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Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c334
1 files changed, 152 insertions, 182 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 1fd0a3d775d2..de7a194a64ab 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -481,9 +481,8 @@ static void addrconf_forward_change(struct net *net, __s32 newf)
struct net_device *dev;
struct inet6_dev *idev;
- read_lock(&dev_base_lock);
- for_each_netdev(net, dev) {
- rcu_read_lock();
+ rcu_read_lock();
+ for_each_netdev_rcu(net, dev) {
idev = __in6_dev_get(dev);
if (idev) {
int changed = (!idev->cnf.forwarding) ^ (!newf);
@@ -491,9 +490,8 @@ static void addrconf_forward_change(struct net *net, __s32 newf)
if (changed)
dev_forward_change(idev);
}
- rcu_read_unlock();
}
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
}
static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
@@ -1137,10 +1135,9 @@ int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
hiscore->rule = -1;
hiscore->ifa = NULL;
- read_lock(&dev_base_lock);
rcu_read_lock();
- for_each_netdev(net, dev) {
+ for_each_netdev_rcu(net, dev) {
struct inet6_dev *idev;
/* Candidate Source Address (section 4)
@@ -1235,7 +1232,6 @@ try_nextdev:
read_unlock_bh(&idev->lock);
}
rcu_read_unlock();
- read_unlock(&dev_base_lock);
if (!hiscore->ifa)
return -EADDRNOTAVAIL;
@@ -3485,85 +3481,114 @@ enum addr_type_t
ANYCAST_ADDR,
};
+/* called with rcu_read_lock() */
+static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb,
+ struct netlink_callback *cb, enum addr_type_t type,
+ int s_ip_idx, int *p_ip_idx)
+{
+ struct inet6_ifaddr *ifa;
+ struct ifmcaddr6 *ifmca;
+ struct ifacaddr6 *ifaca;
+ int err = 1;
+ int ip_idx = *p_ip_idx;
+
+ read_lock_bh(&idev->lock);
+ switch (type) {
+ case UNICAST_ADDR:
+ /* unicast address incl. temp addr */
+ for (ifa = idev->addr_list; ifa;
+ ifa = ifa->if_next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
+ err = inet6_fill_ifaddr(skb, ifa,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_NEWADDR,
+ NLM_F_MULTI);
+ if (err <= 0)
+ break;
+ }
+ break;
+ case MULTICAST_ADDR:
+ /* multicast address */
+ for (ifmca = idev->mc_list; ifmca;
+ ifmca = ifmca->next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
+ err = inet6_fill_ifmcaddr(skb, ifmca,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_GETMULTICAST,
+ NLM_F_MULTI);
+ if (err <= 0)
+ break;
+ }
+ break;
+ case ANYCAST_ADDR:
+ /* anycast address */
+ for (ifaca = idev->ac_list; ifaca;
+ ifaca = ifaca->aca_next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
+ err = inet6_fill_ifacaddr(skb, ifaca,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_GETANYCAST,
+ NLM_F_MULTI);
+ if (err <= 0)
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+ read_unlock_bh(&idev->lock);
+ *p_ip_idx = ip_idx;
+ return err;
+}
+
static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
enum addr_type_t type)
{
+ struct net *net = sock_net(skb->sk);
+ int h, s_h;
int idx, ip_idx;
int s_idx, s_ip_idx;
- int err = 1;
struct net_device *dev;
- struct inet6_dev *idev = NULL;
- struct inet6_ifaddr *ifa;
- struct ifmcaddr6 *ifmca;
- struct ifacaddr6 *ifaca;
- struct net *net = sock_net(skb->sk);
+ struct inet6_dev *idev;
+ struct hlist_head *head;
+ struct hlist_node *node;
- s_idx = cb->args[0];
