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-rw-r--r--net/sctp/output.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 73639355157e..7d08f522ec84 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* Note: Adler-32 is no longer applicable, as has been replaced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