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Date: Mon, 27 May 2013 14:16:12 +0300 From: Timo Teräs <timo.teras@....fi> To: netdev@...r.kernel.org Cc: Timo Teräs <timo.teras@....fi> Subject: [PATCH net-next 2/6] arp: flush arp cache on IFF_NOARP change IFF_NOARP affects what kind of neighbor entries are created (nud NOARP or nud INCOMPLETE). If the flag changes, flush the arp cache to refresh all entries. Signed-off-by: Timo Teräs <timo.teras@....fi> --- net/ipv4/arp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index 247ec19..0a15fb7 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -1241,6 +1241,10 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, neigh_changeaddr(&arp_tbl, dev); rt_cache_flush(dev_net(dev)); break; + case NETDEV_CHANGE: + if (dev->flags_changed & IFF_NOARP) + neigh_changeaddr(&arp_tbl, dev); + break; default: break; } -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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