[PATCH] netfilter: ipset: ip_set_bitmap_port: use swap macro in bitmap_port_create

[Gustavo A. R. Silva]

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 <garsi...@embeddedor.com>
---
 net/netfilter/ipset/ip_set_bitmap_port.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c 
b/net/netfilter/ipset/ip_set_bitmap_port.c
index 7f9bbd7..b561ca8 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -238,12 +238,8 @@ bitmap_port_create(struct net *net, struct ip_set *set, 
struct nlattr *tb[],
 
        first_port = ip_set_get_h16(tb[IPSET_ATTR_PORT]);
        last_port = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
-       if (first_port > last_port) {
-               u16 tmp = first_port;
-
-               first_port = last_port;
-               last_port = tmp;
-       }
+       if (first_port > last_port)
+               swap(first_port, last_port);
 
        elements = last_port - first_port + 1;
        set->dsize = ip_set_elem_len(set, tb, 0, 0);
-- 
2.7.4