• Johannes Berg's avatar
    mac80211: remove STA entries when taking down interface · 44213b5e
    Johannes Berg authored
    When we take down an interface, we need to remove the STA info
    items that belong to it because otherwise we might invoke a
    sta_notify() callback in the driver when we later delete the
    STA entries, but in that case the driver will already have
    removed its knowledge of the interface they belonged to leading
    to confusion. Also, we could invoke the set_tim() callback after
    the driver removed its knowledge of the interface, which can
    lead to a crash if it requests a beacon with a then-invalid vif
    A side effect of this patch is that, because it was easier, it
    disallows changing the WDS peer while an interface is up. Should
    that actually be necessary, it can be added back, but the WDS
    peer STA entry may not be added while the interface is UP so for
    now I've simplified the WDS peer's STA entry lifetime management.
    Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
    Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
ieee80211_i.h 28.9 KB