diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-22 17:12:37 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-22 17:12:37 +1000 |
commit | 8725f25acc656c1522d48a6746055099efdaca4c (patch) | |
tree | e241424fa58178ed6c2a95a4eb931ea83dbea33c /include/net/sctp/checksum.h | |
parent | c69cccc95fe4b90dde5fe33e6a3b77880b534fa4 (diff) | |
parent | 93ded9b8fd42abe2c3607097963d8de6ad9117eb (diff) |
Merge commit 'origin/master'
Manually fixed up:
drivers/net/fs_enet/fs_enet-main.c
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 ba75c67cb99..b799fb21519 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; } |