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Diffstat (limited to 'include/asm-mn10300/checksum.h')
-rw-r--r-- | include/asm-mn10300/checksum.h | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/include/asm-mn10300/checksum.h b/include/asm-mn10300/checksum.h deleted file mode 100644 index 9fb2a8d8826..00000000000 --- a/include/asm-mn10300/checksum.h +++ /dev/null @@ -1,86 +0,0 @@ -/* MN10300 Optimised checksumming code - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_CHECKSUM_H -#define _ASM_CHECKSUM_H - -extern __wsum csum_partial(const void *buff, int len, __wsum sum); -extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum); -extern __wsum csum_partial_copy_from_user(const void *src, void *dst, - int len, __wsum sum, - int *err_ptr); -extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); -extern __wsum csum_partial(const void *buff, int len, __wsum sum); -extern __sum16 ip_compute_csum(const void *buff, int len); - -#define csum_partial_copy_fromuser csum_partial_copy -extern __wsum csum_partial_copy(const void *src, void *dst, int len, - __wsum sum); - -static inline __sum16 csum_fold(__wsum sum) -{ - asm( - " add %1,%0 \n" - " addc 0xffff,%0 \n" - : "=r" (sum) - : "r" (sum << 16), "0" (sum & 0xffff0000) - : "cc" - ); - return (~sum) >> 16; -} - -static inline __wsum csum_tcpudp_nofold(unsigned long saddr, - unsigned long daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - __wsum tmp; - - tmp = (__wsum) ntohs(len) << 16; - tmp += (__wsum) proto << 8; - - asm( - " add %1,%0 \n" - " addc %2,%0 \n" - " addc %3,%0 \n" - " addc 0,%0 \n" - : "=r" (sum) - : "r" (daddr), "r"(saddr), "r"(tmp), "0"(sum) - : "cc" - ); - return sum; -} - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(unsigned long saddr, - unsigned long daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); -} - -#undef _HAVE_ARCH_IPV6_CSUM - -/* - * Copy and checksum to user - */ -#define HAVE_CSUM_COPY_USER -extern __wsum csum_and_copy_to_user(const void *src, void *dst, int len, - __wsum sum, int *err_ptr); - - -#endif /* _ASM_CHECKSUM_H */ |