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-rw-r--r--net/sctp/output.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 2d65b7a7330..07d58903a74 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -367,7 +367,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
struct sctp_transport *tp = packet->transport;
struct sctp_association *asoc = tp->asoc;
struct sctphdr *sh;
- __be32 crc32 = cpu_to_be32(0);
struct sk_buff *nskb;
struct sctp_chunk *chunk, *tmp;
struct sock *sk;
@@ -532,16 +531,15 @@ int sctp_packet_transmit(struct sctp_packet *packet)
* by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
*/
if (!sctp_checksum_disable && !(dst->dev->features & NETIF_F_NO_CSUM)) {
- crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
- crc32 = sctp_end_cksum(crc32);
+ __u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
+
+ /* 3) Put the resultant value into the checksum field in the
+ * common header, and leave the rest of the bits unchanged.
+ */
+ sh->checksum = sctp_end_cksum(crc32);
} else
nskb->ip_summed = CHECKSUM_UNNECESSARY;
- /* 3) Put the resultant value into the checksum field in the
- * common header, and leave the rest of the bits unchanged.
- */
- sh->checksum = crc32;
-
/* IP layer ECN support
* From RFC 2481
* "The ECN-Capable Transport (ECT) bit would be set by the