diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h
index 08e0327a1719ed1a6817c4aefc5b8e1f678cb647..c12a3ca42d61ac86b76fc93220ec3801d37e8b97 100644
--- a/arch/arm64/include/asm/string.h
+++ b/arch/arm64/include/asm/string.h
@@ -36,8 +36,8 @@ extern void *memcpy(void *, const void *, __kernel_size_t);
 extern void *__memcpy(void *, const void *, __kernel_size_t);
 
 #define __HAVE_ARCH_MEMCPY_MC
-extern unsigned long *memcpy_mcs(void *, const void *, __kernel_size_t);
-extern unsigned long *__memcpy_mcs(void *, const void *, __kernel_size_t);
+extern unsigned long memcpy_mcs(void *, const void *, __kernel_size_t);
+extern unsigned long __memcpy_mcs(void *, const void *, __kernel_size_t);
 
 #define __HAVE_ARCH_MEMMOVE
 extern void *memmove(void *, const void *, __kernel_size_t);