diff --git a/src/p2p/p2p.c b/src/p2p/p2p.c
index cd04008..b7fde1b 100644
--- a/src/p2p/p2p.c
+++ b/src/p2p/p2p.c
@@ -1803,6 +1803,7 @@
 		os_memcpy(params->passphrase, p2p->passphrase, os_strlen(p2p->passphrase));
 	} else {
 		p2p_random(params->passphrase, p2p->cfg->passphrase_len);
+		params->passphrase[p2p->cfg->passphrase_len] = '\0';
 	}
 	p2p->passphrase_set = 0;
 	return 0;
@@ -1837,6 +1838,7 @@
 		os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
 		res.ssid_len = p2p->ssid_len;
 		p2p_random(res.passphrase, p2p->cfg->passphrase_len);
+		res.passphrase[p2p->cfg->passphrase_len] = '\0';
 	} else {
 		res.freq = peer->oper_freq;
 		if (p2p->ssid_len) {
@@ -5540,7 +5542,7 @@
 
 
 void p2p_set_own_pref_freq_list(struct p2p_data *p2p,
-				const unsigned int *pref_freq_list,
+				const struct weighted_pcl *pref_freq_list,
 				unsigned int size)
 {
 	unsigned int i;
@@ -5548,10 +5550,11 @@
 	if (size > P2P_MAX_PREF_CHANNELS)
 		size = P2P_MAX_PREF_CHANNELS;
 	p2p->num_pref_freq = size;
+	os_memcpy(p2p->pref_freq_list, pref_freq_list,
+		  size * sizeof(struct weighted_pcl));
 	for (i = 0; i < size; i++) {
-		p2p->pref_freq_list[i] = pref_freq_list[i];
 		p2p_dbg(p2p, "Own preferred frequency list[%u]=%u MHz",
-			i, p2p->pref_freq_list[i]);
+			i, p2p->pref_freq_list[i].freq);
 	}
 }
 
diff --git a/src/p2p/p2p.h b/src/p2p/p2p.h
index f606fbb..768fc10 100644
--- a/src/p2p/p2p.h
+++ b/src/p2p/p2p.h
@@ -12,6 +12,8 @@
 #include "common/ieee802_11_defs.h"
 #include "wps/wps.h"
 
+struct weighted_pcl;
+
 /* P2P ASP Setup Capability */
 #define P2PS_SETUP_NONE 0
 #define P2PS_SETUP_NEW BIT(0)
@@ -1132,7 +1134,8 @@
 	 * the driver specific to a particular interface type.
 	 */
 	int (*get_pref_freq_list)(void *ctx, int go,
-				  unsigned int *len, unsigned int *freq_list);
+				  unsigned int *len,
+				  struct weighted_pcl *freq_list);
 };
 
 
@@ -2338,6 +2341,8 @@
 					   const u8 *go_dev_addr,
 					   const u8 *ssid, size_t ssid_len);
 
+bool p2p_pref_freq_allowed(const struct weighted_pcl *freq_list, bool go);
+
 struct p2p_nfc_params {
 	int sel;
 	const u8 *wsc_attr;
@@ -2397,7 +2402,7 @@
 void p2p_expire_peers(struct p2p_data *p2p);
 
 void p2p_set_own_pref_freq_list(struct p2p_data *p2p,
-				const unsigned int *pref_freq_list,
+				const struct weighted_pcl *pref_freq_list,
 				unsigned int size);
 void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class,
 				   u8 chan);
@@ -2422,6 +2427,6 @@
 bool p2p_wfd_enabled(struct p2p_data *p2p);
 bool is_p2p_allow_6ghz(struct p2p_data *p2p);
 void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value);
-int p2p_remove_6ghz_channels(unsigned int *pref_freq_list, int size);
+int p2p_remove_6ghz_channels(struct weighted_pcl *pref_freq_list, int size);
 
 #endif /* P2P_H */
diff --git a/src/p2p/p2p_build.c b/src/p2p/p2p_build.c
index 4229d9b..e4f40fe 100644
--- a/src/p2p/p2p_build.c
+++ b/src/p2p/p2p_build.c
@@ -10,6 +10,7 @@
 
