On Thu, 19 Nov 2020 14:37:35 +0100 Dmytro Shytyi wrote:
> +struct inet6_ifaddr *ipv6_cmp_rcvd_prsnt_prfxs(struct inet6_ifaddr *ifp,
> + struct inet6_dev *in6_dev,
> + struct net *net,
> + const struct prefix_info *pinfo)
> +{
> + struct inet6_ifaddr *result_base = NULL;
> + struct inet6_ifaddr *result = NULL;
> + struct in6_addr curr_net_prfx;
> + struct in6_addr net_prfx;
> + bool prfxs_equal;
> +
> + result_base = result;
> + rcu_read_lock();
> + list_for_each_entry_rcu(ifp, &in6_dev->addr_list, if_list) {
> + if (!net_eq(dev_net(ifp->idev->dev), net))
> + continue;
> + ipv6_addr_prefix_copy(&net_prfx, &pinfo->prefix,
> pinfo->prefix_len);
> + ipv6_addr_prefix_copy(&curr_net_prfx, &ifp->addr,
> pinfo->prefix_len);
> + prfxs_equal =
> + ipv6_prefix_equal(&net_prfx, &curr_net_prfx,
> pinfo->prefix_len);
> + if (prfxs_equal && pinfo->prefix_len == ifp->prefix_len) {
> + result = ifp;
> + in6_ifa_hold(ifp);
> + break;
> + }
> + }
> + rcu_read_unlock();
> + if (result_base != result)
> + ifp = result;
> + else
> + ifp = NULL;
> +
> + return ifp;
> +}
Thanks for adding the helper! Looks like it needs a touch up:
net/ipv6/addrconf.c:2579:22: warning: no previous prototype for
‘ipv6_cmp_rcvd_prsnt_prfxs’ [-Wmissing-prototypes]
2579 | struct inet6_ifaddr *ipv6_cmp_rcvd_prsnt_prfxs(struct inet6_ifaddr *ifp,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
net/ipv6/addrconf.c:2579:21: warning: symbol 'ipv6_cmp_rcvd_prsnt_prfxs' was
not declared. Should it be static?
