This is a note to let you know that I've just added the patch titled powerpc/4xx/cpm: 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-4xx-cpm-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 125594bcf606db3875c81556a6d0d541dc5f93ce Author: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Date: Mon May 2 12:29:41 2022 -0700 powerpc/4xx/cpm: Fix return value of __setup() handler [ Upstream commit 5bb99fd4090fe1acfdb90a97993fcda7f8f5a3d6 ] __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 cpm_powersave_off(). Fixes: d164f6d4f910 ("powerpc/4xx: Add suspend and idle support") 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/20220502192941.20955-1-rdunlap@xxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/powerpc/platforms/4xx/cpm.c b/arch/powerpc/platforms/4xx/cpm.c index 2571841625a2..1d3bc35ee1a7 100644 --- a/arch/powerpc/platforms/4xx/cpm.c +++ b/arch/powerpc/platforms/4xx/cpm.c @@ -327,6 +327,6 @@ late_initcall(cpm_init); static int __init cpm_powersave_off(char *arg) { cpm.powersave_off = 1; - return 0; + return 1; } __setup("powersave=off", cpm_powersave_off);