- Aug 06, 2020
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Lad Prabhakar authored
RZ/G2H (a.k.a. R8A774E1) watchdog implementation is compatible with R-Car Gen3, therefore add the relevant documentation. Signed-off-by:
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Acked-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1594811350-14066-17-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by:
Wim Van Sebroeck <wim@linux-watchdog.org>
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Krzysztof Sobota authored
When watchdog device is being registered, it calls misc_register that makes watchdog available for systemd to open. This is a data race scenario, because when device is open it may still have device struct not initialized - this in turn causes a crash. This patch moves device initialization before misc_register call and it solves the problem printed below. ------------[ cut here ]------------ WARNING: CPU: 3 PID: 1 at lib/kobject.c:612 kobject_get+0x50/0x54 kobject: '(null)' ((ptrval)): is not initialized, yet kobject_get() is being called. Modules linked in: k2_reset_status(O) davinci_wdt(+) sfn_platform_hwbcn(O) fsmddg_sfn(O) clk_misc_mmap(O) clk_sw_bcn(O) fsp_reset(O) cma_mod(O) slave_sup_notif(O) fpga_master(O) latency(O+) evnotify(O) enable_arm_pmu(O) xge(O) rio_mport_cdev br_netfilter bridge stp llc nvrd_checksum(O) ipv6 CPU: 3 PID: 1 Comm: systemd Tainted: G O 4.19.113-g2579778-fsm4_k2 #1 Hardware name: Keystone [<c02126c4>] (unwind_backtrace) from [<c020da94>] (show_stack+0x18/0x1c) [<c020da94>] (show_stack) from [<c07f87d8>] (dump_stack+0xb4/0xe8) [<c07f87d8>] (dump_stack) from [<c0221f70>] (__warn+0xfc/0x114) [<c0221f70>] (__warn) from [<c0221fd8>] (warn_slowpath_fmt+0x50/0x74) [<c0221fd8>] (warn_slowpath_fmt) from [<c07fd394>] (kobject_get+0x50/0x54) [<c07fd394>] (kobject_get) from [<c0602ce8>] (get_device+0x1c/0x24) [<c0602ce8>] (get_device) from [<c06961e0>] (watchdog_open+0x90/0xf0) [<c06961e0>] (watchdog_open) from [<c06001dc>] (misc_open+0x130/0x17c) [<c06001dc>] (misc_open) from [<c0388228>] (chrdev_open+0xec/0x1a8) [<c0388228>] (chrdev_open) from [<c037fa98>] (do_dentry_open+0x204/0x3cc) [<c037fa98>] (do_dentry_open) from [<c0391e2c>] (path_openat+0x330/0x1148) [<c0391e2c>] (path_openat) from [<c0394518>] (do_filp_open+0x78/0xec) [<c0394518>] (do_filp_open) from [<c0381100>] (do_sys_open+0x130/0x1f4) [<c0381100>] (do_sys_open) from [<c0201000>] (ret_fast_syscall+0x0/0x28) Exception stack(0xd2ceffa8 to 0xd2cefff0) ffa0: b6f69968 00000000 ffffff9c b6ebd210 000a0001 00000000 ffc0: b6f69968 00000000 00000000 00000142 fffffffd ffffffff 00b65530 bed7bb78 ffe0: 00000142 bed7ba70 b6cc2503 b6cc41d6 ---[ end trace 7b16eb105513974f ]--- ------------[ cut here ]------------ WARNING: CPU: 3 PID: 1 at lib/refcount.c:153 kobject_get+0x24/0x54 refcount_t: increment on 0; use-after-free. Modules linked in: k2_reset_status(O) davinci_wdt(+) sfn_platform_hwbcn(O) fsmddg_sfn(O) clk_misc_mmap(O) clk_sw_bcn(O) fsp_reset(O) cma_mod(O) slave_sup_notif(O) fpga_master(O) latency(O+) evnotify(O) enable_arm_pmu(O) xge(O) rio_mport_cdev br_netfilter bridge stp llc nvrd_checksum(O) ipv6 CPU: 3 PID: 1 Comm: systemd Tainted: G W O 4.19.113-g2579778-fsm4_k2 #1 Hardware name: Keystone [<c02126c4>] (unwind_backtrace) from [<c020da94>] (show_stack+0x18/0x1c) [<c020da94>] (show_stack) from [<c07f87d8>] (dump_stack+0xb4/0xe8) [<c07f87d8>] (dump_stack) from [<c0221f70>] (__warn+0xfc/0x114) [<c0221f70>] (__warn) from [<c0221fd8>] (warn_slowpath_fmt+0x50/0x74) [<c0221fd8>] (warn_slowpath_fmt) from [<c07fd368>] (kobject_get+0x24/0x54) [<c07fd368>] (kobject_get) from [<c0602ce8>] (get_device+0x1c/0x24) [<c0602ce8>] (get_device) from [<c06961e0>] (watchdog_open+0x90/0xf0) [<c06961e0>] (watchdog_open) from [<c06001dc>] (misc_open+0x130/0x17c) [<c06001dc>] (misc_open) from [<c0388228>] (chrdev_open+0xec/0x1a8) [<c0388228>] (chrdev_open) from [<c037fa98>] (do_dentry_open+0x204/0x3cc) [<c037fa98>] (do_dentry_open) from [<c0391e2c>] (path_openat+0x330/0x1148) [<c0391e2c>] (path_openat) from [<c0394518>] (do_filp_open+0x78/0xec) [<c0394518>] (do_filp_open) from [<c0381100>] (do_sys_open+0x130/0x1f4) [<c0381100>] (do_sys_open) from [<c0201000>] (ret_fast_syscall+0x0/0x28) Exception stack(0xd2ceffa8 to 0xd2cefff0) ffa0: b6f69968 00000000 ffffff9c b6ebd210 000a0001 00000000 ffc0: b6f69968 00000000 00000000 00000142 fffffffd ffffffff 00b65530 bed7bb78 ffe0: 00000142 bed7ba70 b6cc2503 b6cc41d6 ---[ end trace 7b16eb1055139750 ]--- Fixes: 72139dfa ("watchdog: Fix the race between the release of watchdog_core_data and cdev") Reviewed-by:
Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by:
Krzysztof Sobota <krzysztof.sobota@nokia.com> Link: https://lore.kernel.org/r/20200717103109.14660-1-krzysztof.sobota@nokia.com Signed-off-by:
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Timothy Myers authored
Add the common "nowayout" parameter to booke_wdt to make this behavior selectable at runtime and to make the implementation more consistent with many other watchdog drivers. Signed-off-by:
