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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-sta.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-sta.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h
index c2a453a1a99..5b1b1e461eb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.h
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.h
@@ -107,4 +107,33 @@ static inline int iwl_sta_id(struct ieee80211_sta *sta)
return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
}
+
+/**
+ * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
+ * @priv: iwl priv
+ * @sta: mac80211 station
+ *
+ * In certain circumstances mac80211 passes a station pointer
+ * that may be %NULL, for example during TX or key setup. In
+ * that case, we need to use the broadcast station, so this
+ * inline wraps that pattern.
+ */
+static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
+ struct ieee80211_sta *sta)
+{
+ int sta_id;
+
+ if (!sta)
+ return priv->hw_params.bcast_sta_id;
+
+ sta_id = iwl_sta_id(sta);
+
+ /*
+ * mac80211 should not be passing a partially
+ * initialised station!
+ */
+ WARN_ON(sta_id == IWL_INVALID_STATION);
+
+ return sta_id;
+}
#endif /* __iwl_sta_h__ */