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authorDavid Ahern <dsahern@gmail.com>2020-05-26 21:56:18 +0300
committerDavid S. Miller <davem@davemloft.net>2020-05-27 02:06:07 +0300
commit1fd1c768f3624a5e66766e7b4ddb9b607cd834a5 (patch)
treeb70ecc0b84cb9c9db0c4e40ba2af7f12eacdf969 /net/ipv4/fib_frontend.c
parentaf7888ad9edbd8ba7f6449d1c27ce281ad4b26fd (diff)
downloadlinux-1fd1c768f3624a5e66766e7b4ddb9b607cd834a5.tar.xz
ipv4: nexthop version of fib_info_nh_uses_dev
Similar to the last path, need to fix fib_info_nh_uses_dev for external nexthops to avoid referencing multiple nh_grp structs. Move the device check in fib_info_nh_uses_dev to a helper and create a nexthop version that is called if the fib_info uses an external nexthop. Fixes: 430a049190de ("nexthop: Add support for nexthop groups") Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_frontend.c')
-rw-r--r--net/ipv4/fib_frontend.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 1bf9da3a75f9..41079490a118 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -309,17 +309,18 @@ bool fib_info_nh_uses_dev(struct fib_info *fi, const struct net_device *dev)
{
bool dev_match = false;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
- int ret;
+ if (unlikely(fi->nh)) {
+ dev_match = nexthop_uses_dev(fi->nh, dev);
+ } else {
+ int ret;
- for (ret = 0; ret < fib_info_num_path(fi); ret++) {
- const struct fib_nh_common *nhc = fib_info_nhc(fi, ret);
+ for (ret = 0; ret < fib_info_num_path(fi); ret++) {
+ const struct fib_nh_common *nhc = fib_info_nhc(fi, ret);
- if (nhc->nhc_dev == dev) {
- dev_match = true;
- break;
- } else if (l3mdev_master_ifindex_rcu(nhc->nhc_dev) == dev->ifindex) {
- dev_match = true;
- break;
+ if (nhc_l3mdev_matches_dev(nhc, dev)) {
+ dev_match = true;
+ break;
+ }
}
}
#else