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authorSabrina Dubroca <sd@queasysnail.net>2014-09-11 01:23:02 +0400
committerDavid S. Miller <davem@davemloft.net>2014-09-13 01:33:06 +0400
commit381f4dca48d23e155b936b86ccd3ff12f073cf0f (patch)
treeb6f2de835f42420ad2d374c8ec91da74de2ba988 /include/net/addrconf.h
parentdcbc0054d783d53cf0479c391334e9a478daa25f (diff)
downloadlinux-381f4dca48d23e155b936b86ccd3ff12f073cf0f.tar.xz
ipv6: clean up anycast when an interface is destroyed
If we try to rmmod the driver for an interface while sockets with setsockopt(JOIN_ANYCAST) are alive, some refcounts aren't cleaned up and we get stuck on: unregister_netdevice: waiting for ens3 to become free. Usage count = 1 If we LEAVE_ANYCAST/close everything before rmmod'ing, there is no problem. We need to perform a cleanup similar to the one for multicast in addrconf_ifdown(how == 1). Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/addrconf.h')
-rw-r--r--include/net/addrconf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f679877bb601..ec51e673b4b6 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -204,6 +204,7 @@ void ipv6_sock_ac_close(struct sock *sk);
int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr);
int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr);
+void ipv6_ac_destroy_dev(struct inet6_dev *idev);
bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
const struct in6_addr *addr);
bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev,