Commit a8d15ff0 authored Mar 20, 2015 by Johannes Berg

mac80211: drop 4-addr VLAN frames earlier if not connected



If there's no station on the 4-addr VLAN interface, then frames
cannot be transmitted. Drop such frames earlier, before setting
up all the information for them.

We should keep the old check though since that code might be used
for other internally-generated frames.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 5041006c

net/mac80211/tx.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1842,6 +1842,9 @@ static struct sk_buff ieee80211_build_hdr(struct ieee80211_sub_if_data sdata,
		authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
		wme_sta = sta->sta.wme;
		have_station = true;
		} else if (sdata->wdev.use_4addr) {
		ret = -ENOLINK;
		goto free;
		}
		ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
		u.ap);