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2020-11-24s390/dasd: fix null pointer dereference for ERP requestsStefan Haberland
commit 6f117cb854a44a79898d844e6ae3fd23bd94e786 upstream. When requeueing all requests on the device request queue to the blocklayer we might get to an ERP (error recovery) request that is a copy of an original CQR. Those requests do not have blocklayer request information or a pointer to the dasd_queue set. When trying to access those data it will lead to a null pointer dereference in dasd_requeue_all_requests(). Fix by checking if the request is an ERP request that can simply be ignored. The blocklayer request will be requeued by the original CQR that is on the device queue right behind the ERP request. Fixes: 9487cfd3430d ("s390/dasd: fix handling of internal requests") Cc: <stable@vger.kernel.org> #4.16 Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24regulator: workaround self-referent regulatorsMichał Mirosław
commit f5c042b23f7429e5c2ac987b01a31c69059a978b upstream. Workaround regulators whose supply name happens to be the same as its own name. This fixes boards that used to work before the early supply resolving was removed. The error message is left in place so that offending drivers can be detected. Fixes: aea6cb99703e ("regulator: resolve supply after creating regulator") Cc: stable@vger.kernel.org Reported-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Ahmad Fatoum <a.fatoum@pengutronix.de> # stpmic1 Link: https://lore.kernel.org/r/d703acde2a93100c3c7a81059d716c50ad1b1f52.1605226675.git.mirq-linux@rere.qmqm.pl Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24regulator: avoid resolve_supply() infinite recursionMichał Mirosław
commit 4b639e254d3d4f15ee4ff2b890a447204cfbeea9 upstream. When a regulator's name equals its supply's name the regulator_resolve_supply() recurses indefinitely. Add a check so that debugging the problem is easier. The "fixed" commit just exposed the problem. Fixes: aea6cb99703e ("regulator: resolve supply after creating regulator") Cc: stable@vger.kernel.org Reported-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Ahmad Fatoum <a.fatoum@pengutronix.de> # stpmic1 Link: https://lore.kernel.org/r/c6171057cfc0896f950c4d8cb82df0f9f1b89ad9.1605226675.git.mirq-linux@rere.qmqm.pl Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24regulator: fix memory leak with repeated set_machine_constraints()Michał Mirosław
commit 57a6ad482af256b2a13de14194fb8f67c1a65f10 upstream. Fixed commit introduced a possible second call to set_machine_constraints() and that allocates memory for rdev->constraints. Move the allocation to the caller so it's easier to manage and done once. Fixes: aea6cb99703e ("regulator: resolve supply after creating regulator") Cc: stable@vger.kernel.org Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Ahmad Fatoum <a.fatoum@pengutronix.de> # stpmic1 Link: https://lore.kernel.org/r/78c3d4016cebc08d441aad18cb924b4e4d9cf9df.1605226675.git.mirq-linux@rere.qmqm.pl Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24regulator: pfuze100: limit pfuze-support-disable-sw to pfuze{100,200}Sean Nyekjaer
commit 365ec8b61689bd64d6a61e129e0319bf71336407 upstream. Limit the fsl,pfuze-support-disable-sw to the pfuze100 and pfuze200 variants. When enabling fsl,pfuze-support-disable-sw and using a pfuze3000 or pfuze3001, the driver would choose pfuze100_sw_disable_regulator_ops instead of the newly introduced and correct pfuze3000_sw_regulator_ops. Signed-off-by: Sean Nyekjaer <sean@geanix.com> Fixes: 6f1cf5257acc ("regualtor: pfuze100: correct sw1a/sw2 on pfuze3000") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201110174113.2066534-1-sean@geanix.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24iio: accel: kxcjk1013: Add support for KIOX010A ACPI DSM for setting tablet-modeHans de Goede
commit e5b1032a656e9aa4c7a4df77cb9156a2a651a5f9 upstream. Some 360 degree hinges (yoga) style 2-in-1 devices use 2 KXCJ91008-s to allow the OS to determine the angle between the display and the base of the device, so that the OS can determine if the 2-in-1 is in laptop or in tablet-mode. On Windows both accelerometers are read by a special HingeAngleService process; and this process calls a DSM (Device Specific Method) on the ACPI KIOX010A device node for the sensor in the display, to let the embedded-controller (EC) know about the mode so that it can disable the kbd and touchpad to avoid spurious input while folded into tablet-mode. This notifying of the EC is problematic because sometimes the EC comes up thinking that device is in tablet-mode and the kbd and touchpad do not work. This happens for example on Irbis NB111 devices after a suspend / resume cycle (after a complete battery drain / hard reset without having booted Windows at least once). Other 2-in-1s which are likely affected too are e.g. the Teclast F5 and F6 series. The kxcjk-1013 driver may seem like a strange place to deal with this, but since it is *the* driver for the ACPI KIOX010A device, it is also the driver which has access to the ACPI handle needed by the DSM. Add support for calling the DSM and on probe unconditionally tell the EC that the device is laptop mode, fixing the kbd and touchpad sometimes not working. Fixes: 7f6232e69539 ("iio: accel: kxcjk1013: Add KIOX010A ACPI Hardware-ID") Reported-and-tested-by: russianneuromancer <russianneuromancer@ya.ru> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201110133835.129080-3-hdegoede@redhat.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24iio: accel: kxcjk1013: Replace is_smo8500_device with an acpi_type enumHans de Goede
