[PATCH RESEND] arm: add DSB after icache flush in __flush_icache_all()

From: Vinayak Kale
Date: Wed Feb 12 2014 - 01:30:27 EST


Add DSB after icache flush to complete the cache maintenance operation.

Signed-off-by: Vinayak Kale <vkale@xxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
---
KernelVersion: 3.14-rc1

PS:
- This patch is tested for ARM-v7.

arch/arm/include/asm/cacheflush.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index ee753f1..ab91ebb 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -212,6 +212,7 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
static inline void __flush_icache_all(void)
{
__flush_icache_preferred();
+ dsb();
}

/*
--
1.7.9.5

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