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parisc: Avoid external interrupts when IPI finishes
author
Helge Deller
<deller@gmx.de>
Fri, 14 Aug 2020 13:14:12 +0000
(15:14 +0200)
committer
Helge Deller
<deller@gmx.de>
Thu, 15 Oct 2020 06:10:37 +0000
(08:10 +0200)
No need to allow external interrupts when the IPI loop is going to
finish now.
Signed-off-by: Helge Deller <deller@gmx.de>
arch/parisc/kernel/smp.c
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diff --git
a/arch/parisc/kernel/smp.c
b/arch/parisc/kernel/smp.c
index
6271139
..
10227f6
100644
(file)
--- a/
arch/parisc/kernel/smp.c
+++ b/
arch/parisc/kernel/smp.c
@@
-173,9
+173,12
@@
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;