commit 11e94f28c3de35d5ad1ac6a242a5b30f4378991a upstream. Replace the boolean is_smo8500_device variable with an acpi_type enum. For now this can be either ACPI_GENERIC or ACPI_SMO8500, this is a preparation patch for adding special handling for the KIOX010A ACPI HID, which will add a ACPI_KIOX010A acpi_type to the introduced enum. For stable as needed as precursor for next patch. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Fixes: 7f6232e69539 ("iio: accel: kxcjk1013: Add KIOX010A ACPI Hardware-ID") Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201110133835.129080-2-hdegoede@redhat.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24staging: rtl8723bs: Add 024c:0627 to the list of SDIO device-idsBrian O'Keefe
commit aee9dccc5b64e878cf1b18207436e73f66d74157 upstream. Add 024c:0627 to the list of SDIO device-ids, based on hardware found in the wild. This hardware exists on at least some Acer SW1-011 tablets. Signed-off-by: Brian O'Keefe <bokeefe@alum.wpi.edu> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/b9e1523f-2ba7-fb82-646a-37f095b4440e@alum.wpi.edu Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24tty: serial: imx: keep console clocks always onFugang Duan
commit e67c139c488e84e7eae6c333231e791f0e89b3fb upstream. For below code, there has chance to cause deadlock in SMP system: Thread 1: clk_enable_lock(); pr_info("debug message"); clk_enable_unlock(); Thread 2: imx_uart_console_write() clk_enable() clk_enable_lock(); Thread 1: Acuired clk enable_lock -> printk -> console_trylock_spinning Thread 2: console_unlock() -> imx_uart_console_write -> clk_disable -> Acquite clk enable_lock So the patch is to keep console port clocks always on like other console drivers. Fixes: 1cf93e0d5488 ("serial: imx: remove the uart_console() check") Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Link: https://lore.kernel.org/r/20201111025136.29818-1-fugang.duan@nxp.com Cc: stable <stable@vger.kernel.org> [fix up build warning - gregkh] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24speakup: Do not let the line discipline be used several timesSamuel Thibault
commit d4122754442799187d5d537a9c039a49a67e57f1 upstream. Speakup has only one speakup_tty variable to store the tty it is managing. This makes sense since its codebase currently assumes that there is only one user who controls the screen reading. That however means that we have to forbid using the line discipline several times, otherwise the second closure would try to free a NULL ldisc_data, leading to general protection fault: 0000 [#1] SMP KASAN PTI RIP: 0010:spk_ttyio_ldisc_close+0x2c/0x60 Call Trace: tty_ldisc_release+0xa2/0x340 tty_release_struct+0x17/0xd0 tty_release+0x9d9/0xcc0 __fput+0x231/0x740 task_work_run+0x12c/0x1a0 do_exit+0x9b5/0x2230 ? release_task+0x1240/0x1240 ? __do_page_fault+0x562/0xa30 do_group_exit+0xd5/0x2a0 __x64_sys_exit_group+0x35/0x40 do_syscall_64+0x89/0x2b0 ? page_fault+0x8/0x30 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Cc: stable@vger.kernel.org Reported-by: 秦世松 <qinshisong1205@gmail.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Tested-by: Shisong Qin <qinshisong1205@gmail.com> Link: https://lore.kernel.org/r/20201110183541.fzgnlwhjpgqzjeth@function Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24regulator: ti-abb: Fix array out of bound read access on the first transitionNishanth Menon
[ Upstream commit 2ba546ebe0ce2af47833d8912ced9b4a579f13cb ] At the start of driver initialization, we do not know what bias setting the bootloader has configured the system for and we only know for certain the very first time we do a transition. However, since the initial value of the comparison index is -EINVAL, this negative value results in an array out of bound access on the very first transition. Since we don't know what the setting is, we just set the bias configuration as there is nothing to compare against. This prevents the array out of bound access. NOTE: Even though we could use a more relaxed check of "< 0" the only valid values(ignoring cosmic ray induced bitflips) are -EINVAL, 0+. Fixes: 40b1936efebd ("regulator: Introduce TI Adaptive Body Bias(ABB) on-chip LDO driver") Link: https://lore.kernel.org/linux-mm/CA+G9fYuk4imvhyCN7D7T6PMDH6oNp6HDCRiTUKMQ6QXXjBa4ag@mail.gmail.com/ Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20201118145009.10492-1-nm@ti.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24can: kvaser_usb: kvaser_usb_hydra: Fix KCAN bittiming limitsJimmy Assarsson
[ Upstream commit d003868d7f8579838ed58b6429af91844039b6f8 ] Use correct bittiming limits for the KCAN CAN controller. Fixes: aec5fb2268b7 ("can: kvaser_usb: Add support for Kvaser USB hydra family") Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://lore.kernel.org/r/20201115163027.16851-2-jimmyassarsson@gmail.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24drm/sun4i: dw-hdmi: fix error return code in sun8i_dw_hdmi_bind()Xiongfeng Wang
[ Upstream commit 6654b57866b98230a270953dd34f67de17ab1708 ] Fix to return a negative error code from the error handling case instead of 0 in function sun8i_dw_hdmi_bind(). Fixes: b7c7436a5ff0 ("drm/sun4i: Implement A83T HDMI driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/1605488969-5211-1-git-send-email-wangxiongfeng2@huawei.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24can: m_can: m_can_handle_state_change(): fix state changeWu Bo