 #include "common.h"
 #include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
 #include "common/qca-vendor.h"
 #include "wps/wps_i.h"
 #include "p2p_i.h"
@@ -111,7 +112,7 @@
 
 
 void p2p_buf_add_pref_channel_list(struct wpabuf *buf,
-				   const unsigned int *preferred_freq_list,
+				   const struct weighted_pcl *pref_freq_list,
 				   unsigned int size)
 {
 	unsigned int i, count = 0;
@@ -126,8 +127,9 @@
 	 * of the vendor IE size.
 	 */
 	for (i = 0; i < size; i++) {
-		if (p2p_freq_to_channel(preferred_freq_list[i], &op_class,
-					&op_channel) == 0)
+		if (p2p_freq_to_channel(pref_freq_list[i].freq, &op_class,
+					&op_channel) == 0 &&
+		    !(pref_freq_list[i].flag & WEIGHTED_PCL_EXCLUDE))
 			count++;
 	}
 
@@ -136,10 +138,11 @@
 	wpabuf_put_be24(buf, OUI_QCA);
 	wpabuf_put_u8(buf, QCA_VENDOR_ELEM_P2P_PREF_CHAN_LIST);
 	for (i = 0; i < size; i++) {
-		if (p2p_freq_to_channel(preferred_freq_list[i], &op_class,
-					&op_channel) < 0) {
+		if (p2p_freq_to_channel(pref_freq_list[i].freq, &op_class,
+					&op_channel) < 0 ||
+		    (pref_freq_list[i].flag & WEIGHTED_PCL_EXCLUDE)) {
 			wpa_printf(MSG_DEBUG, "Unsupported frequency %u MHz",
-				   preferred_freq_list[i]);
+				   pref_freq_list[i].freq);
 			continue;
 		}
 		wpabuf_put_u8(buf, op_class);
@@ -149,7 +152,7 @@
 
 
 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
-			      struct p2p_channels *chan)
+			      struct p2p_channels *chan, bool is_6ghz_capab)
 {
 	u8 *len;
 	size_t i;
@@ -161,6 +164,9 @@
 
 	for (i = 0; i < chan->reg_classes; i++) {
 		struct p2p_reg_class *c = &chan->reg_class[i];
+
+		if (is_6ghz_op_class(c->reg_class) && !is_6ghz_capab)
+			continue;
 		wpabuf_put_u8(buf, c->reg_class);
 		wpabuf_put_u8(buf, c->channels);
 		wpabuf_put_data(buf, c->channel, c->channels);
diff --git a/src/p2p/p2p_go_neg.c b/src/p2p/p2p_go_neg.c
index 1d53d52..e3d704b 100644
--- a/src/p2p/p2p_go_neg.c
+++ b/src/p2p/p2p_go_neg.c
@@ -142,6 +142,7 @@
 	u8 group_capab;
 	size_t extra = 0;
 	u16 pw_id;
+	bool is_6ghz_capab;
 
 #ifdef CONFIG_WIFI_DISPLAY
 	if (p2p->wfd_ie_go_neg)
@@ -179,7 +180,22 @@
 		p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
 					      p2p->ext_listen_interval);
 	p2p_buf_add_intended_addr(buf, p2p->intended_addr);
-	p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels);
+	is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+		p2p_is_peer_6ghz_capab(p2p, peer->info.p2p_device_addr);
+	if (p2p->num_pref_freq) {
+		bool go = p2p->go_intent == 15;
+		struct p2p_channels pref_chanlist;
+
+		p2p_pref_channel_filter(&p2p->channels, p2p->pref_freq_list,
+					p2p->num_pref_freq, &pref_chanlist, go);
+		p2p_channels_dump(p2p, "channel list after filtering",
+				  &pref_chanlist);
+		p2p_buf_add_channel_list(buf, p2p->cfg->country,
+					 &pref_chanlist, is_6ghz_capab);
+	} else {
+		p2p_buf_add_channel_list(buf, p2p->cfg->country,
+					 &p2p->channels, is_6ghz_capab);
+	}
 	p2p_buf_add_device_info(buf, p2p, peer);
 	p2p_buf_add_operating_channel(buf, p2p->cfg->country,
 				      p2p->op_reg_class, p2p->op_channel);
@@ -278,6 +294,8 @@
 	u8 group_capab;
 	size_t extra = 0;
 	u16 pw_id;
+	bool is_6ghz_capab;
+	struct p2p_channels pref_chanlist;
 
 	p2p_dbg(p2p, "Building GO Negotiation Response");
 