- s_ip_idx = ip_idx = cb->args[1];
+ s_h = cb->args[0];
+ s_idx = idx = cb->args[1];
+ s_ip_idx = ip_idx = cb->args[2];
- idx = 0;
- for_each_netdev(net, dev) {
- if (idx < s_idx)
- goto cont;
- if (idx > s_idx)
- s_ip_idx = 0;
- ip_idx = 0;
- if ((idev = in6_dev_get(dev)) == NULL)
- goto cont;
- read_lock_bh(&idev->lock);
- switch (type) {
- case UNICAST_ADDR:
- /* unicast address incl. temp addr */
- for (ifa = idev->addr_list; ifa;
- ifa = ifa->if_next, ip_idx++) {
- if (ip_idx < s_ip_idx)
- continue;
- err = inet6_fill_ifaddr(skb, ifa,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- RTM_NEWADDR,
- NLM_F_MULTI);
- }
- break;
- case MULTICAST_ADDR:
- /* multicast address */
- for (ifmca = idev->mc_list; ifmca;
- ifmca = ifmca->next, ip_idx++) {
- if (ip_idx < s_ip_idx)
- continue;
- err = inet6_fill_ifmcaddr(skb, ifmca,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- RTM_GETMULTICAST,
- NLM_F_MULTI);
- }
- break;
- case ANYCAST_ADDR:
- /* anycast address */
- for (ifaca = idev->ac_list; ifaca;
- ifaca = ifaca->aca_next, ip_idx++) {
- if (ip_idx < s_ip_idx)
- continue;
- err = inet6_fill_ifacaddr(skb, ifaca,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- RTM_GETANYCAST,
- NLM_F_MULTI);
- }
- break;
- default:
- break;
- }
- read_unlock_bh(&idev->lock);
- in6_dev_put(idev);
-
- if (err <= 0)
- break;
+ rcu_read_lock();
+ for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
+ idx = 0;
+ head = &net->dev_index_head[h];
+ hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
+ if (idx < s_idx)
+ goto cont;
+ if (idx > s_idx)
+ s_ip_idx = 0;
+ ip_idx = 0;
+ if ((idev = __in6_dev_get(dev)) == NULL)
+ goto cont;
+
+ if (in6_dump_addrs(idev, skb, cb, type,
+ s_ip_idx, &ip_idx) <= 0)
+ goto done;
cont:
- idx++;
+ idx++;
+ }
}
- cb->args[0] = idx;
- cb->args[1] = ip_idx;
+done:
+ rcu_read_unlock();
+ cb->args[0] = h;
+ cb->args[1] = idx;
+ cb->args[2] = ip_idx;
+
return skb->len;
}
@@ -3708,6 +3733,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
#endif
array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6;
array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad;
+ array[DEVCONF_FORCE_TLLAO] = cnf->force_tllao;
}
static inline size_t inet6_if_nlmsg_size(void)
@@ -3826,28 +3852,39 @@ nla_put_failure:
static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
- int idx, err;
- int s_idx = cb->args[0];
+ int h, s_h;
+ int idx = 0, s_idx;
struct net_device *dev;
struct inet6_dev *idev;
+ struct hlist_head *head;
+ struct hlist_node *node;
- read_lock(&dev_base_lock);
- idx = 0;
- for_each_netdev(net, dev) {
- if (idx < s_idx)
- goto cont;
- if ((idev = in6_dev_get(dev)) == NULL)
- goto cont;
- err = inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, RTM_NEWLINK, NLM_F_MULTI);
- in6_dev_put(idev);
- if (err <= 0)
- break;
+ s_h = cb->args[0];
+ s_idx = cb->args[1];
+
+ rcu_read_lock();
+ for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
+ idx = 0;
+ head = &net->dev_index_head[h];
+ hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
+ if (idx < s_idx)
+ goto cont;
+ idev = __in6_dev_get(dev);
+ if (!idev)
+ goto cont;
+ if (inet6_fill_ifinfo(skb, idev,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_NEWLINK, NLM_F_MULTI) <= 0)
+ goto out;
cont:
- idx++;
+ idx++;
+ }
}
- read_unlock(&dev_base_lock);
