[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.
Introduce per-net_device inlines: dev_net(), dev_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8995488..d1de9ec 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -335,7 +335,7 @@
rwlock_init(&ndev->lock);
ndev->dev = dev;
- memcpy(&ndev->cnf, dev->nd_net->ipv6.devconf_dflt, sizeof(ndev->cnf));
+ memcpy(&ndev->cnf, dev_net(dev)->ipv6.devconf_dflt, sizeof(ndev->cnf));
ndev->cnf.mtu6 = dev->mtu;
ndev->cnf.sysctl = NULL;
ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
@@ -561,7 +561,7 @@
write_lock(&addrconf_hash_lock);
/* Ignore adding duplicate addresses on an interface */
- if (ipv6_chk_same_addr(idev->dev->nd_net, addr, idev->dev)) {
+ if (ipv6_chk_same_addr(dev_net(idev->dev), addr, idev->dev)) {
ADBG(("ipv6_add_addr: already assigned\n"));
err = -EEXIST;
goto out;
@@ -751,7 +751,7 @@
if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) {
struct in6_addr prefix;
struct rt6_info *rt;
- struct net *net = ifp->idev->dev->nd_net;
+ struct net *net = dev_net(ifp->idev->dev);
ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len);
rt = rt6_lookup(net, &prefix, NULL, ifp->idev->dev->ifindex, 1);
@@ -1044,7 +1044,7 @@
{
struct ipv6_saddr_score scores[2],
*score = &scores[0], *hiscore = &scores[1];
- struct net *net = dst_dev->nd_net;
+ struct net *net = dev_net(dst_dev);
struct ipv6_saddr_dst dst;
struct net_device *dev;
int dst_type;
@@ -1217,7 +1217,7 @@
read_lock_bh(&addrconf_hash_lock);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
- if (ifp->idev->dev->nd_net != net)
+ if (dev_net(ifp->idev->dev) != net)
continue;
if (ipv6_addr_equal(&ifp->addr, addr) &&
!(ifp->flags&IFA_F_TENTATIVE)) {
@@ -1239,7 +1239,7 @@
u8 hash = ipv6_addr_hash(addr);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
- if (ifp->idev->dev->nd_net != net)
+ if (dev_net(ifp->idev->dev) != net)
continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev)
@@ -1257,7 +1257,7 @@
read_lock_bh(&addrconf_hash_lock);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
- if (ifp->idev->dev->nd_net != net)
+ if (dev_net(ifp->idev->dev) != net)
continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev ||
@@ -1559,7 +1559,7 @@
.fc_expires = expires,
.fc_dst_len = plen,
.fc_flags = RTF_UP | flags,
- .fc_nlinfo.nl_net = dev->nd_net,
+ .fc_nlinfo.nl_net = dev_net(dev),
};
ipv6_addr_copy(&cfg.fc_dst, pfx);
@@ -1586,7 +1586,7 @@
.fc_ifindex = dev->ifindex,
.fc_dst_len = 8,
.fc_flags = RTF_UP,
- .fc_nlinfo.nl_net = dev->nd_net,
+ .fc_nlinfo.nl_net = dev_net(dev),
};
ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);
@@ -1603,7 +1603,7 @@
.fc_ifindex = dev->ifindex,
.fc_dst_len = 96,
.fc_flags = RTF_UP | RTF_NONEXTHOP,
- .fc_nlinfo.nl_net = dev->nd_net,
+ .fc_nlinfo.nl_net = dev_net(dev),
};
/* prefix length - 96 bits "::d.d.d.d" */
@@ -1704,7 +1704,7 @@
if (pinfo->onlink) {
struct rt6_info *rt;
- rt = rt6_lookup(dev->nd_net, &pinfo->prefix, NULL,
+ rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL,
dev->ifindex, 1);
if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
@@ -1748,7 +1748,7 @@
ok:
- ifp = ipv6_get_ifaddr(dev->nd_net, &addr, dev, 1);
+ ifp = ipv6_get_ifaddr(dev_net(dev), &addr, dev, 1);
if (ifp == NULL && valid_lft) {
int max_addresses = in6_dev->cnf.max_addresses;
@@ -2071,7 +2071,7 @@
struct inet6_ifaddr * ifp;
struct in6_addr addr;
struct net_device *dev;
- struct net *net = idev->dev->nd_net;
+ struct net *net = dev_net(idev->dev);
int scope;
ASSERT_RTNL();
@@ -2261,7 +2261,7 @@
static void ip6_tnl_add_linklocal(struct inet6_dev *idev)
{
struct net_device *link_dev;
- struct net *net = idev->dev->nd_net;
+ struct net *net = dev_net(idev->dev);
/* first try to inherit the link-local address from the link device */
if (idev->dev->iflink &&
@@ -2442,7 +2442,7 @@
{
struct inet6_dev *idev;
struct inet6_ifaddr *ifa, **bifa;
- struct net *net = dev->nd_net;
+ struct net *net = dev_net(dev);
int i;
ASSERT_RTNL();
@@ -2771,7 +2771,7 @@
for (state->bucket = 0; state->bucket < IN6_ADDR_HSIZE; ++state->bucket) {
ifa = inet6_addr_lst[state->bucket];
- while (ifa && ifa->idev->dev->nd_net != net)
+ while (ifa && dev_net(ifa->idev->dev) != net)
ifa = ifa->lst_next;
if (ifa)
break;
@@ -2787,7 +2787,7 @@
ifa = ifa->lst_next;
try_again:
if (ifa) {
- if (ifa->idev->dev->nd_net != net) {
+ if (dev_net(ifa->idev->dev) != net) {
ifa = ifa->lst_next;
goto try_again;
}
@@ -2905,7 +2905,7 @@
u8 hash = ipv6_addr_hash(addr);
read_lock_bh(&addrconf_hash_lock);
for (ifp = inet6_addr_lst[hash]; ifp; ifp = ifp->lst_next) {
- if (ifp->idev->dev->nd_net != net)
+ if (dev_net(ifp->idev->dev) != net)
continue;
if (ipv6_addr_cmp(&ifp->addr, addr) == 0 &&
(ifp->flags & IFA_F_HOMEADDRESS)) {
@@ -3469,7 +3469,7 @@
static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
{
struct sk_buff *skb;
- struct net *net = ifa->idev->dev->nd_net;
+ struct net *net = dev_net(ifa->idev->dev);
int err = -ENOBUFS;
skb = nlmsg_new(inet6_ifaddr_msgsize(), GFP_ATOMIC);
@@ -3675,7 +3675,7 @@
void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
{
struct sk_buff *skb;
- struct net *net = idev->dev->nd_net;
+ struct net *net = dev_net(idev->dev);
int err = -ENOBUFS;
skb = nlmsg_new(inet6_if_nlmsg_size(), GFP_ATOMIC);
@@ -3745,7 +3745,7 @@
struct prefix_info *pinfo)
{
struct sk_buff *skb;
- struct net *net = idev->dev->nd_net;
+ struct net *net = dev_net(idev->dev);
int err = -ENOBUFS;
skb = nlmsg_new(inet6_prefix_nlmsg_size(), GFP_ATOMIC);
@@ -4157,7 +4157,7 @@
NET_IPV6_NEIGH, "ipv6",
&ndisc_ifinfo_sysctl_change,
NULL);
- __addrconf_sysctl_register(idev->dev->nd_net, idev->dev->name,
+ __addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
idev->dev->ifindex, idev, &idev->cnf);
}