[ Upstream commit cd0d83eab2e0c26fe87a10debfedbb23901853c1 ] m_can_handle_state_change() is called with the new_state as an argument. In the switch statements for CAN_STATE_ERROR_ACTIVE, the comment and the following code indicate that a CAN_STATE_ERROR_WARNING is handled. This patch fixes this problem by changing the case to CAN_STATE_ERROR_WARNING. Signed-off-by: Wu Bo <wubo.oduw@gmail.com> Link: http://lore.kernel.org/r/20200129022330.21248-2-wubo.oduw@gmail.com Cc: Dan Murphy <dmurphy@ti.com> Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support") Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24can: peak_usb: fix potential integer overflow on shift of a intColin Ian King
[ Upstream commit 8a68cc0d690c9e5730d676b764c6f059343b842c ] The left shift of int 32 bit integer constant 1 is evaluated using 32 bit arithmetic and then assigned to a signed 64 bit variable. In the case where time_ref->adapter->ts_used_bits is 32 or more this can lead to an oveflow. Avoid this by shifting using the BIT_ULL macro instead. Fixes: bb4785551f64 ("can: usb: PEAK-System Technik USB adapters driver core") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201105112427.40688-1-colin.king@canonical.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24can: mcba_usb: mcba_usb_start_xmit(): first fill skb, then pass to ↵Marc Kleine-Budde
can_put_echo_skb() [ Upstream commit 81c9c8e0adef3285336b942f93287c554c89e6c6 ] The driver has to first fill the skb with data and then handle it to can_put_echo_skb(). This patch moves the can_put_echo_skb() down, right before sending the skb out via USB. Fixes: 51f3baad7de9 ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer") Cc: Remigiusz Kołłątaj <remigiusz.kollataj@mobica.com> Link: https://lore.kernel.org/r/20201111221204.1639007-1-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24can: ti_hecc: Fix memleak in ti_hecc_probeZhang Qilong
[ Upstream commit 7968c7c79d3be8987feb8021f0c46e6866831408 ] In the error handling, we should goto the probe_exit_candev to free ndev to prevent memory leak. Fixes: dabf54dd1c63 ("can: ti_hecc: Convert TI HECC driver to DT only driver") Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20201114111708.3465543-1-zhangqilong3@huawei.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24can: dev: can_restart(): post buffer from the right contextAlejandro Concepcion Rodriguez
[ Upstream commit a1e654070a60d5d4f7cce59c38f4ca790bb79121 ] netif_rx() is meant to be called from interrupt contexts. can_restart() may be called by can_restart_work(), which is called from a worqueue, so it may run in process context. Use netif_rx_ni() instead. Fixes: 39549eef3587 ("can: CAN Network device driver and Netlink interface") Co-developed-by: Loris Fauster <loris.fauster@ttcontrol.com> Signed-off-by: Loris Fauster <loris.fauster@ttcontrol.com> Signed-off-by: Alejandro Concepcion Rodriguez <alejandro@acoro.eu> Link: https://lore.kernel.org/r/4e84162b-fb31-3a73-fa9a-9438b4bd5234@acoro.eu [mkl: use netif_rx_ni() instead of netif_rx_any_context()] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24ip_tunnels: Set tunnel option flag when tunnel metadata is presentYi-Hung Wei
[ Upstream commit 9c2e14b48119b39446031d29d994044ae958d8fc ] Currently, we may set the tunnel option flag when the size of metadata is zero. For example, we set TUNNEL_GENEVE_OPT in the receive function no matter the geneve option is present or not. As this may result in issues on the tunnel flags consumers, this patch fixes the issue. Related discussion: * https://lore.kernel.org/netdev/1604448694-19351-1-git-send-email-yihung.wei@gmail.com/T/#u Fixes: 256c87c17c53 ("net: check tunnel option type in tunnel flags") Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com> Link: https://lore.kernel.org/r/1605053800-74072-1-git-send-email-yihung.wei@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFERNecip Fazil Yildiran
[ Upstream commit 676650d007e06fddcf3fe38238251d71bd179641 ] When TOUCHSCREEN_ADC is enabled and IIO_BUFFER is disabled, it results in the following Kbuild warning: WARNING: unmet direct dependencies detected for IIO_BUFFER_CB Depends on [n]: IIO [=y] && IIO_BUFFER [=n] Selected by [y]: - TOUCHSCREEN_ADC [=y] && !UML && INPUT [=y] && INPUT_TOUCHSCREEN [=y] && IIO [=y] The reason is that TOUCHSCREEN_ADC selects IIO_BUFFER_CB without depending on or selecting IIO_BUFFER while IIO_BUFFER_CB depends on IIO_BUFFER. This can also fail building the kernel. Honor the kconfig dependency to remove unmet direct dependency warnings and avoid any potential build failures. Fixes: aa132ffb6b0a ("input: touchscreen: resistive-adc-touch: add generic resistive ADC touchscreen") Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20201102221504.541279-1-fazilyildiran@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24Input: adxl34x - clean up a data type in adxl34x_probe()Dan Carpenter
[ Upstream commit 33b6c39e747c552fa770eecebd1776f1f4a222b1 ] The "revid" is used to store negative error codes so it should be an int type. Fixes: e27c729219ad ("Input: add driver for ADXL345/346 Digital Accelerometers") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Link: https://lore.kernel.org/r/20201026072824.GA1620546@mwanda Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24ACPI: button: Add DMI quirk for Medion Akoya E2228THans de Goede