@@ -328,17 +346,35 @@
 					      p2p->op_channel);
 	}
 	p2p_buf_add_intended_addr(buf, p2p->intended_addr);
+	if (p2p->num_pref_freq) {
+		bool go = (peer && peer->go_state == LOCAL_GO) ||
+			p2p->go_intent == 15;
+
+		p2p_pref_channel_filter(&p2p->channels, p2p->pref_freq_list,
+					p2p->num_pref_freq, &pref_chanlist, go);
+		p2p_channels_dump(p2p, "channel list after filtering",
+				  &pref_chanlist);
+	} else {
+		p2p_copy_channels(&pref_chanlist, &p2p->channels,
+				  p2p->allow_6ghz);
+	}
 	if (status || peer == NULL) {
 		p2p_buf_add_channel_list(buf, p2p->cfg->country,
-					 &p2p->channels);
+					 &pref_chanlist, false);
 	} else if (peer->go_state == REMOTE_GO) {
+		is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+			p2p_is_peer_6ghz_capab(p2p, peer->info.p2p_device_addr);
 		p2p_buf_add_channel_list(buf, p2p->cfg->country,
-					 &p2p->channels);
+					 &pref_chanlist, is_6ghz_capab);
 	} else {
 		struct p2p_channels res;
-		p2p_channels_intersect(&p2p->channels, &peer->channels,
+
+		is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+			p2p_is_peer_6ghz_capab(p2p, peer->info.p2p_device_addr);
+		p2p_channels_intersect(&pref_chanlist, &peer->channels,
 				       &res);
-		p2p_buf_add_channel_list(buf, p2p->cfg->country, &res);
+		p2p_buf_add_channel_list(buf, p2p->cfg->country, &res,
+				       is_6ghz_capab);
 	}
 	p2p_buf_add_device_info(buf, p2p, peer);
 	if (peer && peer->go_state == LOCAL_GO) {
@@ -562,7 +598,8 @@
 static void p2p_check_pref_chan_no_recv(struct p2p_data *p2p, int go,
 					struct p2p_device *dev,
 					struct p2p_message *msg,
-					unsigned freq_list[], unsigned int size)
+					const struct weighted_pcl freq_list[],
+					unsigned int size)
 {
 	u8 op_class, op_channel;
 	unsigned int oper_freq = 0, i, j;
@@ -577,10 +614,11 @@
 	 */
 	for (i = 0; i < size && !found; i++) {
 		/* Make sure that the common frequency is supported by peer. */
-		oper_freq = freq_list[i];
+		oper_freq = freq_list[i].freq;
 		if (p2p_freq_to_channel(oper_freq, &op_class,
-					&op_channel) < 0)
-			continue; /* cannot happen due to earlier check */
+					&op_channel) < 0 ||
+		    !p2p_pref_freq_allowed(&freq_list[i], go))
+			continue;
 		for (j = 0; j < msg->channel_list_len; j++) {
 			if (!msg->channel_list ||
 			    op_channel != msg->channel_list[j])
@@ -609,7 +647,8 @@
 static void p2p_check_pref_chan_recv(struct p2p_data *p2p, int go,
 				     struct p2p_device *dev,
 				     struct p2p_message *msg,
-				     unsigned freq_list[], unsigned int size)
+				     const struct weighted_pcl freq_list[],
+				     unsigned int size)
 {
 	u8 op_class, op_channel;
 	unsigned int oper_freq = 0, i, j;
@@ -625,11 +664,13 @@
 			oper_freq = p2p_channel_to_freq(
 				msg->pref_freq_list[2 * j],
 				msg->pref_freq_list[2 * j + 1]);
-			if (freq_list[i] != oper_freq)
+			if (freq_list[i].freq != oper_freq)
 				continue;
 			if (p2p_freq_to_channel(oper_freq, &op_class,
 						&op_channel) < 0)
 				continue; /* cannot happen */
+			if (!p2p_pref_freq_allowed(&freq_list[i], go))
+				break;
 			p2p->op_reg_class = op_class;
 			p2p->op_channel = op_channel;
 			os_memcpy(&p2p->channels, &p2p->cfg->channels,
@@ -652,7 +693,7 @@
 void p2p_check_pref_chan(struct p2p_data *p2p, int go,
 			 struct p2p_device *dev, struct p2p_message *msg)
 {
-	unsigned int freq_list[P2P_MAX_PREF_CHANNELS], size;
+	unsigned int size;
 	unsigned int i;
 	u8 op_class, op_channel;
 	char txt[100], *pos, *end;
@@ -669,25 +710,30 @@
 
