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sctp: Fix crc32c calculations on big-endian arhes.

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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>
This commit is contained in:
Vlad Yasevich 2009-01-22 14:52:23 -08:00 • committed by David S. Miller
parent c64d2a9afb
commit 9c5ff5f75d
1 changed files with 1 additions and 1 deletions
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2
include/net/sctp/checksum.h
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@ -79,5 +79,5 @@ static inline __be32 sctp_update_cksum(__u8 *buffer, __u16 length, __be32 crc32)
static inline __be32 sctp_end_cksum(__be32 crc32) static inline __be32 sctp_end_cksum(__be32 crc32)
{ {
return ~crc32; return (__force __be32)~cpu_to_le32((__force u32)crc32);
} }