ath10k: track number of existing peers

To not exceed number of allowed clients (AP mode), make sure to
check how many of them are already on the peers list.

10.X firmware support up to 127 peers, non-AP centric firmwares 16.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 035cbf6..9d8fc29 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -432,6 +432,9 @@
 	struct list_head peers;
 	wait_queue_head_t peer_mapping_wq;
 
+	/* number of created peers; protected by data_lock */
+	int num_peers;
+
 	struct work_struct offchan_tx_work;
 	struct sk_buff_head offchan_tx_queue;
 	struct completion offchan_tx_completed;