[PATCH 23.05 1/2] mac80211: backport ieee80211_vif_is_mld()

Rafał Miłecki zajec5 at gmail.com
Fri Apr 19 04:37:21 PDT 2024


From: Rafał Miłecki <rafal at milecki.pl>

It's needed by some drivers, e.g. mt7925, see:
mt7925/mcu.c:2181:23: error: implicit declaration of function 'ieee80211_vif_is_mld' [-Werror=implicit-function-declaration]

Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
 ...-mac80211-warn-only-once-on-AP-probe.patch |  32 ++
 ...6.5-wifi-mac80211-HW-restart-for-MLO.patch | 171 ++++++
 ...1-implement-proper-AP-MLD-HW-restart.patch |  84 +++
 ...d-getter-functions-for-vif-MLD-state.patch | 538 ++++++++++++++++++
 4 files changed, 825 insertions(+)
 create mode 100644 package/kernel/mac80211/patches/subsys/346-v6.4-wifi-mac80211-warn-only-once-on-AP-probe.patch
 create mode 100644 package/kernel/mac80211/patches/subsys/347-v6.5-wifi-mac80211-HW-restart-for-MLO.patch
 create mode 100644 package/kernel/mac80211/patches/subsys/348-v6.5-wifi-mac80211-implement-proper-AP-MLD-HW-restart.patch
 create mode 100644 package/kernel/mac80211/patches/subsys/349-v6.5-wifi-mac80211-Add-getter-functions-for-vif-MLD-state.patch

diff --git a/package/kernel/mac80211/patches/subsys/346-v6.4-wifi-mac80211-warn-only-once-on-AP-probe.patch b/package/kernel/mac80211/patches/subsys/346-v6.4-wifi-mac80211-warn-only-once-on-AP-probe.patch
new file mode 100644
index 0000000000..3844ae6f7f
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/346-v6.4-wifi-mac80211-warn-only-once-on-AP-probe.patch
@@ -0,0 +1,32 @@
+From a1e91ef92392e5da15a1a16f8545ede2c02f7049 Mon Sep 17 00:00:00 2001
+From: Johannes Berg <johannes.berg at intel.com>
+Date: Wed, 1 Mar 2023 12:09:24 +0200
+Subject: [PATCH] wifi: mac80211: warn only once on AP probe
+
+We should perhaps support this API for MLO, but it's not
+clear that it makes sense, in any case then we'd have to
+update it to probe the correct BSS.
+
+For now, if it happens, warn only once so that we don't
+get flooded with messages if the driver misbehaves and
+calls this.
+
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+Signed-off-by: Gregory Greenman <gregory.greenman at intel.com>
+Link: https://lore.kernel.org/r/20230301115906.1c8499b6fbe6.I1a76a2be3b42ff93904870ac069f0319507adc23@changeid
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+---
+ net/mac80211/mlme.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -3233,7 +3233,7 @@ static void ieee80211_mgd_probe_ap(struc
+ 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ 	bool already = false;
+ 
+-	if (WARN_ON(sdata->vif.valid_links))
++	if (WARN_ON_ONCE(sdata->vif.valid_links))
+ 		return;
+ 
+ 	if (!ieee80211_sdata_running(sdata))
diff --git a/package/kernel/mac80211/patches/subsys/347-v6.5-wifi-mac80211-HW-restart-for-MLO.patch b/package/kernel/mac80211/patches/subsys/347-v6.5-wifi-mac80211-HW-restart-for-MLO.patch
new file mode 100644
index 0000000000..d61f583bca
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/347-v6.5-wifi-mac80211-HW-restart-for-MLO.patch
@@ -0,0 +1,171 @@
+From acb8bca343f8d5b8697d027771abf8a371580d53 Mon Sep 17 00:00:00 2001
+From: Johannes Berg <johannes.berg at intel.com>
+Date: Thu, 4 May 2023 16:45:05 +0300
+Subject: [PATCH] wifi: mac80211: HW restart for MLO
+
+Implement proper reconfiguration for interfaces that are
+doing MLO, in order to be able to recover from HW restart
+correctly.
