From: Julian Anastasov Date: Wed, 27 Jul 2016 06:56:50 +0000 (+0300) Subject: neigh: allow admin to set NUD_STALE X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0e7bbcc104baaade4f64205e9706b7d43c46db7d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git neigh: allow admin to set NUD_STALE Admin should be able to set any state. Currently, this fails when lladdr is not changed and state is changed from NUD_CONNECTED to NUD_STALE: ip neigh add 192.168.8.1 lladdr 00:11:22:33:44:55 nud perm dev wlan0 ip neigh show to 192.168.8.1 192.168.8.1 dev wlan0 lladdr 00:11:22:33:44:55 PERMANENT ip neigh change 192.168.8.1 lladdr 00:11:22:33:44:55 nud stale dev wlan0 ip neigh show to 192.168.8.1 192.168.8.1 dev wlan0 lladdr 00:11:22:33:44:55 PERMANENT Problem may be from 2.1.X days. Signed-off-by: Julian Anastasov Reviewed-by: Chunhui He Signed-off-by: David S. Miller --- diff --git a/net/core/neighbour.c b/net/core/neighbour.c index cf26e04c4046..2ae929f9bd06 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -1148,7 +1148,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, } else goto out; } else { - if (lladdr == neigh->ha && new == NUD_STALE) + if (lladdr == neigh->ha && new == NUD_STALE && + !(flags & NEIGH_UPDATE_F_ADMIN)) new = old; } }