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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: 96cb4eb019 ("watchdog: f71808e_wdt: new watchdog driver for Fintek F71808E and F71882FG")
Cc: stable@vger.kernel.org
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200611191750.28096-4-a.fatoum@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: b97cb21a46 ("watchdog: f71808e_wdt: Fix WDTMOUT_STS register read")
Cc: stable@vger.kernel.org
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200611191750.28096-3-a.fatoum@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200611191750.28096-2-a.fatoum@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-8-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-7-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-6-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-5-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-4-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-3-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@vger.kernel.org
Link: https://lore.kernel.org/r/20200530073557.22661-2-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Commit 5c24a28b4e ("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: Guenter Roeck <linux@roeck-us.net>
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: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Use kobj_to_dev() API instead of container_of().
Signed-off-by: Wang Qing <wangqing@vivo.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1591945384-14587-1-git-send-email-wangqing@vivo.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1590391864-308-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200529094514.26374-1-frank@allwinnertech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200529012428.84684-1-k.bumsik@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200504141427.17685-5-michaelsh@mellanox.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Michael Shych <michaelsh@mellanox.com>
Reviewed-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200504141427.17685-4-michaelsh@mellanox.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Michael Shych <michaelsh@mellanox.com>
Reviewed-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200504141427.17685-3-michaelsh@mellanox.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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: Michael Shych <michaelsh@mellanox.com>
Reviewed-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200504141427.17685-2-michaelsh@mellanox.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
- 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
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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
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
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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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
Here is 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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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()
Here are 5 small staging driver fixes for 5.8-rc7 to resolve some
reported problems:
- 4 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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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
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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty into master
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.
Here are 3 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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb into master
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
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.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi into master
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
I have 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.
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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
- 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
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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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
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master
Pull timer fix from Ingo Molnar:
"Fix a suspend/resume regression (crash) on TI AM3/AM4 SoC's"
* tag 'timers-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/timer-ti-dm: Fix suspend and resume for am3 and am4
debug check for a hard to debug case of bogus wakeup function flags.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master
Pull scheduler fixes from Ingo Molnar:
"Fix a race introduced by the recent loadavg race fix, plus add a debug
check for a hard to debug case of bogus wakeup function flags"
* tag 'sched-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Warn if garbage is passed to default_wake_function()
sched: Fix race against ptrace_freeze_trace()
- Fix the layering violation in the use of the EFI runtime services
availability mask in users of the 'efivars' abstraction
- Revert build fix for GCC v4.8 which is no longer supported
- Clean up some x86 EFI stub details, some of which are borderline bugs
that copy around garbage into padding fields - let's fix these
out of caution.
- Fix build issues while working on RISC-V support
- Avoid --whole-archive when linking the stub on arm64
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master
Pull EFI fixes from Ingo Molnar:
"Various EFI fixes:
- Fix the layering violation in the use of the EFI runtime services
availability mask in users of the 'efivars' abstraction
- Revert build fix for GCC v4.8 which is no longer supported
- Clean up some x86 EFI stub details, some of which are borderline
bugs that copy around garbage into padding fields - let's fix these
out of caution.
- Fix build issues while working on RISC-V support
- Avoid --whole-archive when linking the stub on arm64"
* tag 'efi-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Revert "efi/x86: Fix build with gcc 4"
efi/efivars: Expose RT service availability via efivars abstraction
efi/libstub: Move the function prototypes to header file
efi/libstub: Fix gcc error around __umoddi3 for 32 bit builds
efi/libstub/arm64: link stub lib.a conditionally
efi/x86: Only copy upto the end of setup_header
efi/x86: Remove unused variables
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Merge tag '5.8-rc6-cifs-fix' of git://git.samba.org/sfrench/cifs-2.6 into master
Pull cifs fix from Steve French:
"A fix for a recently discovered regression in rename to older servers
caused by a recent patch"
* tag '5.8-rc6-cifs-fix' of git://git.samba.org/sfrench/cifs-2.6:
Revert "cifs: Fix the target file was deleted when rename failed."
Pull networking fixes from David Miller:
1) Fix RCU locaking in iwlwifi, from Johannes Berg.
2) mt76 can access uninitialized NAPI struct, from Felix Fietkau.
3) Fix race in updating pause settings in bnxt_en, from Vasundhara
Volam.
4) Propagate error return properly during unbind failures in ax88172a,
from George Kennedy.