+
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+Signed-off-by: Gregory Greenman <gregory.greenman at intel.com>
+Link: https://lore.kernel.org/r/20230504134511.828474-6-gregory.greenman@intel.com
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+---
+ net/mac80211/util.c | 107 ++++++++++++++++++++++++++++++--------------
+ 1 file changed, 73 insertions(+), 34 deletions(-)
+
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -2493,21 +2493,55 @@ int ieee80211_reconfig(struct ieee80211_
+ 
+ 	/* Finally also reconfigure all the BSS information */
+ 	list_for_each_entry(sdata, &local->interfaces, list) {
++		/* common change flags for all interface types - link only */
++		u32 changed = BSS_CHANGED_ERP_CTS_PROT |
++			      BSS_CHANGED_ERP_PREAMBLE |
++			      BSS_CHANGED_ERP_SLOT |
++			      BSS_CHANGED_HT |
++			      BSS_CHANGED_BASIC_RATES |
++			      BSS_CHANGED_BEACON_INT |
++			      BSS_CHANGED_BSSID |
++			      BSS_CHANGED_CQM |
++			      BSS_CHANGED_QOS |
++			      BSS_CHANGED_TXPOWER |
++			      BSS_CHANGED_MCAST_RATE;
++		struct ieee80211_link_data *link = NULL;
+ 		unsigned int link_id;
+-		u32 changed;
++		u32 active_links = 0;
+ 
+ 		if (!ieee80211_sdata_running(sdata))
+ 			continue;
+ 
+ 		sdata_lock(sdata);
++		if (sdata->vif.valid_links) {
++			struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS] = {
++				[0] = &sdata->vif.bss_conf,
++			};
++
++			if (sdata->vif.type == NL80211_IFTYPE_STATION) {
++				/* start with a single active link */
++				active_links = sdata->vif.active_links;
++				link_id = ffs(active_links) - 1;
++				sdata->vif.active_links = BIT(link_id);
++			}
++
++			drv_change_vif_links(local, sdata, 0,
++					     sdata->vif.active_links,
++					     old);
++		}
++
+ 		for (link_id = 0;
+ 		     link_id < ARRAY_SIZE(sdata->vif.link_conf);
+ 		     link_id++) {
+-			struct ieee80211_link_data *link;
++			if (sdata->vif.valid_links &&
++			    !(sdata->vif.active_links & BIT(link_id)))
++				continue;
+ 
+ 			link = sdata_dereference(sdata->link[link_id], sdata);
+-			if (link)
+-				ieee80211_assign_chanctx(local, sdata, link);
++			if (!link)
++				continue;
++
++			ieee80211_assign_chanctx(local, sdata, link);
+ 		}
+ 
+ 		switch (sdata->vif.type) {
+@@ -2527,42 +2561,42 @@ int ieee80211_reconfig(struct ieee80211_
+ 					    &sdata->deflink.tx_conf[i]);
+ 			break;
+ 		}
+-		sdata_unlock(sdata);
+-
+-		/* common change flags for all interface types */
+-		changed = BSS_CHANGED_ERP_CTS_PROT |
+-			  BSS_CHANGED_ERP_PREAMBLE |
+-			  BSS_CHANGED_ERP_SLOT |
+-			  BSS_CHANGED_HT |
+-			  BSS_CHANGED_BASIC_RATES |
+-			  BSS_CHANGED_BEACON_INT |
+-			  BSS_CHANGED_BSSID |
+-			  BSS_CHANGED_CQM |
+-			  BSS_CHANGED_QOS |
+-			  BSS_CHANGED_IDLE |
+-			  BSS_CHANGED_TXPOWER |
+-			  BSS_CHANGED_MCAST_RATE;
+ 
+ 		if (sdata->vif.bss_conf.mu_mimo_owner)
+ 			changed |= BSS_CHANGED_MU_GROUPS;
