From: Randy Dunlap rdunlap@infradead.org
[ 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@gmail.com Signed-off-by: Randy Dunlap rdunlap@infradead.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220502192925.19954-1-rdunlap@infradead.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kernel/idle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index d7216c9abda1..ca79aacfeda2 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -41,7 +41,7 @@ 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);