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authorVlad Yasevich <vladislav.yasevich@hp.com>2009-01-22 14:52:23 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-02-17 09:28:52 -0800
commit3d137641bbf5fcd5f45ceba31ea9f7d6f01fb22d (patch)
treed5dd3facaffde86ecea476472653da30257b53a3 /include
parent489a11f8d0e81f0422752bddf3826543d243952e (diff)
sctp: Fix crc32c calculations on big-endian arhes.
[ Upstream commit 9c5ff5f75d0d0a1c7928ecfae3f38418b51a88e3 ] 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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
-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 b799fb21519a..2fec3c366e81 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);
}