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Yangtao Li [Thu, 19 Dec 2019 17:28:17 +0000 (09:28 -0800)]
thermal/drivers/sun8i: Add thermal driver for H6/H5/H3/A64/A83T/R40
This patch adds the support for allwinner thermal sensor, within
allwinner SoC. It will register sensors for thermal framework
and use device tree to bind cooling device.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191219172823.1652600-2-anarsoul@gmail.com
Daniel Lezcano [Thu, 19 Dec 2019 22:21:53 +0000 (23:21 +0100)]
thermal/drivers/of-thermal: Move the of_thermal_free_zone() to the init section
The function of_thermal_free_zone() is only used the initialization
function which all belonging to the init section.
Move it also to the __init section.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191219222154.16100-2-daniel.lezcano@linaro.org
Daniel Lezcano [Thu, 19 Dec 2019 22:21:52 +0000 (23:21 +0100)]
thermal/drivers/of-thermal: Make of_thermal_destroy_zones static
The function of_thermal_destroy_zones() is only used internally by the
of_parse_thermal_zones() for rollbacking in case of error.
Make it static and tag it as an __init function.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191219222154.16100-1-daniel.lezcano@linaro.org
Daniel Lezcano [Thu, 19 Dec 2019 22:53:17 +0000 (23:53 +0100)]
thermal/drivers/cpu_cooling: Rename to cpufreq_cooling
As we introduced the idle injection cooling device called
cpuidle_cooling, let's be consistent and rename the cpu_cooling to
cpufreq_cooling as this one mitigates with OPPs changes.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/20191219225317.17158-3-daniel.lezcano@linaro.org
Daniel Lezcano [Thu, 19 Dec 2019 22:53:16 +0000 (23:53 +0100)]
thermal/drivers/cpu_cooling: Introduce the cpu idle cooling driver
The cpu idle cooling device offers a new method to cool down a CPU by
injecting idle cycles at runtime.
It has some similarities with the intel power clamp driver but it is
actually designed to be more generic and relying on the idle injection
powercap framework.
The idle injection duration is fixed while the running duration is
variable. That allows to have control on the device reactivity for the
user experience.
An idle state powering down the CPU or the cluster will allow to drop
the static leakage, thus restoring the heat capacity of the SoC. It
can be set with a trip point between the hot and the critical points,
giving the opportunity to prevent a hard reset of the system when the
cpufreq cooling fails to cool down the CPU.
With more sophisticated boards having a per core sensor, the idle
cooling device allows to cool down a single core without throttling
the compute capacity of several cpus belonging to the same clock line,
so it could be used in collaboration with the cpufreq cooling device.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20191219225317.17158-2-daniel.lezcano@linaro.org
Daniel Lezcano [Thu, 19 Dec 2019 22:53:15 +0000 (23:53 +0100)]
thermal/drivers/cpu_cooling: Add idle cooling device documentation
Provide some documentation for the idle injection cooling effect in
order to let people to understand the rational of the approach for the
idle injection CPU cooling device.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20191219225317.17158-1-daniel.lezcano@linaro.org
Stefan Schaeckeler [Thu, 12 Dec 2019 06:17:02 +0000 (22:17 -0800)]
thermal: rockchip: Enable hwmon
By default, of-based thermal drivers do not enable hwmon.
Explicitly enable hwmon for both, the soc and gpu temperature
sensor.
Signed-off-by: Stefan Schaeckeler <schaecsn@gmx.net>
Tested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191212061702.BFE2D6E85603@corona.crabdance.com
Zak Hays [Mon, 9 Dec 2019 18:57:23 +0000 (18:57 +0000)]
thermal: armada: Clear reset in armadaxp_init
The reset bit needs to be cleared in the init sequence otherwise it
holds the block in reset.
Signed-off-by: Zachary Hays <zhays@lexmark.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/BN8PR10MB33797EECAC557B5018A0A6628C580@BN8PR10MB3379.namprd10.prod.outlook.com
Zak Hays [Mon, 9 Dec 2019 18:55:51 +0000 (18:55 +0000)]
thermal: armada: Fix register offsets for AXP
As shown in its device tree, Armada XP has the control1 register at
0x184d0, not 0x182d0.
Signed-off-by: Zachary Hays <zhays@lexmark.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/BN8PR10MB337990B7688320D736760BB68C580@BN8PR10MB3379.namprd10.prod.outlook.com
Daniel Lezcano [Wed, 4 Dec 2019 15:39:27 +0000 (16:39 +0100)]
thermal/drivers/Kconfig: Convert the CPU cooling device to a choice
The next changes will add a new way to cool down a CPU by injecting
idle cycles. With the current configuration, a CPU cooling device is
the cpufreq cooling device. As we want to add a new CPU cooling
device, let's convert the CPU cooling to a choice giving a list of CPU
cooling devices. At this point, there is obviously only one CPU
cooling device.
There is no functional changes.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20191204153930.9128-1-daniel.lezcano@linaro.org
Andrey Smirnov [Tue, 10 Dec 2019 16:41:53 +0000 (08:41 -0800)]
thermal: qoriq: Add hwmon support
Expose thermal readings as a HWMON device, so that it could be
accessed using lm-sensors.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-13-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:52 +0000 (08:41 -0800)]
thermal_hwmon: Add devres wrapper for thermal_add_hwmon_sysfs()
Add devres wrapper for thermal_add_hwmon_sysfs() to simplify driver
code.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-12-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:51 +0000 (08:41 -0800)]
thermal: qoriq: Do not report invalid temperature reading
Before returning measured temperature data to upper layer we need to
make sure that the reading was marked as "valid" to avoid reporting
bogus data.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-11-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:50 +0000 (08:41 -0800)]
thermal: qoriq: Enable all sensors before registering them
Tmu_get_temp will get called as a part of sensor registration via
devm_thermal_zone_of_sensor_register(). To prevent it from retruning
bogus data we need to enable sensor monitoring before that. Looking at
the datasheet (i.MX8MQ RM) there doesn't seem to be any harm in
enabling them all, so, for the sake of simplicity, change the code to
do just that.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-10-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:49 +0000 (08:41 -0800)]
thermal: qoriq: Convert driver to use regmap API
Convert driver to use regmap API, drop custom LE/BE IO helpers and
simplify bit manipulation using regmap_update_bits(). This also allows
us to convert some register initialization to use loops and adds
convenient debug access to TMU registers via debugfs.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-9-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:48 +0000 (08:41 -0800)]
thermal: qoriq: Drop unnecessary drvdata cleanup
Driver data of underlying struct device will be set to NULL by Linux's
driver infrastructure. Clearing it here is unnecessary.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-8-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:47 +0000 (08:41 -0800)]
thermal: qoriq: Pass data to qoriq_tmu_calibration() directly
We can simplify error cleanup code if instead of passing a "struct
platform_device *" to qoriq_tmu_calibration() and deriving a bunch of
pointers from it, we pass those pointers directly. This way we won't
be force to call platform_set_drvdata() as early in qoriq_tmu_probe()
and need to have "platform_set_drvdata(pdev, NULL);" in error path.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-7-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:46 +0000 (08:41 -0800)]
thermal: qoriq: Pass data to qoriq_tmu_register_tmu_zone() directly
Pass all necessary data to qoriq_tmu_register_tmu_zone() directly
instead of passing a platform device and then deriving it. This is
done as a first step to simplify resource deallocation code.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-6-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:45 +0000 (08:41 -0800)]
thermal: qoriq: Embed per-sensor data into struct qoriq_tmu_data
Embed per-sensor data into struct qoriq_tmu_data so we can drop the
code allocating it. This also allows us to get rid of per-sensor back
reference to struct qoriq_tmu_data since now its address can be
calculated using container_of().
