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
23 unsigned 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
51