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-stable review patch. If anyone has any objections, please let us know.
------------------
If you set network interface down and up again, the IPv6 address
autoconfiguration does not work. 'ip addr' shows that the link-local
address is in tentative state. We don't even react to periodical router
advertisements.
During NETDEV_DOWN we clear IF_READY, and we don't set it back in
NETDEV_UP. While starting to perform DAD on the link-local address, we
notice that the device is not in IF_READY, and we abort autoconfiguration
process (which would eventually send router solicitations).
Acked-by: Juha-Matti Tapio <jmtapio@verkkotelakka.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
net/ipv6/addrconf.c | 3 +++
1 files changed, 3 insertions(+)
--- linux-2.6.15.4.orig/net/ipv6/addrconf.c
+++ linux-2.6.15.4/net/ipv6/addrconf.c
@@ -2164,6 +2164,9 @@ static int addrconf_notify(struct notifi
dev->name);
break;
}
+
+ if (idev)
+ idev->if_flags |= IF_READY;
} else {
if (!netif_carrier_ok(dev)) {
/* device is still not ready. */
--
-
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