wil6210: support regular scan on P2P_DEVICE interface

P2P search can only run on the social channel (channel 2).
When issuing a scan request on the P2P_DEVICE interface,
driver ignored the channels argument and always performed a P2P
search.
Fix this by checking the channels argument, if it is
not specified (meaning full scan) or if a non-social channel
was specified, perform a regular scan and not a P2P search.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/wil6210/cfg80211.c

@@ -375,8 +375,9 @@ static int wil_cfg80211_scan(struct wiphy *wiphy,
 		return -EBUSY;
 	}
 
-	/* scan on P2P_DEVICE is handled as p2p search */
-	if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE) {
+	/* social scan on P2P_DEVICE is handled as p2p search */
+	if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
+	    wil_p2p_is_social_scan(request)) {
 		wil->scan_request = request;
 		wil->radio_wdev = wdev;
 		rc = wil_p2p_search(wil, request);

drivers/net/wireless/ath/wil6210/p2p.c

@@ -22,6 +22,12 @@
 #define P2P_SEARCH_DURATION_MS 500
 #define P2P_DEFAULT_BI 100
 
+bool wil_p2p_is_social_scan(struct cfg80211_scan_request *request)
+{
+	return (request->n_channels == 1) &&
+	       (request->channels[0]->hw_value == P2P_DMG_SOCIAL_CHANNEL);
+}
+
 void wil_p2p_discovery_timer_fn(ulong x)
 {
 	struct wil6210_priv *wil = (void *)x;

drivers/net/wireless/ath/wil6210/wil6210.h

@@ -776,6 +776,7 @@ void wil_disable_irq(struct wil6210_priv *wil);
 void wil_enable_irq(struct wil6210_priv *wil);
 
 /* P2P */
+bool wil_p2p_is_social_scan(struct cfg80211_scan_request *request);
 void wil_p2p_discovery_timer_fn(ulong x);
 int wil_p2p_search(struct wil6210_priv *wil,
 		   struct cfg80211_scan_request *request);