Commit a8674f75 authored Dec 14, 2019 by Ido Schimmel Committed by David S. Miller Dec 16, 2019

ipv4: Notify newly added route if should be offloaded



When a route is added, it should only be notified in case it is the
first route in the FIB alias list with the given {prefix, prefix length,
table ID}. Otherwise, it is not used in the data path and should not be
considered by switch drivers.

v2:
* Convert to use fib_find_alias() instead of fib_find_first_alias()

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent ee3936d6

net/ipv4/fib_trie.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -1295,6 +1295,16 @@ int fib_table_insert(struct net net, struct fib_table tb,
		if (WARN_ON_ONCE(!l))
		goto out_free_new_fa;

		if (fib_find_alias(&l->leaf, new_fa->fa_slen, 0, 0, tb->tb_id, true) ==
		new_fa) {
		enum fib_event_type fib_event;

		fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
		err = call_fib_entry_notifiers(net, fib_event, key, plen,
		new_fa, extack);
		if (err)
		goto out_remove_new_fa;
		}
		err = call_fib_entry_notifiers(net, event, key, plen, new_fa, extack);
		if (err)
		goto out_remove_new_fa;

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