diff --git a/src/ap/ap_config.c b/src/ap/ap_config.c
index c44f70d..455013a 100644
--- a/src/ap/ap_config.c
+++ b/src/ap/ap_config.c
@@ -843,6 +843,29 @@
 }
 
 
+static int hostapd_config_check_cw(struct hostapd_config *conf, int queue)
+{
+	int tx_cwmin = conf->tx_queue[queue].cwmin;
+	int tx_cwmax = conf->tx_queue[queue].cwmax;
+	int ac_cwmin = conf->wmm_ac_params[queue].cwmin;
+	int ac_cwmax = conf->wmm_ac_params[queue].cwmax;
+
+	if (tx_cwmin > tx_cwmax) {
+		wpa_printf(MSG_ERROR,
+			   "Invalid TX queue cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
+			   tx_cwmin, tx_cwmax);
+		return -1;
+	}
+	if (ac_cwmin > ac_cwmax) {
+		wpa_printf(MSG_ERROR,
+			   "Invalid WMM AC cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
+			   ac_cwmin, ac_cwmax);
+		return -1;
+	}
+	return 0;
+}
+
+
 int hostapd_config_check(struct hostapd_config *conf, int full_config)
 {
 	size_t i;
@@ -872,6 +895,11 @@
 		return -1;
 	}
 
+	for (i = 0; i < NUM_TX_QUEUES; i++) {
+		if (hostapd_config_check_cw(conf, i))
+			return -1;
+	}
+
 	for (i = 0; i < conf->num_bss; i++) {
 		if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
 			return -1;
diff --git a/src/ap/vlan_util.c b/src/ap/vlan_util.c
index cc54051..d4e0efb 100644
--- a/src/ap/vlan_util.c
+++ b/src/ap/vlan_util.c
@@ -31,7 +31,7 @@
 */
 int vlan_add(const char *if_name, int vid, const char *vlan_if_name)
 {
-	int ret = -1;
+	int err, ret = -1;
 	struct nl_sock *handle = NULL;
 	struct nl_cache *cache = NULL;
 	struct rtnl_link *rlink = NULL;
@@ -58,14 +58,18 @@
 		goto vlan_add_error;
 	}
 
-	if (nl_connect(handle, NETLINK_ROUTE) < 0) {
-		wpa_printf(MSG_ERROR, "VLAN: failed to connect to netlink");
+	err = nl_connect(handle, NETLINK_ROUTE);
+	if (err < 0) {
+		wpa_printf(MSG_ERROR, "VLAN: failed to connect to netlink: %s",
+			   nl_geterror(err));
 		goto vlan_add_error;
 	}
 
-	if (rtnl_link_alloc_cache(handle, AF_UNSPEC, &cache) < 0) {
+	err = rtnl_link_alloc_cache(handle, AF_UNSPEC, &cache);
+	if (err < 0) {
 		cache = NULL;
-		wpa_printf(MSG_ERROR, "VLAN: failed to alloc cache");
+		wpa_printf(MSG_ERROR, "VLAN: failed to alloc cache: %s",
+			   nl_geterror(err));
 		goto vlan_add_error;
 	}
 
@@ -92,23 +96,29 @@
 		goto vlan_add_error;
 	}
 
-	if (rtnl_link_set_type(rlink, "vlan") < 0) {
-		wpa_printf(MSG_ERROR, "VLAN: failed to set link type");
+	err = rtnl_link_set_type(rlink, "vlan");
+	if (err < 0) {
+		wpa_printf(MSG_ERROR, "VLAN: failed to set link type: %s",
+			   nl_geterror(err));
 		goto vlan_add_error;
 	}
 
 	rtnl_link_set_link(rlink, if_idx);
 	rtnl_link_set_name(rlink, vlan_if_name);
 
-	if (rtnl_link_vlan_set_id(rlink, vid) < 0) {
-		wpa_printf(MSG_ERROR, "VLAN: failed to set link vlan id");
+	err = rtnl_link_vlan_set_id(rlink, vid);
+	if (err < 0) {
+		wpa_printf(MSG_ERROR, "VLAN: failed to set link vlan id: %s",
+			   nl_geterror(err));
 		goto vlan_add_error;
 	}
 
