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.
pv_sched_clock is updated in: o __init vmware_paravirt_ops_setup() o __init xen_init_time_common() o kvm_sched_clock_init() <- __init kvmclock_init() o hv_setup_sched_clock() <- __init hv_init_tsc_clocksource()
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/paravirt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 1ccd05d8999f1..0da0ec6cdecfb 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -68,7 +68,7 @@ static u64 native_steal_clock(int cpu) }
DEFINE_STATIC_CALL(pv_steal_clock, native_steal_clock); -DEFINE_STATIC_CALL(pv_sched_clock, native_sched_clock); +DEFINE_STATIC_CALL_RO(pv_sched_clock, native_sched_clock);
void paravirt_set_sched_clock(u64 (*func)(void)) {