--- zzzz-none-000/linux-5.4.213/arch/mips/include/asm/string.h	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/arch/mips/include/asm/string.h	2024-08-14 09:01:30.000000000 +0000
@@ -19,4 +19,42 @@
 #define __HAVE_ARCH_MEMMOVE
 extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
 
+#ifndef __ZBOOT__
+#define memset(__s, __c, len)					\
+({								\
+	size_t __len = (len);					\
+	void *__ret;						\
+	if (__builtin_constant_p(len) && __len >= 64)		\
+		__ret = memset((__s), (__c), __len);		\
+	else							\
+		__ret = __builtin_memset((__s), (__c), __len);	\
+	__ret;							\
+})
+
+#define memcpy(dst, src, len)					\
+({								\
+	size_t __len = (len);					\
+	void *__ret;						\
+	if (__builtin_constant_p(len) && __len >= 64)		\
+		__ret = memcpy((dst), (src), __len);		\
+	else							\
+		__ret = __builtin_memcpy((dst), (src), __len);	\
+	__ret;							\
+})
+
+#define memmove(dst, src, len)					\
+({								\
+	size_t __len = (len);					\
+	void *__ret;						\
+	if (__builtin_constant_p(len) && __len >= 64)		\
+		__ret = memmove((dst), (src), __len);		\
+	else							\
+		__ret = __builtin_memmove((dst), (src), __len);	\
+	__ret;							\
+})
+
+#define __HAVE_ARCH_MEMCMP
+#define memcmp(src1, src2, len) __builtin_memcmp((src1), (src2), (len))
+#endif
+
 #endif /* _ASM_STRING_H */