1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/lib/memchr.S b/arch/arm/lib/memchr.S
new file mode 100644
index 000000000..95bedafd0
--- /dev/null
+++ b/arch/arm/lib/memchr.S
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/lib/memchr.S
+ *
+ *  Copyright (C) 1995-2000 Russell King
+ *
+ *  ASM optimised string functions
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+	.text
+	.align	5
+ENTRY(memchr)
+1:	subs	r2, r2, #1
+	bmi	2f
+	ldrb	r3, [r0], #1
+	teq	r3, r1
+	bne	1b
+	sub	r0, r0, #1
+2:	movne	r0, #0
+	ret	lr
+ENDPROC(memchr)