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[32/43] iwlwifi: mvm: Send power command on BSS_CHANGED_BEACON_INFO if needed

Message ID 1456905404-14435-32-git-send-email-emmanuel.grumbach@intel.com
State Accepted
Delegated to: Kalle Valo
Headers show

Commit Message

Emmanuel Grumbach March 2, 2016, 7:56 a.m. UTC
From: Avri Altman <avri.altman@intel.com>

Beacon abort (ba) is set while sending power command, but only
after at least one beacon_filter command was successfully sent.

If we heard a beacon before starting association, this order
is maintained and ba is properly set.

However, if the first beacon is received after association,
we send the power command upon association, configure the
beacon filtering when the first beacon arrives, and in that case,
beacon abort is not set.

So identify this, and send a power command post the beacon_filter
command if needed.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 86b4b9d..927b055 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1955,7 +1955,12 @@  static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
+		       /*
+			* Send power command on every beacon change,
+			* because we may have not enabled beacon abort yet.
+			*/
 		ret = iwl_mvm_power_update_mac(mvm);
 		if (ret)
 			IWL_ERR(mvm, "failed to update power mode\n");