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authorZhao Chenhui <chenhui.zhao@freescale.com>2012-07-20 20:47:01 +0800
committerKumar Gala <galak@kernel.crashing.org>2012-09-19 08:38:16 -0500
commite6651de9cc701ab4829b3a11a7ace85a79405d32 (patch)
treeaf54ca67285b6a13b5ca4405d8372e60b986ccb4
parentcaa1d631fc99940f866480c2bb88a6f5a235e7a2 (diff)
powerpc/smp: Do not disable IPI interrupts during suspend
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@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
-rw-r--r--arch/powerpc/kernel/smp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index a51ed205016e..2b952b5386fd 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)
}
#endif
err = request_irq(virq, smp_ipi_action[msg],
- IRQF_PERCPU | IRQF_NO_THREAD,
+ IRQF_PERCPU | IRQF_NO_THREAD | IRQF_NO_SUSPEND,
smp_ipi_name[msg], 0);
WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n",
virq, smp_ipi_name[msg], err);