[ Upstream commit 7daaa06357bf7f1874b62bb1ea9d66a51d4e567e ] The Medion Akoya E2228T's ACPI _LID implementation is quite broken, it has the same issues as the one from the Medion Akoya E2215T: 1. For notifications it uses an ActiveLow Edge GpioInt, rather then an ActiveBoth one, meaning that the device is only notified when the lid is closed, not when it is opened. 2. Matching with this its _LID method simply always returns 0 (closed) In order for the Linux LID code to work properly with this implementation, the lid_init_state selection needs to be set to ACPI_BUTTON_LID_INIT_OPEN, add a DMI quirk for this. While working on this I also found out that the MD60### part of the model number differs per country/batch while all of the E2215T and E2228T models have this issue, so also remove the " MD60198" part from the E2215T quirk. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24scsi: ufs: Fix unbalanced scsi_block_reqs_cnt caused by ufshcd_hold()Can Guo
[ Upstream commit da3fecb0040324c08f1587e5bff1f15f36be1872 ] The scsi_block_reqs_cnt increased in ufshcd_hold() is supposed to be decreased back in ufshcd_ungate_work() in a paired way. However, if specific ufshcd_hold/release sequences are met, it is possible that scsi_block_reqs_cnt is increased twice but only one ungate work is queued. To make sure scsi_block_reqs_cnt is handled by ufshcd_hold() and ufshcd_ungate_work() in a paired way, increase it only if queue_work() returns true. Link: https://lore.kernel.org/r/1604384682-15837-2-git-send-email-cang@codeaurora.org Reviewed-by: Hongwu Su <hongwus@codeaurora.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irqJianqun Xu
[ Upstream commit 63fbf8013b2f6430754526ef9594f229c7219b1f ] There need to enable pclk_gpio when do irq_create_mapping, since it will do access to gpio controller. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang<kever.yang@rock-chips.com> Link: https://lore.kernel.org/r/20201013063731.3618-3-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-24net: ftgmac100: Fix crash when removing driverJoel Stanley
[ Upstream commit 3d5179458d22dc0b4fdc724e4bed4231a655112a ] When removing the driver we would hit BUG_ON(!list_empty(&dev->ptype_specific)) in net/core/dev.c due to still having the NC-SI packet handler registered. # echo 1e660000.ethernet > /sys/bus/platform/drivers/ftgmac100/unbind ------------[ cut here ]------------ kernel BUG at net/core/dev.c:10254! Internal error: Oops - BUG: 0 [#1] SMP ARM CPU: 0 PID: 115 Comm: sh Not tainted 5.10.0-rc3-next-20201111-00007-g02e0365710c4 #46 Hardware name: Generic DT based system PC is at netdev_run_todo+0x314/0x394 LR is at cpumask_next+0x20/0x24 pc : [<806f5830>] lr : [<80863cb0>] psr: 80000153 sp : 855bbd58 ip : 00000001 fp : 855bbdac r10: 80c03d00 r9 : 80c06228 r8 : 81158c54 r7 : 00000000 r6 : 80c05dec r5 : 80c05d18 r4 : 813b9280 r3 : 813b9054 r2 : 8122c470 r1 : 00000002 r0 : 00000002 Flags: Nzcv IRQs on FIQs off Mode SVC_32 ISA ARM Segment none Control: 00c5387d Table: 85514008 DAC: 00000051 Process sh (pid: 115, stack limit = 0x7cb5703d) ... Backtrace: [<806f551c>] (netdev_run_todo) from [<80707eec>] (rtnl_unlock+0x18/0x1c) r10:00000051 r9:854ed710 r8:81158c54 r7:80c76bb0 r6:81158c10 r5:8115b410 r4:813b9000 [<80707ed4>] (rtnl_unlock) from [<806f5db8>] (unregister_netdev+0x2c/0x30) [<806f5d8c>] (unregister_netdev) from [<805a8180>] (ftgmac100_remove+0x20/0xa8) r5:8115b410 r4:813b9000 [<805a8160>] (ftgmac100_remove) from [<805355e4>] (platform_drv_remove+0x34/0x4c) Fixes: bd466c3fb5a4 ("net/faraday: Support NCSI mode") Signed-off-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20201117024448.1170761-1-joel@jms.id.au Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24net: usb: qmi_wwan: Set DTR quirk for MR400Filip Moc
[ Upstream commit df8d85d8c69d6837817e54dcb73c84a8b5a13877 ] LTE module MR400 embedded in TL-MR6400 v4 requires DTR to be set. Signed-off-by: Filip Moc <dev@moc6.cz> Acked-by: Bjørn Mork <bjorn@mork.no> Link: https://lore.kernel.org/r/20201117173631.GA550981@moc6.cz Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24net/mlx5: Disable QoS when min_rates on all VFs are zeroVladyslav Tarasiuk
[ Upstream commit 470b74758260e4abc2508cf1614573c00a00465c ] Currently when QoS is enabled for VF and any min_rate is configured, the driver sets bw_share value to at least 1 and doesn’t allow to set it to 0 to make minimal rate unlimited. It means there is always a minimal rate configured for every VF, even if user tries to remove it. In order to make QoS disable possible, check whether all vports have configured min_rate = 0. If this is true, set their bw_share to 0 to disable min_rate limitations. Fixes: c9497c98901c ("net/mlx5: Add support for setting VF min rate") Signed-off-by: Vladyslav Tarasiuk <vladyslavt@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24qlcnic: fix error return code in qlcnic_83xx_restart_hw()Zhang Changzhong
[ Upstream commit 3beb9be165083c2964eba1923601c3bfac0b02d4 ] Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 3ced0a88cd4c ("qlcnic: Add support to run firmware POST") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Link: https://lore.kernel.org/r/1605248186-16013-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24qed: fix error return code in qed_iwarp_ll2_start()Zhang Changzhong
[ Upstream commit cb47d16ea21045c66eebbf5ed792e74a8537e27a ] Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 469981b17a4f ("qed: Add unaligned and packed packet processing") Fixes: fcb39f6c10b2 ("qed: Add mpa buffer descriptors for storing and processing mpa fpdus") Fixes: 1e28eaad07ea ("qed: Add iWARP support for fpdu spanned over more than two tcp packets") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Michal Kalderon <michal.kalderon@marvell.com> Link: https://lore.kernel.org/r/1605532033-27373-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24net: qualcomm: rmnet: Fix incorrect receive packet handling during cleanupSubash Abhinov Kasiviswanathan