5) Fix memleak in adf7242_probe, from Liu Jian.
6) smc_drv_probe() can leak, from Wang Hai.
7) Don't muck with the carrier state if register_netdevice() fails in
the bonding driver, from Taehee Yoo.
8) Fix memleak in dpaa_eth_probe, from Liu Jian.
9) Need to check skb_put_padto() return value in hsr_fill_tag(), from
Murali Karicheri.
10) Don't lose ionic RSS hash settings across FW update, from Shannon
Nelson.
11) Fix clobbered SKB control block in act_ct, from Wen Xu.
12) Missing newlink in "tx_timeout" sysfs output, from Xiongfeng Wang.
13) IS_UDPLITE cleanup a long time ago, incorrectly handled
transformations involving UDPLITE_RECV_CC. From Miaohe Lin.
14) Unbalanced locking in netdevsim, from Taehee Yoo.
15) Suppress false-positive error messages in qed driver, from Alexander
Lobakin.
16) Out of bounds read in ax25_connect and ax25_sendmsg, from Peilin Ye.
17) Missing SKB release in cxgb4's uld_send(), from Navid Emamdoost.
18) Uninitialized value in geneve_changelink(), from Cong Wang.
19) Fix deadlock in xen-netfront, from Andera Righi.
19) flush_backlog() frees skbs with IRQs disabled, so should use
dev_kfree_skb_irq() instead of kfree_skb(). From Subash Abhinov
Kasiviswanathan.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (111 commits)
drivers/net/wan: lapb: Corrected the usage of skb_cow
dev: Defer free of skbs in flush_backlog
qrtr: orphan socket in qrtr_release()
xen-netfront: fix potential deadlock in xennet_remove()
flow_offload: Move rhashtable inclusion to the source file
geneve: fix an uninitialized value in geneve_changelink()
bonding: check return value of register_netdevice() in bond_newlink()
tcp: allow at most one TLP probe per flight
AX.25: Prevent integer overflows in connect and sendmsg
cxgb4: add missing release on skb in uld_send()
net: atlantic: fix PTP on AQC10X
AX.25: Prevent out-of-bounds read in ax25_sendmsg()
sctp: shrink stream outq when fails to do addstream reconf
sctp: shrink stream outq only when new outcnt < old outcnt
AX.25: Fix out-of-bounds read in ax25_connect()
enetc: Remove the mdio bus on PF probe bailout
net: ethernet: ti: add NETIF_F_HW_TC hw feature flag for taprio offload
net: ethernet: ave: Fix error returns in ave_init
drivers/net/wan/x25_asy: Fix to make it work
ipvs: fix the connection sync failed in some cases
...
Currently, maximum physical memory allowed is equal to -PAGE_OFFSET.
That's why we remove any memory blocks spanning beyond that size. However,
it is done only for memblock containing linux kernel which will not work
if there are multiple memblocks.
Process all memory blocks to figure out how much memory needs to be removed
and remove at the end instead of updating the memblock list in place.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This patch fixed 2 issues with the usage of skb_cow in LAPB drivers
"lapbether" and "hdlc_x25":
1) After skb_cow fails, kfree_skb should be called to drop a reference
to the skb. But in both drivers, kfree_skb is not called.
2) skb_cow should be called before skb_push so that is can ensure the
safety of skb_push. But in "lapbether", it is incorrectly called after
skb_push.
More details about these 2 issues:
1) The behavior of calling kfree_skb on failure is also the behavior of
netif_rx, which is called by this function with "return netif_rx(skb);".
So this function should follow this behavior, too.
2) In "lapbether", skb_cow is called after skb_push. This results in 2
logical issues:
a) skb_push is not protected by skb_cow;
b) An extra headroom of 1 byte is ensured after skb_push. This extra
headroom has no use in this function. It also has no use in the
upper-layer function that this function passes the skb to
(x25_lapb_receive_frame in net/x25/x25_dev.c).
So logically skb_cow should instead be called before skb_push.
Cc: Eric Dumazet <edumazet@google.com>
Cc: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
IRQs are disabled when freeing skbs in input queue.
Use the IRQ safe variant to free skbs here.
Fixes: 145dd5f9c8 ("net: flush the softnet backlog in process context")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, maximum number of mapper pages are set to the pfn calculated
from the memblock size of the memblock containing kernel. This will work
until that memblock spans the entire memory. However, it will be set to
a wrong value if there are multiple memblocks defined in kernel
(e.g. with efi runtime services).