+ 
++		if (!sdata->vif.valid_links)
++			changed |= BSS_CHANGED_IDLE;
++
+ 		switch (sdata->vif.type) {
+ 		case NL80211_IFTYPE_STATION:
+-			changed |= BSS_CHANGED_ASSOC |
+-				   BSS_CHANGED_ARP_FILTER |
+-				   BSS_CHANGED_PS;
+-
+-			/* Re-send beacon info report to the driver */
+-			if (sdata->deflink.u.mgd.have_beacon)
+-				changed |= BSS_CHANGED_BEACON_INFO;
+-
+-			if (sdata->vif.bss_conf.max_idle_period ||
+-			    sdata->vif.bss_conf.protected_keep_alive)
+-				changed |= BSS_CHANGED_KEEP_ALIVE;
+-
+-			sdata_lock(sdata);
+-			ieee80211_bss_info_change_notify(sdata, changed);
+-			sdata_unlock(sdata);
++			if (!sdata->vif.valid_links) {
++				changed |= BSS_CHANGED_ASSOC |
++					   BSS_CHANGED_ARP_FILTER |
++					   BSS_CHANGED_PS;
++
++				/* Re-send beacon info report to the driver */
++				if (sdata->deflink.u.mgd.have_beacon)
++					changed |= BSS_CHANGED_BEACON_INFO;
++
++				if (sdata->vif.bss_conf.max_idle_period ||
++				    sdata->vif.bss_conf.protected_keep_alive)
++					changed |= BSS_CHANGED_KEEP_ALIVE;
++
++				if (sdata->vif.bss_conf.eht_puncturing)
++					changed |= BSS_CHANGED_EHT_PUNCTURING;
++
++				ieee80211_bss_info_change_notify(sdata,
++								 changed);
++			} else if (!WARN_ON(!link)) {
++				ieee80211_link_info_change_notify(sdata, link,
++								  changed);
++				changed = BSS_CHANGED_ASSOC |
++					  BSS_CHANGED_IDLE |
++					  BSS_CHANGED_PS |
++					  BSS_CHANGED_ARP_FILTER;
++				ieee80211_vif_cfg_change_notify(sdata, changed);
++			}
+ 			break;
+ 		case NL80211_IFTYPE_OCB:
+ 			changed |= BSS_CHANGED_OCB;
+@@ -2597,6 +2631,7 @@ int ieee80211_reconfig(struct ieee80211_
+ 		case NL80211_IFTYPE_NAN:
+ 			res = ieee80211_reconfig_nan(sdata);
+ 			if (res < 0) {
++				sdata_unlock(sdata);
+ 				ieee80211_handle_reconfig_failure(local);
+ 				return res;
+ 			}
+@@ -2614,6 +2649,10 @@ int ieee80211_reconfig(struct ieee80211_
+ 			WARN_ON(1);
+ 			break;
+ 		}
++		sdata_unlock(sdata);
++
++		if (active_links)
++			ieee80211_set_active_links(&sdata->vif, active_links);
+ 	}
+ 
+ 	ieee80211_recalc_ps(local);
diff --git a/package/kernel/mac80211/patches/subsys/348-v6.5-wifi-mac80211-implement-proper-AP-MLD-HW-restart.patch b/package/kernel/mac80211/patches/subsys/348-v6.5-wifi-mac80211-implement-proper-AP-MLD-HW-restart.patch
new file mode 100644
index 0000000000..f811c5d617
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/348-v6.5-wifi-mac80211-implement-proper-AP-MLD-HW-restart.patch
@@ -0,0 +1,84 @@
+From 61403414e1719f929386dda8fb954bb302628ef3 Mon Sep 17 00:00:00 2001
+From: Johannes Berg <johannes.berg at intel.com>
+Date: Thu, 4 May 2023 16:45:11 +0300
+Subject: [PATCH] wifi: mac80211: implement proper AP MLD HW restart
+
+Previously, I didn't implement restarting here at all if the
+interface is an MLD, so it only worked for non-MLO. Add the
+needed code to restart an AP MLD correctly.
