should be shifted 6 bits to left according to datasheet. Fixes: 3a89b289df5d ("iio: adc: add support for mcp3911") Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20221010194641.676484-1-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adc: mcp3911: return proper error code on failure to allocate triggerMarcus Folkesson
smatch warnings: drivers/iio/adc/mcp3911.c:441 mcp3911_probe() warn: passing zero to 'PTR_ERR' Fixes: 08a65f61db69 ("iio: adc: mcp3911: add support for interrupts") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20220927092537.94663-1-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: adc: mcp3911: fix sizeof() vs ARRAY_SIZE() bugDan Carpenter
This code uses sizeof() instead of ARRAY_SIZE() so it reads beyond the end of the mcp3911_osr_table[] array. Fixes: 6d965885f4ea ("iio: adc: mcp3911: add support for oversampling ratio") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/YzFsjY3xLHUQMjVr@kili Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17iio: light: tsl2583: Fix module unloadingShreeya Patel
tsl2583 probe() uses devm_iio_device_register() and calling iio_device_unregister() causes the unregister to occur twice. s Switch to iio_device_register() instead of devm_iio_device_register() in probe to avoid the device managed cleanup. Fixes: 371894f5d1a0 ("iio: tsl2583: add runtime power management support") Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com> Link: https://lore.kernel.org/r/20220826122352.288438-1-shreeya.patel@collabora.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTSKai-Heng Feng
UBSAN complains about array-index-out-of-bounds: [ 1.980703] kernel: UBSAN: array-index-out-of-bounds in /build/linux-9H675w/linux-5.15.0/drivers/ata/libahci.c:968:41 [ 1.980709] kernel: index 15 is out of range for type 'ahci_em_priv [8]' [ 1.980713] kernel: CPU: 0 PID: 209 Comm: scsi_eh_8 Not tainted 5.15.0-25-generic #25-Ubuntu [ 1.980716] kernel: Hardware name: System manufacturer System Product Name/P5Q3, BIOS 1102 06/11/2010 [ 1.980718] kernel: Call Trace: [ 1.980721] kernel: <TASK> [ 1.980723] kernel: show_stack+0x52/0x58 [ 1.980729] kernel: dump_stack_lvl+0x4a/0x5f [ 1.980734] kernel: dump_stack+0x10/0x12 [ 1.980736] kernel: ubsan_epilogue+0x9/0x45 [ 1.980739] kernel: __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 1.980742] kernel: ahci_qc_issue+0x166/0x170 [libahci] [ 1.980748] kernel: ata_qc_issue+0x135/0x240 [ 1.980752] kernel: ata_exec_internal_sg+0x2c4/0x580 [ 1.980754] kernel: ? vprintk_default+0x1d/0x20 [ 1.980759] kernel: ata_exec_internal+0x67/0xa0 [ 1.980762] kernel: sata_pmp_read+0x8d/0xc0 [ 1.980765] kernel: sata_pmp_read_gscr+0x3c/0x90 [ 1.980768] kernel: sata_pmp_attach+0x8b/0x310 [ 1.980771] kernel: ata_eh_revalidate_and_attach+0x28c/0x4b0 [ 1.980775] kernel: ata_eh_recover+0x6b6/0xb30 [ 1.980778] kernel: ? ahci_do_hardreset+0x180/0x180 [libahci] [ 1.980783] kernel: ? ahci_stop_engine+0xb0/0xb0 [libahci] [ 1.980787] kernel: ? ahci_do_softreset+0x290/0x290 [libahci] [ 1.980792] kernel: ? trace_event_raw_event_ata_eh_link_autopsy_qc+0xe0/0xe0 [ 1.980795] kernel: sata_pmp_eh_recover.isra.0+0x214/0x560 [ 1.980799] kernel: sata_pmp_error_handler+0x23/0x40 [ 1.980802] kernel: ahci_error_handler+0x43/0x80 [libahci] [ 1.980806] kernel: ata_scsi_port_error_handler+0x2b1/0x600 [ 1.980810] kernel: ata_scsi_error+0x9c/0xd0 [ 1.980813] kernel: scsi_error_handler+0xa1/0x180 [ 1.980817] kernel: ? scsi_unjam_host+0x1c0/0x1c0 [ 1.980820] kernel: kthread+0x12a/0x150 [ 1.980823] kernel: ? set_kthread_struct+0x50/0x50 [ 1.980826] kernel: ret_from_fork+0x22/0x30 [ 1.980831] kernel: </TASK> This happens because sata_pmp_init_links() initialize link->pmp up to SATA_PMP_MAX_PORTS while em_priv is declared as 8 elements array. I can't find the maximum Enclosure Management ports specified in AHCI spec v1.3.1, but "12.2.1 LED message type" states that "Port Multiplier Information" can utilize 4 bits, which implies it can support up to 16 ports. Hence, use SATA_PMP_MAX_PORTS as EM_MAX_SLOTS to resolve the issue. BugLink: https://bugs.launchpad.net/bugs/1970074 Cc: stable@vger.kernel.org Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2022-10-17ata: ahci-imx: Fix MODULE_ALIASAlexander Stein
'ahci:' is an invalid prefix, preventing the module from autoloading. Fix this by using the 'platform:' prefix and DRV_NAME. Fixes: 9e54eae23bc9 ("ahci_imx: add ahci sata support on imx platforms") Cc: stable@vger.kernel.org Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2022-10-16hwmon: (pwm-fan) Explicitly switch off fan power when setting pwm1_enable to 0Matthias Schiffer
When pwm1_enable is changed from 1 to 0 while pwm1 == 0, the regulator is not switched off as expected. The reason is that when the fan is already off, ctx->enabled is false, so pwm_fan_power_off() will be a no-op. Handle this case explicitly in pwm_fan_update_enable() by calling pwm_fan_switch_power() directly. Fixes: b99152d4f04b ("hwmon: (pwm-fan) Switch regulator dynamically") Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20221013135951.4902-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-10-16hwmon: (corsair-psu) fix typo in USB id descriptionWilken Gottwalt