[ Upstream commit fc70f5bf5e525dde81565f0a30d5e39168062eba ] During rmnet unregistration, the real device rx_handler is first cleared followed by the removal of rx_handler_data after the rcu synchronization. Any packets in the receive path may observe that the rx_handler is NULL. However, there is no check when dereferencing this value to use the rmnet_port information. This fixes following splat by adding the NULL check. Unable to handle kernel NULL pointer dereference at virtual address 000000000000000d pc : rmnet_rx_handler+0x124/0x284 lr : rmnet_rx_handler+0x124/0x284 rmnet_rx_handler+0x124/0x284 __netif_receive_skb_core+0x758/0xd74 __netif_receive_skb+0x50/0x17c process_backlog+0x15c/0x1b8 napi_poll+0x88/0x284 net_rx_action+0xbc/0x23c __do_softirq+0x20c/0x48c Fixes: ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation") Signed-off-by: Sean Tranchetti <stranche@codeaurora.org> Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Link: https://lore.kernel.org/r/1605298325-3705-1-git-send-email-subashab@codeaurora.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24net/mlx4_core: Fix init_hca fields offsetAya Levin
[ Upstream commit 6d9c8d15af0ef20a66a0b432cac0d08319920602 ] Slave function read the following capabilities from the wrong offset: 1. log_mc_entry_sz 2. fs_log_entry_sz 3. log_mc_hash_sz Fix that by adjusting these capabilities offset to match firmware layout. Due to the wrong offset read, the following issues might occur: 1+2. Negative value reported at max_mcast_qp_attach. 3. Driver to init FW with multicast hash size of zero. Fixes: a40ded604365 ("net/mlx4_core: Add masking for a few queries on HCA caps") Signed-off-by: Aya Levin <ayal@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20201118081922.553-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24net: dsa: mv88e6xxx: Avoid VTU corruption on 6097Tobias Waldekranz
[ Upstream commit 92307069a96c07d9b6e74b96b79390e7cd7d2111 ] As soon as you add the second port to a VLAN, all other port membership configuration is overwritten with zeroes. The HW interprets this as all ports being "unmodified members" of the VLAN. In the simple case when all ports belong to the same VLAN, switching will still work. But using multiple VLANs or trying to set multiple ports as tagged members will not work. On the 6352, doing a VTU GetNext op, followed by an STU GetNext op will leave you with both the member- and state- data in the VTU/STU data registers. But on the 6097 (which uses the same implementation), the STU GetNext will override the information gathered from the VTU GetNext. Separate the two stages, parsing the result of the VTU GetNext before doing the STU GetNext. We opt to update the existing implementation for all applicable chips, as opposed to creating a separate callback for 6097, because although the previous implementation did work for (at least) 6352, the datasheet does not mention the masking behavior. Fixes: ef6fcea37f01 ("net: dsa: mv88e6xxx: get STU entry on VTU GetNext") Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Link: https://lore.kernel.org/r/20201112114335.27371-1-tobias@waldekranz.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24net: b44: fix error return code in b44_init_one()Zhang Changzhong
[ Upstream commit 7b027c249da54f492699c43e26cba486cfd48035 ] Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 39a6f4bce6b4 ("b44: replace the ssb_dma API with the generic DMA API") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/1605582131-36735-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24mlxsw: core: Use variable timeout for EMAD retriesIdo Schimmel
[ Upstream commit 1f492eab67bced119a0ac7db75ef2047e29a30c6 ] The driver sends Ethernet Management Datagram (EMAD) packets to the device for configuration purposes and waits for up to 200ms for a reply. A request is retried up to 5 times. When the system is under heavy load, replies are not always processed in time and EMAD transactions fail. Make the process more robust to such delays by using exponential backoff. First wait for up to 200ms, then retransmit and wait for up to 400ms and so on. Fixes: caf7297e7ab5 ("mlxsw: core: Introduce support for asynchronous EMAD register access") Reported-by: Denis Yulevich <denisyu@nvidia.com> Tested-by: Denis Yulevich <denisyu@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24lan743x: prevent entire kernel HANG on open, for some platformsSven Van Asbroeck
[ Upstream commit 796a2665ca3e91ebaba7222f76fd9a035714e2d8 ] On arm imx6, when opening the chip's netdev, the whole Linux kernel intermittently hangs/freezes. This is caused by a bug in the driver code which tests if pcie interrupts are working correctly, using the software interrupt: 1. open: enable the software interrupt 2. open: tell the chip to assert the software interrupt 3. open: wait for flag 4. ISR: acknowledge s/w interrupt, set flag 5. open: notice flag, disable the s/w interrupt, continue Unfortunately the ISR only acknowledges the s/w interrupt, but does not disable it. This will re-trigger the ISR in a tight loop. On some (lucky) platforms, open proceeds to disable the s/w interrupt even while the ISR is 'spinning'. On arm imx6, the spinning ISR does not allow open to proceed, resulting in a hung Linux kernel. Fix minimally by disabling the s/w interrupt in the ISR, which will prevent it from spinning. This won't break anything because the s/w interrupt is used as a one-shot interrupt. Note that this is a minimal fix, overlooking many possible cleanups, e.g.: - lan743x_intr_software_isr() is completely redundant and reads INT_STS twice for no apparent reason - disabling the s/w interrupt in lan743x_intr_test_isr() is now redundant, but harmless - waiting on software_isr_flag can be converted from a sleeping poll loop to wait_event_timeout() Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver") Tested-by: Sven Van Asbroeck <thesven73@gmail.com> # arm imx6 lan7430 Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com> Link: https://lore.kernel.org/r/20201112204741.12375-1-TheSven73@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24lan743x: fix issue causing intermittent kernel log warningsSven Van Asbroeck
