This is a note to let you know that I've just added the patch titled powerpc/idle: Fix return value of __setup() handler to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: powerpc-idle-fix-return-value-of-__setup-handler.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 67798fcc124ba6413a328089b43c983cf70274ed Author: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Date: Mon May 2 12:29:25 2022 -0700 powerpc/idle: Fix return value of __setup() handler [ Upstream commit b793a01000122d2bd133ba451a76cc135b5e162c ] __setup() handlers should return 1 to obsolete_checksetup() in init/main.c to indicate that the boot option has been handled. A return of 0 causes the boot option/value to be listed as an Unknown kernel parameter and added to init's (limited) argument or environment strings. Also, error return codes don't mean anything to obsolete_checksetup() -- only non-zero (usually 1) or zero. So return 1 from powersave_off(). Fixes: 302eca184fb8 ("[POWERPC] cell: use ppc_md->power_save instead of cbe_idle_loop") Reported-by: Igor Zhbanov <izh1979@xxxxxxxxx> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220502192925.19954-1-rdunlap@xxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index 4ad79eb638c6..77cd4c5a2d63 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -37,7 +37,7 @@ static int __init powersave_off(char *arg) { ppc_md.power_save = NULL; cpuidle_disable = IDLE_POWERSAVE_OFF; - return 0; + return 1; } __setup("powersave=off", powersave_off);