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-5-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:44 +0000 (08:41 -0800)]
thermal: qoriq: Add local struct qoriq_sensor pointer
Add local struct qoriq_sensor pointer in qoriq_tmu_register_tmu_zone()
for brevity.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-4-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:43 +0000 (08:41 -0800)]
thermal: qoriq: Don't store struct thermal_zone_device reference
Struct thermal_zone_device reference stored as sensor's private data
isn't really used anywhere in the code. Drop it.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-3-andrew.smirnov@gmail.com
Andrey Smirnov [Tue, 10 Dec 2019 16:41:42 +0000 (08:41 -0800)]
thermal: qoriq: Add local struct device pointer
Use a local "struct device *dev" for brevity. No functional change
intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-2-andrew.smirnov@gmail.com
Amit Kucheria [Wed, 20 Nov 2019 15:45:20 +0000 (21:15 +0530)]
thermal: zx2967: Appease the kernel-doc deity
Fix up the following warning when compiled with make W=1:
linux.git/drivers/thermal/zx2967_thermal.c:57: warning: Function
parameter or member 'dev' not described in 'zx2967_thermal_priv'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1b4f6fb91e2e713ad5135f0d40dcded65dee9d0e.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:19 +0000 (21:15 +0530)]
thermal: amlogic: Appease the kernel-doc deity
Fix up the following warning when compiled with make W=1:
linux.git/drivers/thermal/amlogic_thermal.c:78: warning: Function parameter or member 'A' not described in 'amlogic_thermal_soc_calib_data'
linux.git/drivers/thermal/amlogic_thermal.c:78: warning: Function parameter or member 'B' not described in 'amlogic_thermal_soc_calib_data'
linux.git/drivers/thermal/amlogic_thermal.c:78: warning: Function parameter or member 'm' not described in 'amlogic_thermal_soc_calib_data'
linux.git/drivers/thermal/amlogic_thermal.c:78: warning: Function parameter or member 'n' not described in 'amlogic_thermal_soc_calib_data'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/139c9191f1a18d528b5f94376facf40291d28244.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:18 +0000 (21:15 +0530)]
thermal: tegra: Appease the kernel-doc deity
Fix up the following warning when compiled with make W=1:
linux.git/drivers/thermal/tegra/soctherm.c:369: warning: Function parameter or member 'value' not described in 'ccroc_writel'
linux.git/drivers/thermal/tegra/soctherm.c:369: warning: Excess function parameter 'v' description in 'ccroc_writel'
linux.git/drivers/thermal/tegra/soctherm.c:447: warning: Function parameter or member 'dev' not described in 'enforce_temp_range'
linux.git/drivers/thermal/tegra/soctherm.c:772: warning: Function parameter or member 'sg' not described in 'tegra_soctherm_set_hwtrips'
linux.git/drivers/thermal/tegra/soctherm.c:772: warning: Function parameter or member 'tz' not described in 'tegra_soctherm_set_hwtrips'
linux.git/drivers/thermal/tegra/soctherm.c:944: warning: Function parameter or member 'ts' not described in 'soctherm_oc_intr_enable'
linux.git/drivers/thermal/tegra/soctherm.c:1167: warning: Function parameter or member 'data' not described in 'soctherm_oc_irq_disable'
linux.git/drivers/thermal/tegra/soctherm.c:1167: warning: Excess function parameter 'irq_data' description in 'soctherm_oc_irq_disable'
linux.git/drivers/thermal/tegra/soctherm.c:1224: warning: Function parameter or member 'ctrlr' not described in 'soctherm_irq_domain_xlate_twocell'
linux.git/drivers/thermal/tegra/soctherm.c:1686: warning: Function parameter or member 'pdev' not described in 'soctherm_init_hw_throt_cdev'
linux.git/drivers/thermal/tegra/soctherm.c:1764: warning: Function parameter or member 'ts' not described in 'throttlectl_cpu_level_cfg'
linux.git/drivers/thermal/tegra/soctherm.c:1812: warning: Function parameter or member 'ts' not described in 'throttlectl_cpu_level_select'
linux.git/drivers/thermal/tegra/soctherm.c:1855: warning: Function parameter or member 'ts' not described in 'throttlectl_cpu_mn'
linux.git/drivers/thermal/tegra/soctherm.c:1886: warning: Function parameter or member 'ts' not described in 'throttlectl_gpu_level_select'
linux.git/drivers/thermal/tegra/soctherm.c:1928: warning: Function parameter or member 'ts' not described in 'soctherm_throttle_program'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/db764f71253bb2ad569b0aeab4c91207a39317ce.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:17 +0000 (21:15 +0530)]
thermal: samsung: Appease the kernel-doc deity
Fix up the following warning when compiled with make W=1:
linux.git/drivers/thermal/samsung/exynos_tmu.c:141: warning: bad
line: driver
linux.git/drivers/thermal/samsung/exynos_tmu.c:203: warning: Function
parameter or member 'tzd' not described in 'exynos_tmu_data'
linux.git/drivers/thermal/samsung/exynos_tmu.c:203: warning: Function
parameter or member 'tmu_set_trip_temp' not described in
'exynos_tmu_data'
linux.git/drivers/thermal/samsung/exynos_tmu.c:203: warning: Function
parameter or member 'tmu_set_trip_hyst' not described in
'exynos_tmu_data'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1ded1697c6e5eff11b034b3302b9c79e88fa9c42.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:16 +0000 (21:15 +0530)]
thermal: rockchip: Appease the kernel-doc deity
Replace a comment starting with /** by simply /* to avoid having it
interpreted as a kernel-doc comment. Describe missing function
parameters where needed.
Fixes up the following warnings when compiled with make W=1:
linux.git/drivers/thermal/rockchip_thermal.c:27: warning: cannot
understand function prototype: 'enum tshut_mode '
linux.git/drivers/thermal/rockchip_thermal.c:37: warning: cannot
understand function prototype: 'enum tshut_polarity '
linux.git/drivers/thermal/rockchip_thermal.c:46: warning: cannot
understand function prototype: 'enum sensor_id '
linux.git/drivers/thermal/rockchip_thermal.c:56: warning: cannot
understand function prototype: 'enum adc_sort_mode '
linux.git/drivers/thermal/rockchip_thermal.c:123: warning: Function
parameter or member 'chn_id' not described in 'rockchip_tsadc_chip'
linux.git/drivers/thermal/rockchip_thermal.c:123: warning: Function
parameter or member 'control' not described in 'rockchip_tsadc_chip'
linux.git/drivers/thermal/rockchip_thermal.c:167: warning: Function
parameter or member 'sensors' not described in 'rockchip_thermal_data'
linux.git/drivers/thermal/rockchip_thermal.c:608: warning: Function
parameter or member 'grf' not described in 'rk_tsadcv2_initialize'
linux.git/drivers/thermal/rockchip_thermal.c:608: warning: Function
parameter or member 'regs' not described in 'rk_tsadcv2_initialize'
linux.git/drivers/thermal/rockchip_thermal.c:608: warning: Function
parameter or member 'tshut_polarity' not described in
'rk_tsadcv2_initialize'
linux.git/drivers/thermal/rockchip_thermal.c:644: warning: Function
parameter or member 'grf' not described in 'rk_tsadcv3_initialize'
linux.git/drivers/thermal/rockchip_thermal.c:644: warning: Function
parameter or member 'regs' not described in 'rk_tsadcv3_initialize'
linux.git/drivers/thermal/rockchip_thermal.c:644: warning: Function
parameter or member 'tshut_polarity' not described in
'rk_tsadcv3_initialize'
linux.git/drivers/thermal/rockchip_thermal.c:732: warning: Function
parameter or member 'regs' not described in 'rk_tsadcv3_control'
linux.git/drivers/thermal/rockchip_thermal.c:732: warning: Function
parameter or member 'enable' not described in 'rk_tsadcv3_control'
linux.git/drivers/thermal/rockchip_thermal.c:1211: warning: Function
parameter or member 'reset' not described in
'rockchip_thermal_reset_controller'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/c3cbdb0619fec602668ba7ae703ba49d67e30b33.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:15 +0000 (21:15 +0530)]
thermal: mediatek: Appease the kernel-doc deity
Replace a comment starting with /** by simply /* to avoid having it
interpreted as a kernel-doc comment. Describe missing function
parameters where needed.