[ Upstream commit e35df62e04cc6fc4b9d90d054732f138349ff9b1 ] When running this chip on arm imx6, we intermittently observe the following kernel warning in the log, especially when the system is under high load: [ 50.119484] ------------[ cut here ]------------ [ 50.124377] WARNING: CPU: 0 PID: 303 at kernel/softirq.c:169 __local_bh_enable_ip+0x100/0x184 [ 50.132925] IRQs not enabled as expected [ 50.159250] CPU: 0 PID: 303 Comm: rngd Not tainted 5.7.8 #1 [ 50.164837] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 50.171395] [<c0111a38>] (unwind_backtrace) from [<c010be28>] (show_stack+0x10/0x14) [ 50.179162] [<c010be28>] (show_stack) from [<c05b9dec>] (dump_stack+0xac/0xd8) [ 50.186408] [<c05b9dec>] (dump_stack) from [<c0122e40>] (__warn+0xd0/0x10c) [ 50.193391] [<c0122e40>] (__warn) from [<c0123238>] (warn_slowpath_fmt+0x98/0xc4) [ 50.200892] [<c0123238>] (warn_slowpath_fmt) from [<c012b010>] (__local_bh_enable_ip+0x100/0x184) [ 50.209860] [<c012b010>] (__local_bh_enable_ip) from [<bf09ecbc>] (destroy_conntrack+0x48/0xd8 [nf_conntrack]) [ 50.220038] [<bf09ecbc>] (destroy_conntrack [nf_conntrack]) from [<c0ac9b58>] (nf_conntrack_destroy+0x94/0x168) [ 50.230160] [<c0ac9b58>] (nf_conntrack_destroy) from [<c0a4aaa0>] (skb_release_head_state+0xa0/0xd0) [ 50.239314] [<c0a4aaa0>] (skb_release_head_state) from [<c0a4aadc>] (skb_release_all+0xc/0x24) [ 50.247946] [<c0a4aadc>] (skb_release_all) from [<c0a4b4cc>] (consume_skb+0x74/0x17c) [ 50.255796] [<c0a4b4cc>] (consume_skb) from [<c081a2dc>] (lan743x_tx_release_desc+0x120/0x124) [ 50.264428] [<c081a2dc>] (lan743x_tx_release_desc) from [<c081a98c>] (lan743x_tx_napi_poll+0x5c/0x18c) [ 50.273755] [<c081a98c>] (lan743x_tx_napi_poll) from [<c0a6b050>] (net_rx_action+0x118/0x4a4) [ 50.282306] [<c0a6b050>] (net_rx_action) from [<c0101364>] (__do_softirq+0x13c/0x53c) [ 50.290157] [<c0101364>] (__do_softirq) from [<c012b29c>] (irq_exit+0x150/0x17c) [ 50.297575] [<c012b29c>] (irq_exit) from [<c0196a08>] (__handle_domain_irq+0x60/0xb0) [ 50.305423] [<c0196a08>] (__handle_domain_irq) from [<c05d44fc>] (gic_handle_irq+0x4c/0x90) [ 50.313790] [<c05d44fc>] (gic_handle_irq) from [<c0100ed4>] (__irq_usr+0x54/0x80) [ 50.321287] Exception stack(0xecd99fb0 to 0xecd99ff8) [ 50.326355] 9fa0: 1cf1aa74 00000001 00000001 00000000 [ 50.334547] 9fc0: 00000001 00000000 00000000 00000000 00000000 00000000 00004097 b6d17d14 [ 50.342738] 9fe0: 00000001 b6d17c60 00000000 b6e71f94 800b0010 ffffffff [ 50.349364] irq event stamp: 2525027 [ 50.352955] hardirqs last enabled at (2525026): [<c0a6afec>] net_rx_action+0xb4/0x4a4 [ 50.360892] hardirqs last disabled at (2525027): [<c0d6d2fc>] _raw_spin_lock_irqsave+0x1c/0x50 [ 50.369517] softirqs last enabled at (2524660): [<c01015b4>] __do_softirq+0x38c/0x53c [ 50.377446] softirqs last disabled at (2524693): [<c012b29c>] irq_exit+0x150/0x17c [ 50.385027] ---[ end trace c0b571db4bc8087d ]--- The driver is calling dev_kfree_skb() from code inside a spinlock, where h/w interrupts are disabled. This is forbidden, as documented in include/linux/netdevice.h. The correct function to use dev_kfree_skb_irq(), or dev_kfree_skb_any(). Fix by using the correct dev_kfree_skb_xxx() functions: in lan743x_tx_release_desc(): called by lan743x_tx_release_completed_descriptors() called by in lan743x_tx_napi_poll() which holds a spinlock called by lan743x_tx_release_all_descriptors() called by lan743x_tx_close() which can-sleep conclusion: use dev_kfree_skb_any() in lan743x_tx_xmit_frame(): which holds a spinlock conclusion: use dev_kfree_skb_irq() in lan743x_tx_close(): which can-sleep conclusion: use dev_kfree_skb() in lan743x_rx_release_ring_element(): called by lan743x_rx_close() which can-sleep called by lan743x_rx_open() which can-sleep conclusion: use dev_kfree_skb() Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver") Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com> Link: https://lore.kernel.org/r/20201112185949.11315-1-TheSven73@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24bnxt_en: read EEPROM A2h address using page 0Edwin Peer
[ Upstream commit 4260330b32b14330cfe427d568ac5f5b29b5be3d ] The module eeprom address range returned by bnxt_get_module_eeprom() should be 256 bytes of A0h address space, the lower half of the A2h address space, and page 0 for the upper half of the A2h address space. Fix the firmware call by passing page_number 0 for the A2h slave address space. Fixes: 42ee18fe4ca2 ("bnxt_en: Add Support for ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPRO") Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-24atm: nicstar: Unmap DMA on send errorSebastian Andrzej Siewior
[ Upstream commit 6dceaa9f56e22d0f9b4c4ad2ed9e04e315ce7fe5 ] The `skb' is mapped for DMA in ns_send() but does not unmap DMA in case push_scqe() fails to submit the `skb'. The memory of the `skb' is released so only the DMA mapping is leaking. Unmap the DMA mapping in case push_scqe() failed. Fixes: 864a3ff635fa7 ("atm: [nicstar] remove virt_to_bus() and support 64-bit platforms") Cc: Chas Williams <3chas3@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-22ACPI: GED: fix -WformatNick Desaulniers