- cb->args[0] = idx;
+out:
+ rcu_read_unlock();
+ cb->args[1] = idx;
+ cb->args[0] = h;
return skb->len;
}
@@ -4000,41 +4037,6 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write,
return ret;
}
-static int addrconf_sysctl_forward_strategy(ctl_table *table,
- void __user *oldval,
- size_t __user *oldlenp,
- void __user *newval, size_t newlen)
-{
- int *valp = table->data;
- int val = *valp;
- int new;
-
- if (!newval || !newlen)
- return 0;
- if (newlen != sizeof(int))
- return -EINVAL;
- if (get_user(new, (int __user *)newval))
- return -EFAULT;
- if (new == *valp)
- return 0;
- if (oldval && oldlenp) {
- size_t len;
- if (get_user(len, oldlenp))
- return -EFAULT;
- if (len) {
- if (len > table->maxlen)
- len = table->maxlen;
- if (copy_to_user(oldval, valp, len))
- return -EFAULT;
- if (put_user(len, oldlenp))
- return -EFAULT;
- }
- }
-
- *valp = new;
- return addrconf_fixup_forwarding(table, valp, val);
-}
-
static void dev_disable_change(struct inet6_dev *idev)
{
if (!idev || !idev->dev)
@@ -4051,9 +4053,8 @@ static void addrconf_disable_change(struct net *net, __s32 newf)
struct net_device *dev;
struct inet6_dev *idev;
- read_lock(&dev_base_lock);
- for_each_netdev(net, dev) {
- rcu_read_lock();
+ rcu_read_lock();
+ for_each_netdev_rcu(net, dev) {
idev = __in6_dev_get(dev);
if (idev) {
int changed = (!idev->cnf.disable_ipv6) ^ (!newf);
@@ -4061,9 +4062,8 @@ static void addrconf_disable_change(struct net *net, __s32 newf)
if (changed)
dev_disable_change(idev);
}
- rcu_read_unlock();
}
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
}
static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old)
@@ -4113,16 +4113,13 @@ static struct addrconf_sysctl_table
.sysctl_header = NULL,
.addrconf_vars = {
{
- .ctl_name = NET_IPV6_FORWARDING,
.procname = "forwarding",
.data = &ipv6_devconf.forwarding,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = addrconf_sysctl_forward,
- .strategy = addrconf_sysctl_forward_strategy,
},
{
- .ctl_name = NET_IPV6_HOP_LIMIT,
.procname = "hop_limit",
.data = &ipv6_devconf.hop_limit,
.maxlen = sizeof(int),
@@ -4130,7 +4127,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_MTU,
.procname = "mtu",
.data = &ipv6_devconf.mtu6,
.maxlen = sizeof(int),
@@ -4138,7 +4134,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_ACCEPT_RA,
.procname = "accept_ra",
.data = &ipv6_devconf.accept_ra,
.maxlen = sizeof(int),
@@ -4146,7 +4141,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_ACCEPT_REDIRECTS,
.procname = "accept_redirects",
.data = &ipv6_devconf.accept_redirects,
.maxlen = sizeof(int),
@@ -4154,7 +4148,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_AUTOCONF,
.procname = "autoconf",
.data = &ipv6_devconf.autoconf,
.maxlen = sizeof(int),
@@ -4162,7 +4155,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_DAD_TRANSMITS,
.procname = "dad_transmits",
.data = &ipv6_devconf.dad_transmits,
.maxlen = sizeof(int),
@@ -4170,7 +4162,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_RTR_SOLICITS,
.procname = "router_solicitations",
.data = &ipv6_devconf.rtr_solicits,
.maxlen = sizeof(int),
@@ -4178,25 +4169,20 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_RTR_SOLICIT_INTERVAL,
.procname = "router_solicitation_interval",
.data = &ipv6_devconf.rtr_solicit_interval,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
