diff mbox series

parisc: Avoid external interrupts when IPI finishes

Message ID 20200814131412.GA9797@ls3530 (mailing list archive)
State Superseded
Headers show
Series parisc: Avoid external interrupts when IPI finishes | expand

Commit Message

Helge Deller Aug. 14, 2020, 1:14 p.m. UTC 
No need to allow external interrupts when the IPI loop is going to
finish now.

Signed-off-by: Helge Deller <deller@gmx.de>
diff mbox series

Patch

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;