Later commits will cause objtool to warn about static calls being used in .noinstr sections in order to safely defer instruction patching IPIs targeted at NOHZ_FULL CPUs.
x86_idle is updated in: o xen_set_default_idle() <- __init xen_arch_setup() o __init select_idle_routine()
IOW purely init context, and can thus be marked as __ro_after_init.
Reported-by: Josh Poimboeuf jpoimboe@kernel.org Signed-off-by: Valentin Schneider vschneid@redhat.com --- arch/x86/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 962c3ce39323e..90f31f8526aa4 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -752,7 +752,7 @@ void __cpuidle default_idle(void) EXPORT_SYMBOL(default_idle); #endif
-DEFINE_STATIC_CALL_NULL(x86_idle, default_idle); +DEFINE_STATIC_CALL_NULL_RO(x86_idle, default_idle);
static bool x86_idle_set(void) {