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Tero Kristo 811ed5a3f6 cpufreq: intel_pstate: Fix energy_performance_preference for passive 
[ Upstream commit 03f44ffb3d ]

If the intel_pstate driver is set to passive mode, then writing the
same value to the energy_performance_preference sysfs twice will fail.
This is caused by the wrong return value used (index of the matched
energy_perf_string), instead of the length of the passed in parameter.
Fix by forcing the internal return value to zero when the same
preference is passed in by user. This same issue is not present when
active mode is used for the driver.

Fixes: f6ebbcf08f ("cpufreq: intel_pstate: Implement passive mode with HWP enabled")
Reported-by: Niklas Neronin <niklas.neronin@intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-07-11 19:39:24 +02:00
..
Kconfig Power management updates for 6.3-rc1 2023-02-21 12:13:58 -08:00
Kconfig.arm cpufreq: remove s3c24xx drivers 2023-01-16 09:26:06 +01:00
Kconfig.powerpc cpufreq: Fix Kconfig indentation 2019-11-29 11:52:02 +01:00
Kconfig.x86 cpufreq: amd-pstate: change amd-pstate driver to be built-in type 2022-11-22 19:57:15 +01:00
Makefile Power management updates for 6.3-rc1 2023-02-21 12:13:58 -08:00
acpi-cpufreq.c cpufreq: ACPI: Only set boost MSRs on supported CPUs 2022-12-06 12:12:40 +01:00
amd-pstate-trace.c cpufreq: amd-pstate: Add trace for AMD P-State module 2021-12-30 18:51:39 +01:00
amd-pstate-trace.h cpufreq: amd-pstate: Add more tracepoint for AMD P-State module 2022-03-09 19:53:01 +01:00
amd-pstate-ut.c cpufreq: amd-pstate: fix spdxcheck warnings for amd-pstate-ut.c 2022-11-16 08:38:19 -07:00
amd-pstate.c cpufreq: amd-pstate: Make amd-pstate EPP driver name hyphenated 2023-07-01 13:14:44 +02:00
amd_freq_sensitivity.c cpufreq: amd_freq_sensitivity: Add missing pci_dev_put() 2022-11-30 19:50:04 +01:00
apple-soc-cpufreq.c cpufreq: apple-soc: Fix an IS_ERR() vs NULL check 2023-03-01 19:34:54 +01:00
armada-8k-cpufreq.c cpufreq: ap806: Add missing MODULE_DEVICE_TABLE 2020-12-07 13:02:37 +05:30
armada-37xx-cpufreq.c cpufreq: armada-37xx: stop using 0 as NULL pointer 2023-01-10 09:32:03 +05:30
bmips-cpufreq.c cpufreq: bmips-cpufreq: Use module_init and add module_exit 2022-08-30 13:49:23 +05:30
brcmstb-avs-cpufreq.c cpufreq: Make cpufreq_unregister_driver() return void 2023-02-09 20:19:18 +01:00
cppc_cpufreq.c cpufreq: CPPC: Add u64 casts to avoid overflowing 2022-12-27 08:27:14 +05:30
cpufreq-dt-platdev.c cpufreq: Add SM6375 to cpufreq-dt-platdev blocklist 2023-01-04 12:05:06 +05:30
cpufreq-dt.c cpufreq: dt: Switch to use dev_err_probe() helper 2022-10-18 16:22:25 +05:30
cpufreq-dt.h cpufreq: dt: Allow platform specific intermediate callbacks 2020-03-12 15:43:52 +05:30
cpufreq-nforce2.c cpufreq: Avoid creating excessively large stack frames 2020-01-27 10:33:33 +01:00
cpufreq.c cpufreq: use correct unit when verify cur freq 2023-05-11 23:17:10 +09:00
cpufreq_conservative.c cpufreq: unify show() and store() naming and use __ATTR_XX 2022-03-10 19:55:05 +01:00
