summaryrefslogtreecommitdiff
path: root/arch/arm/lib/csumipv6.S
blob: 3559d515144c2243844527bf6e83b616cc25a7b4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  linux/arch/arm/lib/csumipv6.S
 *
 *  Copyright (C) 1995-1998 Russell King
 */
#include <linux/linkage.h>
#include <asm/assembler.h>

		.text

ENTRY(__csum_ipv6_magic)
		str	lr, [sp, #-4]!
		adds	ip, r2, r3
		ldmia	r1, {r1 - r3, lr}
		adcs	ip, ip, r1
		adcs	ip, ip, r2
		adcs	ip, ip, r3
		adcs	ip, ip, lr
		ldmia	r0, {r0 - r3}
		adcs	r0, ip, r0
		adcs	r0, r0, r1
		adcs	r0, r0, r2
		ldr	r2, [sp, #4]
		adcs	r0, r0, r3
		adcs	r0, r0, r2
		adcs	r0, r0, #0
		ldmfd	sp!, {pc}
ENDPROC(__csum_ipv6_magic)