- .strategy = sysctl_jiffies,
},
{
- .ctl_name = NET_IPV6_RTR_SOLICIT_DELAY,
.procname = "router_solicitation_delay",
.data = &ipv6_devconf.rtr_solicit_delay,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
- .strategy = sysctl_jiffies,
},
{
- .ctl_name = NET_IPV6_FORCE_MLD_VERSION,
.procname = "force_mld_version",
.data = &ipv6_devconf.force_mld_version,
.maxlen = sizeof(int),
@@ -4205,7 +4191,6 @@ static struct addrconf_sysctl_table
},
#ifdef CONFIG_IPV6_PRIVACY
{
- .ctl_name = NET_IPV6_USE_TEMPADDR,
.procname = "use_tempaddr",
.data = &ipv6_devconf.use_tempaddr,
.maxlen = sizeof(int),
@@ -4213,7 +4198,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_TEMP_VALID_LFT,
.procname = "temp_valid_lft",
.data = &ipv6_devconf.temp_valid_lft,
.maxlen = sizeof(int),
@@ -4221,7 +4205,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_TEMP_PREFERED_LFT,
.procname = "temp_prefered_lft",
.data = &ipv6_devconf.temp_prefered_lft,
.maxlen = sizeof(int),
@@ -4229,7 +4212,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_REGEN_MAX_RETRY,
.procname = "regen_max_retry",
.data = &ipv6_devconf.regen_max_retry,
.maxlen = sizeof(int),
@@ -4237,7 +4219,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_MAX_DESYNC_FACTOR,
.procname = "max_desync_factor",
.data = &ipv6_devconf.max_desync_factor,
.maxlen = sizeof(int),
@@ -4246,7 +4227,6 @@ static struct addrconf_sysctl_table
},
#endif
{
- .ctl_name = NET_IPV6_MAX_ADDRESSES,
.procname = "max_addresses",
.data = &ipv6_devconf.max_addresses,
.maxlen = sizeof(int),
@@ -4254,7 +4234,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_ACCEPT_RA_DEFRTR,
.procname = "accept_ra_defrtr",
.data = &ipv6_devconf.accept_ra_defrtr,
.maxlen = sizeof(int),
@@ -4262,7 +4241,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_ACCEPT_RA_PINFO,
.procname = "accept_ra_pinfo",
.data = &ipv6_devconf.accept_ra_pinfo,
.maxlen = sizeof(int),
@@ -4271,7 +4249,6 @@ static struct addrconf_sysctl_table
},
#ifdef CONFIG_IPV6_ROUTER_PREF
{
- .ctl_name = NET_IPV6_ACCEPT_RA_RTR_PREF,
.procname = "accept_ra_rtr_pref",
.data = &ipv6_devconf.accept_ra_rtr_pref,
.maxlen = sizeof(int),
@@ -4279,17 +4256,14 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_RTR_PROBE_INTERVAL,
.procname = "router_probe_interval",
.data = &ipv6_devconf.rtr_probe_interval,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
- .strategy = sysctl_jiffies,
},
#ifdef CONFIG_IPV6_ROUTE_INFO
{
- .ctl_name = NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN,
.procname = "accept_ra_rt_info_max_plen",
.data = &ipv6_devconf.accept_ra_rt_info_max_plen,
.maxlen = sizeof(int),
@@ -4299,7 +4273,6 @@ static struct addrconf_sysctl_table
#endif
#endif
{
- .ctl_name = NET_IPV6_PROXY_NDP,
.procname = "proxy_ndp",
.data = &ipv6_devconf.proxy_ndp,
.maxlen = sizeof(int),
@@ -4307,7 +4280,6 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = NET_IPV6_ACCEPT_SOURCE_ROUTE,
.procname = "accept_source_route",
.data = &ipv6_devconf.accept_source_route,
.maxlen = sizeof(int),
@@ -4316,7 +4288,6 @@ static struct addrconf_sysctl_table
},
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "optimistic_dad",
.data = &ipv6_devconf.optimistic_dad,
.maxlen = sizeof(int),
@@ -4327,7 +4298,6 @@ static struct addrconf_sysctl_table
#endif
