net: decnet: dn_nsp_in: use swap macro in dn_nsp_rx_packet

Make use of the swap macro and remove unnecessary variable tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index 7ac086d5c0c017a54534a1a986fefd88e0bcb12f..1b2120645730577de9156215bee70c9a2b9e59e2 100644 (file)
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -776,12 +776,8 @@ static int dn_nsp_rx_packet(struct net *net, struct sock *sk2,
         * Swap src & dst and look up in the normal way.
         */
        if (unlikely(cb->rt_flags & DN_RT_F_RTS)) {
-               __le16 tmp = cb->dst_port;
-               cb->dst_port = cb->src_port;
-               cb->src_port = tmp;
-               tmp = cb->dst;
-               cb->dst = cb->src;
-               cb->src = tmp;
+               swap(cb->dst_port, cb->src_port);
+               swap(cb->dst, cb->src);
        }
 
        /*