[mirror_ubuntu-jammy-kernel.git] / arch / arm / lib / memchr.S

/* 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)
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
1da177e4 LT	2	/*
	3	* linux/arch/arm/lib/memchr.S
	4	*
	5	* Copyright (C) 1995-2000 Russell King
	6	*
1da177e4 LT	7	* ASM optimised string functions
	8	*/
	9	#include <linux/linkage.h>
	10	#include <asm/assembler.h>
	11
	12	.text
	13	.align 5
	14	ENTRY(memchr)
	15	1: subs r2, r2, #1
	16	bmi 2f
	17	ldrb r3, [r0], #1
	18	teq r3, r1
	19	bne 1b
	20	sub r0, r0, #1
	21	2: movne r0, #0
6ebbf2ce	22	ret lr
93ed3970	23	ENDPROC(memchr)