+
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+Signed-off-by: Gregory Greenman <gregory.greenman at intel.com>
+Link: https://lore.kernel.org/r/20230504134511.828474-12-gregory.greenman@intel.com
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+---
+ net/mac80211/util.c | 44 +++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 43 insertions(+), 1 deletion(-)
+
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -2344,6 +2344,35 @@ static int ieee80211_reconfig_nan(struct
+ 	return 0;
+ }
+ 
++static void ieee80211_reconfig_ap_links(struct ieee80211_local *local,
++					struct ieee80211_sub_if_data *sdata,
++					u32 changed)
++{
++	int link_id;
++
++	for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
++		struct ieee80211_link_data *link;
++
++		if (!(sdata->vif.active_links & BIT(link_id)))
++			continue;
++
++		link = sdata_dereference(sdata->link[link_id], sdata);
++		if (!link)
++			continue;
++
++		if (rcu_access_pointer(link->u.ap.beacon))
++			drv_start_ap(local, sdata, link->conf);
++
++		if (!link->conf->enable_beacon)
++			continue;
++
++		changed |= BSS_CHANGED_BEACON |
++			   BSS_CHANGED_BEACON_ENABLED;
++
++		ieee80211_link_info_change_notify(sdata, link, changed);
++	}
++}
++
+ int ieee80211_reconfig(struct ieee80211_local *local)
+ {
+ 	struct ieee80211_hw *hw = &local->hw;
+@@ -2606,7 +2635,13 @@ int ieee80211_reconfig(struct ieee80211_
+ 			changed |= BSS_CHANGED_IBSS;
+ 			fallthrough;
+ 		case NL80211_IFTYPE_AP:
+-			changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS;
++			changed |= BSS_CHANGED_P2P_PS;
++
++			if (sdata->vif.valid_links)
++				ieee80211_vif_cfg_change_notify(sdata,
++								BSS_CHANGED_SSID);
++			else
++				changed |= BSS_CHANGED_SSID;
+ 
+ 			if (sdata->vif.bss_conf.ftm_responder == 1 &&
+ 			    wiphy_ext_feature_isset(sdata->local->hw.wiphy,
+@@ -2616,6 +2651,13 @@ int ieee80211_reconfig(struct ieee80211_
+ 			if (sdata->vif.type == NL80211_IFTYPE_AP) {
+ 				changed |= BSS_CHANGED_AP_PROBE_RESP;
+ 
++				if (sdata->vif.valid_links) {
++					ieee80211_reconfig_ap_links(local,
++								    sdata,
++								    changed);
++					break;
++				}
++
+ 				if (rcu_access_pointer(sdata->deflink.u.ap.beacon))
+ 					drv_start_ap(local, sdata,
+ 						     sdata->deflink.conf);
diff --git a/package/kernel/mac80211/patches/subsys/349-v6.5-wifi-mac80211-Add-getter-functions-for-vif-MLD-state.patch b/package/kernel/mac80211/patches/subsys/349-v6.5-wifi-mac80211-Add-getter-functions-for-vif-MLD-state.patch
new file mode 100644
index 0000000000..25f8a7cb57
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/349-v6.5-wifi-mac80211-Add-getter-functions-for-vif-MLD-state.patch
@@ -0,0 +1,538 @@
+From f1871abd27641c020298b5c7654e1d8341f22e5f Mon Sep 17 00:00:00 2001
+From: Ilan Peer <ilan.peer at intel.com>
+Date: Thu, 8 Jun 2023 16:36:08 +0300
+Subject: [PATCH] wifi: mac80211: Add getter functions for vif MLD state
+
+As a preparation to support disabled/dormant links, add the
+following function:
+
+- ieee80211_vif_usable_links(): returns the bitmap of the links
+  that can be activated. Use this function in all the places that
+  the bitmap of the usable links is needed.
+
+- ieee80211_vif_is_mld(): returns true iff the vif is an MLD.
+  Use this function in all the places where an indication that the
+  connection is a MLD is needed.
+
+Signed-off-by: Ilan Peer <ilan.peer at intel.com>
+Signed-off-by: Gregory Greenman <gregory.greenman at intel.com>
+Link: https://lore.kernel.org/r/20230608163202.86e3351da1fc.If6fe3a339fda2019f13f57ff768ecffb711b710a@changeid
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+---
+ include/net/mac80211.h     | 21 +++++++++++++++++++
+ net/mac80211/cfg.c         |  4 ++--
+ net/mac80211/debug.h       |  8 +++----
+ net/mac80211/ieee80211_i.h |  2 +-
+ net/mac80211/iface.c       |  4 ++--
+ net/mac80211/link.c        |  4 ++--
+ net/mac80211/mlme.c        | 43 +++++++++++++++++++-------------------
+ net/mac80211/rx.c          |  2 +-
+ net/mac80211/tx.c          | 22 +++++++++----------
+ net/mac80211/util.c        | 14 ++++++-------
+ 10 files changed, 73 insertions(+), 51 deletions(-)
+
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -1927,6 +1927,27 @@ struct ieee80211_vif {
+ 	u8 drv_priv[] __aligned(sizeof(void *));
+ };
+ 
++/**
++ * ieee80211_vif_usable_links - Return the usable links for the vif
++ * @vif: the vif for which the usable links are requested
++ * Return: the usable link bitmap
++ */
++static inline u16 ieee80211_vif_usable_links(const struct ieee80211_vif *vif)
++{
++	return vif->valid_links;
++}
++
++/**
++ * ieee80211_vif_is_mld - Returns true iff the vif is an MLD one
++ * @vif: the vif
++ * Return: %true if the vif is an MLD, %false otherwise.
