Later commits will cause objtool to warn about non __ro_after_init static keys being used in .noinstr sections in order to safely defer instruction patching IPIs targeted at NOHZ_FULL CPUs. __sched_clock_stable is used in .noinstr code, and can be modified at runtime (e.g. KVM module loading). Suppressing the text_poke_sync() IPI has little benefits for this key, as NOHZ_FULL is incompatible with an unstable TSC anyway. Mark it as forceful to let the kernel know to always send the text_poke_sync() IPI for it, and to let objtool know not to warn about it. Signed-off-by: Valentin Schneider <vschneid@xxxxxxxxxx> --- kernel/sched/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c index 200e5568b9894..dc94b3717f5ce 100644 --- a/kernel/sched/clock.c +++ b/kernel/sched/clock.c @@ -76,7 +76,7 @@ static DEFINE_STATIC_KEY_FALSE_RO(sched_clock_running); * Similarly we start with __sched_clock_stable_early, thereby assuming we * will become stable, such that there's only a single 1 -> 0 transition. */ -static DEFINE_STATIC_KEY_FALSE(__sched_clock_stable); +static DEFINE_STATIC_KEY_FALSE_FORCE(__sched_clock_stable); static int __sched_clock_stable_early = 1; /* -- 2.43.0