Fix spelling mistake (Corsaur -> Corsair). Fixes: 0cf46a653bda ("hwmon: (corsair-psu) add USB id of new revision of the HX1000i psu") Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net> Link: https://lore.kernel.org/r/Yzql13NOvQLlrye1@monster.localdomain Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-10-16Merge tag 'random-6.1-rc1-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/crng/random Pull more random number generator updates from Jason Donenfeld: "This time with some large scale treewide cleanups. The intent of this pull is to clean up the way callers fetch random integers. The current rules for doing this right are: - If you want a secure or an insecure random u64, use get_random_u64() - If you want a secure or an insecure random u32, use get_random_u32() The old function prandom_u32() has been deprecated for a while now and is just a wrapper around get_random_u32(). Same for get_random_int(). - If you want a secure or an insecure random u16, use get_random_u16() - If you want a secure or an insecure random u8, use get_random_u8() - If you want secure or insecure random bytes, use get_random_bytes(). The old function prandom_bytes() has been deprecated for a while now and has long been a wrapper around get_random_bytes() - If you want a non-uniform random u32, u16, or u8 bounded by a certain open interval maximum, use prandom_u32_max() I say "non-uniform", because it doesn't do any rejection sampling or divisions. Hence, it stays within the prandom_*() namespace, not the get_random_*() namespace. I'm currently investigating a "uniform" function for 6.2. We'll see what comes of that. By applying these rules uniformly, we get several benefits: - By using prandom_u32_max() with an upper-bound that the compiler can prove at compile-time is ≤65536 or ≤256, internally get_random_u16() or get_random_u8() is used, which wastes fewer batched random bytes, and hence has higher throughput. - By using prandom_u32_max() instead of %, when the upper-bound is not a constant, division is still avoided, because prandom_u32_max() uses a faster multiplication-based trick instead. - By using get_random_u16() or get_random_u8() in cases where the return value is intended to indeed be a u16 or a u8, we waste fewer batched random bytes, and hence have higher throughput. This series was originally done by hand while I was on an airplane without Internet. Later, Kees and I worked on retroactively figuring out what could be done with Coccinelle and what had to be done manually, and then we split things up based on that. So while this touches a lot of files, the actual amount of code that's hand fiddled is comfortably small" * tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: prandom: remove unused functions treewide: use get_random_bytes() when possible treewide: use get_random_u32() when possible treewide: use get_random_{u8,u16}() when possible, part 2 treewide: use get_random_{u8,u16}() when possible, part 1 treewide: use prandom_u32_max() when possible, part 2 treewide: use prandom_u32_max() when possible, part 1
2022-10-16Merge tag 'clk-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull more clk updates from Stephen Boyd: "This is the final part of the clk patches for this merge window. The clk rate range series needed another week to fully bake. Maxime fixed the bug that broke clk notifiers and prevented this from being included in the first pull request. He also added a unit test on top to make sure it doesn't break so easily again. The majority of the series fixes up how the clk_set_rate_*() APIs work, particularly around when the rate constraints are dropped and how they move around when reparenting clks. Overall it's a much needed improvement to the clk rate range APIs that used to be pretty broken if you looked sideways. Beyond the core changes there are a few driver fixes for a compilation issue or improper data causing clks to fail to register or have the wrong parents. These are good to get in before the first -rc so that the system actually boots on the affected devices" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (31 commits) clk: tegra: Fix Tegra PWM parent clock clk: at91: fix the build with binutils 2.27 clk: qcom: gcc-msm8660: Drop hardcoded fixed board clocks clk: mediatek: clk-mux: Add .determine_rate() callback clk: tests: Add tests for notifiers clk: Update req_rate on __clk_recalc_rates() clk: tests: Add missing test case for ranges clk: qcom: clk-rcg2: Take clock boundaries into consideration for gfx3d clk: Introduce the clk_hw_get_rate_range function clk: Zero the clk_rate_request structure clk: Stop forwarding clk_rate_requests to the parent clk: Constify clk_has_parent() clk: Introduce clk_core_has_parent() clk: Switch from __clk_determine_rate to clk_core_round_rate_nolock clk: Add our request boundaries in clk_core_init_rate_req clk: Introduce clk_hw_init_rate_request() clk: Move clk_core_init_rate_req() from clk_core_round_rate_nolock() to its caller clk: Change clk_core_init_rate_req prototype clk: Set req_rate on reparenting clk: Take into account uncached clocks in clk_set_rate_range() ...
