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[PATCH] irqchip: bcm2836: Drop extra memory barrier in SMP boot.

From Eric Anholt <eric@anholt.net>
Newsgroups linux.kernel
Subject [PATCH] irqchip: bcm2836: Drop extra memory barrier in SMP boot.
Date 2016-02-04 22:20 +0100
Message-ID <qYztM-7sP-21@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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The writel() immediately after this has a barrier, anyway.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/irqchip/irq-bcm2836.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c
index 963065a..b6e950d 100644
--- a/drivers/irqchip/irq-bcm2836.c
+++ b/drivers/irqchip/irq-bcm2836.c
@@ -229,7 +229,6 @@ int __init bcm2836_smp_boot_secondary(unsigned int cpu,
 	unsigned long secondary_startup_phys =
 		(unsigned long)virt_to_phys((void *)secondary_startup);
 
-	dsb();
 	writel(secondary_startup_phys,
 	       intc.base + LOCAL_MAILBOX3_SET0 + 16 * cpu);
 
-- 
2.7.0

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[PATCH] irqchip: bcm2836: Drop extra memory barrier in SMP boot. Eric Anholt <eric@anholt.net> - 2016-02-04 22:20 +0100

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