 	/* Obtain our preferred frequency list from driver based on P2P role. */
 	size = P2P_MAX_PREF_CHANNELS;
-	if (p2p->cfg->get_pref_freq_list(p2p->cfg->cb_ctx, go, &size,
-					 freq_list))
+	if (p2p->cfg->get_pref_freq_list(p2p->cfg->cb_ctx, go,
+					 &p2p->num_pref_freq,
+					 p2p->pref_freq_list))
+		return;
+	size = p2p->num_pref_freq;
+	if (!size)
 		return;
 	/* Filter out frequencies that are not acceptable for P2P use */
 	i = 0;
 	while (i < size) {
-		if (p2p_freq_to_channel(freq_list[i], &op_class,
-					&op_channel) < 0 ||
+		if (p2p_freq_to_channel(p2p->pref_freq_list[i].freq,
+					&op_class, &op_channel) < 0 ||
 		    (!p2p_channels_includes(&p2p->cfg->channels,
 					    op_class, op_channel) &&
 		     (go || !p2p_channels_includes(&p2p->cfg->cli_channels,
 						   op_class, op_channel)))) {
 			p2p_dbg(p2p,
 				"Ignore local driver frequency preference %u MHz since it is not acceptable for P2P use (go=%d)",
-				freq_list[i], go);
+				p2p->pref_freq_list[i].freq, go);
 			if (size - i - 1 > 0)
-				os_memmove(&freq_list[i], &freq_list[i + 1],
+				os_memmove(&p2p->pref_freq_list[i],
+					   &p2p->pref_freq_list[i + 1],
 					   (size - i - 1) *
-					   sizeof(unsigned int));
+					   sizeof(struct weighted_pcl));
 			size--;
 			continue;
 		}
@@ -699,7 +745,8 @@
 	pos = txt;
 	end = pos + sizeof(txt);
 	for (i = 0; i < size; i++) {
-		res = os_snprintf(pos, end - pos, " %u", freq_list[i]);
+		res = os_snprintf(pos, end - pos, " %u",
+				  p2p->pref_freq_list[i].freq);
 		if (os_snprintf_error(end - pos, res))
 			break;
 		pos += res;
@@ -713,11 +760,14 @@
 	 * our preferred channel list.
 	 */
 	for (i = 0; i < size; i++) {
-		if (freq_list[i] == (unsigned int) dev->oper_freq)
+		if (p2p->pref_freq_list[i].freq ==
+		    (unsigned int) dev->oper_freq &&
+		    p2p_pref_freq_allowed(&p2p->pref_freq_list[i], go))
 			break;
 	}
 	if (i != size &&
-	    p2p_freq_to_channel(freq_list[i], &op_class, &op_channel) == 0) {
+	    p2p_freq_to_channel(p2p->pref_freq_list[i].freq, &op_class,
+				&op_channel) == 0) {
 		/* Peer operating channel preference matches our preference */
 		p2p->op_reg_class = op_class;
 		p2p->op_channel = op_channel;
@@ -735,9 +785,11 @@
 	  * _not_ included in the GO Negotiation Request or Invitation Request.
 	  */
 	if (msg->pref_freq_list_len == 0)
-		p2p_check_pref_chan_no_recv(p2p, go, dev, msg, freq_list, size);
+		p2p_check_pref_chan_no_recv(p2p, go, dev, msg,
+					    p2p->pref_freq_list, size);
 	else
-		p2p_check_pref_chan_recv(p2p, go, dev, msg, freq_list, size);
+		p2p_check_pref_chan_recv(p2p, go, dev, msg,
+					 p2p->pref_freq_list, size);
 }
 
 
@@ -1085,6 +1137,7 @@
 	struct p2p_channels res;
 	u8 group_capab;
 	size_t extra = 0;
+	bool is_6ghz_capab;
 
 	p2p_dbg(p2p, "Building GO Negotiation Confirm");
 
@@ -1128,7 +1181,9 @@
 		p2p_buf_add_operating_channel(buf, (const char *) resp_chan,
 					      resp_chan[3], resp_chan[4]);
 	p2p_channels_intersect(&p2p->channels, &peer->channels, &res);
-	p2p_buf_add_channel_list(buf, p2p->cfg->country, &res);
+	is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+		p2p_is_peer_6ghz_capab(p2p, peer->info.p2p_device_addr);
+	p2p_buf_add_channel_list(buf, p2p->cfg->country, &res, is_6ghz_capab);
 	if (go) {
 		p2p_buf_add_group_id(buf, p2p->cfg->dev_addr, p2p->ssid,
 				     p2p->ssid_len);
diff --git a/src/p2p/p2p_i.h b/src/p2p/p2p_i.h
index b5e5c2b..bebc5e2 100644
--- a/src/p2p/p2p_i.h
+++ b/src/p2p/p2p_i.h
@@ -10,6 +10,7 @@
 #define P2P_I_H
 