commit 9debfb81e7654fe7388a49f45bc4d789b94c1103 upstream. Clang is more aggressive about -Wformat warnings when the format flag specifies a type smaller than the parameter. It turns out that gsi is an int. Fixes: drivers/acpi/evged.c:105:48: warning: format specifies type 'unsigned char' but the argument has type 'unsigned int' [-Wformat] trigger == ACPI_EDGE_SENSITIVE ? 'E' : 'L', gsi); ^~~ Link: https://github.com/ClangBuiltLinux/linux/issues/378 Fixes: ea6f3af4c5e6 ("ACPI: GED: add support for _Exx / _Lxx handler methods") Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-22Input: sunkbd - avoid use-after-free in teardown pathsDmitry Torokhov
commit 77e70d351db7de07a46ac49b87a6c3c7a60fca7e upstream. We need to make sure we cancel the reinit work before we tear down the driver structures. Reported-by: Bodong Zhao <nopitydays@gmail.com> Tested-by: Bodong Zhao <nopitydays@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18random32: make prandom_u32() output unpredictableGeorge Spelvin
commit c51f8f88d705e06bd696d7510aff22b33eb8e638 upstream. Non-cryptographic PRNGs may have great statistical properties, but are usually trivially predictable to someone who knows the algorithm, given a small sample of their output. An LFSR like prandom_u32() is particularly simple, even if the sample is widely scattered bits. It turns out the network stack uses prandom_u32() for some things like random port numbers which it would prefer are *not* trivially predictable. Predictability led to a practical DNS spoofing attack. Oops. This patch replaces the LFSR with a homebrew cryptographic PRNG based on the SipHash round function, which is in turn seeded with 128 bits of strong random key. (The authors of SipHash have *not* been consulted about this abuse of their algorithm.) Speed is prioritized over security; attacks are rare, while performance is always wanted. Replacing all callers of prandom_u32() is the quick fix. Whether to reinstate a weaker PRNG for uses which can tolerate it is an open question. Commit f227e3ec3b5c ("random32: update the net random state on interrupt and activity") was an earlier attempt at a solution. This patch replaces it. Reported-by: Amit Klein <aksecurity@gmail.com> Cc: Willy Tarreau <w@1wt.eu> Cc: Eric Dumazet <edumazet@google.com> Cc: "Jason A. Donenfeld" <Jason@zx2c4.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: tytso@mit.edu Cc: Florian Westphal <fw@strlen.de> Cc: Marc Plumb <lkml.mplumb@gmail.com> Fixes: f227e3ec3b5c ("random32: update the net random state on interrupt and activity") Signed-off-by: George Spelvin <lkml@sdf.org> Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/ [ willy: partial reversal of f227e3ec3b5c; moved SIPROUND definitions to prandom.h for later use; merged George's prandom_seed() proposal; inlined siprand_u32(); replaced the net_rand_state[] array with 4 members to fix a build issue; cosmetic cleanups to make checkpatch happy; fixed RANDOM32_SELFTEST build ] [wt: backported to 4.19 -- various context adjustments] Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18r8169: fix potential skb double free in an error pathHeiner Kallweit
[ Upstream commit cc6528bc9a0c901c83b8220a2e2617f3354d6dd9 ] The caller of rtl8169_tso_csum_v2() frees the skb if false is returned. eth_skb_pad() internally frees the skb on error what would result in a double free. Therefore use __skb_put_padto() directly and instruct it to not free the skb on error. Fixes: b423e9ae49d7 ("r8169: fix offloaded tx checksum for small packets.") Reported-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/f7e68191-acff-9ded-4263-c016428a8762@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18vrf: Fix fast path output packet handling with async Netfilter rulesMartin Willi
[ Upstream commit 9e2b7fa2df4365e99934901da4fb4af52d81e820 ] VRF devices use an optimized direct path on output if a default qdisc is involved, calling Netfilter hooks directly. This path, however, does not consider Netfilter rules completing asynchronously, such as with NFQUEUE. The Netfilter okfn() is called for asynchronously accepted packets, but the VRF never passes that packet down the stack to send it out over the slave device. Using the slower redirect path for this seems not feasible, as we do not know beforehand if a Netfilter hook has asynchronously completing rules. Fix the use of asynchronously completing Netfilter rules in OUTPUT and POSTROUTING by using a special completion function that additionally calls dst_output() to pass the packet down the stack. Also, slightly adjust the use of nf_reset_ct() so that is called in the asynchronous case, too. Fixes: dcdd43c41e60 ("net: vrf: performance improvements for IPv4") Fixes: a9ec54d1b0cd ("net: vrf: performance improvements for IPv6") Signed-off-by: Martin Willi <martin@strongswan.org> Link: https://lore.kernel.org/r/20201106073030.3974927-1-martin@strongswan.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18erofs: derive atime instead of leaving it emptyGao Xiang