-	if (rtnl_link_add(handle, rlink, NLM_F_CREATE) < 0) {
+	err = rtnl_link_add(handle, rlink, NLM_F_CREATE);
+	if (err < 0) {
 		wpa_printf(MSG_ERROR, "VLAN: failed to create link %s for "
-			   "vlan %d on %s (%d)",
-			   vlan_if_name, vid, if_name, if_idx);
+			   "vlan %d on %s (%d): %s",
+			   vlan_if_name, vid, if_name, if_idx,
+			   nl_geterror(err));
 		goto vlan_add_error;
 	}
 
@@ -127,7 +137,7 @@
 
 int vlan_rem(const char *if_name)
 {
-	int ret = -1;
+	int err, ret = -1;
 	struct nl_sock *handle = NULL;
 	struct nl_cache *cache = NULL;
 	struct rtnl_link *rlink = NULL;
@@ -140,14 +150,18 @@
 		goto vlan_rem_error;
 	}
 
-	if (nl_connect(handle, NETLINK_ROUTE) < 0) {
-		wpa_printf(MSG_ERROR, "VLAN: failed to connect to netlink");
+	err = nl_connect(handle, NETLINK_ROUTE);
+	if (err < 0) {
+		wpa_printf(MSG_ERROR, "VLAN: failed to connect to netlink: %s",
+			   nl_geterror(err));
 		goto vlan_rem_error;
 	}
 
-	if (rtnl_link_alloc_cache(handle, AF_UNSPEC, &cache) < 0) {
+	err = rtnl_link_alloc_cache(handle, AF_UNSPEC, &cache);
+	if (err < 0) {
 		cache = NULL;
-		wpa_printf(MSG_ERROR, "VLAN: failed to alloc cache");
+		wpa_printf(MSG_ERROR, "VLAN: failed to alloc cache: %s",
+			   nl_geterror(err));
 		goto vlan_rem_error;
 	}
 
@@ -158,9 +172,10 @@
 		goto vlan_rem_error;
 	}
 
-	if (rtnl_link_delete(handle, rlink) < 0) {
-		wpa_printf(MSG_ERROR, "VLAN: failed to remove link %s",
-			   if_name);
+	err = rtnl_link_delete(handle, rlink);
+	if (err < 0) {
+		wpa_printf(MSG_ERROR, "VLAN: failed to remove link %s: %s",
+			   if_name, nl_geterror(err));
 		goto vlan_rem_error;
 	}
 
diff --git a/src/common/qca-vendor.h b/src/common/qca-vendor.h
index e51f85f..140295c 100644
--- a/src/common/qca-vendor.h
+++ b/src/common/qca-vendor.h
@@ -151,6 +151,7 @@
 	QCA_NL80211_VENDOR_SUBCMD_DCC_CLEAR_STATS = 98,
 	QCA_NL80211_VENDOR_SUBCMD_DCC_UPDATE_NDL = 99,
 	QCA_NL80211_VENDOR_SUBCMD_DCC_STATS_EVENT = 100,
+	QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES = 101,
 };
 
 
diff --git a/src/p2p/p2p.c b/src/p2p/p2p.c
index a45fe73..c02044b 100644
--- a/src/p2p/p2p.c
+++ b/src/p2p/p2p.c
@@ -2485,10 +2485,21 @@
 	size_t tmplen;
 	int res;
 	u8 group_capab;
+	struct p2p_message msg;
 
 	if (p2p_ie == NULL)
 		return 0; /* WLAN AP is not a P2P manager */
 
+	os_memset(&msg, 0, sizeof(msg));
+	if (p2p_parse_p2p_ie(p2p_ie, &msg) < 0)
+		return 0;
+
+	p2p_dbg(p2p, "BSS P2P manageability %s",
+		msg.manageability ? "enabled" : "disabled");
+
+	if (!msg.manageability)
+		return 0;
+
 	/*
 	 * (Re)Association Request - P2P IE
 	 * P2P Capability attribute (shall be present)