Timothy Myers <timothy.myers@adtran.com> Reviewed-by:
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Gustavo A. R. Silva authored
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7-rc7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by:
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Gustavo A. R. Silva authored
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by:
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Ahmad Fatoum authored
We check the f71862fg_pin module parameter every time a watchdog device for the f71862fg is opened, but the parameter can't change at runtime. If we move the check to the start of init: - We catch userspace passing invalid, but unused, values - We check the condition only once - We simplify the code Do so. Signed-off-by:
Ahmad Fatoum <a.fatoum@pengutronix.de> Reviewed-by:
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Ahmad Fatoum authored
The flag indicating a watchdog timeout having occurred normally persists till Power-On Reset of the Fintek Super I/O chip. The user can clear it by writing a `1' to the bit. The driver doesn't offer a restart method, so regular system reboot might not reset the Super I/O and if the watchdog isn't enabled, we won't touch the register containing the bit on the next boot. In this case all subsequent regular reboots will be wrongly flagged by the driver as being caused by the watchdog. Fix this by having the flag cleared after read. This is also done by other drivers like those for the i6300esb and mpc8xxx_wdt. Fixes: b97cb21a ("watchdog: f71808e_wdt: Fix WDTMOUT_STS register read") Cc: stable@vger.kernel.org Signed-off-by:
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Ahmad Fatoum authored
The flags that should be or-ed into the watchdog_info.options by drivers all start with WDIOF_, e.g. WDIOF_SETTIMEOUT, which indicates that the driver's watchdog_ops has a usable set_timeout. WDIOC_SETTIMEOUT was used instead, which expands to 0xc0045706, which equals: WDIOF_FANFAULT | WDIOF_EXTERN1 | WDIOF_PRETIMEOUT | WDIOF_ALARMONLY | WDIOF_MAGICCLOSE | 0xc0045000 These were so far indicated to userspace on WDIOC_GETSUPPORT. As the driver has not yet been migrated to the new watchdog kernel API, the constant can just be dropped without substitute. Fixes: 96cb4eb0 ("watchdog: f71808e_wdt: new watchdog driver for Fintek F71808E and F71882FG") Cc: stable@vger.kernel.org Signed-off-by:
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Ahmad Fatoum authored
The driver supports populating bootstatus with WDIOF_CARDRESET, but so far userspace couldn't portably determine whether absence of this flag meant no watchdog reset or no driver support. Or-in the bit to fix this. Fixes: b97cb21a ("watchdog: f71808e_wdt: Fix WDTMOUT_STS register read") Cc: stable@vger.kernel.org Signed-off-by:
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Ahmad Fatoum authored
The FIXME comment has been in-tree since the very first git commit. The described behavior has been since relied on by some userspace, e.g. the util-linux wdctl command and has been ignored by some kernelspace, like the f71808e_wdt driver. The functionality is useful to have to be able to differentiate between a driver that doesn't support WDIOF_CARDRESET and one that does, but hasn't had a watchdog reset, thus drop the FIXME to encourage drivers adopting this convention. Signed-off-by:
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Sai Prakash Ranjan authored
Add missing compatible for watchdog timer on QCS404, SC7180, SDM845 and SM8150 SoCs. Signed-off-by:
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Reviewed-by:
Stephen Boyd <swboyd@chromium.org> Acked-by:
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Sai Prakash Ranjan authored
Convert QCOM watchdog timer bindings to DT schema format using json-schema. Signed-off-by:
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Serge Semin authored
For the sake of the easier device-driver debug procedure, we added a DebugFS file with the controller registers state. It's available only if kernel is configured with DebugFS support. Signed-off-by:
Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by:
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Serge Semin authored
DW Watchdog can rise an interrupt in case if IRQ request mode is enabled and timer reaches the zero value. In this case the IRQ lane is left pending until either the next watchdog kick event (watchdog restart) or until the WDT_EOI register is read or the device/system reset. This interface can be used to implement the pre-timeout functionality optionally provided by the Linux kernel watchdog devices. IRQ mode provides a two stages timeout interface. It means the IRQ is raised when the counter reaches zero, while the system reset occurs only after subsequent timeout if the timer restart is not performed. Due to this peculiarity the pre-timeout value is actually set to the achieved hardware timeout, while the real watchdog timeout is considered to be twice as much of it. This applies a significant limitation on the pre-timeout values, so current implementation supports either zero value, which disables the pre-timeout events, or non-zero values, which imply the pre-timeout to be at least half of the current watchdog timeout. Note that we ask the interrupt controller to detect the rising-edge pre-timeout interrupts to prevent the high-level-IRQs flood, since if the pre-timeout happens, the IRQ lane will be left pending until it's cleared by the timer restart. Signed-off-by:
