[PATCH net-next 6/9] sctp: factor out sctp_sendmsg_update_sinfo from sctp_sendmsg

[Xin Long]

This patch is to move the codes for trying to get sinfo from
asoc into sctp_sendmsg_update_sinfo.

Signed-off-by: Xin Long <lucien....@gmail.com>
---
 net/sctp/socket.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index bf089e5..bd1a657 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1892,6 +1892,21 @@ static union sctp_addr *sctp_sendmsg_get_daddr(struct 
sock *sk,
        return daddr;
 }
 
+static void sctp_sendmsg_update_sinfo(struct sctp_association *asoc,
+                                     struct sctp_sndrcvinfo *sinfo,
+                                     struct sctp_cmsgs *cmsgs)
+{
+       if (!cmsgs->srinfo && !cmsgs->sinfo) {
+               sinfo->sinfo_stream = asoc->default_stream;
+               sinfo->sinfo_ppid = asoc->default_ppid;
+               sinfo->sinfo_context = asoc->default_context;
+               sinfo->sinfo_assoc_id = sctp_assoc2id(asoc);
+       }
+
+       if (!cmsgs->srinfo)
+               sinfo->sinfo_timetolive = asoc->default_timetolive;
+}
+
 static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
 {
        struct sctp_endpoint *ep = sctp_sk(sk)->ep;
@@ -1951,15 +1966,8 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr 
*msg, size_t msg_len)
                new_asoc = asoc;
        }
 
-       if (!cmsgs.srinfo && !cmsgs.sinfo) {
-               sinfo->sinfo_stream = asoc->default_stream;
-               sinfo->sinfo_ppid = asoc->default_ppid;
-               sinfo->sinfo_context = asoc->default_context;
-               sinfo->sinfo_assoc_id = sctp_assoc2id(asoc);
-       }
-
-       if (!cmsgs.srinfo)
-               sinfo->sinfo_timetolive = asoc->default_timetolive;
+       /* Update snd_info with the asoc */
+       sctp_sendmsg_update_sinfo(asoc, sinfo, &cmsgs);
 
        /* If an address is passed with the sendto/sendmsg call, it is used
         * to override the primary destination address in the TCP model, or
-- 
2.1.0