net: ip_append_data() optim

Compiler is not smart enough to avoid a conditional branch.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 4 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 6d2753c7ffdd..e42762023c27 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -837,10 +837,9 @@ int ip_append_data(struct sock *sk,
                 inet->cork.length = 0;
                 sk->sk_sndmsg_page = NULL;
                 sk->sk_sndmsg_off = 0;
-                if ((exthdrlen = rt->dst.header_len) != 0) {
-                        length += exthdrlen;
-                        transhdrlen += exthdrlen;
-                }
+                exthdrlen = rt->dst.header_len;
+                length += exthdrlen;
+                transhdrlen += exthdrlen;
         } else {
                 rt = (struct rtable *)inet->cork.dst;
                 if (inet->cork.flags & IPCORK_OPT)