ipv6/addrconf: common code located

$ codiff net/ipv6/addrconf.o net/ipv6/addrconf.o.new
net/ipv6/addrconf.c:
 addrconf_notify | -267
1 function changed, 267 bytes removed

net/ipv6/addrconf.c:
 add_addr |  +86
1 function changed, 86 bytes added

net/ipv6/addrconf.o.new:
2 functions changed, 86 bytes added, 267 bytes removed, diff: -181

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

1 files changed, 18 insertions, 27 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f9afb452249c..03e2a1ad71e9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2224,10 +2224,24 @@ int addrconf_del_ifaddr(struct net *net, void __user *arg)
         return err;
 }
 
+static void add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
+                     int plen, int scope)
+{
+        struct inet6_ifaddr *ifp;
+
+        ifp = ipv6_add_addr(idev, addr, plen, scope, IFA_F_PERMANENT);
+        if (!IS_ERR(ifp)) {
+                spin_lock_bh(&ifp->lock);
+                ifp->flags &= ~IFA_F_TENTATIVE;
+                spin_unlock_bh(&ifp->lock);
+                ipv6_ifa_notify(RTM_NEWADDR, ifp);
+                in6_ifa_put(ifp);
+        }
+}
+
 #if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
 static void sit_add_v4_addrs(struct inet6_dev *idev)
 {
-        struct inet6_ifaddr * ifp;
         struct in6_addr addr;
         struct net_device *dev;
         struct net *net = dev_net(idev->dev);
@@ -2246,14 +2260,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
         }
 
         if (addr.s6_addr32[3]) {
-                ifp = ipv6_add_addr(idev, &addr, 128, scope, IFA_F_PERMANENT);
-                if (!IS_ERR(ifp)) {
-                        spin_lock_bh(&ifp->lock);
-                        ifp->flags &= ~IFA_F_TENTATIVE;
-                        spin_unlock_bh(&ifp->lock);
-                        ipv6_ifa_notify(RTM_NEWADDR, ifp);
-                        in6_ifa_put(ifp);
-                }
+                add_addr(idev, &addr, 128, scope);
                 return;
         }
 
@@ -2281,15 +2288,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
                                 else
                                         plen = 96;
 
-                                ifp = ipv6_add_addr(idev, &addr, plen, flag,
-                                                    IFA_F_PERMANENT);
-                                if (!IS_ERR(ifp)) {
-                                        spin_lock_bh(&ifp->lock);
-                                        ifp->flags &= ~IFA_F_TENTATIVE;
-                                        spin_unlock_bh(&ifp->lock);
-                                        ipv6_ifa_notify(RTM_NEWADDR, ifp);
-                                        in6_ifa_put(ifp);
-                                }
+                                add_addr(idev, &addr, plen, flag);
                         }
                 }
         }
@@ -2299,7 +2298,6 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 static void init_loopback(struct net_device *dev)
 {
         struct inet6_dev  *idev;
-        struct inet6_ifaddr * ifp;
 
         /* ::1 */
 
@@ -2310,14 +2308,7 @@ static void init_loopback(struct net_device *dev)
                 return;
         }
 
-        ifp = ipv6_add_addr(idev, &in6addr_loopback, 128, IFA_HOST, IFA_F_PERMANENT);
-        if (!IS_ERR(ifp)) {
-                spin_lock_bh(&ifp->lock);
-                ifp->flags &= ~IFA_F_TENTATIVE;
-                spin_unlock_bh(&ifp->lock);
-                ipv6_ifa_notify(RTM_NEWADDR, ifp);
-                in6_ifa_put(ifp);
-        }
+        add_addr(idev, &in6addr_loopback, 128, IFA_HOST);
 }
 
 static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr)