1 files changed, 26 insertions, 21 deletions
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index 857d364b9888..79e9695dc13e 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -21,6 +21,7 @@ extern void *__memcpy(void *to, const void *from, size_t len);
 #define __HAVE_ARCH_MEMSET
 void *memset(void *s, int c, size_t n);
 void *__memset(void *s, int c, size_t n);
+KCFI_REFERENCE(__memset);
 
 /*
  * KMSAN needs to instrument as much code as possible. Use C versions of
@@ -30,43 +31,47 @@ void *__memset(void *s, int c, size_t n);
 #define __HAVE_ARCH_MEMSET16
 static inline void *memset16(uint16_t *s, uint16_t v, size_t n)
 {
-	long d0, d1;
-	asm volatile("rep\n\t"
-		     "stosw"
-		     : "=&c" (d0), "=&D" (d1)
-		     : "a" (v), "1" (s), "0" (n)
-		     : "memory");
-	return s;
+	const __auto_type s0 = s;
+	asm volatile (
+		"rep stosw"
+		: "+D" (s), "+c" (n)
+		: "a" (v)
+		: "memory"
+	);
+	return s0;
 }
 
 #define __HAVE_ARCH_MEMSET32
 static inline void *memset32(uint32_t *s, uint32_t v, size_t n)
 {
-	long d0, d1;
-	asm volatile("rep\n\t"
-		     "stosl"
-		     : "=&c" (d0), "=&D" (d1)
-		     : "a" (v), "1" (s), "0" (n)
-		     : "memory");
-	return s;
+	const __auto_type s0 = s;
+	asm volatile (
+		"rep stosl"
+		: "+D" (s), "+c" (n)
+		: "a" (v)
+		: "memory"
+	);
+	return s0;
 }
 
 #define __HAVE_ARCH_MEMSET64
 static inline void *memset64(uint64_t *s, uint64_t v, size_t n)
 {
-	long d0, d1;
-	asm volatile("rep\n\t"
-		     "stosq"
-		     : "=&c" (d0), "=&D" (d1)
-		     : "a" (v), "1" (s), "0" (n)
-		     : "memory");
-	return s;
+	const __auto_type s0 = s;
+	asm volatile (
+		"rep stosq"
+		: "+D" (s), "+c" (n)
+		: "a" (v)
+		: "memory"
+	);
+	return s0;
 }
 #endif
 
 #define __HAVE_ARCH_MEMMOVE
 void *memmove(void *dest, const void *src, size_t count);
 void *__memmove(void *dest, const void *src, size_t count);
+KCFI_REFERENCE(__memmove);
 
 int memcmp(const void *cs, const void *ct, size_t count);
 size_t strlen(const char *s);