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powerpc/smp: Do not disable IPI interrupts during suspend

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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>
This commit is contained in:
Zhao Chenhui 2012-07-20 20:47:01 +08:00 committed by Kumar Gala
parent caa1d631fc
commit e6651de9cc
1 changed files with 1 additions and 1 deletions
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arch/powerpc/kernel/smp.c
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@ -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);