irqchip/bcm2836: Drop extra memory barrier in SMP boot.

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

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://lkml.kernel.org/r/1454620468-31303-1-git-send-email-eric@anholt.net
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c
index 963065a..b6e950d 100644 (file)
--- 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);