* [PATCH] parisc: Avoid external interrupts when IPI finishes
@ 2020-08-14 13:14 Helge Deller
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From: Helge Deller @ 2020-08-14 13:14 UTC (permalink / raw)
To: linux-parisc
No need to allow external interrupts when the IPI loop is going to
finish now.
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6271139d2213..cd7694497428 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -173,9 +183,12 @@ ipi_interrupt(int irq, void *dev_id)
this_cpu, which);
return IRQ_NONE;
} /* Switch */
- /* let in any pending interrupts */
- local_irq_enable();
- local_irq_disable();
+
+ /* before doing more, let in any pending interrupts */
+ if (ops) {
+ local_irq_enable();
+ local_irq_disable();
+ }
} /* while (ops) */
}
return IRQ_HANDLED;
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2020-08-14 13:14 [PATCH] parisc: Avoid external interrupts when IPI finishes Helge Deller
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