Since commit 3b9d6da67e11 ("cpu/hotplug: Fix rollback during error-out
in __cpu_disable()") it is ensured that callbacks of CPU_ONLINE and
CPU_DOWN_PREPARE are processed on the hotplugged CPU. Due to this SMP
function calls are no longer required.Replace smp_call_function_single() with a direct call to ia64_mca_cmc_vector_adjust(). The function itselfs handles disable and enable interrupts, therefore the smp_call_function_single() calling convention is not preserved. Cc: Tony Luck <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: [email protected] Signed-off-by: Anna-Maria Gleixner <[email protected]> --- arch/ia64/kernel/mca.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1904,13 +1904,10 @@ static int mca_cpu_callback(struct notif unsigned long action, void *hcpu) { - int hotcpu = (unsigned long) hcpu; - switch (action) { case CPU_ONLINE: case CPU_ONLINE_FROZEN: - smp_call_function_single(hotcpu, ia64_mca_cmc_vector_adjust, - NULL, 0); + ia64_mca_cmc_vector_adjust(NULL); break; } return NOTIFY_OK;
