1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. 4 */ 5 6 #ifndef _ASM_CHECKSUM_H 7 #define _ASM_CHECKSUM_H 8 9 #define do_csum do_csum 10 unsigned int do_csum(const void *voidptr, int len); 11 12 /* 13 * the same as csum_partial, but copies from src while it 14 * checksums 15 * 16 * here even more important to align src and dst on a 32-bit (or even 17 * better 64-bit) boundary 18 */ 19 #define csum_partial_copy_nocheck csum_partial_copy_nocheck 20 __wsum csum_partial_copy_nocheck(const void *src, void *dst, 21 int len, __wsum sum); 22 23 /* 24 * computes the checksum of the TCP/UDP pseudo-header 25 * returns a 16-bit checksum, already complemented 26 */ 27 #define csum_tcpudp_nofold csum_tcpudp_nofold 28 __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, 29 __u32 len, __u8 proto, __wsum sum); 30 31 #define csum_tcpudp_magic csum_tcpudp_magic 32 __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, 33 __u32 len, __u8 proto, __wsum sum); 34 35 #include <asm-generic/checksum.h> 36 37 #endif 38