diff options
Diffstat (limited to 'net/sctp/output.c')
| -rw-r--r-- | net/sctp/output.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c index 73639355157..7d08f522ec8 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -49,13 +49,10 @@ #include <linux/ipv6.h> #include <linux/init.h> #include <net/inet_ecn.h> +#include <net/ip.h> #include <net/icmp.h> #include <net/net_namespace.h> -#ifndef TEST_FRAME -#include <net/tcp.h> -#endif /* TEST_FRAME (not defined) */ - #include <linux/socket.h> /* for sa_family_t */ #include <net/sock.h> @@ -367,7 +364,6 @@ 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 = __constant_cpu_to_be32(0); struct sk_buff *nskb; struct sctp_chunk *chunk, *tmp; struct sock *sk; @@ -531,17 +527,16 @@ int sctp_packet_transmit(struct sctp_packet *packet) * Note: Adler-32 is no longer applicable, as has been replaced * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>. */ - if (!(dst->dev->features & NETIF_F_NO_CSUM)) { - crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len); - crc32 = sctp_end_cksum(crc32); + if (!sctp_checksum_disable && !(dst->dev->features & NETIF_F_NO_CSUM)) { + __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 |