Set the the maximum value to the pfn calculated from dram size.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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Merge tag 'pci-v5.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into master
Pull PCI fixes from Bjorn Helgaas:
- Reject invalid IRQ 0 command line argument for virtio_mmio because
IRQ 0 now generates warnings (Bjorn Helgaas)
- Revert "PCI/PM: Assume ports without DLL Link Active train links in
100 ms", which broke nouveau (Bjorn Helgaas)
* tag 'pci-v5.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"
virtio-mmio: Reject invalid IRQ 0 command line argument
We have to detach sock from socket in qrtr_release(),
otherwise skb->sk may still reference to this socket
when the skb is released in tun->queue, particularly
sk->sk_wq still points to &sock->wq, which leads to
a UAF.
Reported-and-tested-by: syzbot+6720d64f31c081c2f708@syzkaller.appspotmail.com
Fixes: 28fb4e59a4 ("net: qrtr: Expose tunneling endpoint to user space")
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Second set of fixes for v5.8, and hopefully also the last. Three
important regressions fixed.
ath9k
* fix a regression which broke support for all ath9k usb devices
ath10k
* fix a regression which broke support for all QCA4019 AHB devices
iwlwifi
* fix a regression which broke support for some Killer Wireless-AC 1550 cards
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Merge tag 'wireless-drivers-2020-07-24' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for v5.8
Second set of fixes for v5.8, and hopefully also the last. Three
important regressions fixed.
ath9k
* fix a regression which broke support for all ath9k usb devices
ath10k
* fix a regression which broke support for all QCA4019 AHB devices
iwlwifi
* fix a regression which broke support for some Killer Wireless-AC 1550 cards
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
There's a potential race in xennet_remove(); this is what the driver is
doing upon unregistering a network device:
1. state = read bus state
2. if state is not "Closed":
3. request to set state to "Closing"
4. wait for state to be set to "Closing"
5. request to set state to "Closed"
6. wait for state to be set to "Closed"
If the state changes to "Closed" immediately after step 1 we are stuck
forever in step 4, because the state will never go back from "Closed" to
"Closing".
Make sure to check also for state == "Closed" in step 4 to prevent the
deadlock.
Also add a 5 sec timeout any time we wait for the bus state to change,
to avoid getting stuck forever in wait_event().
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
/proc/fs/nfsd/client/../state at the wrong moment.
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Merge tag 'nfsd-5.8-2' of git://linux-nfs.org/~bfields/linux into master
Pull nfsd fix from Bruce Fields:
"Just one fix for a NULL dereference if someone happens to read
/proc/fs/nfsd/client/../state at the wrong moment"
* tag 'nfsd-5.8-2' of git://linux-nfs.org/~bfields/linux:
nfsd4: fix NULL dereference in nfsd/clients display code
I noticed that touching linux/rhashtable.h causes lib/vsprintf.c to
be rebuilt. This dependency came through a bogus inclusion in the
file net/flow_offload.h. This patch moves it to the right place.
This patch also removes a lingering rhashtable inclusion in cls_api
created by the same commit.
Fixes: 4e481908c5 ("flow_offload: move tc indirect block to...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge misc fixes from Andrew Morton:
"Subsystems affected by this patch series: mm/pagemap, mm/shmem,
mm/hotfixes, mm/memcg, mm/hugetlb, mailmap, squashfs, scripts,
io-mapping, MAINTAINERS, and gdb"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
scripts/gdb: fix lx-symbols 'gdb.error' while loading modules
MAINTAINERS: add KCOV section
io-mapping: indicate mapping failure
scripts/decode_stacktrace: strip basepath from all paths
squashfs: fix length field overlap check in metadata reading
mailmap: add entry for Mike Rapoport
khugepaged: fix null-pointer dereference due to race
mm/hugetlb: avoid hardcoding while checking if cma is enabled
mm: memcg/slab: fix memory leak at non-root kmem_cache destroy
mm/memcg: fix refcount error while moving and swapping
mm/memcontrol: fix OOPS inside mem_cgroup_get_nr_swap_pages()
mm: initialize return of vm_insert_pages
vfs/xattr: mm/shmem: kernfs: release simple xattr entry in a right way
mm/mmap.c: close race between munmap() and expand_upwards()/downwards()
