RxRPC: Error handling for rxrpc_alloc_connection()
[safe/jmp/linux-2.6] / net / sctp / output.c
index c3f417f..7d08f52 100644 (file)
 #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>
 
@@ -324,14 +321,16 @@ append:
        switch (chunk->chunk_hdr->type) {
            case SCTP_CID_DATA:
                retval = sctp_packet_append_data(packet, chunk);
+               if (SCTP_XMIT_OK != retval)
+                       goto finish;
                /* Disallow SACK bundling after DATA. */
                packet->has_sack = 1;
                /* Disallow AUTH bundling after DATA */
                packet->has_auth = 1;
                /* Let it be knows that packet has DATA in it */
                packet->has_data = 1;
-               if (SCTP_XMIT_OK != retval)
-                       goto finish;
+               /* timestamp the chunk for rtx purposes */
+               chunk->sent_at = jiffies;
                break;
            case SCTP_CID_COOKIE_ECHO:
                packet->has_cookie_echo = 1;
@@ -365,7 +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;
@@ -470,7 +468,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
                        } else
                                chunk->resent = 1;
 
-                       chunk->sent_at = jiffies;
                        has_data = 1;
                }
 
@@ -530,17 +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         * Note: Adler-32 is no longer applicable, as has been replaced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