diff options
| author | David Ahern <dsahern@gmail.com> | 2019-04-10 00:41:10 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-12 00:24:06 +0300 |
| commit | 1ba9a8951794751ea3bcbcc5df700d42d525a130 (patch) | |
| tree | a98629571ecba7385d905a7bcbff29f4dc40ef4e /net | |
| parent | 62720b12d20aecebc2e74642c37a3dc84717ac7a (diff) | |
| download | linux-1ba9a8951794751ea3bcbcc5df700d42d525a130.tar.xz | |
ipv6: Only call rt6_check_neigh for nexthop with gateway
Change rt6_check_neigh to take a fib6_nh instead of a fib entry.
Move the check on fib_flags and whether the nexthop has a gateway
up to the one caller.
Remove the inline from the definition as well. Not necessary.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/route.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 69f92d2b780e..b515fa8f787e 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -589,18 +589,14 @@ static inline int rt6_check_dev(struct fib6_info *rt, int oif) return 0; } -static inline enum rt6_nud_state rt6_check_neigh(struct fib6_info *rt) +static enum rt6_nud_state rt6_check_neigh(const struct fib6_nh *fib6_nh) { enum rt6_nud_state ret = RT6_NUD_FAIL_HARD; struct neighbour *neigh; - if (rt->fib6_flags & RTF_NONEXTHOP || - !rt->fib6_nh.fib_nh_gw_family) - return RT6_NUD_SUCCEED; - rcu_read_lock_bh(); - neigh = __ipv6_neigh_lookup_noref(rt->fib6_nh.fib_nh_dev, - &rt->fib6_nh.fib_nh_gw6); + neigh = __ipv6_neigh_lookup_noref(fib6_nh->fib_nh_dev, + &fib6_nh->fib_nh_gw6); if (neigh) { read_lock(&neigh->lock); if (neigh->nud_state & NUD_VALID) @@ -623,6 +619,7 @@ static inline enum rt6_nud_state rt6_check_neigh(struct fib6_info *rt) static int rt6_score_route(struct fib6_info *rt, int oif, int strict) { + struct fib6_nh *nh = &rt->fib6_nh; int m; m = rt6_check_dev(rt, oif); @@ -631,8 +628,9 @@ static int rt6_score_route(struct fib6_info *rt, int oif, int strict) #ifdef CONFIG_IPV6_ROUTER_PREF m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->fib6_flags)) << 2; #endif - if (strict & RT6_LOOKUP_F_REACHABLE) { - int n = rt6_check_neigh(rt); + if ((strict & RT6_LOOKUP_F_REACHABLE) && + !(rt->fib6_flags & RTF_NONEXTHOP) && nh->fib_nh_gw_family) { + int n = rt6_check_neigh(nh); if (n < 0) return n; } |