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charset="utf-8" The dynamic EPP feature uses power_supply_reg_notifier() and power_supply_unreg_notifier() but doesn't declare a dependency on POWER_SUPPLY, causing linker errors when POWER_SUPPLY is not enabled. Add POWER_SUPPLY to the selects. Suggested-by: K Prateek Nayak Fixes: e30ca6dd5345 ("cpufreq/amd-pstate: Add dynamic energy performance pr= eference") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202604040742.ySEdkuAa-lkp@int= el.com/ Signed-off-by: Mario Limonciello --- v2: * Use Prateek's suggestion drivers/cpufreq/Kconfig.x86 | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index 53e2702e6f1c..7cd156b5e0fc 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -41,6 +41,7 @@ config X86_AMD_PSTATE select ACPI_CPPC_LIB if X86_64 select CPU_FREQ_GOV_SCHEDUTIL if SMP select ACPI_PLATFORM_PROFILE + select POWER_SUPPLY help This driver adds a CPUFreq driver which utilizes a fine grain processor performance frequency control range instead of legacy --=20 2.43.0