diff options
Diffstat (limited to 'include/asm-alpha/checksum.h')
-rw-r--r-- | include/asm-alpha/checksum.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/include/asm-alpha/checksum.h b/include/asm-alpha/checksum.h deleted file mode 100644 index d3854bbf0a9e..000000000000 --- a/include/asm-alpha/checksum.h +++ /dev/null @@ -1,75 +0,0 @@ -#ifndef _ALPHA_CHECKSUM_H -#define _ALPHA_CHECKSUM_H - -#include <linux/in6.h> - -/* - * This is a version of ip_compute_csum() optimized for IP headers, - * which always checksum on 4 octet boundaries. - */ -extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -extern __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum); - -__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, unsigned short proto, - __wsum sum); - -/* - * computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -extern __wsum csum_partial(const void *buff, int len, __wsum sum); - -/* - * the same as csum_partial, but copies from src while it - * checksums - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -__wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *errp); - -__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum); - - -/* - * this routine is used for miscellaneous IP-like checksums, mainly - * in icmp.c - */ - -extern __sum16 ip_compute_csum(const void *buff, int len); - -/* - * Fold a partial checksum without adding pseudo headers - */ - -static inline __sum16 csum_fold(__wsum csum) -{ - u32 sum = (__force u32)csum; - sum = (sum & 0xffff) + (sum >> 16); - sum = (sum & 0xffff) + (sum >> 16); - return (__force __sum16)~sum; -} - -#define _HAVE_ARCH_IPV6_CSUM -extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr, - const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum); -#endif |