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-rw-r--r--arch/arm/include/asm/io.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 214f3ea51f4..6d18eb330a9 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -136,6 +136,7 @@ extern inline void __raw_readsl(unsigned long addr, void *data, int longlen)
* TODO: The kernel offers some more advanced versions of barriers, it might
* have some advantages to use them instead of the simple one here.
*/
+#define mb() asm volatile("dsb sy" : : : "memory")
#define dmb() __asm__ __volatile__ ("" : : : "memory")
#define __iormb() dmb()
#define __iowmb() dmb()