1
2#ifndef _ASM_IA64_CHECKSUM_H
3#define _ASM_IA64_CHECKSUM_H
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14extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
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20extern __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
21 __u32 len, __u8 proto, __wsum sum);
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23extern __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
24 __u32 len, __u8 proto, __wsum sum);
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38extern __wsum csum_partial(const void *buff, int len, __wsum sum);
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44extern __sum16 ip_compute_csum(const void *buff, int len);
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49static inline __sum16 csum_fold(__wsum csum)
50{
51 u32 sum = (__force u32)csum;
52 sum = (sum & 0xffff) + (sum >> 16);
53 sum = (sum & 0xffff) + (sum >> 16);
54 return (__force __sum16)~sum;
55}
56
57#define _HAVE_ARCH_IPV6_CSUM 1
58struct in6_addr;
59extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
60 const struct in6_addr *daddr,
61 __u32 len, __u8 proto, __wsum csum);
62
63#endif
64