netns: Use net_eq() to compare net-namespaces for optimization.
Without CONFIG_NET_NS, namespace is always &init_net.
Compiler will be able to omit namespace comparisons with this patch.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 68e84a9..6203ece 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1196,7 +1196,7 @@
ASSERT_RTNL();
- if (dev_net(in_dev->dev) != &init_net)
+ if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
for (im=in_dev->mc_list; im; im=im->next) {
@@ -1278,7 +1278,7 @@
ASSERT_RTNL();
- if (dev_net(in_dev->dev) != &init_net)
+ if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
for (ip=&in_dev->mc_list; (i=*ip)!=NULL; ip=&i->next) {
@@ -1308,7 +1308,7 @@
ASSERT_RTNL();
- if (dev_net(in_dev->dev) != &init_net)
+ if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
for (i=in_dev->mc_list; i; i=i->next)
@@ -1331,7 +1331,7 @@
{
ASSERT_RTNL();
- if (dev_net(in_dev->dev) != &init_net)
+ if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
in_dev->mc_tomb = NULL;
@@ -1357,7 +1357,7 @@
ASSERT_RTNL();
- if (dev_net(in_dev->dev) != &init_net)
+ if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
ip_mc_inc_group(in_dev, IGMP_ALL_HOSTS);
@@ -1376,7 +1376,7 @@
ASSERT_RTNL();
- if (dev_net(in_dev->dev) != &init_net)
+ if (!net_eq(dev_net(in_dev->dev), &init_net))
return;
/* Deactivate timers */
@@ -1760,7 +1760,7 @@
if (!ipv4_is_multicast(addr))
return -EINVAL;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@@ -1831,7 +1831,7 @@
u32 ifindex;
int ret = -EADDRNOTAVAIL;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@@ -1879,7 +1879,7 @@
if (!ipv4_is_multicast(addr))
return -EINVAL;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@@ -2015,7 +2015,7 @@
msf->imsf_fmode != MCAST_EXCLUDE)
return -EINVAL;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@@ -2098,7 +2098,7 @@
if (!ipv4_is_multicast(addr))
return -EINVAL;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@@ -2163,7 +2163,7 @@
if (!ipv4_is_multicast(addr))
return -EINVAL;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return -EPROTONOSUPPORT;
rtnl_lock();
@@ -2250,7 +2250,7 @@
if (inet->mc_list == NULL)
return;
- if (sock_net(sk) != &init_net)
+ if (!net_eq(sock_net(sk), &init_net))
return;
rtnl_lock();
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index b88aa9a..42065ff 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -432,7 +432,7 @@
unsigned char *sha, *tha; /* s for "source", t for "target" */
struct ic_device *d;
- if (dev_net(dev) != &init_net)
+ if (!net_eq(dev_net(dev), &init_net))
goto drop;
if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
@@ -852,7 +852,7 @@
struct ic_device *d;
int len, ext_len;
- if (dev_net(dev) != &init_net)
+ if (!net_eq(dev_net(dev), &init_net))
goto drop;
/* Perform verifications before taking the lock. */
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 033c712..c519b8d 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1124,7 +1124,7 @@
struct vif_device *v;
int ct;
- if (dev_net(dev) != &init_net)
+ if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event != NETDEV_UNREGISTER)
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index aa33a4a..432ce9d 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -477,7 +477,7 @@
{
struct net_device *dev = ptr;
- if (dev_net(dev) != &init_net)
+ if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
/* Drop any packets associated with the downed device */
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 84c26dd..0841aef 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -120,7 +120,7 @@
{
const struct net_device *dev = ptr;
- if (dev_net(dev) != &init_net)
+ if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
if (event == NETDEV_DOWN) {
