net/*: use linux/kernel.h swap()

tcp_sack_swap seems unnecessary so I pushed swap to the caller.
Also removed comment that seemed then pointless, and added include
when not already there. Compile tested.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 5 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 717584bad02e..8499da9e76a2 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -40,6 +40,7 @@
 
 #include <linux/errno.h>
 #include <linux/types.h>
+#include <linux/kernel.h>
 #include <linux/socket.h>
 #include <linux/sockios.h>
 #include <linux/net.h>
@@ -1215,16 +1216,12 @@ int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
                                         }
                                         break;
                                 } else if (minihiscore < miniscore) {
-                                        struct ipv6_saddr_score *tmp;
-
                                         if (hiscore->ifa)
                                                 in6_ifa_put(hiscore->ifa);
 
                                         in6_ifa_hold(score->ifa);
 
-                                        tmp = hiscore;
-                                        hiscore = score;
-                                        score = tmp;
+                                        swap(hiscore, score);
 
                                         /* restore our iterator */
                                         score->ifa = hiscore->ifa;