Re: [net-next v1] net: ipv6: avoid overhead when no custom FIB rules are installed

 ❦  8 août 2017 08:46 -0600, David Ahern [off-list ref] :

quoted

diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 2f29e4e33bd3..693c27ede40e 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c

@@ -63,19 +63,32 @@ unsigned int fib6_rules_seq_read(struct net *net)
 struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
 				   int flags, pol_lookup_t lookup)
 {
-	struct fib_lookup_arg arg = {
-		.lookup_ptr = lookup,
-		.flags = FIB_LOOKUP_NOREF,
-	};
-
 	/* update flow if oif or iif point to device enslaved to l3mdev */
 	l3mdev_update_flow(net, flowi6_to_flowi(fl6));

The l3mdev_update_flow can be moved to the has_custom_rules block.
l3mdev requires FIB rules for the lookups to work, so no rules means no
l3mdev configured.

Rest looks good to me.

I suspected that it could be moved. I'll update the patch tomorrow.
-- 
Choose variable names that won't be confused.
            - The Elements of Programming Style (Kernighan & Plauger)