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caab277b1d
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
35 lines
562 B
ArmAsm
35 lines
562 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Based on arch/arm/lib/memchr.S
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*
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* Copyright (C) 1995-2000 Russell King
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* Copyright (C) 2013 ARM Ltd.
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*/
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#include <linux/linkage.h>
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#include <asm/assembler.h>
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/*
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* Find a character in an area of memory.
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*
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* Parameters:
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* x0 - buf
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* x1 - c
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* x2 - n
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* Returns:
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* x0 - address of first occurrence of 'c' or 0
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*/
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WEAK(memchr)
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and w1, w1, #0xff
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1: subs x2, x2, #1
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b.mi 2f
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ldrb w3, [x0], #1
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cmp w3, w1
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b.ne 1b
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sub x0, x0, #1
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ret
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2: mov x0, #0
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ret
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ENDPIPROC(memchr)
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EXPORT_SYMBOL_NOKASAN(memchr)
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