net: mac80211: Add and use ht_vdbg debugging macro

Simplify the use of #ifdef CONFIG_MAC80211_HT_DEBUG/#endif
by adding a logging macro to encapsulate the test.

Convert the appropriate uses too.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

include/net/mac80211.h

@@ -3844,4 +3844,17 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif,
  */
 int ieee80211_ave_rssi(struct ieee80211_vif *vif);
 
+/* Extra debugging macros */
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+#define ht_vdbg(fmt, ...)			\
+	pr_debug(fmt, ##__VA_ARGS__)
+#else
+#define ht_vdbg(fmt, ...)			\
+do {						\
+	if (0)					\
+		pr_debug(fmt, ##__VA_ARGS__);	\
+} while (0)
+#endif
+
 #endif /* MAC80211_H */

net/mac80211/agg-rx.c

@@ -74,12 +74,10 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 
 	RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], NULL);
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("Rx BA session stop requested for %pM tid %u %s reason: %d\n",
-		 sta->sta.addr, tid,
-		 initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator",
-		 (int)reason);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+	ht_vdbg("Rx BA session stop requested for %pM tid %u %s reason: %d\n",
+		sta->sta.addr, tid,
+		initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator",
+		(int)reason);
 
 	if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP,
 			     &sta->sta, tid, NULL, 0))
@@ -154,9 +152,8 @@ static void sta_rx_agg_session_timer_expired(unsigned long data)
 		return;
 	}
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("rx session timer expired on tid %d\n", (u16)*ptid);
-#endif
+	ht_vdbg("rx session timer expired on tid %d\n", (u16)*ptid);
+
 	set_bit(*ptid, sta->ampdu_mlme.tid_rx_timer_expired);
 	ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work);
 }
@@ -243,9 +240,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 	status = WLAN_STATUS_REQUEST_DECLINED;
 
 	if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("Suspend in progress - Denying ADDBA request\n");
-#endif
+		ht_vdbg("Suspend in progress - Denying ADDBA request\n");
 		goto end_no_lock;
 	}
 
@@ -317,10 +312,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 
 	ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START,
 			       &sta->sta, tid, &start_seq_num, 0);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("Rx A-MPDU request on tid %d result %d\n", tid, ret);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
+	ht_vdbg("Rx A-MPDU request on tid %d result %d\n", tid, ret);
 	if (ret) {
 		kfree(tid_agg_rx->reorder_buf);
 		kfree(tid_agg_rx->reorder_time);

net/mac80211/agg-tx.c

@@ -184,10 +184,8 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 
 	spin_unlock_bh(&sta->lock);
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("Tx BA session stop requested for %pM tid %u\n",
-		 sta->sta.addr, tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+	ht_vdbg("Tx BA session stop requested for %pM tid %u\n",
+		sta->sta.addr, tid);
 
 	del_timer_sync(&tid_tx->addba_resp_timer);
 	del_timer_sync(&tid_tx->session_timer);
@@ -253,16 +251,12 @@ static void sta_addba_resp_timer_expired(unsigned long data)
 	if (!tid_tx ||
 	    test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) {
 		rcu_read_unlock();
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("timer expired on tid %d but we are not (or no longer) expecting addBA response there\n",
-			 tid);
-#endif
+		ht_vdbg("timer expired on tid %d but we are not (or no longer) expecting addBA response there\n",
+			tid);
 		return;
 	}
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("addBA response timer expired on tid %d\n", tid);
-#endif
+	ht_vdbg("addBA response timer expired on tid %d\n", tid);
 
 	ieee80211_stop_tx_ba_session(&sta->sta, tid);
 	rcu_read_unlock();
@@ -371,10 +365,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 	ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START,
 			       &sta->sta, tid, &start_seq_num, 0);
 	if (ret) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("BA request denied - HW unavailable for tid %d\n",
-			 tid);
-#endif
+		ht_vdbg("BA request denied - HW unavailable for tid %d\n", tid);
 		spin_lock_bh(&sta->lock);
 		ieee80211_agg_splice_packets(sdata, tid_tx, tid);
 		ieee80211_assign_tid_tx(sta, tid, NULL);
@@ -387,9 +378,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 
 	/* activate the timer for the recipient's addBA response */
 	mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("activated addBA response timer on tid %d\n", tid);
-#endif
+	ht_vdbg("activated addBA response timer on tid %d\n", tid);
 
 	spin_lock_bh(&sta->lock);
 	sta->ampdu_mlme.last_addba_req_time[tid] = jiffies;
@@ -436,9 +425,7 @@ static void sta_tx_agg_session_timer_expired(unsigned long data)
 
 	rcu_read_unlock();
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("tx session timer expired on tid %d\n", (u16)*ptid);
-#endif
+	ht_vdbg("tx session timer expired on tid %d\n", (u16)*ptid);
 
 	ieee80211_stop_tx_ba_session(&sta->sta, *ptid);
 }
@@ -462,10 +449,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 	    (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW))
 		return -EINVAL;
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("Open BA session requested for %pM tid %u\n",
-		 pubsta->addr, tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+	ht_vdbg("Open BA session requested for %pM tid %u\n",
+		pubsta->addr, tid);
 
