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authorMike Frysinger <vapier@gentoo.org>2009-06-13 07:42:58 -0400
committerMike Frysinger <vapier@gentoo.org>2009-12-15 00:13:32 -0500
commitddf9ddacef0989fdeb22e182212a232488f0f3ad (patch)
treec2e2ef3b0a65ec41fd8b20cae5b10ec9ace3b158 /arch/blackfin/include
parent3ea6b3d0e6d0ffd91c0f8cadeb69b7133c038b32 (diff)
downloadlinux-ddf9ddacef0989fdeb22e182212a232488f0f3ad.tar.gz
Blackfin: convert to generic checksum code
The Blackfin port only implemented an optimized version of the csum_tcpudp_nofold function, so convert everything else to the new generic code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/include')
-rw-r--r--arch/blackfin/include/asm/checksum.h70
1 files changed, 4 insertions, 66 deletions
diff --git a/arch/blackfin/include/asm/checksum.h b/arch/blackfin/include/asm/checksum.h
index a23415be0de..623cc7fb00b 100644
--- a/arch/blackfin/include/asm/checksum.h
+++ b/arch/blackfin/include/asm/checksum.h
@@ -9,63 +9,12 @@
#define _BFIN_CHECKSUM_H
/*
- * 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
- */
-__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(const void *src, void *dst,
- int len, __wsum sum);
-
-/*
- * the same as csum_partial_copy, but copies from user space.
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-
-extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
- int len, __wsum sum, int *csum_err);
-
-#define csum_partial_copy_nocheck(src, dst, len, sum) \
- csum_partial_copy((src), (dst), (len), (sum))
-
-__sum16 ip_fast_csum(unsigned char *iph, unsigned int ihl);
-
-/*
- * Fold a partial checksum
- */
-
-static inline __sum16 csum_fold(__wsum sum)
-{
- while (sum >> 16)
- sum = (sum & 0xffff) + (sum >> 16);
- return ((~(sum << 16)) >> 16);
-}
-
-/*
* computes the checksum of the TCP/UDP pseudo-header
* returns a 16-bit checksum, already complemented
*/
static inline __wsum
-csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+__csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
unsigned short proto, __wsum sum)
{
unsigned int carry;
@@ -88,19 +37,8 @@ csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
return (sum);
}
+#define csum_tcpudp_nofold __csum_tcpudp_nofold
-static inline __sum16
-csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
- unsigned short proto, __wsum sum)
-{
- return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-
-extern __sum16 ip_compute_csum(const void *buff, int len);
+#include <asm-generic/checksum.h>
-#endif /* _BFIN_CHECKSUM_H */
+#endif