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Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c32
1 files changed, 11 insertions, 21 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4dc0d44a5d31..f2c7e615f902 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1419,11 +1419,10 @@ int ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
1419 struct net_device *dev, int strict) 1419 struct net_device *dev, int strict)
1420{ 1420{
1421 struct inet6_ifaddr *ifp; 1421 struct inet6_ifaddr *ifp;
1422 struct hlist_node *node;
1423 unsigned int hash = inet6_addr_hash(addr); 1422 unsigned int hash = inet6_addr_hash(addr);
1424 1423
1425 rcu_read_lock_bh(); 1424 rcu_read_lock_bh();
1426 hlist_for_each_entry_rcu(ifp, node, &inet6_addr_lst[hash], addr_lst) { 1425 hlist_for_each_entry_rcu(ifp, &inet6_addr_lst[hash], addr_lst) {
1427 if (!net_eq(dev_net(ifp->idev->dev), net)) 1426 if (!net_eq(dev_net(ifp->idev->dev), net))
1428 continue; 1427 continue;
1429 if (ipv6_addr_equal(&ifp->addr, addr) && 1428 if (ipv6_addr_equal(&ifp->addr, addr) &&
@@ -1445,9 +1444,8 @@ static bool ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
1445{ 1444{
1446 unsigned int hash = inet6_addr_hash(addr); 1445 unsigned int hash = inet6_addr_hash(addr);
1447 struct inet6_ifaddr *ifp; 1446 struct inet6_ifaddr *ifp;
1448 struct hlist_node *node;
1449 1447
1450 hlist_for_each_entry(ifp, node, &inet6_addr_lst[hash], addr_lst) { 1448 hlist_for_each_entry(ifp, &inet6_addr_lst[hash], addr_lst) {
1451 if (!net_eq(dev_net(ifp->idev->dev), net)) 1449 if (!net_eq(dev_net(ifp->idev->dev), net))
1452 continue; 1450 continue;
1453 if (ipv6_addr_equal(&ifp->addr, addr)) { 1451 if (ipv6_addr_equal(&ifp->addr, addr)) {
@@ -1487,10 +1485,9 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
1487{ 1485{
1488 struct inet6_ifaddr *ifp, *result = NULL; 1486 struct inet6_ifaddr *ifp, *result = NULL;
1489 unsigned int hash = inet6_addr_hash(addr); 1487 unsigned int hash = inet6_addr_hash(addr);
1490 struct hlist_node *node;
1491 1488
1492 rcu_read_lock_bh(); 1489 rcu_read_lock_bh();
1493 hlist_for_each_entry_rcu_bh(ifp, node, &inet6_addr_lst[hash], addr_lst) { 1490 hlist_for_each_entry_rcu_bh(ifp, &inet6_addr_lst[hash], addr_lst) {
1494 if (!net_eq(dev_net(ifp->idev->dev), net)) 1491 if (!net_eq(dev_net(ifp->idev->dev), net))
1495 continue; 1492 continue;
1496 if (ipv6_addr_equal(&ifp->addr, addr)) { 1493 if (ipv6_addr_equal(&ifp->addr, addr)) {
@@ -2907,11 +2904,10 @@ static int addrconf_ifdown(struct net_device *dev, int how)
2907 /* Step 2: clear hash table */ 2904 /* Step 2: clear hash table */
2908 for (i = 0; i < IN6_ADDR_HSIZE; i++) { 2905 for (i = 0; i < IN6_ADDR_HSIZE; i++) {
2909 struct hlist_head *h = &inet6_addr_lst[i]; 2906 struct hlist_head *h = &inet6_addr_lst[i];
2910 struct hlist_node *n;
2911 2907
2912 spin_lock_bh(&addrconf_hash_lock); 2908 spin_lock_bh(&addrconf_hash_lock);
2913 restart: 2909 restart:
2914 hlist_for_each_entry_rcu(ifa, n, h, addr_lst) { 2910 hlist_for_each_entry_rcu(ifa, h, addr_lst) {
2915 if (ifa->idev == idev) { 2911 if (ifa->idev == idev) {
2916 hlist_del_init_rcu(&ifa->addr_lst); 2912 hlist_del_init_rcu(&ifa->addr_lst);
2917 addrconf_del_timer(ifa); 2913 addrconf_del_timer(ifa);
@@ -3218,8 +3214,7 @@ static struct inet6_ifaddr *if6_get_first(struct seq_file *seq, loff_t pos)
3218 } 3214 }
3219 3215
3220 for (; state->bucket < IN6_ADDR_HSIZE; ++state->bucket) { 3216 for (; state->bucket < IN6_ADDR_HSIZE; ++state->bucket) {
3221 struct hlist_node *n; 3217 hlist_for_each_entry_rcu_bh(ifa, &inet6_addr_lst[state->bucket],
3222 hlist_for_each_entry_rcu_bh(ifa, n, &inet6_addr_lst[state->bucket],
3223 addr_lst) { 3218 addr_lst) {
3224 if (!net_eq(dev_net(ifa->idev->dev), net)) 3219 if (!net_eq(dev_net(ifa->idev->dev), net))
3225 continue; 3220 continue;
@@ -3244,9 +3239,8 @@ static struct inet6_ifaddr *if6_get_next(struct seq_file *seq,
3244{ 3239{
3245 struct if6_iter_state *state = seq->private; 3240 struct if6_iter_state *state = seq->private;
3246 struct net *net = seq_file_net(seq); 3241 struct net *net = seq_file_net(seq);
3247 struct hlist_node *n = &ifa->addr_lst;
3248 3242
