qcacmn: Do not create a DFS object for a 6G only radio

Do not create a DFS object for a radio if the channel frequency range
advertised by the target is a 6G only range.

Change-Id: Ib672902ec3945d00b53ab6d4460584ca889ae387
CRs-Fixed: 2755652

umac/dfs/dispatcher/src/wlan_dfs_init_deinit_api.c

@@ -397,6 +397,8 @@ QDF_STATUS wlan_dfs_pdev_obj_create_notification(struct wlan_objmgr_pdev *pdev,
 	uint8_t pdev_id;
 	QDF_STATUS status;
 	bool is_5ghz = false;
+	bool is_6ghz_only_pdev;
+	qdf_freq_t low_5g, high_5g;
 
 	if (!pdev) {
 		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "null pdev");
@@ -409,6 +411,17 @@ QDF_STATUS wlan_dfs_pdev_obj_create_notification(struct wlan_objmgr_pdev *pdev,
 		return QDF_STATUS_E_FAILURE;
 	}
 
+	wlan_reg_get_freq_range(pdev, NULL, NULL, &low_5g, &high_5g);
+	is_6ghz_only_pdev = wlan_reg_is_range_only6g(low_5g, high_5g);
+
+	if (is_6ghz_only_pdev) {
+		pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev);
+		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
+			 "Do not allocate DFS object for 6G, pdev_id = %d",
+			 pdev_id);
+		return QDF_STATUS_SUCCESS;
+	}
+
 	dfs_tx_ops = wlan_psoc_get_dfs_txops(psoc);
 	if (!(dfs_tx_ops && dfs_tx_ops->dfs_is_pdev_5ghz)) {
 		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "dfs_tx_ops is null");

umac/regulatory/dispatcher/src/wlan_reg_services_api.c

@@ -711,10 +711,17 @@ QDF_STATUS wlan_reg_get_freq_range(struct wlan_objmgr_pdev *pdev,
 		return QDF_STATUS_E_FAULT;
 	}
 
-	*low_2g = pdev_priv_obj->range_2g_low;
-	*high_2g = pdev_priv_obj->range_2g_high;
-	*low_5g = pdev_priv_obj->range_5g_low;
-	*high_5g = pdev_priv_obj->range_5g_high;
+	if (low_2g)
+		*low_2g = pdev_priv_obj->range_2g_low;
+
+	if (high_2g)
+		*high_2g = pdev_priv_obj->range_2g_high;
+
+	if (low_5g)
+		*low_5g = pdev_priv_obj->range_5g_low;
+
+	if (high_5g)
+		*high_5g = pdev_priv_obj->range_5g_high;
 
 	return QDF_STATUS_SUCCESS;
 }