commit d3938ee23e97bfcac2e0eb6b356875da73d700df upstream. EROFS has _only one_ ondisk timestamp (ctime is currently documented and recorded, we might also record mtime instead with a new compat feature if needed) for each extended inode since EROFS isn't mainly for archival purposes so no need to keep all timestamps on disk especially for Android scenarios due to security concerns. Also, romfs/cramfs don't have their own on-disk timestamp, and squashfs only records mtime instead. Let's also derive access time from ondisk timestamp rather than leaving it empty, and if mtime/atime for each file are really needed for specific scenarios as well, we can also use xattrs to record them then. Link: https://lore.kernel.org/r/20201031195102.21221-1-hsiangkao@aol.com [ Gao Xiang: It'd be better to backport for user-friendly concern. ] Fixes: 431339ba9042 ("staging: erofs: add inode operations") Cc: stable <stable@vger.kernel.org> # 4.19+ Reported-by: nl6720 <nl6720@gmail.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> [ Gao Xiang: Manually backport to 4.19.y due to trivial conflicts. ] Signed-off-by: Gao Xiang <hsiangkao@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18pinctrl: amd: fix incorrect way to disable debounce filterCoiby Xu
commit 06abe8291bc31839950f7d0362d9979edc88a666 upstream. The correct way to disable debounce filter is to clear bit 5 and 6 of the register. Cc: stable@vger.kerne.org Signed-off-by: Coiby Xu <coiby.xu@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Cc: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/linux-gpio/df2c008b-e7b5-4fdd-42ea-4d1c62b52139@redhat.com/ Link: https://lore.kernel.org/r/20201105231912.69527-2-coiby.xu@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18pinctrl: amd: use higher precision for 512 RtcClkCoiby Xu
commit c64a6a0d4a928c63e5bc3b485552a8903a506c36 upstream. RTC is 32.768kHz thus 512 RtcClk equals 15625 usec. The documentation likely has dropped precision and that's why the driver mistakenly took the slightly deviated value. Cc: stable@vger.kernel.org Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com> Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Coiby Xu <coiby.xu@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/linux-gpio/2f4706a1-502f-75f0-9596-cc25b4933b6c@redhat.com/ Link: https://lore.kernel.org/r/20201105231912.69527-3-coiby.xu@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18drm/gma500: Fix out-of-bounds access to struct drm_device.vblank[]Thomas Zimmermann
commit 06ad8d339524bf94b89859047822c31df6ace239 upstream. The gma500 driver expects 3 pipelines in several it's IRQ functions. Accessing struct drm_device.vblank[], this fails with devices that only have 2 pipelines. An example KASAN report is shown below. [ 62.267688] ================================================================== [ 62.268856] BUG: KASAN: slab-out-of-bounds in psb_irq_postinstall+0x250/0x3c0 [gma500_gfx] [ 62.269450] Read of size 1 at addr ffff8880012bc6d0 by task systemd-udevd/285 [ 62.269949] [ 62.270192] CPU: 0 PID: 285 Comm: systemd-udevd Tainted: G E 5.10.0-rc1-1-default+ #572 [ 62.270807] Hardware name: /DN2800MT, BIOS MTCDT10N.86A.0164.2012.1213.1024 12/13/2012 [ 62.271366] Call Trace: [ 62.271705] dump_stack+0xae/0xe5 [ 62.272180] print_address_description.constprop.0+0x17/0xf0 [ 62.272987] ? psb_irq_postinstall+0x250/0x3c0 [gma500_gfx] [ 62.273474] __kasan_report.cold+0x20/0x38 [ 62.273989] ? psb_irq_postinstall+0x250/0x3c0 [gma500_gfx] [ 62.274460] kasan_report+0x3a/0x50 [ 62.274891] psb_irq_postinstall+0x250/0x3c0 [gma500_gfx] [ 62.275380] drm_irq_install+0x131/0x1f0 <...> [ 62.300751] Allocated by task 285: [ 62.301223] kasan_save_stack+0x1b/0x40 [ 62.301731] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 62.302293] drmm_kmalloc+0x55/0x100 [ 62.302773] drm_vblank_init+0x77/0x210 Resolve the issue by only handling vblank entries up to the number of CRTCs. I'm adding a Fixes tag for reference, although the bug has been present since the driver's initial commit. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Fixes: 5c49fd3aa0ab ("gma500: Add the core DRM files and headers") Cc: Alan Cox <alan@linux.intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: dri-devel@lists.freedesktop.org Cc: stable@vger.kernel.org#v3.3+ Link: https://patchwork.freedesktop.org/patch/msgid/20201105190256.3893-1-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18mmc: renesas_sdhi_core: Add missing tmio_mmc_host_free() at removeYoshihiro Shimoda
commit e8973201d9b281375b5a8c66093de5679423021a upstream. The commit 94b110aff867 ("mmc: tmio: add tmio_mmc_host_alloc/free()") added tmio_mmc_host_free(), but missed the function calling in the sh_mobile_sdhi_remove() at that time. So, fix it. Otherwise, we cannot rebind the sdhi/mmc devices when we use aliases of mmc. Fixes: 94b110aff867 ("mmc: tmio: add tmio_mmc_host_alloc/free()") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1604654730-29914-1-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18gpio: pcie-idio-24: Enable PEX8311 interruptsArnaud de Turckheim
commit 10a2f11d3c9e48363c729419e0f0530dea76e4fe upstream. This enables the PEX8311 internal PCI wire interrupt and the PEX8311 local interrupt input so the local interrupts are forwarded to the PCI. Fixes: 585562046628 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family") Cc: stable@vger.kernel.org Signed-off-by: Arnaud de Turckheim <quarium@gmail.com> Reviewed-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18gpio: pcie-idio-24: Fix IRQ Enable Register valueArnaud de Turckheim
commit 23a7fdc06ebcc334fa667f0550676b035510b70b upstream. This fixes the COS Enable Register value for enabling/disabling the corresponding IRQs bank. Fixes: 585562046628 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family") Cc: stable@vger.kernel.org Signed-off-by: Arnaud de Turckheim <quarium@gmail.com> Reviewed-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>