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Serge Semin authored
DW Watchdog IP core can be synthesised with asynchronous timer/APB clocks support (WDT_ASYNC_CLK_MODE_ENABLE == 1). In this case separate clock signals are supposed to be used to feed watchdog timer and APB interface of the device. Currently the driver supports the synchronous mode only. Since there is no way to determine which mode was actually activated for device from its registers, we have to rely on the platform device configuration data. If optional "pclk" clock source is supplied, we consider the device working in asynchronous mode, otherwise the driver falls back to the synchronous configuration. Signed-off-by:
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Serge Semin authored
In case if the DW Watchdog IP core is synthesised with WDT_USE_FIX_TOP == false, the TOP interval indexes make the device to load a custom periods to the counter. These periods are hardwired at the IP synthesis stage and can be within [2^8, 2^(WDT_CNT_WIDTH - 1)]. Alas their values can't be detected at runtime and must be somehow supplied to the driver so one could properly determine the watchdog timeout intervals. For this purpose we suggest to have a vendor- specific dts property "snps,watchdog-tops" utilized, which would provide an array of sixteen counter values. At device probe stage they will be used to initialize the watchdog device timeouts determined from the array values and current clocks source rate. In order to have custom TOP values supported the driver must be altered in the following way. First of all the fixed-top values ready-to-use array must be determined for compatibility with currently supported devices, which were synthesised with WDT_USE_FIX_TOP == true. It will be used if either fixed TOP feature is detected being enabled or no custom TOPs are fetched from the device dt node. Secondly at the probe stage we must initialize an array of the watchdog timeouts corresponding to the detected TOPs list and the reference clock rate. For generality the procedure of initialization is designed in a way to support the TOPs array with no limitations on the items order or value. Finally the watchdog period search methods should be altered to support the new timeouts data structure. Signed-off-by:
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Serge Semin authored
In case if DW Watchdog IP core is built with WDT_USE_FIX_TOP == false, a custom timeout periods are used to preset the timer counter. In this case that periods should be specified in a new "snps,watchdog-tops" property of the DW watchdog dts node. Signed-off-by:
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Serge Semin authored
DW Watchdog IP core can be synthesised with asynchronous timer/APB clocks support (WDT_ASYNC_CLK_MODE_ENABLE == 1). In this case separate clock signals are supposed to be used to feed watchdog timer and APB interface of the device. Let's update the DW Watchdog DT node schema so it would support the optional APB3 bus clock specified along with the mandatory watchdog timer reference clock. Signed-off-by:
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Serge Semin authored
Modern device tree bindings are supposed to be created as YAML-files in accordance with dt-schema. This commit replaces the DW Watchdog legacy bare text bindings with YAML file. As before the binding states that the corresponding dts node is supposed to have a registers range, a watchdog timer references clock source, optional reset line and pre-timeout interrupt. Signed-off-by:
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Lukas Bulwahn authored
Commit 5c24a28b ("dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog") added the new ARM SMC WATCHDOG DRIVER entry in MAINTAINERS, but slipped in a minor mistake. Luckily, ./scripts/get_maintainer.pl --self-test=patterns complains: warning: no file matches F: devicetree/bindings/watchdog/arm-smc-wdt.yaml Update file entry to intended file location. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Reviewed-by:
Julius Werner <jwerner@chromium.org> Reviewed-by:
Evan Benn <evanbenn@chromium.org> Link: https://lore.kernel.org/r/20200602052104.7795-1-lukas.bulwahn@gmail.com Signed-off-by:
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Wang Qing authored
