1/*
 2 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
 3 *
 4 * This program is free software; you can redistribute it and/or modify
 5 * it under the terms of the GNU General Public License version 2 and
 6 * only version 2 as published by the Free Software Foundation.
 7 *
 8 * This program is distributed in the hope that it will be useful,
 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
16 * 02110-1301, USA.
17 */
18
19#ifndef _ASM_CHECKSUM_H
20#define _ASM_CHECKSUM_H
21
22#define do_csum	do_csum
23unsigned int do_csum(const void *voidptr, int len);
24
25/*
26 * the same as csum_partial, but copies from src while it
27 * checksums
28 *
29 * here even more important to align src and dst on a 32-bit (or even
30 * better 64-bit) boundary
31 */
32#define csum_partial_copy_nocheck csum_partial_copy_nocheck
33__wsum csum_partial_copy_nocheck(const void *src, void *dst,
34					int len, __wsum sum);
35
36/*
37 * computes the checksum of the TCP/UDP pseudo-header
38 * returns a 16-bit checksum, already complemented
39 */
40#define csum_tcpudp_nofold csum_tcpudp_nofold
41__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
42			  __u32 len, __u8 proto, __wsum sum);
43
44#define csum_tcpudp_magic csum_tcpudp_magic
45__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
46			  __u32 len, __u8 proto, __wsum sum);
47
48#include <asm-generic/checksum.h>
49
50#endif

 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
10unsigned int do_csum(const void *voidptr, int len);
 
 
 
 
 
 
 
 
 
 
 
11
12/*
13 * computes the checksum of the TCP/UDP pseudo-header
14 * returns a 16-bit checksum, already complemented
15 */
16#define csum_tcpudp_nofold csum_tcpudp_nofold
17__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
18			  __u32 len, __u8 proto, __wsum sum);
19
20#define csum_tcpudp_magic csum_tcpudp_magic
21__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
22			  __u32 len, __u8 proto, __wsum sum);
23
24#include <asm-generic/checksum.h>
25
26#endif