[PATCH] powerpc/smp: Do not disable IPI interrupts during suspend

From: Zhao Chenhui
Date: Fri Jul 20 2012 - 08:45:16 EST

During suspend, all interrupts including IPI will be disabled. In this case,
the suspend process will hang in SMP. To prevent this, pass the flag
IRQF_NO_SUSPEND when requesting IPI irq.

Signed-off-by: Zhao Chenhui <chenhui.zhao@xxxxxxxxxxxxx>
Signed-off-by: Li Yang <leoli@xxxxxxxxxxxxx>
arch/powerpc/kernel/smp.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index fecb038..d26bbf8 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -171,7 +171,7 @@ int smp_request_message_ipi(int virq, int msg)
err = request_irq(virq, smp_ipi_action[msg],
smp_ipi_name[msg], 0);
WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n",
virq, smp_ipi_name[msg], err);

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