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authorVlad Yasevich <vladislav.yasevich@hp.com>2009-01-22 14:52:23 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-22 14:52:23 -0800
commit9c5ff5f75d0d0a1c7928ecfae3f38418b51a88e3 (patch)
tree5211a9794d3d8104b19d1dd544248755f5faf076
parentc64d2a9afbccd0aecb122d108770a407fe7b7e3f (diff)
sctp: Fix crc32c calculations on big-endian arhes.
crc32c algorithm provides a byteswaped result. On little-endian arches, the result ends up in big-endian/network byte order. On big-endinan arches, the result ends up in little-endian order and needs to be byte swapped again. Thus calling cpu_to_le32 gives the right output. Tested-by: Jukka Taimisto <jukka.taimisto@mail.suomi.net> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/sctp/checksum.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index b799fb21519..2fec3c366e8 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -79,5 +79,5 @@ static inline __be32 sctp_update_cksum(__u8 *buffer, __u16 length, __be32 crc32)
static inline __be32 sctp_end_cksum(__be32 crc32)
{
- return ~crc32;
+ return (__force __be32)~cpu_to_le32((__force u32)crc32);
}