Fixes up the following warnings when compiled with make W=1:
linux.git/drivers/thermal/mtk_thermal.c:374: warning: cannot understand
function prototype: 'const struct mtk_thermal_data mt8173_thermal_data =
'
linux.git/drivers/thermal/mtk_thermal.c:413: warning: cannot understand
function prototype: 'const struct mtk_thermal_data mt2701_thermal_data =
'
linux.git/drivers/thermal/mtk_thermal.c:443: warning: cannot understand
function prototype: 'const struct mtk_thermal_data mt2712_thermal_data =
'
linux.git/drivers/thermal/mtk_thermal.c:499: warning: cannot understand
function prototype: 'const struct mtk_thermal_data mt8183_thermal_data =
'
linux.git/drivers/thermal/mtk_thermal.c:529: warning: Function parameter
or member 'sensno' not described in 'raw_to_mcelsius'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/ba10b886705879fd1b7d529fec50503d6696df20.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:14 +0000 (21:15 +0530)]
thermal: max77620: Appease the kernel-doc deity
Fix up the following warning when compiled with make W=1:
linux.git/drivers/thermal/max77620_thermal.c:48: warning: Function
parameter or member 'temp' not described in 'max77620_thermal_read_temp'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/c943d51e7913a4b73cda447547b8ee77c857f7ba.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:13 +0000 (21:15 +0530)]
thermal: devfreq_cooling: Appease the kernel-doc deity
Fix up the following warnings with make W=1:
linux.git/drivers/thermal/devfreq_cooling.c:68: warning: Function
parameter or member 'capped_state' not described in
'devfreq_cooling_device'
linux.git/drivers/thermal/devfreq_cooling.c:593: warning: Function
parameter or member 'cdev' not described in 'devfreq_cooling_unregister'
linux.git/drivers/thermal/devfreq_cooling.c:593: warning: Excess
function parameter 'dfc' description in 'devfreq_cooling_unregister'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/7059d82472fe12139fc7a3379c5b9716a23cce5c.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:12 +0000 (21:15 +0530)]
thermal: step_wise: Appease the kernel-doc deity
Replace - with : to appease the kernel-doc gods and fix warnings such as
the following when compiled with make W=1:
linux-amit.git/drivers/thermal/step_wise.c:187: warning: Function
parameter or member 'tz' not described in 'step_wise_throttle'
linux-amit.git/drivers/thermal/step_wise.c:187: warning: Function
parameter or member 'trip' not described in 'step_wise_throttle'
linux.git/drivers/thermal/fair_share.c:79: warning: Function parameter
or member 'tz' not described in 'fair_share_throttle'
linux.git/drivers/thermal/fair_share.c:79: warning: Function parameter
or member 'trip' not described in 'fair_share_throttle'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/5d48ac6f85667a53902092ad5bbfef8cc89a7162.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:11 +0000 (21:15 +0530)]
thermal: cpu_cooling: Appease the kernel-doc deity
Describe the function parameter to fix the following warning with make
W=1:
linux.git/drivers/thermal/cpu_cooling.c:92: warning: Function parameter
or member 'qos_req' not described in 'cpufreq_cooling_device'
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/ddb09e9728533c274edae7ff3da515b3cf7ef231.1574242756.git.amit.kucheria@linaro.org
Amit Kucheria [Wed, 20 Nov 2019 15:45:10 +0000 (21:15 +0530)]
thermal: of-thermal: Appease the kernel-doc deity
Replace a comment starting with /** by simply /* to avoid having
it interpreted as a kernel-doc comment.
Fixes the following warning when compile with make W=1:
linux.git/drivers/thermal/of-thermal.c:761: warning: cannot understand function prototype: 'const char *trip_types[] = '
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/dc742789bf4b3c8207b01c7946f2b401350536a7.1574242756.git.amit.kucheria@linaro.org
Linus Walleij [Tue, 19 Nov 2019 07:46:50 +0000 (08:46 +0100)]
thermal: db8500: Depromote debug print
We are not interested in getting this debug print on our
console all the time.
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Stephan Gerhold <stephan@gerhold.net>
Fixes:
6c375eccded4 ("thermal: db8500: Rewrite to be a pure OF sensor")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191119074650.2664-1-linus.walleij@linaro.org
Linus Torvalds [Mon, 27 Jan 2020 00:23:03 +0000 (16:23 -0800)]
Linux 5.5
Linus Torvalds [Sun, 26 Jan 2020 20:23:04 +0000 (12:23 -0800)]
Merge tag 'io_uring-5.5-2020-01-26' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Fix for two regressions in this cycle, both reported by the postgresql
use case.
One removes the added restriction on who can submit IO, making it
possible for rings shared across forks to do so. The other fixes an
issue for the same kind of use case, where one exiting process would
cancel all IO"
* tag 'io_uring-5.5-2020-01-26' of git://git.kernel.dk/linux-block:
io_uring: don't cancel all work on process exit
Revert "io_uring: only allow submit from owning task"
Linus Torvalds [Sun, 26 Jan 2020 20:12:36 +0000 (12:12 -0800)]
Merge tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"Unfortunately this weekend we had a few last minute reports, one was
for block.
The partition disable for zoned devices was overly restrictive, it can
work (and be supported) just fine for host-aware variants.
Here's a fix ensuring that's the case so we don't break existing users
of that"
* tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block:
block: allow partitions on host aware zone devices
Linus Torvalds [Sun, 26 Jan 2020 18:39:09 +0000 (10:39 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two last minute fixes, both in drivers.
The fnic one is a highly unlikely condition, but the RDMA one is a
recently introduced regression that causes a kernel warning to trigger
in every RDMA logon, which would be unsightly if it got into the final
release"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: RDMA/isert: Fix a recently introduced regression related to logout
scsi: fnic: do not queue commands during fwreset
Linus Torvalds [Sun, 26 Jan 2020 18:33:48 +0000 (10:33 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/viro/vfs
Pull vfs fix from Al Viro:
"Fix a use-after-free in do_last() handling of sysctl_protected_...
checks.
The use-after-free normally doesn't happen there, but race with
rename() and it becomes possible"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do_last(): fetch directory ->i_mode and ->i_uid before it's too late
Jens Axboe [Sun, 26 Jan 2020 17:17:12 +0000 (10:17 -0700)]
io_uring: don't cancel all work on process exit
If we're sharing the ring across forks, then one process exiting means
that we cancel ALL work and prevent future work. This is overly
restrictive. As long as we cancel the work associated with the files
from the current task, it's safe to let others persist. Normal fd close
on exit will still wait (and cancel) pending work.
Fixes:
fcb323cc53e2 ("io_uring: io_uring: add support for async work inheriting files")
Reported-by: Andres Freund <andres@anarazel.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Christoph Hellwig [Sun, 26 Jan 2020 13:05:43 +0000 (14:05 +0100)]
block: allow partitions on host aware zone devices
Host-aware SMR drives can be used with the commands to explicitly manage
zone state, but they can also be used as normal disks. In the former
case it makes perfect sense to allow partitions on them, in the latter
it does not, just like for host managed devices. Add a check to
add_partition to allow partitions on host aware devices, but give
up any zone management capabilities in that case, which also catches
the previously missed case of adding a partition vs just scanning it.
Because sd can rescan the attribute at runtime it needs to check if
a disk has partitions, for which a new helper is added to genhd.h.
Fixes:
5eac3eb30c9a ("block: Remove partition support for zoned block devices")
Reported-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Sun, 26 Jan 2020 16:53:12 +0000 (09:53 -0700)]
Revert "io_uring: only allow submit from owning task"
This ends up being too restrictive for tasks that willingly fork and
share the ring between forks. Andres reports that this breaks his
postgresql work. Since we're close to 5.5 release, revert this change
for now.
Cc: stable@vger.kernel.org
Fixes:
44d282796f81 ("io_uring: only allow submit from owning task")
Reported-by: Andres Freund <andres@anarazel.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
David Howells [Sun, 26 Jan 2020 01:02:53 +0000 (01:02 +0000)]
afs: Fix characters allowed into cell names
The afs filesystem needs to prohibit certain characters from cell names,
such as '/', as these are used to form filenames in procfs, leading to
the following warning being generated:
WARNING: CPU: 0 PID: 3489 at fs/proc/generic.c:178
Fix afs_alloc_cell() to disallow nonprintable characters, '/', '@' and
names that begin with a dot.
Remove the check for "@cell" as that is then redundant.
This can be tested by running:
echo add foo/.bar 1.2.3.4 >/proc/fs/afs/cells
Note that we will also need to deal with:
- Names ending in ".invalid" shouldn't be passed to the DNS.
- Names that contain non-valid domainname chars shouldn't be passed to
the DNS.
- DNS replies that say "your-dns-needs-immediate-attention.<gTLD>" and
replies containing A records that say 127.0.53.53 should be
considered invalid.
[https://www.icann.org/en/system/files/files/name-collision-mitigation-01aug14-en.pdf]
but these need to be dealt with by the kafs-client DNS program rather
than the kernel.
Reported-by: syzbot+b904ba7c947a37b4b291@syzkaller.appspotmail.com
Cc: stable@kernel.org
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Sun, 26 Jan 2020 14:29:34 +0000 (09:29 -0500)]
do_last(): fetch directory ->i_mode and ->i_uid before it's too late
may_create_in_sticky() call is done when we already have dropped the
reference to dir.
Fixes:
30aba6656f61e (namei: allow restricted O_CREAT of FIFOs and regular files)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sat, 25 Jan 2020 22:32:51 +0000 (14:32 -0800)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- fix ftrace relocation type filtering
- relax arch timer version check
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8955/1: virt: Relax arch timer version check during early boot
ARM: 8950/1: ftrace/recordmcount: filter relocation types
Linus Torvalds [Sat, 25 Jan 2020 22:19:32 +0000 (14:19 -0800)]
Merge git://git./linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Off by one in mt76 airtime calculation, from Dan Carpenter.
2) Fix TLV fragment allocation loop condition in iwlwifi, from Luca
Coelho.
3) Don't confirm neigh entries when doing ipsec pmtu updates, from Xu
Wang.
4) More checks to make sure we only send TSO packets to lan78xx chips
that they can actually handle. From James Hughes.
5) Fix ip_tunnel namespace move, from William Dauchy.
