linux-stable.git/drivers/cpufreq, branch v5.4.97 Linux kernel stable tree cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get() 2021-01-17T13:05:35+00:00 Colin Ian King colin.king@canonical.com 2021-01-05T10:19:57+00:00 9ff4796e6fd953b00241e7bc6740c8bf1c800580 commit 943bdd0cecad06da8392a33093230e30e501eccc upstream. Currently there is an unlikely case where cpufreq_cpu_get() returns a NULL policy and this will cause a NULL pointer dereference later on. Fix this by passing the policy to transition_frequency_fidvid() from the caller and hence eliminating the need for the cpufreq_cpu_get() and cpufreq_cpu_put(). Thanks to Viresh Kumar for suggesting the fix. Addresses-Coverity: ("Dereference null return") Fixes: b43a7ffbf33b ("cpufreq: Notify all policy->cpus in cpufreq_notify_transition()") Suggested-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 943bdd0cecad06da8392a33093230e30e501eccc upstream.

Currently there is an unlikely case where cpufreq_cpu_get() returns a
NULL policy and this will cause a NULL pointer dereference later on.

Fix this by passing the policy to transition_frequency_fidvid() from
the caller and hence eliminating the need for the cpufreq_cpu_get()
and cpufreq_cpu_put().

Thanks to Viresh Kumar for suggesting the fix.

Addresses-Coverity: ("Dereference null return")
Fixes: b43a7ffbf33b ("cpufreq: Notify all policy->cpus in cpufreq_notify_transition()")
Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cpufreq: scpi: Add missing MODULE_ALIAS 2020-12-30T10:51:20+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:38+00:00 3d3caa8e971d07ccdba13a351c46b4cc9d751b0c [ Upstream commit c0382d049d2def37b81e907a8b22661a4a4a6eb5 ] This patch adds missing MODULE_ALIAS for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: 8def31034d033 ("cpufreq: arm_big_little: add SCPI interface driver") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit c0382d049d2def37b81e907a8b22661a4a4a6eb5 ]

This patch adds missing MODULE_ALIAS for automatic loading of this cpufreq
driver when it is compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 8def31034d033 ("cpufreq: arm_big_little: add SCPI interface driver")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: loongson1: Add missing MODULE_ALIAS 2020-12-30T10:51:20+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:37+00:00 6e34c9478fe51215c91a68771c89448cc6e55006 [ Upstream commit b9acab091842ca8b288882798bb809f7abf5408a ] This patch adds missing MODULE_ALIAS for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: a0a22cf14472f ("cpufreq: Loongson1: Add cpufreq driver for Loongson1B") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit b9acab091842ca8b288882798bb809f7abf5408a ]

This patch adds missing MODULE_ALIAS for automatic loading of this cpufreq
driver when it is compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: a0a22cf14472f ("cpufreq: Loongson1: Add cpufreq driver for Loongson1B")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE 2020-12-30T10:51:20+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:36+00:00 3e3feeb0d2ba8354ba0e0ac74ebb5f0ca281fffa [ Upstream commit af2096f285077e3339eb835ad06c50bdd59f01b5 ] This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: f328584f7bff8 ("cpufreq: Add sun50i nvmem based CPU scaling driver") Reviewed-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit af2096f285077e3339eb835ad06c50bdd59f01b5 ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: f328584f7bff8 ("cpufreq: Add sun50i nvmem based CPU scaling driver")
Reviewed-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: st: Add missing MODULE_DEVICE_TABLE 2020-12-30T10:51:19+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:35+00:00 ef802b5a5e260e93171b273d99f68b5ae11a9a4c [ Upstream commit 183747ab52654eb406fc6b5bfb40806b75d31811 ] This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: ab0ea257fc58d ("cpufreq: st: Provide runtime initialised driver for ST's platforms") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 183747ab52654eb406fc6b5bfb40806b75d31811 ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: ab0ea257fc58d ("cpufreq: st: Provide runtime initialised driver for ST's platforms")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: qcom: Add missing MODULE_DEVICE_TABLE 2020-12-30T10:51:19+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:34+00:00 742697643c94e1be3e54044eca2d6721b35aa442 [ Upstream commit a5a6031663bc1dd0a10babd49d1bcb3153a8327f ] This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: 46e2856b8e188 ("cpufreq: Add Kryo CPU scaling driver") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit a5a6031663bc1dd0a10babd49d1bcb3153a8327f ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 46e2856b8e188 ("cpufreq: Add Kryo CPU scaling driver")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE 2020-12-30T10:51:19+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:33+00:00 c9d204c02825c0352ad5303fe8ad34486573a969 [ Upstream commit af6eca06501118af3e2ad46eee8edab20624b74e ] This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: 501c574f4e3a5 ("cpufreq: mediatek: Add support of cpufreq to MT2701/MT7623 SoC") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit af6eca06501118af3e2ad46eee8edab20624b74e ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 501c574f4e3a5 ("cpufreq: mediatek: Add support of cpufreq to MT2701/MT7623 SoC")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: highbank: Add missing MODULE_DEVICE_TABLE 2020-12-30T10:51:19+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:32+00:00 f3754eec127d5abf984b9c5e83c59ed526d05e4a [ Upstream commit 9433777a6e0aae27468d3434b75cd51bb88ff711 ] This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: 6754f556103be ("cpufreq / highbank: add support for highbank cpufreq") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 9433777a6e0aae27468d3434b75cd51bb88ff711 ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 6754f556103be ("cpufreq / highbank: add support for highbank cpufreq")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
cpufreq: ap806: Add missing MODULE_DEVICE_TABLE 2020-12-30T10:51:19+00:00 Pali Rohár pali@kernel.org 2020-11-03T15:11:31+00:00 e328362210178e3332396a58d5cd22324d87fd64 [ Upstream commit 925a5bcefe105f2790ecbdc252eb2315573f309d ] This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this cpufreq driver when it is compiled as an external module. Signed-off-by: Pali Rohár <pali@kernel.org> Fixes: f525a670533d9 ("cpufreq: ap806: add cpufreq driver for Armada 8K") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 925a5bcefe105f2790ecbdc252eb2315573f309d ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: f525a670533d9 ("cpufreq: ap806: add cpufreq driver for Armada 8K")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
acpi-cpufreq: Honor _PSD table setting on new AMD CPUs 2020-11-05T10:43:25+00:00 Wei Huang wei.huang2@amd.com 2020-10-19T03:57:41+00:00 a034ea12bdd4bdb844460248827483f8f43126d5 commit 5368512abe08a28525d9b24abbfc2a72493e8dba upstream. acpi-cpufreq has a old quirk that overrides the _PSD table supplied by BIOS on AMD CPUs. However the _PSD table of new AMD CPUs (Family 19h+) now accurately reports the P-state dependency of CPU cores. Hence this quirk needs to be fixed in order to support new CPUs' frequency control. Fixes: acd316248205 ("acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs") Signed-off-by: Wei Huang <wei.huang2@amd.com> [ rjw: Subject edit ] Cc: 3.10+ <stable@vger.kernel.org> # 3.10+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 5368512abe08a28525d9b24abbfc2a72493e8dba upstream.

acpi-cpufreq has a old quirk that overrides the _PSD table supplied by
BIOS on AMD CPUs. However the _PSD table of new AMD CPUs (Family 19h+)
now accurately reports the P-state dependency of CPU cores. Hence this
quirk needs to be fixed in order to support new CPUs' frequency control.

Fixes: acd316248205 ("acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs")
Signed-off-by: Wei Huang <wei.huang2@amd.com>
[ rjw: Subject edit ]
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>