 #include "utils/list.h"
+#include "drivers/driver.h"
 #include "p2p.h"
 #include "ap/ap_config.h"
 
@@ -553,7 +554,7 @@
 
 	struct wpabuf **vendor_elem;
 
-	unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
+	struct weighted_pcl pref_freq_list[P2P_MAX_PREF_CHANNELS];
 	unsigned int num_pref_freq;
 
 	/* Override option for preferred operating channel in GO Negotiation */
@@ -769,7 +770,7 @@
 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
 				   u8 reg_class, u8 channel);
 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
-			      struct p2p_channels *chan);
+			      struct p2p_channels *chan, bool is_6ghz_capab);
 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
 				u8 client_timeout);
 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr);
@@ -800,7 +801,7 @@
 int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id,
 		     int all_attr);
 void p2p_buf_add_pref_channel_list(struct wpabuf *buf,
-				   const unsigned int *preferred_freq_list,
+				   const struct weighted_pcl *pref_freq_list,
 				   unsigned int size);
 
 /* p2p_sd.c */
@@ -902,6 +903,10 @@
 void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx);
 int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev,
 			  u8 *status);
+void p2p_pref_channel_filter(const struct p2p_channels *a,
+			     const struct weighted_pcl *freq_list,
+			     unsigned int num_channels,
+			     struct p2p_channels *res, bool go);
 void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
 PRINTF_FORMAT(2, 3);
 void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
diff --git a/src/p2p/p2p_invitation.c b/src/p2p/p2p_invitation.c
index ab00722..bca5b90 100644
--- a/src/p2p/p2p_invitation.c
+++ b/src/p2p/p2p_invitation.c
@@ -24,6 +24,7 @@
 	u8 *len;
 	const u8 *dev_addr;
 	size_t extra = 0;
+	bool is_6ghz_capab;
 
 #ifdef CONFIG_WIFI_DISPLAY
 	struct wpabuf *wfd_ie = p2p->wfd_ie_invitation;
@@ -74,7 +75,10 @@
 					      p2p->op_channel);
 	if (p2p->inv_bssid_set)
 		p2p_buf_add_group_bssid(buf, p2p->inv_bssid);
-	p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels);
+	is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+		p2p_is_peer_6ghz_capab(p2p, peer->info.p2p_device_addr);
+	p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels,
+				 is_6ghz_capab);
 	if (go_dev_addr)
 		dev_addr = go_dev_addr;
 	else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT)
@@ -155,8 +159,14 @@
 					      reg_class, channel);
 	if (group_bssid)
 		p2p_buf_add_group_bssid(buf, group_bssid);
-	if (channels)
-		p2p_buf_add_channel_list(buf, p2p->cfg->country, channels);
+	if (channels) {
+		bool is_6ghz_capab;
+
+		is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+			p2p_is_peer_6ghz_capab(p2p, peer->info.p2p_device_addr);
+		p2p_buf_add_channel_list(buf, p2p->cfg->country, channels,
+					 is_6ghz_capab);
+	}
 	p2p_buf_update_ie_hdr(buf, len);
 
 #ifdef CONFIG_WIFI_DISPLAY
diff --git a/src/p2p/p2p_pd.c b/src/p2p/p2p_pd.c
index 338b47e..1a78e14 100644
--- a/src/p2p/p2p_pd.c
+++ b/src/p2p/p2p_pd.c
@@ -124,9 +124,15 @@
 		}
 
 		if (shared_group ||
-		    (prov->conncap & (P2PS_SETUP_CLIENT | P2PS_SETUP_NEW)))
+		    (prov->conncap & (P2PS_SETUP_CLIENT | P2PS_SETUP_NEW))) {
+			bool is_6ghz_capab;
+
+			is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+				p2p_is_peer_6ghz_capab(
+					p2p, dev->info.p2p_device_addr);
 			p2p_buf_add_channel_list(buf, p2p->cfg->country,
-						 &p2p->channels);
+						 &p2p->channels, is_6ghz_capab);
+		}
 