6) Fix unintended packet reordering due to cooperation between
listification done by GRO and non-GRO paths. From Maxim
Mikityanskiy.
7) Add Jakub Kicincki formally as networking co-maintainer.
8) Info leak in airo ioctls, from Michael Ellerman.
9) IFLA_MTU attribute needs validation during rtnl_create_link(), from
Eric Dumazet.
10) Use after free during reload in mlxsw, from Ido Schimmel.
11) Dangling pointers are possible in tp->highest_sack, fix from Eric
Dumazet.
12) Missing *pos++ in various networking seq_next handlers, from Vasily
Averin.
13) CHELSIO_GET_MEM operation neds CAP_NET_ADMIN check, from Michael
Ellerman.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (109 commits)
firestream: fix memory leaks
net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
net: bcmgenet: Use netif_tx_napi_add() for TX NAPI
tipc: change maintainer email address
net: stmmac: platform: fix probe for ACPI devices
net/mlx5e: kTLS, Do not send decrypted-marked SKBs via non-accel path
net/mlx5e: kTLS, Remove redundant posts in TX resync flow
net/mlx5e: kTLS, Fix corner-case checks in TX resync flow
net/mlx5e: Clear VF config when switching modes
net/mlx5: DR, use non preemptible call to get the current cpu number
net/mlx5: E-Switch, Prevent ingress rate configuration of uplink rep
net/mlx5: DR, Enable counter on non-fwd-dest objects
net/mlx5: Update the list of the PCI supported devices
net/mlx5: Fix lowest FDB pool size
net: Fix skb->csum update in inet_proto_csum_replace16().
netfilter: nf_tables: autoload modules from the abort path
netfilter: nf_tables: add __nft_chain_type_get()
netfilter: nf_tables_offload: fix check the chain offload flag
netfilter: conntrack: sctp: use distinct states for new SCTP connections
ipv6_route_seq_next should increase position index
...
Linus Torvalds [Sat, 25 Jan 2020 22:08:43 +0000 (14:08 -0800)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A couple of fixes have come in that would be good to include in this
release:
- A fix for amount of memory on Beaglebone Black. Surfaced now since
GRUB2 doesn't update memory size in the booted kernel.
- A fix to make SPI interfaces work on am43x-epos-evm.
- Small Kconfig fix for OPTEE (adds a depend on MMU) to avoid build
failures"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: dts: am43x-epos-evm: set data pin directions for spi0 and spi1
tee: optee: Fix compilation issue with nommu
ARM: dts: am335x-boneblack-common: fix memory size
Wenwen Wang [Sat, 25 Jan 2020 14:33:29 +0000 (14:33 +0000)]
firestream: fix memory leaks
In fs_open(), 'vcc' is allocated through kmalloc() and assigned to
'atm_vcc->dev_data.' In the following execution, if an error occurs, e.g.,
there is no more free channel, an error code EBUSY or ENOMEM will be
returned. However, 'vcc' is not deallocated, leading to memory leaks. Note
that, in normal cases where fs_open() returns 0, 'vcc' will be deallocated
in fs_close(). But, if fs_open() fails, there is no guarantee that
fs_close() will be invoked.
To fix this issue, deallocate 'vcc' before the error code is returned.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 25 Jan 2020 20:40:39 +0000 (21:40 +0100)]
Merge git://git./pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Missing netlink attribute sanity check for NFTA_OSF_DREG,
from Florian Westphal.
2) Use bitmap infrastructure in ipset to fix KASAN slab-out-of-bounds
reads, from Jozsef Kadlecsik.
3) Missing initial CLOSED state in new sctp connection through
ctnetlink events, from Jiri Wiesner.
4) Missing check for NFT_CHAIN_HW_OFFLOAD in nf_tables offload
indirect block infrastructure, from wenxu.
5) Add __nft_chain_type_get() to sanity check family and chain type.
6) Autoload modules from the nf_tables abort path to fix races
reported by syzbot.
7) Remove unnecessary skb->csum update on inet_proto_csum_replace16(),
from Praveen Chaudhary.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 25 Jan 2020 18:55:24 +0000 (10:55 -0800)]
Merge tag 'for-5.5-rc8-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"Here's a last minute fix for a regression introduced in this
development cycle.
There's a small chance of a silent corruption when device replace and
NOCOW data writes happen at the same time in one block group. Metadata
or COW data writes are unaffected.
The extra fixup patch is there to silence an unnecessary warning"
* tag 'for-5.5-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: dev-replace: remove warning for unknown return codes when finished
btrfs: scrub: Require mandatory block group RO for dev-replace
Linus Torvalds [Sat, 25 Jan 2020 18:46:07 +0000 (10:46 -0800)]
Merge tag 'pinctrl-v5.5-5' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pin control fix from Linus Walleij:
"A single fix for the Intel Sunrisepoint pin controller that makes the
interrupts work properly on it"
* tag 'pinctrl-v5.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunrisepoint: Add missing Interrupt Status register offset
David S. Miller [Sat, 25 Jan 2020 12:46:00 +0000 (13:46 +0100)]
Merge tag 'mlx5-fixes-2020-01-24' of git://git./linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2020-01-24
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
Merge conflict: once merge with net-next, a contextual conflict will
appear in drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
since the code moved in net-next.
To resolve, just delete ALL of the conflicting hunk from net.
So sorry for the small mess ..
For -stable v5.4:
('net/mlx5: Update the list of the PCI supported devices')
('net/mlx5: Fix lowest FDB pool size')
('net/mlx5e: kTLS, Fix corner-case checks in TX resync flow')
('net/mlx5e: kTLS, Do not send decrypted-marked SKBs via non-accel path')
('net/mlx5: Eswitch, Prevent ingress rate configuration of uplink rep')
('net/mlx5e: kTLS, Remove redundant posts in TX resync flow')
('net/mlx5: DR, Enable counter on non-fwd-dest objects')
('net/mlx5: DR, use non preemptible call to get the current cpu number')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David Sterba [Sat, 25 Jan 2020 11:35:38 +0000 (12:35 +0100)]
btrfs: dev-replace: remove warning for unknown return codes when finished
The fstests btrfs/011 triggered a warning at the end of device replace,
[ 1891.998975] BTRFS warning (device vdd): failed setting block group ro: -28
[ 1892.038338] BTRFS error (device vdd): btrfs_scrub_dev(/dev/vdd, 1, /dev/vdb) failed -28
[ 1892.059993] ------------[ cut here ]------------
[ 1892.063032] WARNING: CPU: 2 PID: 2244 at fs/btrfs/dev-replace.c:506 btrfs_dev_replace_start.cold+0xf9/0x140 [btrfs]
[ 1892.074346] CPU: 2 PID: 2244 Comm: btrfs Not tainted 5.5.0-rc7-default+ #942
[ 1892.079956] RIP: 0010:btrfs_dev_replace_start.cold+0xf9/0x140 [btrfs]
[ 1892.096576] RSP: 0018:
ffffbb58c7b3fd10 EFLAGS:
00010286
[ 1892.098311] RAX:
00000000ffffffe4 RBX:
0000000000000001 RCX:
8888888888888889
[ 1892.100342] RDX:
0000000000000001 RSI:
ffff9e889645f5d8 RDI:
ffffffff92821080
[ 1892.102291] RBP:
ffff9e889645c000 R08:
000001b8878fe1f6 R09:
0000000000000000
[ 1892.104239] R10:
ffffbb58c7b3fd08 R11:
0000000000000000 R12:
ffff9e88a0017000
[ 1892.106434] R13:
ffff9e889645f608 R14:
ffff9e88794e1000 R15:
ffff9e88a07b5200
[ 1892.108642] FS:
00007fcaed3f18c0(0000) GS:
ffff9e88bda00000(0000) knlGS:
0000000000000000
[ 1892.111558] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 1892.113492] CR2:
00007f52509ff420 CR3:
00000000603dd002 CR4:
0000000000160ee0
[ 1892.115814] Call Trace:
[ 1892.116896] btrfs_dev_replace_by_ioctl+0x35/0x60 [btrfs]
[ 1892.118962] btrfs_ioctl+0x1d62/0x2550 [btrfs]
caused by the previous patch ("btrfs: scrub: Require mandatory block
group RO for dev-replace"). Hitting ENOSPC is possible and could happen
when the block group is set read-only, preventing NOCOW writes to the
area that's being accessed by dev-replace.
This has happend with scratch devices of size 12G but not with 5G and
20G, so this is depends on timing and other activity on the filesystem.
The whole replace operation is restartable, the space state should be
examined by the user in any case.
The error code is propagated back to the ioctl caller so the kernel
warning is causing false alerts.
