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-rw-r--r--include/asm-generic/io.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index cc7338f9e0d1..7ce93aaf69f8 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -957,7 +957,7 @@ static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
#ifndef iounmap
#define iounmap iounmap
-static inline void iounmap(void __iomem *addr)
+static inline void iounmap(volatile void __iomem *addr)
{
}
#endif