diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index d4ee15ed5e4c99e11cdff22144e5698de7b36356..8efe33805e11f4f18c5800d07f52b2a3e8af96fe 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2492,7 +2492,6 @@ int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.max_stations = IWL3945_STATION_COUNT;
 	priv->hw_params.bcast_sta_id = IWL3945_BROADCAST_ID;
 
-	priv->hw_params.tx_ant_num = 2;
 	return 0;
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 9b9d7435321b2061ccefb9f412412b91fff64315..a092401fd9c01f2d2a6d8a12789a4a7afbcb5b59 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -595,9 +595,6 @@ struct iwl_hw_params {
 	u32 ct_kill_threshold; /* value in hw-dependent units */
 	u32 calib_init_cfg;
 	const struct iwl_sensitivity_ranges *sens;
-
-	/* for 3945 */
-	u16 tx_ant_num;
 };