cpufreq_governor.c cpufreq: governor: Use kobject release() method to free dbs_data 2022-04-13 15:22:41 +02:00
cpufreq_governor.h cpufreq: governor: Use kobject release() method to free dbs_data 2022-04-13 15:22:41 +02:00
cpufreq_governor_attr_set.c cpufreq: Move to_gov_attr_set() to cpufreq.h 2022-02-04 19:22:34 +01:00
cpufreq_ondemand.c cpufreq: ondemand: Use cpumask_var_t for on-stack cpu mask 2022-07-25 20:38:01 +02:00
cpufreq_ondemand.h
…
cpufreq_performance.c cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET 2020-11-10 18:31:17 +01:00
cpufreq_powersave.c cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET 2020-11-10 18:31:17 +01:00
cpufreq_stats.c cpufreq: stats: Convert to use sysfs_emit_at() API 2022-12-06 12:20:07 +01:00
cpufreq_userspace.c cpufreq: Register governors at core_initcall 2020-07-02 13:03:30 +02:00
davinci-cpufreq.c cpufreq: davinci: Fix clk use after free 2023-02-09 20:26:42 +01:00
e_powersaver.c cpufreq: e_powersaver: remove unreachable break 2020-10-27 18:42:54 +01:00
elanfreq.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
freq_table.c cpufreq: Fix scaling_{available,boost}_frequencies_show() comments 2021-03-26 17:43:48 +01:00
gx-suspmod.c cpufreq: Avoid creating excessively large stack frames 2020-01-27 10:33:33 +01:00
highbank-cpufreq.c cpufreq: Add __init annotation to module init funcs 2022-09-26 11:15:04 +05:30
ia64-acpi-cpufreq.c ia64: fix format string for ia64-acpi-cpu-freq 2021-03-19 17:26:20 +01:00
imx-cpufreq-dt.c OPP: Migrate set-supported-hw API to use set-config helpers 2022-07-08 11:27:48 +05:30
imx6q-cpufreq.c cpufreq: imx6q: Switch to use dev_err_probe() helper 2022-10-18 16:22:25 +05:30
intel_pstate.c cpufreq: intel_pstate: Fix energy_performance_preference for passive 2023-07-11 19:39:24 +02:00
kirkwood-cpufreq.c cpufreq: kirkwood: convert to devm_platform_ioremap_resource 2020-01-07 13:29:58 +05:30
longhaul.c cpufreq: longhaul: Make array speeds static const 2022-11-03 19:13:34 +01:00
longhaul.h
…
longrun.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
loongson2_cpufreq.c cpufreq: loongson2: Remove unused linux/sched.h headers 2021-06-07 17:43:52 +02:00
maple-cpufreq.c
…
mediatek-cpufreq-hw.c Cpufreq arm updates for 6.3 2023-02-14 15:25:07 +01:00
mediatek-cpufreq.c cpufreq: mediatek: Raise proc and sram max voltage for MT7622/7623 2023-05-11 23:17:04 +09:00
mvebu-cpufreq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
omap-cpufreq.c cpufreq: Make cpufreq_unregister_driver() return void 2023-02-09 20:19:18 +01:00
p4-clockmod.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pasemi-cpufreq.c cpufreq: Prepare cleanup of powerpc's asm/prom.h 2022-04-13 17:18:45 +02:00
pcc-cpufreq.c cpufreq: pcc-cpufreq: Mark sometimes used ID structs as __maybe_unused 2020-07-15 15:17:06 +02:00
pmac32-cpufreq.c cpufreq: pmac32-cpufreq: Fix refcount leak bug 2022-06-28 13:34:51 +05:30
pmac64-cpufreq.c cpufreq: Prepare cleanup of powerpc's asm/prom.h 2022-04-13 17:18:45 +02:00