3249 hlist_for_each_entry_continue_rcu_bh(ifa, n, addr_lst) { 3243 hlist_for_each_entry_continue_rcu_bh(ifa, addr_lst) {
3250 if (!net_eq(dev_net(ifa->idev->dev), net)) 3244 if (!net_eq(dev_net(ifa->idev->dev), net))
3251 continue; 3245 continue;
3252 state->offset++; 3246 state->offset++;
@@ -3255,7 +3249,7 @@ static struct inet6_ifaddr *if6_get_next(struct seq_file *seq,
3255 3249
3256 while (++state->bucket < IN6_ADDR_HSIZE) { 3250 while (++state->bucket < IN6_ADDR_HSIZE) {
3257 state->offset = 0; 3251 state->offset = 0;
3258 hlist_for_each_entry_rcu_bh(ifa, n, 3252 hlist_for_each_entry_rcu_bh(ifa,
3259 &inet6_addr_lst[state->bucket], addr_lst) { 3253 &inet6_addr_lst[state->bucket], addr_lst) {
3260 if (!net_eq(dev_net(ifa->idev->dev), net)) 3254 if (!net_eq(dev_net(ifa->idev->dev), net))
3261 continue; 3255 continue;
@@ -3357,11 +3351,10 @@ int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr)
3357{ 3351{
3358 int ret = 0; 3352 int ret = 0;
3359 struct inet6_ifaddr *ifp = NULL; 3353 struct inet6_ifaddr *ifp = NULL;
3360 struct hlist_node *n;
3361 unsigned int hash = inet6_addr_hash(addr); 3354 unsigned int hash = inet6_addr_hash(addr);
3362 3355
3363 rcu_read_lock_bh(); 3356 rcu_read_lock_bh();
3364 hlist_for_each_entry_rcu_bh(ifp, n, &inet6_addr_lst[hash], addr_lst) { 3357 hlist_for_each_entry_rcu_bh(ifp, &inet6_addr_lst[hash], addr_lst) {
3365 if (!net_eq(dev_net(ifp->idev->dev), net)) 3358 if (!net_eq(dev_net(ifp->idev->dev), net))
3366 continue; 3359 continue;
3367 if (ipv6_addr_equal(&ifp->addr, addr) && 3360 if (ipv6_addr_equal(&ifp->addr, addr) &&
@@ -3383,7 +3376,6 @@ static void addrconf_verify(unsigned long foo)
3383{ 3376{
3384 unsigned long now, next, next_sec, next_sched; 3377 unsigned long now, next, next_sec, next_sched;
3385 struct inet6_ifaddr *ifp; 3378 struct inet6_ifaddr *ifp;
3386 struct hlist_node *node;
3387 int i; 3379 int i;
3388 3380
3389 rcu_read_lock_bh(); 3381 rcu_read_lock_bh();
@@ -3395,7 +3387,7 @@ static void addrconf_verify(unsigned long foo)
3395 3387
3396 for (i = 0; i < IN6_ADDR_HSIZE; i++) { 3388 for (i = 0; i < IN6_ADDR_HSIZE; i++) {
3397restart: 3389restart:
3398 hlist_for_each_entry_rcu_bh(ifp, node, 3390 hlist_for_each_entry_rcu_bh(ifp,
3399 &inet6_addr_lst[i], addr_lst) { 3391 &inet6_addr_lst[i], addr_lst) {
3400 unsigned long age; 3392 unsigned long age;
3401 3393
@@ -3866,7 +3858,6 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
3866 struct net_device *dev; 3858 struct net_device *dev;
3867 struct inet6_dev *idev; 3859 struct inet6_dev *idev;
3868 struct hlist_head *head; 3860 struct hlist_head *head;
3869 struct hlist_node *node;
3870 3861
3871 s_h = cb->args[0]; 3862 s_h = cb->args[0];
3872 s_idx = idx = cb->args[1]; 3863 s_idx = idx = cb->args[1];
@@ -3876,7 +3867,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
3876 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) { 3867 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
3877 idx = 0; 3868 idx = 0;
3878 head = &net->dev_index_head[h]; 3869 head = &net->dev_index_head[h];
3879 hlist_for_each_entry_rcu(dev, node, head, index_hlist) { 3870 hlist_for_each_entry_rcu(dev, head, index_hlist) {
3880 if (idx < s_idx) 3871 if (idx < s_idx)
3881 goto cont; 3872 goto cont;
3882 if (h > s_h || idx > s_idx) 3873 if (h > s_h || idx > s_idx)
@@ -4222,7 +4213,6 @@ static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
4222 struct net_device *dev; 4213 struct net_device *dev;
4223 struct inet6_dev *idev; 4214 struct inet6_dev *idev;
4224 struct hlist_head *head; 4215 struct hlist_head *head;
4225 struct hlist_node *node;
4226 4216
4227 s_h = cb->args[0]; 4217 s_h = cb->args[0];
4228 s_idx = cb->args[1]; 4218 s_idx = cb->args[1];
@@ -4231,7 +4221,7 @@ static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
4231 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) { 4221 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
4232 idx = 0; 4222 idx = 0;
4233 head = &net->dev_index_head[h]; 4223 head = &net->dev_index_head[h];
4234 hlist_for_each_entry_rcu(dev, node, head, index_hlist) { 4224 hlist_for_each_entry_rcu(dev, head, index_hlist) {
4235 if (idx < s_idx) 4225 if (idx < s_idx)
4236 goto cont; 4226 goto cont;
4237 idev = __in6_dev_get(dev); 4227 idev = __in6_dev_get(dev);