powerpc/64: hard disable irqs in panic_smp_self_stop

Similarly to commit 855bfe0de1 ("powerpc: hard disable irqs in
smp_send_stop loop"), irqs should be hard disabled by
panic_smp_self_stop.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 7a7ce8ad455e1533498fc3c7a5d8a853abb4d9cd..225bc5f91049436277e7c45787d8a7370d6dac78 100644 (file)
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -387,6 +387,14 @@ void early_setup_secondary(void)
 
 #endif /* CONFIG_SMP */
 
+void panic_smp_self_stop(void)
+{
+       hard_irq_disable();
+       spin_begin();
+       while (1)
+               spin_cpu_relax();
+}
+
 #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC_CORE)
 static bool use_spinloop(void)
 {