 	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
@@ -475,9 +460,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 		return -EINVAL;
 
 	if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("BA sessions blocked - Denying BA session request\n");
-#endif
+		ht_vdbg("BA sessions blocked - Denying BA session request\n");
 		return -EINVAL;
 	}
 
@@ -495,10 +478,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 	 */
 	if (sta->sdata->vif.type == NL80211_IFTYPE_ADHOC &&
 	    !sta->sta.ht_cap.ht_supported) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("BA request denied - IBSS STA %pM does not advertise HT support\n",
-			 pubsta->addr);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+		ht_vdbg("BA request denied - IBSS STA %pM does not advertise HT support\n",
+			pubsta->addr);
 		return -EINVAL;
 	}
 
@@ -518,10 +499,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 	if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_BURST_RETRIES &&
 	    time_before(jiffies, sta->ampdu_mlme.last_addba_req_time[tid] +
 			HT_AGG_RETRIES_PERIOD)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("BA request denied - waiting a grace period after %d failed requests on tid %u\n",
-			 sta->ampdu_mlme.addba_req_num[tid], tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+		ht_vdbg("BA request denied - waiting a grace period after %d failed requests on tid %u\n",
+			sta->ampdu_mlme.addba_req_num[tid], tid);
 		ret = -EBUSY;
 		goto err_unlock_sta;
 	}
@@ -529,10 +508,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 	tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
 	/* check if the TID is not in aggregation flow already */
 	if (tid_tx || sta->ampdu_mlme.tid_start_tx[tid]) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("BA request denied - session is not idle on tid %u\n",
-			 tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+		ht_vdbg("BA request denied - session is not idle on tid %u\n",
+			tid);
 		ret = -EAGAIN;
 		goto err_unlock_sta;
 	}
@@ -587,9 +564,7 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 
 	tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("Aggregation is on for tid %d\n", tid);
-#endif
+	ht_vdbg("Aggregation is on for tid %d\n", tid);
 
 	drv_ampdu_action(local, sta->sdata,
 			 IEEE80211_AMPDU_TX_OPERATIONAL,
@@ -623,9 +598,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
 	trace_api_start_tx_ba_cb(sdata, ra, tid);
 
 	if (tid >= STA_TID_NUM) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("Bad TID value: tid = %d (>= %d)\n", tid, STA_TID_NUM);
-#endif
+		ht_vdbg("Bad TID value: tid = %d (>= %d)\n", tid, STA_TID_NUM);
 		return;
 	}
 
@@ -633,9 +606,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
 	sta = sta_info_get_bss(sdata, ra);
 	if (!sta) {
 		mutex_unlock(&local->sta_mtx);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("Could not find station: %pM\n", ra);
-#endif
+		ht_vdbg("Could not find station: %pM\n", ra);
 		return;
 	}
 
@@ -643,9 +614,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
 	tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
 
 	if (WARN_ON(!tid_tx)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("addBA was not requested!\n");
-#endif
+		ht_vdbg("addBA was not requested!\n");
 		goto unlock;
 	}
 
@@ -745,23 +714,17 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
 	trace_api_stop_tx_ba_cb(sdata, ra, tid);
 
 	if (tid >= STA_TID_NUM) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("Bad TID value: tid = %d (>= %d)\n", tid, STA_TID_NUM);
-#endif
+		ht_vdbg("Bad TID value: tid = %d (>= %d)\n", tid, STA_TID_NUM);
 		return;
 	}
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("Stopping Tx BA session for %pM tid %d\n", ra, tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+	ht_vdbg("Stopping Tx BA session for %pM tid %d\n", ra, tid);
 
 	mutex_lock(&local->sta_mtx);
 
 	sta = sta_info_get_bss(sdata, ra);
 	if (!sta) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("Could not find station: %pM\n", ra);
-#endif
+		ht_vdbg("Could not find station: %pM\n", ra);
 		goto unlock;
 	}
 
@@ -770,9 +733,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
 	tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
 
 	if (!tid_tx || !test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("unexpected callback to A-MPDU stop\n");
-#endif
+		ht_vdbg("unexpected callback to A-MPDU stop\n");
 		goto unlock_sta;
 	}
 
@@ -848,17 +809,13 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 		goto out;
 
 	if (mgmt->u.action.u.addba_resp.dialog_token != tid_tx->dialog_token) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("wrong addBA response token, tid %d\n", tid);
-#endif
+		ht_vdbg("wrong addBA response token, tid %d\n", tid);
 		goto out;
 	}
 
 	del_timer_sync(&tid_tx->addba_resp_timer);
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	pr_debug("switched off addBA timer for tid %d\n", tid);
-#endif
+	ht_vdbg("switched off addBA timer for tid %d\n", tid);
 
 	/*
 	 * addba_resp_timer may have fired before we got here, and
@@ -867,10 +824,8 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 	 */
 	if (test_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state) ||
 	    test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		pr_debug("got addBA resp for tid %d but we already gave up\n",
-			 tid);
-#endif
+		ht_vdbg("got addBA resp for tid %d but we already gave up\n",
+			tid);
 		goto out;
 	}