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| author | Vlad Yasevich <vladislav.yasevich@hp.com> | 2009-01-22 14:52:23 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-02-17 09:46:19 -0800 |
| commit | d8e466e2cc8e9e4e033c9994f2d598276d60d409 (patch) | |
| tree | f9eb44fe4e24047d889ff1dda6ac14e45c93ea47 /include | |
| parent | 88c1b28bebdb058813e38856fe7b52a0dfbe4cca (diff) | |
| download | lwn-d8e466e2cc8e9e4e033c9994f2d598276d60d409.tar.gz lwn-d8e466e2cc8e9e4e033c9994f2d598276d60d409.zip | |
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.h | 2 |
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); } |