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| author | Veaceslav Falico <vfalico@redhat.com> | 2011-05-24 01:15:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-24 19:26:12 +0200 |
| commit | 24cf3af3fed5edcf90bc2a0ed181e6ce1513d2dc (patch) | |
| tree | 3e86eba024dbd8c34ca413d5c0cc28fbb321e15d /drivers/net | |
| parent | net: use synchronize_rcu_expedited() (diff) | |
| download | linux-24cf3af3fed5edcf90bc2a0ed181e6ce1513d2dc.tar.xz linux-24cf3af3fed5edcf90bc2a0ed181e6ce1513d2dc.zip | |
igmp: call ip_mc_clear_src() only when we have no users of ip_mc_list
In igmp_group_dropped() we call ip_mc_clear_src(), which resets the number
of source filters per mulitcast. However, igmp_group_dropped() is also
called on NETDEV_DOWN, NETDEV_PRE_TYPE_CHANGE and NETDEV_UNREGISTER, which
means that the group might get added back on NETDEV_UP, NETDEV_REGISTER and
NETDEV_POST_TYPE_CHANGE respectively, leaving us with broken source
filters.
To fix that, we must clear the source filters only when there are no users
in the ip_mc_list, i.e. in ip_mc_dec_group() and on device destroy.
Acked-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
0 files changed, 0 insertions, 0 deletions