Signed-off-by: David Sterba <dsterba@suse.com>
Michael Ellerman [Fri, 24 Jan 2020 09:41:44 +0000 (20:41 +1100)]
net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
The cxgb3 driver for "Chelsio T3-based gigabit and 10Gb Ethernet
adapters" implements a custom ioctl as SIOCCHIOCTL/SIOCDEVPRIVATE in
cxgb_extension_ioctl().
One of the subcommands of the ioctl is CHELSIO_GET_MEM, which appears
to read memory directly out of the adapter and return it to userspace.
It's not entirely clear what the contents of the adapter memory
contains, but the assumption is that it shouldn't be accessible to all
users.
So add a CAP_NET_ADMIN check to the CHELSIO_GET_MEM case. Put it after
the is_offload() check, which matches two of the other subcommands in
the same function which also check for is_offload() and CAP_NET_ADMIN.
Found by Ilja by code inspection, not tested as I don't have the
required hardware.
Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Thu, 23 Jan 2020 17:49:34 +0000 (09:49 -0800)]
net: bcmgenet: Use netif_tx_napi_add() for TX NAPI
Before commit
7587935cfa11 ("net: bcmgenet: move NAPI initialization to
ring initialization") moved the code, this used to be
netif_tx_napi_add(), but we lost that small semantic change in the
process, restore that.
Fixes:
7587935cfa11 ("net: bcmgenet: move NAPI initialization to ring initialization")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Maloy [Thu, 23 Jan 2020 15:09:39 +0000 (10:09 -0500)]
tipc: change maintainer email address
Reflecting new realities.
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ajay Gupta [Thu, 23 Jan 2020 01:16:35 +0000 (17:16 -0800)]
net: stmmac: platform: fix probe for ACPI devices
Use generic device API to get phy mode to fix probe failure
with ACPI based devices.
Signed-off-by: Ajay Gupta <ajayg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 25 Jan 2020 03:27:42 +0000 (19:27 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- add sanity checks to USB endpoints in various dirvers
- max77650-onkey was missing an OF table which was preventing module
autoloading
- a revert and a different fix for F54 handling in Synaptics dirver
- a fixup for handling register in pm8xxx vibrator driver
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: pm8xxx-vib - fix handling of separate enable register
Input: keyspan-remote - fix control-message timeouts
Input: max77650-onkey - add of_match table
Input: rmi_f54 - read from FIFO in 32 byte blocks
Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers"
Input: sur40 - fix interface sanity checks
Input: gtco - drop redundant variable reinit
Input: gtco - fix extra-descriptor debug message
Input: gtco - fix endpoint sanity check
Input: aiptek - use descriptors of current altsetting
Input: aiptek - fix endpoint sanity check
Input: pegasus_notetaker - fix endpoint sanity check
Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
Input: evdev - convert kzalloc()/vzalloc() to kvzalloc()
Olof Johansson [Fri, 24 Jan 2020 20:05:32 +0000 (12:05 -0800)]
Merge tag 'omap-for-fixes-whenever-signed' of git://git./linux/kernel/git/tmlind/linux-omap into arm/fixes
Few minor fixes for omaps
Looks like we have wrong default memory size for beaglebone black,
it has at least 512 MB of RAM and not 256 MB. This causes an issue
when booted with GRUB2 that does not seem to pass memory info to
the kernel.
And for am43x-epos-evm the SPI pin directions need to be configured
for SPI to work.
* tag 'omap-for-fixes-whenever-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am43x-epos-evm: set data pin directions for spi0 and spi1
ARM: dts: am335x-boneblack-common: fix memory size
Link: https://lore.kernel.org/r/pull-1579895109-287828@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Fri, 24 Jan 2020 20:05:07 +0000 (12:05 -0800)]
Merge tag 'tee-optee-fix2-for-5.5' of https://git.linaro.org:/people/jens.wiklander/linux-tee into arm/fixes
Fix OP-TEE compile error with nommu
* tag 'tee-optee-fix2-for-5.5' of https://git.linaro.org:/people/jens.wiklander/linux-tee:
tee: optee: Fix compilation issue with nommu
Link: https://lore.kernel.org/r/20200123101310.GA10320@jax
Signed-off-by: Olof Johansson <olof@lixom.net>
Tariq Toukan [Mon, 20 Jan 2020 11:42:00 +0000 (13:42 +0200)]
net/mlx5e: kTLS, Do not send decrypted-marked SKBs via non-accel path
When TCP out-of-order is identified (unexpected tcp seq mismatch), driver
analyzes the packet and decides what handling should it get:
1. go to accelerated path (to be encrypted in HW),
2. go to regular xmit path (send w/o encryption),
3. drop.
Packets marked with skb->decrypted by the TLS stack in the TX flow skips
SW encryption, and rely on the HW offload.
Verify that such packets are never sent un-encrypted on the wire.
Add a WARN to catch such bugs, and prefer dropping the packet in these cases.
Fixes:
46a3ea98074e ("net/mlx5e: kTLS, Enhance TX resync flow")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Tariq Toukan [Mon, 13 Jan 2020 12:46:09 +0000 (14:46 +0200)]
net/mlx5e: kTLS, Remove redundant posts in TX resync flow
The call to tx_post_resync_params() is done earlier in the flow,
the post of the control WQEs is unnecessarily repeated. Remove it.
Fixes:
700ec4974240 ("net/mlx5e: kTLS, Fix missing SQ edge fill")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Tariq Toukan [Sun, 12 Jan 2020 14:22:14 +0000 (16:22 +0200)]
net/mlx5e: kTLS, Fix corner-case checks in TX resync flow
There are the following cases:
1. Packet ends before start marker: bypass offload.
2. Packet starts before start marker and ends after it: drop,
not supported, breaks contract with kernel.
3. packet ends before tls record info starts: drop,
this packet was already acknowledged and its record info
was released.
Add the above as comment in code.
Mind possible wraparounds of the TCP seq, replace the simple comparison
with a call to the TCP before() method.
In addition, remove logic that handles negative sync_len values,
as it became impossible.
Fixes:
d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Fixes:
46a3ea98074e ("net/mlx5e: kTLS, Enhance TX resync flow")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Dmytro Linkin [Mon, 13 Jan 2020 11:46:13 +0000 (13:46 +0200)]
net/mlx5e: Clear VF config when switching modes
Currently VF in LEGACY mode are not able to go up. Also in OFFLOADS
mode, when switching to it first time, VF can go up independently to
his representor, which is not expected.
Perform clearing of VF config when switching modes and set link state
to AUTO as default value. Also, when switching to OFFLOADS mode set
link state to DOWN, which allow VF link state to be controlled by its
REP.
Fixes:
1ab2068a4c66 ("net/mlx5: Implement vports admin state backup/restore")
Fixes:
556b9d16d3f5 ("net/mlx5: Clear VF's configuration on disabling SRIOV")
Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Erez Shitrit [Sun, 12 Jan 2020 06:57:59 +0000 (08:57 +0200)]
net/mlx5: DR, use non preemptible call to get the current cpu number
Use raw_smp_processor_id instead of smp_processor_id() otherwise we will
get the following trace in debug-kernel:
BUG: using smp_processor_id() in preemptible [
00000000] code: devlink
caller is dr_create_cq.constprop.2+0x31d/0x970 [mlx5_core]
Call Trace:
dump_stack+0x9a/0xf0
debug_smp_processor_id+0x1f3/0x200
dr_create_cq.constprop.2+0x31d/0x970
genl_family_rcv_msg+0x5fd/0x1170
genl_rcv_msg+0xb8/0x160
netlink_rcv_skb+0x11e/0x340
Fixes:
297cccebdc5a ("net/mlx5: DR, Expose an internal API to issue RDMA operations")
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Cohen [Sun, 12 Jan 2020 11:43:37 +0000 (13:43 +0200)]
net/mlx5: E-Switch, Prevent ingress rate configuration of uplink rep
Since the implementation relies on limiting the VF transmit rate to
simulate ingress rate limiting, and since either uplink representor or
ecpf are not associated with a VF, we limit the rate limit configuration
for those ports.
Fixes:
fcb64c0f5640 ("net/mlx5: E-Switch, add ingress rate support")
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Erez Shitrit [Wed, 8 Jan 2020 12:17:32 +0000 (14:17 +0200)]
net/mlx5: DR, Enable counter on non-fwd-dest objects
The current code handles only counters that attached to dest, we still
have the cases where we have counter on non-dest, like over drop etc.
Fixes:
6a48faeeca10 ("net/mlx5: Add direct rule fs_cmd implementation")
Signed-off-by: Hamdan Igbaria <hamdani@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Meir Lichtinger [Thu, 12 Dec 2019 14:09:33 +0000 (16:09 +0200)]
net/mlx5: Update the list of the PCI supported devices
Add the upcoming ConnectX-7 device ID.
Fixes:
85327a9c4150 ("net/mlx5: Update the list of the PCI supported devices")
Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Paul Blakey [Tue, 31 Dec 2019 15:04:15 +0000 (17:04 +0200)]
net/mlx5: Fix lowest FDB pool size
The pool sizes represent the pool sizes in the fw. when we request
a pool size from fw, it will return the next possible group.
We track how many pools the fw has left and start requesting groups
from the big to the small.
When we start request 4k group, which doesn't exists in fw, fw
wants to allocate the next possible size, 64k, but will fail since
its exhausted. The correct smallest pool size in fw is 128 and not 4k.
Fixes:
e52c28024008 ("net/mlx5: E-Switch, Add chains and priorities")
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Praveen Chaudhary [Thu, 23 Jan 2020 20:33:28 +0000 (12:33 -0800)]
net: Fix skb->csum update in inet_proto_csum_replace16().
skb->csum is updated incorrectly, when manipulation for
NF_NAT_MANIP_SRC\DST is done on IPV6 packet.
Fix:
There is no need to update skb->csum in inet_proto_csum_replace16(),
because update in two fields a.) IPv6 src/dst address and b.) L4 header
checksum cancels each other for skb->csum calculation. Whereas
inet_proto_csum_replace4 function needs to update skb->csum, because
update in 3 fields a.) IPv4 src/dst address, b.) IPv4 Header checksum
and c.) L4 header checksum results in same diff as L4 Header checksum
for skb->csum calculation.
[ pablo@netfilter.org: a few comestic documentation edits ]
Signed-off-by: Praveen Chaudhary <pchaudhary@linkedin.com>
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
Signed-off-by: Andy Stracner <astracner@linkedin.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pablo Neira Ayuso [Tue, 21 Jan 2020 15:48:03 +0000 (16:48 +0100)]
netfilter: nf_tables: autoload modules from the abort path
This patch introduces a list of pending module requests. This new module
list is composed of nft_module_request objects that contain the module
name and one status field that tells if the module has been already
loaded (the 'done' field).
In the first pass, from the preparation phase, the netlink command finds
that a module is missing on this list. Then, a module request is
allocated and added to this list and nft_request_module() returns
-EAGAIN. This triggers the abort path with the autoload parameter set on
from nfnetlink, request_module() is called and the module request enters
the 'done' state. Since the mutex is released when loading modules from
the abort phase, the module list is zapped so this is iteration occurs
over a local list. Therefore, the request_module() calls happen when
object lists are in consistent state (after fulling aborting the
transaction) and the commit list is empty.
On the second pass, the netlink command will find that it already tried
to load the module, so it does not request it again and
nft_request_module() returns 0. Then, there is a look up to find the
object that the command was missing. If the module was successfully
loaded, the command proceeds normally since it finds the missing object
in place, otherwise -ENOENT is reported to userspace.
This patch also updates nfnetlink to include the reason to enter the
abort phase, which is required for this new autoload module rationale.
Fixes:
ec7470b834fe ("netfilter: nf_tables: store transaction list locally while requesting module")
Reported-by: syzbot+29125d208b3dae9a7019@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pablo Neira Ayuso [Tue, 21 Jan 2020 15:07:00 +0000 (16:07 +0100)]
netfilter: nf_tables: add __nft_chain_type_get()
This new helper function validates that unknown family and chain type
coming from userspace do not trigger an out-of-bound array access. Bail
out in case __nft_chain_type_get() returns NULL from
nft_chain_parse_hook().
Fixes:
9370761c56b6 ("netfilter: nf_tables: convert built-in tables/chains to chain types")
Reported-by: syzbot+156a04714799b1d480bc@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
wenxu [Sun, 19 Jan 2020 05:18:30 +0000 (13:18 +0800)]
netfilter: nf_tables_offload: fix check the chain offload flag
In the nft_indr_block_cb the chain should check the flag with
NFT_CHAIN_HW_OFFLOAD.
Fixes:
9a32669fecfb ("netfilter: nf_tables_offload: support indr block call")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linus Torvalds [Fri, 24 Jan 2020 17:56:59 +0000 (09:56 -0800)]
Merge tag 'iommu-fixes-v5.5-rc7' of git://git./linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
"Two fixes:
- Fix NULL-ptr dereference bug in Intel IOMMU driver
- Properly save and restore AMD IOMMU performance counter registers
when testing if they are writable"
* tag 'iommu-fixes-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix IOMMU perf counter clobbering during init
iommu/vt-d: Call __dmar_remove_one_dev_info with valid pointer
Linus Torvalds [Fri, 24 Jan 2020 17:49:20 +0000 (09:49 -0800)]
Merge tag 'powerpc-5.5-6' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some more powerpc fixes for 5.5:
- Fix our hash MMU code to avoid having overlapping ids between user
and kernel, which isn't as bad as it sounds but led to crashes on
some machines.
- A fix for the Power9 XIVE interrupt code, which could return the
wrong interrupt state in obscure error conditions.
- A minor Kconfig fix for the recently added CONFIG_PPC_UV code.
Thanks to Aneesh Kumar K.V, Bharata B Rao, Cédric Le Goater, Frederic
Barrat"
* tag 'powerpc-5.5-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm/hash: Fix sharing context ids between kernel & userspace
powerpc/xive: Discard ESB load value when interrupt is invalid
powerpc: Ultravisor: Fix the dependencies for CONFIG_PPC_UV
Linus Torvalds [Fri, 24 Jan 2020 17:38:04 +0000 (09:38 -0800)]
Merge tag 'drm-fixes-2020-01-24' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"This one has a core mst fix and two i915 fixes. amdgpu just enables
some hw outside experimental.
The panfrost fix is a little bigger than I'd like at this stage but it
fixes a fairly fundamental problem with global shared buffers in that
driver, and since it's confined to that driver and I've taken a look
at it, I think it's fine to get into the tree now, so it can get
stable propagated as well.
core/mst:
- Fix SST branch device handling
amdgpu:
- enable renoir outside experimental
i915:
- Avoid overflow with huge userptr objects
- uAPI fix to correctly handle negative values in
engine->uabi_class/instance (cc: stable)
panfrost:
- Fix mapping of globally visible BO's (Boris)"
* tag 'drm-fixes-2020-01-24' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: remove the experimental flag for renoir
drm/panfrost: Add the panfrost_gem_mapping concept
drm/i915: Align engine->uabi_class/instance with i915_drm.h
drm/i915/userptr: fix size calculation
drm/dp_mst: Handle SST-only branch device case
Christophe Leroy [Thu, 23 Jan 2020 08:34:18 +0000 (08:34 +0000)]
lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()
The range passed to user_access_begin() by strncpy_from_user() and
strnlen_user() starts at 'src' and goes up to the limit of userspace
although reads will be limited by the 'count' param.
On 32 bits powerpc (book3s/32) access has to be granted for each
256Mbytes segment and the cost increases with the number of segments to
unlock.
Limit the range with 'count' param.
Fixes:
594cc251fdd0 ("make 'user_access_begin()' do 'access_ok()'")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jiri Wiesner [Sat, 18 Jan 2020 12:10:50 +0000 (13:10 +0100)]
netfilter: conntrack: sctp: use distinct states for new SCTP connections
The netlink notifications triggered by the INIT and INIT_ACK chunks
for a tracked SCTP association do not include protocol information
for the corresponding connection - SCTP state and verification tags
for the original and reply direction are missing. Since the connection
tracking implementation allows user space programs to receive
notifications about a connection and then create a new connection
based on the values received in a notification, it makes sense that
INIT and INIT_ACK notifications should contain the SCTP state
and verification tags available at the time when a notification
is sent. The missing verification tags cause a newly created
netfilter connection to fail to verify the tags of SCTP packets
when this connection has been created from the values previously
received in an INIT or INIT_ACK notification.
A PROTOINFO event is cached in sctp_packet() when the state
of a connection changes. The CLOSED and COOKIE_WAIT state will
be used for connections that have seen an INIT and INIT_ACK chunk,
respectively. The distinct states will cause a connection state
change in sctp_packet().
Signed-off-by: Jiri Wiesner <jwiesner@suse.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Shuah Khan [Thu, 23 Jan 2020 22:32:14 +0000 (15:32 -0700)]
iommu/amd: Fix IOMMU perf counter clobbering during init
init_iommu_perf_ctr() clobbers the register when it checks write access
to IOMMU perf counters and fails to restore when they are writable.
Add save and restore to fix it.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Fixes:
30861ddc9cca4 ("perf/x86/amd: Add IOMMU Performance Counter resource management")
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Tested-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Jerry Snitselaar [Wed, 22 Jan 2020 00:34:26 +0000 (17:34 -0700)]
iommu/vt-d: Call __dmar_remove_one_dev_info with valid pointer
It is possible for archdata.iommu to be set to
DEFER_DEVICE_DOMAIN_INFO or DUMMY_DEVICE_DOMAIN_INFO so check for
those values before calling __dmar_remove_one_dev_info. Without a
check it can result in a null pointer dereference. This has been seen
while booting a kdump kernel on an HP dl380 gen9.
