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Diffstat (limited to 'arch/arm/lib/csumipv6.S')
| -rw-r--r-- | arch/arm/lib/csumipv6.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/lib/csumipv6.S b/arch/arm/lib/csumipv6.S new file mode 100644 index 000000000..3559d5151 --- /dev/null +++ b/arch/arm/lib/csumipv6.S @@ -0,0 +1,30 @@ +/* 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) + |