From: Johannes Berg <johannes.berg@xxxxxxxxx> When an interface is brought down it must have been disconnected (or similar) in all modes other than WDS, so warn if any stations were removed in other modes. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> --- net/mac80211/iface.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 36109eb..9dacc3a 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -756,7 +756,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, unsigned long flags; struct sk_buff *skb, *tmp; u32 hw_reconf_flags = 0; - int i; + int i, flushed; clear_bit(SDATA_STATE_RUNNING, &sdata->state); @@ -781,11 +781,13 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, * (because if we remove a STA after ops->remove_interface() * the driver will have removed the vif info already!) * - * This is relevant only in AP, WDS and mesh modes, since in - * all other modes we've already removed all stations when - * disconnecting etc. + * This is relevant only in WDS mode, in all other modes we've + * already removed all stations when disconnecting or similar, + * so warn otherwise. */ - sta_info_flush(sdata); + flushed = sta_info_flush(sdata); + WARN_ON_ONCE((sdata->vif.type != NL80211_IFTYPE_WDS && flushed > 0) || + (sdata->vif.type == NL80211_IFTYPE_WDS && flushed != 1)); /* * Don't count this interface for promisc/allmulti while it -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
