wifi: ath12k: remove unused variable monitor_flags

monitor_flags is defined in struct ath12k. Although it is changed in
some places, but it is not actually used.

So remove related code.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240429081525.983-2-quic_kangyang@quicinc.com

drivers/net/wireless/ath/ath12k/core.h

@@ -212,10 +212,6 @@ enum ath12k_dev_flags {
 	ATH12K_FLAG_EXT_IRQ_ENABLED,
 };
 
-enum ath12k_monitor_flags {
-	ATH12K_FLAG_MONITOR_ENABLED,
-};
-
 struct ath12k_tx_conf {
 	bool changed;
 	u16 ac;
@@ -532,7 +528,6 @@ struct ath12k {
 
 	unsigned long dev_flags;
 	unsigned int filter_flags;
-	unsigned long monitor_flags;
 	u32 min_tx_power;
 	u32 max_tx_power;
 	u32 txpower_limit_2g;

drivers/net/wireless/ath/ath12k/mac.c

@@ -6510,7 +6510,6 @@ static int ath12k_mac_vdev_delete(struct ath12k *ar, struct ieee80211_vif *vif)
 
 	/* Recalc txpower for remaining vdev */
 	ath12k_mac_txpower_recalc(ar);
-	clear_bit(ATH12K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
 
 	/* TODO: recal traffic pause state based on the available vdevs */
 	arvif->is_created = false;
@@ -6581,15 +6580,9 @@ static void ath12k_mac_configure_filter(struct ath12k *ar,
 	reset_flag = !(ar->filter_flags & FIF_BCN_PRBRESP_PROMISC);
 
 	ret = ath12k_dp_tx_htt_monitor_mode_ring_config(ar, reset_flag);
-	if (!ret) {
-		if (!reset_flag)
-			set_bit(ATH12K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
-		else
-			clear_bit(ATH12K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
-	} else {
+	if (ret)
 		ath12k_warn(ar->ab,
 			    "fail to set monitor filter: %d\n", ret);
-	}
 
 	ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
 		   "total_flags:0x%x, reset_flag:%d\n",
@@ -8869,7 +8862,6 @@ static void ath12k_mac_setup(struct ath12k *ar)
 
 	INIT_WORK(&ar->wmi_mgmt_tx_work, ath12k_mgmt_over_wmi_tx_work);
 	skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
-	clear_bit(ATH12K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
 }
 
 int ath12k_mac_register(struct ath12k_base *ab)