 		if ((shared_group && !is_zero_ether_addr(intended_addr)) ||
 		    (prov->conncap & (P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW)))
@@ -356,9 +362,15 @@
 		}
 
 		if (persist ||
-		    (conncap & (P2PS_SETUP_CLIENT | P2PS_SETUP_GROUP_OWNER)))
+		    (conncap & (P2PS_SETUP_CLIENT | P2PS_SETUP_GROUP_OWNER))) {
+			bool is_6ghz_capab;
+
+			is_6ghz_capab = is_p2p_6ghz_capable(p2p) &&
+				p2p_is_peer_6ghz_capab(
+					p2p, dev->info.p2p_device_addr);
 			p2p_buf_add_channel_list(buf, p2p->cfg->country,
-						 &p2p->channels);
+						 &p2p->channels, is_6ghz_capab);
+		}
 
 		if (!persist && conncap)
 			p2p_buf_add_connection_capability(buf, conncap);
diff --git a/src/p2p/p2p_utils.c b/src/p2p/p2p_utils.c
index a203606..c1f0084 100644
--- a/src/p2p/p2p_utils.c
+++ b/src/p2p/p2p_utils.c
@@ -519,14 +519,14 @@
 }
 
 
-int p2p_remove_6ghz_channels(unsigned int *pref_freq_list, int size)
+int p2p_remove_6ghz_channels(struct weighted_pcl *pref_freq_list, int size)
 {
 	int i;
 
 	for (i = 0; i < size; i++) {
-		if (is_6ghz_freq(pref_freq_list[i])) {
+		if (is_6ghz_freq(pref_freq_list[i].freq)) {
 			wpa_printf(MSG_DEBUG, "P2P: Remove 6 GHz channel %d",
-				   pref_freq_list[i]);
+				   pref_freq_list[i].freq);
 			size--;
 			os_memmove(&pref_freq_list[i], &pref_freq_list[i + 1],
 				   (size - i) * sizeof(pref_freq_list[0]));
@@ -535,3 +535,79 @@
 	}
 	return i;
 }
+
+
+/**
+ * p2p_pref_freq_allowed - Based on the flags set, check if the preferred
+ * frequency is allowed
+ * @freq_list: Weighted preferred channel list
+ * @go: Whether the local device is the group owner
+ * Returns: Whether the preferred frequency is allowed
+ */
+bool p2p_pref_freq_allowed(const struct weighted_pcl *freq_list, bool go)
+{
+	if (freq_list->flag & WEIGHTED_PCL_EXCLUDE)
+		return false;
+	if (!(freq_list->flag & WEIGHTED_PCL_CLI) && !go)
+		return false;
+	if (!(freq_list->flag & WEIGHTED_PCL_GO) && go)
+		return false;
+	return true;
+}
+
+
+static int p2p_check_pref_channel(int channel, u8 op_class,
+				  const struct weighted_pcl *freq_list,
+				  unsigned int num_channels, bool go)
+{
+	unsigned int i;
+
+	/* If the channel is present in the preferred channel list, check if it
+	 * has appropriate flags for the role.
+	 */
+	for (i = 0; i < num_channels; i++) {
+		if (p2p_channel_to_freq(op_class, channel) !=
+		    (int) freq_list[i].freq)
+			continue;
+		if (!p2p_pref_freq_allowed(&freq_list[i], go))
+			return -1;
+		break;
+	}
+
+	return 0;
+}
+
+
+void p2p_pref_channel_filter(const struct p2p_channels *p2p_chan,
+			     const struct weighted_pcl *freq_list,
+			     unsigned int num_channels,
+			     struct p2p_channels *res, bool go)
+{
+	size_t i, j;
+
+	os_memset(res, 0, sizeof(*res));
+
+	for (i = 0; i < p2p_chan->reg_classes; i++) {
+		const struct p2p_reg_class *reg = &p2p_chan->reg_class[i];
+		struct p2p_reg_class *res_reg = &res->reg_class[i];
+
+		if (num_channels > 0) {
+			for (j = 0; j < reg->channels; j++) {
+				if (p2p_check_pref_channel(reg->channel[j],
+							   reg->reg_class,
+							   freq_list,
+							   num_channels,
+							   go) < 0)
+					continue;
+
+				res_reg->channel[res_reg->channels++] =
+					reg->channel[j];
+			}
+		}
+
+		if (res_reg->channels == 0)
+			continue;
+		res->reg_classes++;
+		res_reg->reg_class = reg->reg_class;
+	}
+}