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powerpc/64: hard disable irqs in panic_smp_self_stop
author
Nicholas Piggin
<npiggin@gmail.com>
Sat, 19 May 2018 04:35:52 +0000
(14:35 +1000)
committer
Michael Ellerman
<mpe@ellerman.id.au>
Tue, 19 Jun 2018 11:28:22 +0000
(21:28 +1000)
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>
arch/powerpc/kernel/setup_64.c
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diff --git
a/arch/powerpc/kernel/setup_64.c
b/arch/powerpc/kernel/setup_64.c
index
7a7ce8a
..
225bc5f
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)
{