diff options
| author |   Eric W. Biederman <ebiederm@xmission.com> | 2007-09-26 22:10:06 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:52:48 -0700 |
| commit | 0cc217e16cb8ca8ef2544363571fce94259900e0 (patch) | |
| tree | 05d7ef10fd9971fffa3f3870a4c3e66077bb1dc2 | |
| parent | [IPV4]: Remove unnecessary test for the loopback device from inetdev_destroy (diff) | |
| download | linux-dev-0cc217e16cb8ca8ef2544363571fce94259900e0.tar.xz linux-dev-0cc217e16cb8ca8ef2544363571fce94259900e0.zip | |
[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>
| -rw-r--r-- | net/ipv4/devinet.c | 4 | ||||
| -rw-r--r-- | net/ipv4/ipconfig.c | 10 | ||||
| -rw-r--r-- | net/ipv4/ipvs/ip_vs_core.c | 2 |
3 files changed, 10 insertions, 6 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 = diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 2d2e0cda0470..af5d5b39fc13 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -190,11 +190,15 @@ static int __init ic_open_devs(void) rtnl_lock(); /* bring loopback device up first */ - if (dev_change_flags(loopback_dev, loopback_dev->flags | IFF_UP) < 0) - printk(KERN_ERR "IP-Config: Failed to open %s\n", loopback_dev->name); + for_each_netdev(&init_net, dev) { + if (!(dev->flags & IFF_LOOPBACK)) + continue; + if (dev_change_flags(dev, dev->flags | IFF_UP) < 0) + printk(KERN_ERR "IP-Config: Failed to open %s\n", dev->name); + } for_each_netdev(&init_net, dev) { - if (dev == loopback_dev) + if (dev->flags & IFF_LOOPBACK) continue; if (user_dev_name[0] ? !strcmp(dev->name, user_dev_name) : (!(dev->flags & IFF_LOOPBACK) && diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c index 74503267e5d4..fbca2a2ff29f 100644 --- a/net/ipv4/ipvs/ip_vs_core.c +++ b/net/ipv4/ipvs/ip_vs_core.c @@ -961,7 +961,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff **pskb, * ... don't know why 1st test DOES NOT include 2nd (?) */ if (unlikely(skb->pkt_type != PACKET_HOST - || skb->dev == loopback_dev || skb->sk)) { + || skb->dev->flags & IFF_LOOPBACK || skb->sk)) { IP_VS_DBG(12, "packet type=%d proto=%d daddr=%d.%d.%d.%d ignored\n", skb->pkt_type, ip_hdr(skb)->protocol, |