iwlwifi: enable receiving beacons when not associated

If the firmware implements beacon filtering,
beacons are filtered when not associated. This causes
association failures on channels marked passive.

Enabling this flag indicates to the firmware to allow
the beacons to pass through when not associated only.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index 8ca9570..35dd7e3 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -900,6 +900,22 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
                }
        }
 
+       /*
+        * If the ucode decides to do beacon filtering before
+        * association, it will lose beacons that are needed
+        * before sending frames out on passive channels. This
+        * causes association failures on those channels. Enable
+        * receiving beacons in such cases.
+        */
+
+       if (vif->type == NL80211_IFTYPE_STATION) {
+               if (!bss_conf->assoc)
+                       ctx->staging.filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
+               else
+                       ctx->staging.filter_flags &=
+                                                   ~RXON_FILTER_BCON_AWARE_MSK;
+       }
+
        if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
                iwlagn_commit_rxon(priv, ctx);