mac80211: don't require associated->beacon_ies for ps

beacon_ies is needed only in order to extract the dtim
period. However, even if it's missing we can still enter
ps with dtim=1 (which also happens if the TIM ie is invalid).

Most drivers don't use conf.max_sleep_period/ps_dtim_period
anyway, and this check prevents them from entering ps if
they don't have beacon (but only probe response), even though
the beacon is not needed at all.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index c54388b3ebff..398acc4f649d 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -902,9 +902,6 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
         if (!mgd->associated)
                 return false;
 
-        if (!mgd->associated->beacon_ies)
-                return false;
-
         if (mgd->flags & (IEEE80211_STA_BEACON_POLL |
                           IEEE80211_STA_CONNECTION_POLL))
                 return false;