mac80211: allow driver to be stateless wrt. SMSP requests
Bail out if no update is made to the SMPS state. This
allows the driver to avoid duplicating the state.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 61ac7c4..9e7560b 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -406,6 +406,9 @@
if (WARN_ON(smps_mode == IEEE80211_SMPS_OFF))
smps_mode = IEEE80211_SMPS_AUTOMATIC;
+ if (sdata->u.mgd.driver_smps_mode == smps_mode)
+ return;
+
sdata->u.mgd.driver_smps_mode = smps_mode;
ieee80211_queue_work(&sdata->local->hw,