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(unsigned long saddr, unsigned long daddr, 42 unsigned short len, unsigned short proto, __wsum sum); 43 44#define csum_tcpudp_magic csum_tcpudp_magic 45__sum16 csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, 46 unsigned short len, unsigned short proto, __wsum sum); 47 48#include <asm-generic/checksum.h> 49 50#endif 51