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: stable@vger.kernel.org # 5.3+
Cc: linux-kernel@vger.kernel.org
Fixes:
ae23bfb68f28 ("iommu/vt-d: Detach domain before using a private one")
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Qu Wenruo [Thu, 23 Jan 2020 23:58:20 +0000 (07:58 +0800)]
btrfs: scrub: Require mandatory block group RO for dev-replace
[BUG]
For dev-replace test cases with fsstress, like btrfs/06[45] btrfs/071,
looped runs can lead to random failure, where scrub finds csum error.
The possibility is not high, around 1/20 to 1/100, but it's causing data
corruption.
The bug is observable after commit
b12de52896c0 ("btrfs: scrub: Don't
check free space before marking a block group RO")
[CAUSE]
Dev-replace has two source of writes:
- Write duplication
All writes to source device will also be duplicated to target device.
Content: Not yet persisted data/meta
- Scrub copy
Dev-replace reused scrub code to iterate through existing extents, and
copy the verified data to target device.
Content: Previously persisted data and metadata
The difference in contents makes the following race possible:
Regular Writer | Dev-replace
-----------------------------------------------------------------
^ |
| Preallocate one data extent |
| at bytenr X, len 1M |
v |
^ Commit transaction |
| Now extent [X, X+1M) is in |
v commit root |
================== Dev replace starts =========================
| ^
| | Scrub extent [X, X+1M)
| | Read [X, X+1M)
| | (The content are mostly garbage
| | since it's preallocated)
^ | v
| Write back happens for |
| extent [X, X+512K) |
| New data writes to both |
| source and target dev. |
v |
| ^
| | Scrub writes back extent [X, X+1M)
| | to target device.
| | This will over write the new data in
| | [X, X+512K)
| v
This race can only happen for nocow writes. Thus metadata and data cow
writes are safe, as COW will never overwrite extents of previous
transaction (in commit root).
This behavior can be confirmed by disabling all fallocate related calls
in fsstress (*), then all related tests can pass a 2000 run loop.
*: FSSTRESS_AVOID="-f fallocate=0 -f allocsp=0 -f zero=0 -f insert=0 \
-f collapse=0 -f punch=0 -f resvsp=0"
I didn't expect resvsp ioctl will fallback to fallocate in VFS...
[FIX]
Make dev-replace to require mandatory block group RO, and wait for current
nocow writes before calling scrub_chunk().
This patch will mostly revert commit
76a8efa171bf ("btrfs: Continue replace
when set_block_ro failed") for dev-replace path.
The side effect is, dev-replace can be more strict on avaialble space, but
definitely worth to avoid data corruption.
Reported-by: Filipe Manana <fdmanana@suse.com>
Fixes:
76a8efa171bf ("btrfs: Continue replace when set_block_ro failed")
Fixes:
b12de52896c0 ("btrfs: scrub: Don't check free space before marking a block group RO")
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
David S. Miller [Fri, 24 Jan 2020 10:42:18 +0000 (11:42 +0100)]
Merge branch 'netdev-seq_file-next-functions-should-increase-position-index'
Vasily Averin says:
====================
netdev: seq_file .next functions should increase position index
In Aug 2018 NeilBrown noticed
commit
1f4aace60b0e ("fs/seq_file.c: simplify seq_file iteration code and interface")
"Some ->next functions do not increment *pos when they return NULL...
Note that such ->next functions are buggy and should be fixed.
A simple demonstration is
dd if=/proc/swaps bs=1000 skip=1
Choose any block size larger than the size of /proc/swaps. This will
always show the whole last line of /proc/swaps"
Described problem is still actual. If you make lseek into middle of last output line
following read will output end of last line and whole last line once again.
$ dd if=/proc/swaps bs=1 # usual output
Filename Type Size Used Priority
/dev/dm-0 partition
4194812 97536 -2
104+0 records in
104+0 records out
104 bytes copied
$ dd if=/proc/swaps bs=40 skip=1 # last line was generated twice
dd: /proc/swaps: cannot skip to specified offset
v/dm-0 partition
4194812 97536 -2
/dev/dm-0 partition
4194812 97536 -2
3+1 records in
3+1 records out
131 bytes copied
There are lot of other affected files, I've found 30+ including
/proc/net/ip_tables_matches and /proc/sysvipc/*
This patch-set fixes files related to netdev@
https://bugzilla.kernel.org/show_bug.cgi?id=206283
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Thu, 23 Jan 2020 07:12:06 +0000 (10:12 +0300)]
ipv6_route_seq_next should increase position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Thu, 23 Jan 2020 07:11:35 +0000 (10:11 +0300)]
rt_cpu_seq_next should increase position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Thu, 23 Jan 2020 07:11:28 +0000 (10:11 +0300)]
neigh_stat_seq_next() should increase position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Thu, 23 Jan 2020 07:11:20 +0000 (10:11 +0300)]
vcc_seq_next should increase position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Thu, 23 Jan 2020 07:11:13 +0000 (10:11 +0300)]
l2t_seq_next should increase position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Thu, 23 Jan 2020 07:11:08 +0000 (10:11 +0300)]
seq_tab_next() should increase position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 23 Jan 2020 05:03:00 +0000 (21:03 -0800)]
tcp: do not leave dangling pointers in tp->highest_sack
Latest commit
853697504de0 ("tcp: Fix highest_sack and highest_sack_seq")
apparently allowed syzbot to trigger various crashes in TCP stack [1]
I believe this commit only made things easier for syzbot to find
its way into triggering use-after-frees. But really the bugs
could lead to bad TCP behavior or even plain crashes even for
non malicious peers.
I have audited all calls to tcp_rtx_queue_unlink() and
tcp_rtx_queue_unlink_and_free() and made sure tp->highest_sack would be updated
if we are removing from rtx queue the skb that tp->highest_sack points to.
These updates were missing in three locations :
1) tcp_clean_rtx_queue() [This one seems quite serious,
I have no idea why this was not caught earlier]
2) tcp_rtx_queue_purge() [Probably not a big deal for normal operations]
3) tcp_send_synack() [Probably not a big deal for normal operations]
[1]
BUG: KASAN: use-after-free in tcp_highest_sack_seq include/net/tcp.h:1864 [inline]
BUG: KASAN: use-after-free in tcp_highest_sack_seq include/net/tcp.h:1856 [inline]
BUG: KASAN: use-after-free in tcp_check_sack_reordering+0x33c/0x3a0 net/ipv4/tcp_input.c:891
Read of size 4 at addr
ffff8880a488d068 by task ksoftirqd/1/16
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.5.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374
__kasan_report.cold+0x1b/0x41 mm/kasan/report.c:506
kasan_report+0x12/0x20 mm/kasan/common.c:639
__asan_report_load4_noabort+0x14/0x20 mm/kasan/generic_report.c:134
tcp_highest_sack_seq include/net/tcp.h:1864 [inline]
tcp_highest_sack_seq include/net/tcp.h:1856 [inline]
tcp_check_sack_reordering+0x33c/0x3a0 net/ipv4/tcp_input.c:891
tcp_try_undo_partial net/ipv4/tcp_input.c:2730 [inline]
tcp_fastretrans_alert+0xf74/0x23f0 net/ipv4/tcp_input.c:2847
tcp_ack+0x2577/0x5bf0 net/ipv4/tcp_input.c:3710
tcp_rcv_established+0x6dd/0x1e90 net/ipv4/tcp_input.c:5706
tcp_v4_do_rcv+0x619/0x8d0 net/ipv4/tcp_ipv4.c:1619
tcp_v4_rcv+0x307f/0x3b40 net/ipv4/tcp_ipv4.c:2001
ip_protocol_deliver_rcu+0x5a/0x880 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x23b/0x380 net/ipv4/ip_input.c:231
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:252
dst_input include/net/dst.h:442 [inline]
ip_rcv_finish+0x1db/0x2f0 net/ipv4/ip_input.c:428
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:538
__netif_receive_skb_one_core+0x113/0x1a0 net/core/dev.c:5148
__netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5262
process_backlog+0x206/0x750 net/core/dev.c:6093
napi_poll net/core/dev.c:6530 [inline]
net_rx_action+0x508/0x1120 net/core/dev.c:6598
__do_softirq+0x262/0x98c kernel/softirq.c:292
run_ksoftirqd kernel/softirq.c:603 [inline]
run_ksoftirqd+0x8e/0x110 kernel/softirq.c:595
smpboot_thread_fn+0x6a3/0xa40 kernel/smpboot.c:165
kthread+0x361/0x430 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Allocated by task 10091:
save_stack+0x23/0x90 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
__kasan_kmalloc mm/kasan/common.c:513 [inline]
__kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486
kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:521
