nds32/io: Remove useless definition of mmiowb()

mmiowb() only makes sense for SMP platforms, so we can remove it entirely for nds32. Signed-off-by: Will Deacon <[email protected]> Acked-by: Greentime Hu <[email protected]> Signed-off-by: Greentime Hu <[email protected]>
jbrandeb · May 7, 2019 · 8ac7857 · 8ac7857
1 parent e1bf776
commit 8ac7857
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h
@@ -55,8 +55,6 @@ static inline u32 __raw_readl(const volatile void __iomem *addr)
 #define __iormb()               rmb()
 #define __iowmb()               wmb()
 
-#define mmiowb()        __asm__ __volatile__ ("msync all" : : : "memory");
-
 /*
  * {read,write}{b,w,l,q}_relaxed() are like the regular version, but
  * are not guaranteed to provide ordering against spinlocks or memory