Use kobj_to_dev() API instead of container_of(). Signed-off-by:
Wang Qing <wangqing@vivo.com> Reviewed-by:
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Tiezhu Yang authored
When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed. Signed-off-by:
Tiezhu Yang <yangtiezhu@loongson.cn> Reviewed-by:
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Martin Wu authored
sunxi_wdt_probe() should return -ENOMEM when devm_kzalloc() fails. Signed-off-by:
Martin Wu <wuyan@allwinnertech.com> Signed-off-by:
Frank Lee <frank@allwinnertech.com> Acked-by:
Maxime Ripard <mripard@kernel.org> Reviewed-by:
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Bumsik Kim authored
Use the dedicated function watchdog_active() instead of the generic test_bit() function. It is done using the following Coccinelle script: @@ identifier wdd; @@ - test_bit(WDOG_ACTIVE, &wdd->status) + watchdog_active(wdd) Signed-off-by:
Bumsik Kim <k.bumsik@gmail.com> Reviewed-by:
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Michael Shych authored
Add documentation with details of new type of Mellanox watchdog driver. Signed-off-by:
Michael Shych <michaelsh@mellanox.com> Reviewed-by:
Vadim Pasternak <vadimp@mellanox.com> Acked-by:
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Michael Shych authored
New programmable logic device can have watchdog type 3 implementation. It's same as Type 2 with extended maximum timeout period. Maximum timeout is up-to 65535 sec. Type 3 HW watchdog implementation can exist on all Mellanox systems. It is differentiated by WD capability bit. Signed-off-by:
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Michael Shych authored
Add verification of WD capability in order to distinguish between the existing WD types and new type, implemented in CPLD. Add configuration for a new WD type. Change access mode for watchdog registers. Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200504141427.17685-3-michaelsh@mellanox.com Signed-off-by:
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Michael Shych authored
Add new watchdog type 3 with longer timeout period. Extend size of health_cntr field that that can be used to init watchdog timeout period. Signed-off-by:
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- Jul 27, 2020
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Linus Torvalds authored
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild into master Pull Kbuild fixes from Masahiro Yamada: - do not use non-portable strsep() in a host program - fix single target builds for external modules - change Clang's --prefix option to make it work for the latest Clang * tag 'kbuild-fixes-v5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: Makefile: Fix GCC_TOOLCHAIN_DIR prefix for Clang cross compilation kbuild: fix single target builds for external modules modpost: remove use of non-standard strsep() in HOSTCC code
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Linus Torvalds authored
Merge branch 'parisc-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into master Pull parisc fixes from Helge Deller: "Two fixes: - Add the cmpxchg() function for pointers to u8 values. This fixes a kernel linking error when building the tusb1210 driver (from Liam Beguin). - Add a define for atomic64_set_release() to fix CPU soft lockups which happen because of missing unlocks while processing bit operations (from John David Anglin)" * 'parisc-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Add atomic64_set_release() define to avoid CPU soft lockups parisc: add support for cmpxchg on u8 pointers
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Linus Torvalds authored
Merge tag 'char-misc-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into master Pull char/misc driver fixes from Greg KH: "Here are a few small driver fixes for 5.8-rc7 They include: - habanalabs fixes - tiny fpga driver fixes - /dev/mem fixup from previous changes - interconnect driver fixes - binder fix All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: interconnect: msm8916: Fix buswidth of pcnoc_s nodes interconnect: Do not skip aggregation for disabled paths /dev/mem: Add missing memory barriers for devmem_inode binder: Don't use mmput() from shrinker function. habanalabs: prevent possible out-of-bounds array access fpga: dfl: fix bug in port reset handshake fpga: dfl: pci: reduce the scope of variable 'ret' habanalabs: set 4s timeout for message to device CPU habanalabs: set clock gating per engine habanalabs: block WREG_BULK packet on PDMA
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Linus Torvalds authored
Merge tag 'driver-core-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into master Pull driver core fix from Greg KH: "A single driver core fix for 5.8-rc7. It resolves a problem found in the previous fix for this code made in 5.8-rc6. Hopefully this is all now cleared up, as this seems to be the last of the reported issues in this area, and was tested on the problem hardware. This patch has been in linux-next with no reported problems" * tag 'driver-core-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: device property: Avoid NULL pointer dereference in device_get_next_child_node()
