[IPV4]: When possible test for IFF_LOOPBACK and not dev == loopback_dev

Now that multiple loopback devices are becoming possible it makes
the code a little cleaner and more maintainable to test if a deivice
is th a loopback device by testing dev->flags & IFF_LOOPBACK instead
of dev == loopback_dev.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index e7f2b022316e..55d199e4ae21 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1059,7 +1059,7 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
                         in_dev = inetdev_init(dev);
                         if (!in_dev)
                                 return notifier_from_errno(-ENOMEM);
-                        if (dev == loopback_dev) {
+                        if (dev->flags & IFF_LOOPBACK) {
                                 IN_DEV_CONF_SET(in_dev, NOXFRM, 1);
                                 IN_DEV_CONF_SET(in_dev, NOPOLICY, 1);
                         }
@@ -1075,7 +1075,7 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
         case NETDEV_UP:
                 if (dev->mtu < 68)
                         break;
-                if (dev == loopback_dev) {
+                if (dev->flags & IFF_LOOPBACK) {
                         struct in_ifaddr *ifa;
                         if ((ifa = inet_alloc_ifa()) != NULL) {
                                 ifa->ifa_local =