diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-21 17:19:50 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-21 17:19:50 +0200 |
| commit | eb6a12c2428d21a9f3e0f1a50e927d5fd80fc3d0 (patch) | |
| tree | 5ac6f43899648abeab1d43aad3107f664e7f13d5 /include/net/sctp/checksum.h | |
| parent | c4762aba0b1f72659aae9ce37b772ca8bd8f06f4 (diff) | |
| parent | 14b395e35d1afdd8019d11b92e28041fad591b71 (diff) | |
Merge branch 'linus' into cpus4096-for-linus
Conflicts:
net/sunrpc/svc.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/net/sctp/checksum.h')
| -rw-r--r-- | include/net/sctp/checksum.h | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h index ba75c67cb992..b799fb21519a 100644 --- a/include/net/sctp/checksum.h +++ b/include/net/sctp/checksum.h @@ -46,9 +46,14 @@ #include <net/sctp/sctp.h> #include <linux/crc32c.h> -static inline __u32 sctp_start_cksum(__u8 *buffer, __u16 length) +static inline __be32 sctp_crc32c(__be32 crc, u8 *buffer, u16 length) { - __u32 crc = ~(__u32) 0; + return (__force __be32)crc32c((__force u32)crc, buffer, length); +} + +static inline __be32 sctp_start_cksum(__u8 *buffer, __u16 length) +{ + __be32 crc = ~cpu_to_be32(0); __u8 zero[sizeof(__u32)] = {0}; /* Optimize this routine to be SCTP specific, knowing how @@ -56,23 +61,23 @@ static inline __u32 sctp_start_cksum(__u8 *buffer, __u16 length) */ /* Calculate CRC up to the checksum. */ - crc = crc32c(crc, buffer, sizeof(struct sctphdr) - sizeof(__u32)); + crc = sctp_crc32c(crc, buffer, sizeof(struct sctphdr) - sizeof(__u32)); /* Skip checksum field of the header. */ - crc = crc32c(crc, zero, sizeof(__u32)); + crc = sctp_crc32c(crc, zero, sizeof(__u32)); /* Calculate the rest of the CRC. */ - crc = crc32c(crc, &buffer[sizeof(struct sctphdr)], + crc = sctp_crc32c(crc, &buffer[sizeof(struct sctphdr)], length - sizeof(struct sctphdr)); return crc; } -static inline __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32) +static inline __be32 sctp_update_cksum(__u8 *buffer, __u16 length, __be32 crc32) { - return crc32c(crc32, buffer, length); + return sctp_crc32c(crc32, buffer, length); } -static inline __u32 sctp_end_cksum(__u32 crc32) +static inline __be32 sctp_end_cksum(__be32 crc32) { - return ntohl(~crc32); + return ~crc32; } |