diff options
Diffstat (limited to 'include/net/checksum.h')
| -rw-r--r-- | include/net/checksum.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/include/net/checksum.h b/include/net/checksum.h index 87cb1903640d..6465bae80a4f 100644 --- a/include/net/checksum.h +++ b/include/net/checksum.h @@ -122,9 +122,7 @@ static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum) static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to) { - __be32 diff[] = { ~from, to }; - - *sum = csum_fold(csum_partial(diff, sizeof(diff), ~csum_unfold(*sum))); + *sum = csum_fold(csum_add(csum_sub(~csum_unfold(*sum), from), to)); } /* Implements RFC 1624 (Incremental Internet Checksum) |