From f4d0d40cd1f19104e4f60537973ff5ac2f90123e Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Fri, 14 Aug 2020 15:14:12 +0200
Subject: [PATCH] parisc: Avoid external interrupts when IPI finishes
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 | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6271139d2213a..10227f667c8a6 100644
--- 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;
--
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