#ifdef CONFIG_IPV6_MROUTE
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "mc_forwarding",
.data = &ipv6_devconf.mc_forwarding,
.maxlen = sizeof(int),
@@ -4336,16 +4306,13 @@ static struct addrconf_sysctl_table
},
#endif
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "disable_ipv6",
.data = &ipv6_devconf.disable_ipv6,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = addrconf_sysctl_disable,
- .strategy = sysctl_intvec,
},
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "accept_dad",
.data = &ipv6_devconf.accept_dad,
.maxlen = sizeof(int),
@@ -4353,13 +4320,20 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
- .ctl_name = 0, /* sentinel */
+ .procname = "force_tllao",
+ .data = &ipv6_devconf.force_tllao,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
+ {
+ /* sentinel */
}
},
};
static int __addrconf_sysctl_register(struct net *net, char *dev_name,
- int ctl_name, struct inet6_dev *idev, struct ipv6_devconf *p)
+ struct inet6_dev *idev, struct ipv6_devconf *p)
{
int i;
struct addrconf_sysctl_table *t;
@@ -4367,9 +4341,9 @@ static int __addrconf_sysctl_register(struct net *net, char *dev_name,
#define ADDRCONF_CTL_PATH_DEV 3
struct ctl_path addrconf_ctl_path[] = {
- { .procname = "net", .ctl_name = CTL_NET, },
- { .procname = "ipv6", .ctl_name = NET_IPV6, },
- { .procname = "conf", .ctl_name = NET_IPV6_CONF, },
+ { .procname = "net", },
+ { .procname = "ipv6", },
+ { .procname = "conf", },
{ /* to be set */ },
{ },
};
@@ -4395,7 +4369,6 @@ static int __addrconf_sysctl_register(struct net *net, char *dev_name,
goto free;
addrconf_ctl_path[ADDRCONF_CTL_PATH_DEV].procname = t->dev_name;
- addrconf_ctl_path[ADDRCONF_CTL_PATH_DEV].ctl_name = ctl_name;
t->sysctl_header = register_net_sysctl_table(net, addrconf_ctl_path,
t->addrconf_vars);
@@ -4431,10 +4404,9 @@ static void addrconf_sysctl_register(struct inet6_dev *idev)
{
neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6,
NET_IPV6_NEIGH, "ipv6",
- &ndisc_ifinfo_sysctl_change,
- ndisc_ifinfo_sysctl_strategy);
+ &ndisc_ifinfo_sysctl_change);
__addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
- idev->dev->ifindex, idev, &idev->cnf);
+ idev, &idev->cnf);
}
static void addrconf_sysctl_unregister(struct inet6_dev *idev)
@@ -4455,7 +4427,7 @@ static int addrconf_init_net(struct net *net)
all = &ipv6_devconf;
dflt = &ipv6_devconf_dflt;
- if (net != &init_net) {
+ if (!net_eq(net, &init_net)) {
all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL);
if (all == NULL)
goto err_alloc_all;
@@ -4473,13 +4445,11 @@ static int addrconf_init_net(struct net *net)
net->ipv6.devconf_dflt = dflt;
#ifdef CONFIG_SYSCTL
- err = __addrconf_sysctl_register(net, "all", NET_PROTO_CONF_ALL,
- NULL, all);
+ err = __addrconf_sysctl_register(net, "all", NULL, all);
if (err < 0)
goto err_reg_all;
- err = __addrconf_sysctl_register(net, "default", NET_PROTO_CONF_DEFAULT,
- NULL, dflt);
+ err = __addrconf_sysctl_register(net, "default", NULL, dflt);
if (err < 0)
goto err_reg_dflt;
#endif
@@ -4503,7 +4473,7 @@ static void addrconf_exit_net(struct net *net)
__addrconf_sysctl_unregister(net->ipv6.devconf_dflt);
__addrconf_sysctl_unregister(net->ipv6.devconf_all);
#endif
- if (net != &init_net) {
+ if (!net_eq(net, &init_net)) {
kfree(net->ipv6.devconf_dflt);
kfree(net->ipv6.devconf_all);
}