powernow-k6.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
powernow-k7.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
powernow-k7.h
…
powernow-k8.c cpufreq: powernow-k8: Re-order the init checks 2022-03-17 14:54:11 +01:00
powernow-k8.h
…
powernv-cpufreq.c cpufreq: Introducing CPUFREQ_RELATION_E 2021-10-05 16:33:05 +02:00
ppc_cbe_cpufreq.c cpufreq: Prepare cleanup of powerpc's asm/prom.h 2022-04-13 17:18:45 +02:00
ppc_cbe_cpufreq.h
…
ppc_cbe_cpufreq_pervasive.c
…
ppc_cbe_cpufreq_pmi.c cpufreq: Prepare cleanup of powerpc's asm/prom.h 2022-04-13 17:18:45 +02:00
pxa2xx-cpufreq.c cpufreq: pxa3: move clk register access to clk driver 2022-05-07 22:55:49 +02:00
pxa3xx-cpufreq.c cpufreq: pxa3: move clk register access to clk driver 2022-05-07 22:55:49 +02:00
qcom-cpufreq-hw.c cpufreq: qcom-cpufreq-hw: Revert adding cpufreq qos 2023-05-11 23:17:04 +09:00
qcom-cpufreq-nvmem.c cpufreq: qcom-nvmem: Switch to use dev_err_probe() helper 2022-10-18 16:22:26 +05:30
qoriq-cpufreq.c drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.c 2022-06-28 13:34:45 +05:30
raspberrypi-cpufreq.c
…
s3c64xx-cpufreq.c cpufreq: s3c64xx: Remove pointless NULL check in s3c64xx_cpufreq_driver_init 2019-10-23 08:53:23 +05:30
s5pv210-cpufreq.c cpufreq: Introducing CPUFREQ_RELATION_E 2021-10-05 16:33:05 +02:00
sa1110-cpufreq.c ARM: sa1100: remove unused board files 2023-01-12 10:53:12 +01:00
sc520_freq.c cpufreq: sc520_freq: add 'fallthrough' to one case 2021-05-21 18:52:13 +02:00
scmi-cpufreq.c cpufreq: scmi: Support the power scale in micro-Watts in SCMI v3.1 2022-07-15 19:17:30 +02:00
scpi-cpufreq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE 2022-06-10 14:51:36 +02:00
sh-cpufreq.c cpufreq: sh: Remove sh_cpufreq_cpu_ready() 2021-09-02 18:04:17 +02:00
sparc-us2e-cpufreq.c
…
sparc-us3-cpufreq.c
…
spear-cpufreq.c cpufreq: SPEAr: Make read-only array sys_clk_src static 2022-11-03 19:15:45 +01:00
speedstep-centrino.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
speedstep-ich.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
speedstep-lib.c cpufreq: speedstep: remove unneeded semicolon 2020-10-28 18:04:07 +01:00
speedstep-lib.h
…
speedstep-smi.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
sti-cpufreq.c cpufreq: Add __init annotation to module init funcs 2022-09-26 11:15:04 +05:30
sun50i-cpufreq-nvmem.c cpufreq: sun50i: Switch to use dev_err_probe() helper 2022-10-18 16:22:26 +05:30
tegra20-cpufreq.c OPP: Migrate set-supported-hw API to use set-config helpers 2022-07-08 11:27:48 +05:30
tegra124-cpufreq.c cpufreq: tegra124: Add suspend and resume support 2019-10-29 13:25:29 +01:00
tegra186-cpufreq.c cpufreq: tegra186: Use flexible array to simplify memory allocation 2022-12-01 14:49:50 +05:30
tegra194-cpufreq.c cpufreq: tegra194: Enable CPUFREQ thermal cooling 2023-02-06 09:31:38 +05:30
ti-cpufreq.c cpufreq: ti-cpufreq: Add support for AM625 2022-11-07 15:30:11 +05:30
vexpress-spc-cpufreq.c cpufreq: vexpress: Drop unused variable 2021-10-04 11:25:21 +05:30