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Linus Torvalds authored
Merge tag 'staging-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging into master Pull staging driver fixes from Greg KH: "Five small staging driver fixes for 5.8-rc7 to resolve some reported problems: - four comedi driver fixes for problems found with them - a syzbot-found fix for the wlang-ng driver that resolves a much reported problem. All of these have been in linux-next with no reported issues" * tag 'staging-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: wlan-ng: properly check endpoint types staging: comedi: addi_apci_1564: check INSN_CONFIG_DIGITAL_TRIG shift staging: comedi: addi_apci_1500: check INSN_CONFIG_DIGITAL_TRIG shift staging: comedi: addi_apci_1032: check INSN_CONFIG_DIGITAL_TRIG shift staging: comedi: ni_6527: fix INSN_CONFIG_DIGITAL_TRIG support
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial/fbcon fixes from Greg KH: "Here are some small tty and serial and fbcon fixes for 5.8-rc7 to resolve some reported issues. The fbcon fix is in here as it was simpler to take it this way (and it was acked by the maintainer) as it was related to the vt console fix as well, both of which resolve syzbot-found issues in the console handling code. The other serial driver fixes are for small issues reported in the -rc releases. All of these have been in linux-next with no reported issues" * tag 'tty-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial: exar: Fix GPIO configuration for Sealevel cards based on XR17V35X fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins. serial: 8250_mtk: Fix high-speed baud rates clamping serial: 8250: fix null-ptr-deref in serial8250_start_tx() serial: tegra: drop bogus NULL tty-port checks serial: tegra: fix CREAD handling for PIO tty: xilinx_uartps: Really fix id assignment vt: Reject zero-sized screen buffer size.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Three small USB XHCI driver fixes for 5.8-rc7. They all resolve some minor issues that have been reported on some different platforms. All of these have been in linux-next with no reported issues" * tag 'usb-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: tegra: Fix allocation for the FPCI context usb: xhci: Fix ASM2142/ASM3142 DMA addressing usb: xhci-mtk: fix the failure of bandwidth allocation
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- Jul 26, 2020
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fix from James Bottomley: "Small core patch to fix a corner case bug: we forgot to run the queues to handle starvation in the error exit from the scsi_queue_rq routine, which can lead to hangs on error conditions" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: core: Run queue in case of I/O resource contention failure
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Linus Torvalds authored
Merge tag 'riscv-for-linus-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux into master Pull RISC-V fixes from Palmer Dabbelt: "A few more fixes this week: - A fix to avoid using SBI calls during kasan initialization, as the SBI calls themselves have not been probed yet. - Three fixes related to systems with multiple memory regions" * tag 'riscv-for-linus-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Parse all memory blocks to remove unusable memory RISC-V: Do not rely on initrd_start/end computed during early dt parsing RISC-V: Set maximum number of mapped pages correctly riscv: kasan: use local_tlb_flush_all() to avoid uninitialized __sbi_rfence
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Linus Torvalds authored
Merge tag 'x86-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master Pull x86 fixes from Ingo Molnar: "Misc fixes: - Fix a section end page alignment assumption that was causing crashes - Fix ORC unwinding on freshly forked tasks which haven't executed yet and which have empty user task stacks - Fix the debug.exception-trace=1 sysctl dumping of user stacks, which was broken by recent maccess changes" * tag 'x86-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/dumpstack: Dump user space code correctly again x86/stacktrace: Fix reliable check for empty user task stacks x86/unwind/orc: Fix ORC for newly forked tasks x86, vmlinux.lds: Page-align end of ..page_aligned sections
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Linus Torvalds authored
Merge tag 'perf-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master Pull uprobe fix from Ingo Molnar: "Fix an interaction/regression between uprobes based shared library tracing & GDB" * tag 'perf-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: uprobes: Change handle_swbp() to send SIGTRAP with si_code=SI_KERNEL, to fix GDB regression
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