diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h
index 7457ce082b5f..99fa69c9c3cf 100644
--- a/arch/arm64/include/asm/atomic_lse.h
+++ b/arch/arm64/include/asm/atomic_lse.h
@@ -322,7 +322,7 @@ static inline void atomic64_and(long i, atomic64_t *v)
 #define ATOMIC64_FETCH_OP_AND(name, mb, cl...)				\
 static inline long atomic64_fetch_and##name(long i, atomic64_t *v)	\
 {									\
-	register long x0 asm ("w0") = i;				\
+	register long x0 asm ("x0") = i;				\
 	register atomic64_t *x1 asm ("x1") = v;				\
 									\
 	asm volatile(ARM64_LSE_ATOMIC_INSN(				\
@@ -394,7 +394,7 @@ ATOMIC64_OP_SUB_RETURN(        , al, "memory")
 #define ATOMIC64_FETCH_OP_SUB(name, mb, cl...)				\
 static inline long atomic64_fetch_sub##name(long i, atomic64_t *v)	\
 {									\
-	register long x0 asm ("w0") = i;				\
+	register long x0 asm ("x0") = i;				\
 	register atomic64_t *x1 asm ("x1") = v;				\
 									\
 	asm volatile(ARM64_LSE_ATOMIC_INSN(				\