2022-10-15Merge tag 'pci-v6.1-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci fix from Bjorn Helgaas: "Revert the attempt to distribute spare resources to unconfigured hotplug bridges at boot time. This fixed some dock hot-add scenarios, but Jonathan Cameron reported that it broke a topology with a multi-function device where one function was a Switch Upstream Port and the other was an Endpoint" * tag 'pci-v6.1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: Revert "PCI: Distribute available resources for root buses, too"
2022-10-15thermal: intel_powerclamp: Use first online CPU as control_cpuRafael J. Wysocki
Commit 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash") fixed an issue related to using smp_processor_id() in preemptible context by replacing it with a pair of get_cpu()/put_cpu(), but what is needed there really is any online CPU and not necessarily the one currently running the code. Arguably, getting the one that's running the code in there is confusing. For this reason, simply give the control CPU role to the first online one which automatically will be CPU0 if it is online, so one check can be dropped from the code for an added benefit. Link: https://lore.kernel.org/linux-pm/20221011113646.GA12080@duo.ucw.cz/ Fixes: 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash") Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Chen Yu <yu.c.chen@intel.com>
2022-10-15net: stmmac: Enable mac_managed_pm phylink configShenwei Wang
Enable the mac_managed_pm configuration in the phylink_config structure to avoid the kernel warning during system resume. Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state") Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-15net: phylink: add mac_managed_pm in phylink_config structureShenwei Wang
The recent commit 'commit 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")' requires the MAC driver explicitly tell the phy driver who is managing the PM, otherwise you will see warning during resume stage. Add a boolean property in the phylink_config structure so that the MAC driver can use it to tell the PHY driver if it wants to manage the PM. Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state") Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-15sunhme: Uninitialized variable in happy_meal_init()Dan Carpenter
The "burst" string is only initialized for CONFIG_SPARC. It should be set to "64" because that's what is used by PCI. Fixes: 24cddbc3ef11 ("sunhme: Combine continued messages") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-15net: phy: dp83867: Extend RX strap quirk for SGMII modeHarini Katakam
When RX strap in HW is not set to MODE 3 or 4, bit 7 and 8 in CF4 register should be set. The former is already handled in dp83867_config_init; add the latter in SGMII specific initialization. Fixes: 2a10154abcb7 ("net: phy: dp83867: Add TI dp83867 phy") Signed-off-by: Harini Katakam <harini.katakam@amd.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-15net: hv_netvsc: Fix a warning triggered by memcpy in rndis_filterCezar Bulinaru
memcpy: detected field-spanning write (size 168) of single field "(void *)&request->response_msg + (sizeof(struct rndis_message) - sizeof(union rndis_message_container)) + sizeof(*req_id)" at drivers/net/hyperv/rndis_filter.c:338 (size 40) RSP: 0018:ffffc90000144de0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8881766b4000 RCX: 0000000000000000 RDX: 0000000000000102 RSI: 0000000000009ffb RDI: 00000000ffffffff RBP: ffffc90000144e38 R08: 0000000000000000 R09: 00000000ffffdfff R10: ffffc90000144c48 R11: ffffffff82f56ac8 R12: ffff8881766b403c R13: 00000000000000a8 R14: ffff888100b75000 R15: ffff888179301d00 FS: 0000000000000000(0000) GS:ffff8884d6280000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f8b024c418 CR3: 0000000176548001 CR4: 00000000003706e0 Call Trace: <IRQ> ? _raw_spin_unlock_irqrestore+0x27/0x50 netvsc_poll+0x556/0x940 [hv_netvsc] __napi_poll+0x2e/0x170 net_rx_action+0x299/0x2f0 __do_softirq+0xed/0x2ef __irq_exit_rcu+0x9f/0x110 irq_exit_rcu+0xe/0x20 sysvec_hyperv_callback+0xb0/0xd0 </IRQ> <TASK> asm_sysvec_hyperv_callback+0x1b/0x20 RIP: 0010:native_safe_halt+0xb/0x10 Fixes: A warning triggered when the response message len exceeds the size of rndis_message. Inside the rndis_request structure these fields are however followed by a RNDIS_EXT_LEN padding so it is safe to use unsafe_memcpy. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Cezar Bulinaru <cbulinaru@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>