diff --git a/arch/csky/include/asm/tlb.h b/arch/csky/include/asm/tlb.h
index 750d041938d8..702861c68874 100644
--- a/arch/csky/include/asm/tlb.h
+++ b/arch/csky/include/asm/tlb.h
@@ -4,8 +4,6 @@
 #define __ASM_CSKY_TLB_H
 
 #include <asm/cacheflush.h>
-#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
-
 #include <asm-generic/tlb.h>
 
 #endif /* __ASM_CSKY_TLB_H */