diff options
| -rw-r--r-- | net/ipv6/addrconf.c | 46 |
1 files changed, 19 insertions, 27 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index daa81556d118..6556136d2b8d 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -6132,50 +6132,42 @@ static int inet6_valid_dump_ifinfo(const struct nlmsghdr *nlh, static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) { struct net *net = sock_net(skb->sk); - int h, s_h; - int idx = 0, s_idx; + struct { + unsigned long ifindex; + } *ctx = (void *)cb->ctx; struct net_device *dev; struct inet6_dev *idev; - struct hlist_head *head; + int err; /* only requests using strict checking can pass data to * influence the dump */ if (cb->strict_check) { - int err = inet6_valid_dump_ifinfo(cb->nlh, cb->extack); + err = inet6_valid_dump_ifinfo(cb->nlh, cb->extack); if (err < 0) return err; } - s_h = cb->args[0]; - s_idx = cb->args[1]; - + err = 0; 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, 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).portid, - cb->nlh->nlmsg_seq, - RTM_NEWLINK, NLM_F_MULTI) < 0) - goto out; -cont: - idx++; + for_each_netdev_dump(net, dev, ctx->ifindex) { + idev = __in6_dev_get(dev); + if (!idev) + continue; + err = inet6_fill_ifinfo(skb, idev, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, + RTM_NEWLINK, NLM_F_MULTI); + if (err < 0) { + if (likely(skb->len)) + err = skb->len; + break; } } -out: rcu_read_unlock(); - cb->args[1] = idx; - cb->args[0] = h; - return skb->len; + return err; } void inet6_ifinfo_notify(int event, struct inet6_dev *idev) |