slab_post_alloc_hook mm/slab.h:584 [inline]
slab_alloc_node mm/slab.c:3263 [inline]
kmem_cache_alloc_node+0x138/0x740 mm/slab.c:3575
__alloc_skb+0xd5/0x5e0 net/core/skbuff.c:198
alloc_skb_fclone include/linux/skbuff.h:1099 [inline]
sk_stream_alloc_skb net/ipv4/tcp.c:875 [inline]
sk_stream_alloc_skb+0x113/0xc90 net/ipv4/tcp.c:852
tcp_sendmsg_locked+0xcf9/0x3470 net/ipv4/tcp.c:1282
tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1432
inet_sendmsg+0x9e/0xe0 net/ipv4/af_inet.c:807
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
__sys_sendto+0x262/0x380 net/socket.c:1998
__do_sys_sendto net/socket.c:2010 [inline]
__se_sys_sendto net/socket.c:2006 [inline]
__x64_sys_sendto+0xe1/0x1a0 net/socket.c:2006
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 10095:
save_stack+0x23/0x90 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
kasan_set_free_info mm/kasan/common.c:335 [inline]
__kasan_slab_free+0x102/0x150 mm/kasan/common.c:474
kasan_slab_free+0xe/0x10 mm/kasan/common.c:483
__cache_free mm/slab.c:3426 [inline]
kmem_cache_free+0x86/0x320 mm/slab.c:3694
kfree_skbmem+0x178/0x1c0 net/core/skbuff.c:645
__kfree_skb+0x1e/0x30 net/core/skbuff.c:681
sk_eat_skb include/net/sock.h:2453 [inline]
tcp_recvmsg+0x1252/0x2930 net/ipv4/tcp.c:2166
inet_recvmsg+0x136/0x610 net/ipv4/af_inet.c:838
sock_recvmsg_nosec net/socket.c:886 [inline]
sock_recvmsg net/socket.c:904 [inline]
sock_recvmsg+0xce/0x110 net/socket.c:900
__sys_recvfrom+0x1ff/0x350 net/socket.c:2055
__do_sys_recvfrom net/socket.c:2073 [inline]
__se_sys_recvfrom net/socket.c:2069 [inline]
__x64_sys_recvfrom+0xe1/0x1a0 net/socket.c:2069
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
The buggy address belongs to the object at
ffff8880a488d040
which belongs to the cache skbuff_fclone_cache of size 456
The buggy address is located 40 bytes inside of
456-byte region [
ffff8880a488d040,
ffff8880a488d208)
The buggy address belongs to the page:
page:
ffffea0002922340 refcount:1 mapcount:0 mapping:
ffff88821b057000 index:0x0
raw:
00fffe0000000200 ffffea00022a5788 ffffea0002624a48 ffff88821b057000
raw:
0000000000000000 ffff8880a488d040 0000000100000006 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8880a488cf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880a488cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>
ffff8880a488d000: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
^
ffff8880a488d080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880a488d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
Fixes:
853697504de0 ("tcp: Fix highest_sack and highest_sack_seq")
Fixes:
50895b9de1d3 ("tcp: highest_sack fix")
Fixes:
737ff314563c ("tcp: use sequence distance to detect reordering")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Cambda Zhu <cambda@linux.alibaba.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 23 Jan 2020 09:27:30 +0000 (09:27 +0000)]
net/rose: fix spelling mistake "to" -> "too"
There is a spelling mistake in a printk message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 23 Jan 2020 00:45:55 +0000 (00:45 +0000)]
caif_usb: fix spelling mistake "to" -> "too"
There is a spelling mistake in a pr_warn message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 23 Jan 2020 00:43:28 +0000 (00:43 +0000)]
ipvs: fix spelling mistake "to" -> "too"
There is a spelling mistake in a IP_VS_ERR_RL message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 23 Jan 2020 00:14:29 +0000 (00:14 +0000)]
i40e: fix spelling mistake "to" -> "too"
There is a spelling mistake in a hw_dbg message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 24 Jan 2020 00:02:00 +0000 (16:02 -0800)]
Merge tag 'mmc-v5.5-rc2-2' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"A couple of MMC host fixes:
- sdhci: Fix minimum clock rate for v3 controllers
- sdhci-tegra: Fix SDR50 tuning override
- sdhci_am654: Fixup tuning issues and support for CQHCI
- sdhci_am654: Remove wrong write protect flag"
* tag 'mmc-v5.5-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci: fix minimum clock rate for v3 controller
mmc: tegra: fix SDR50 tuning override
mmc: sdhci_am654: Fix Command Queuing in AM65x
mmc: sdhci_am654: Reset Command and Data line after tuning
mmc: sdhci_am654: Remove Inverted Write Protect flag
Dave Airlie [Thu, 23 Jan 2020 22:58:12 +0000 (08:58 +1000)]
Merge tag 'amd-drm-fixes-5.5-2020-01-23' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.5-2020-01-23:
amdgpu:
- remove the experimental flag from renoir
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123191424.3849-1-alexander.deucher@amd.com
Dave Airlie [Thu, 23 Jan 2020 22:57:37 +0000 (08:57 +1000)]
Merge tag 'drm-intel-fixes-2020-01-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Avoid overflow with huge userptr objects
- uAPI fix to correctly handle negative values in
engine->uabi_class/instance (cc: stable)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123135045.GA12584@jlahtine-desk.ger.corp.intel.com
Cong Wang [Wed, 22 Jan 2020 23:42:02 +0000 (15:42 -0800)]
net_sched: fix datalen for ematch
syzbot reported an out-of-bound access in em_nbyte. As initially
analyzed by Eric, this is because em_nbyte sets its own em->datalen
in em_nbyte_change() other than the one specified by user, but this
value gets overwritten later by its caller tcf_em_validate().
We should leave em->datalen untouched to respect their choices.
I audit all the in-tree ematch users, all of those implement
->change() set em->datalen, so we can just avoid setting it twice
in this case.
Reported-and-tested-by: syzbot+5af9a90dad568aa9f611@syzkaller.appspotmail.com
Reported-by: syzbot+2f07903a5b05e7f36410@syzkaller.appspotmail.com
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
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>
David S. Miller [Thu, 23 Jan 2020 20:24:37 +0000 (21:24 +0100)]
Merge branch 'Fixes-for-SONIC-ethernet-driver'
Finn Thain says:
====================
Fixes for SONIC ethernet driver
Various SONIC driver problems have become apparent over the years,
including tx watchdog timeouts, lost packets and duplicated packets.
The problems are mostly caused by bugs in buffer handling, locking and
(re-)initialization code.
This patch series resolves these problems.
This series has been tested on National Semiconductor hardware (macsonic),
qemu-system-m68k (macsonic) and qemu-system-mips64el (jazzsonic).
The emulated dp8393x device used in QEMU also has bugs.
I have fixed the bugs that I know of in a series of patches at,
https://github.com/fthain/qemu/commits/sonic
Changed since v1:
- Minor revisions as described in commit logs.
- Deferred net-next patches.
Changed since v2:
- Minor revisions as described in commit logs.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Finn Thain [Wed, 22 Jan 2020 22:07:26 +0000 (09:07 +1100)]
net/sonic: Prevent tx watchdog timeout
Section 5.5.3.2 of the datasheet says,
If FIFO Underrun, Byte Count Mismatch, Excessive Collision, or
Excessive Deferral (if enabled) errors occur, transmission ceases.
In this situation, the chip asserts a TXER interrupt rather than TXDN.
But the handler for the TXDN is the only way that the transmit queue
gets restarted. Hence, an aborted transmission can result in a watchdog
timeout.
This problem can be reproduced on congested link, as that can result in
excessive transmitter collisions. Another way to reproduce this is with
a FIFO Underrun, which may be caused by DMA latency.
In event of a TXER interrupt, prevent a watchdog timeout by restarting
transmission.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Finn Thain [Wed, 22 Jan 2020 22:07:26 +0000 (09:07 +1100)]
net/sonic: Fix CAM initialization
Section 4.3.1 of the datasheet says,
This bit [TXP] must not be set if a Load CAM operation is in
progress (LCAM is set). The SONIC will lock up if both bits are
set simultaneously.
Testing has shown that the driver sometimes attempts to set LCAM
while TXP is set. Avoid this by waiting for command completion
before and after giving the LCAM command.
After issuing the Load CAM command, poll for !SONIC_CR_LCAM rather than
SONIC_INT_LCD, because the SONIC_CR_TXP bit can't be used until
!SONIC_CR_LCAM.
When in reset mode, take the opportunity to reset the CAM Enable
register.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>