| /* 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) |