++ */
++static inline bool ieee80211_vif_is_mld(const struct ieee80211_vif *vif)
++{
++	/* valid_links != 0 indicates this vif is an MLD */
++	return vif->valid_links != 0;
++}
++
+ #define for_each_vif_active_link(vif, link, link_id)				\
+ 	for (link_id = 0; link_id < ARRAY_SIZE((vif)->link_conf); link_id++)	\
+ 		if ((!(vif)->active_links ||					\
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -35,7 +35,7 @@ ieee80211_link_or_deflink(struct ieee802
+ 		 * the return value at all (if it's not a pairwise key),
+ 		 * so in that case (require_valid==false) don't error.
+ 		 */
+-		if (require_valid && sdata->vif.valid_links)
++		if (require_valid && ieee80211_vif_is_mld(&sdata->vif))
+ 			return ERR_PTR(-EINVAL);
+ 
+ 		return &sdata->deflink;
+@@ -228,7 +228,7 @@ static int ieee80211_change_iface(struct
+ 			return 0;
+ 
+ 		/* FIXME: no support for 4-addr MLO yet */
+-		if (sdata->vif.valid_links)
++		if (ieee80211_vif_is_mld(&sdata->vif))
+ 			return -EOPNOTSUPP;
+ 
+ 		sdata->u.mgd.use_4addr = params->use_4addr;
+--- a/net/mac80211/debug.h
++++ b/net/mac80211/debug.h
+@@ -1,7 +1,7 @@
+ /* SPDX-License-Identifier: GPL-2.0 */
+ /*
+  * Portions
+- * Copyright (C) 2022 Intel Corporation
++ * Copyright (C) 2022 - 2023 Intel Corporation
+  */
+ #ifndef __MAC80211_DEBUG_H
+ #define __MAC80211_DEBUG_H
+@@ -136,7 +136,7 @@ do {									\
+ 
+ #define link_info(link, fmt, ...)					\
+ 	do {								\
+-		if ((link)->sdata->vif.valid_links)			\
++		if (ieee80211_vif_is_mld(&(link)->sdata->vif))          \
+ 			_sdata_info((link)->sdata, "[link %d] " fmt,	\
+ 				    (link)->link_id,			\
+ 				    ##__VA_ARGS__);			\
+@@ -145,7 +145,7 @@ do {									\
+ 	} while (0)
+ #define link_err(link, fmt, ...)					\
+ 	do {								\
+-		if ((link)->sdata->vif.valid_links)			\
++		if (ieee80211_vif_is_mld(&(link)->sdata->vif))          \
+ 			_sdata_err((link)->sdata, "[link %d] " fmt,	\
+ 				   (link)->link_id,			\
+ 				   ##__VA_ARGS__);			\
+@@ -154,7 +154,7 @@ do {									\
+ 	} while (0)
+ #define link_dbg(link, fmt, ...)					\
+ 	do {								\
+-		if ((link)->sdata->vif.valid_links)			\
++		if (ieee80211_vif_is_mld(&(link)->sdata->vif))          \
+ 			_sdata_dbg(1, (link)->sdata, "[link %d] " fmt,	\
+ 				   (link)->link_id,			\
+ 				   ##__VA_ARGS__);			\
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -1596,7 +1596,7 @@ ieee80211_get_sband(struct ieee80211_sub
+ 	struct ieee80211_chanctx_conf *chanctx_conf;
+ 	enum nl80211_band band;
+ 
+-	WARN_ON(sdata->vif.valid_links);
++	WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
+ 
+ 	rcu_read_lock();
+ 	chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -521,7 +521,7 @@ static void ieee80211_do_stop(struct iee
+ 	cancel_work_sync(&sdata->recalc_smps);
+ 
+ 	sdata_lock(sdata);
+-	WARN(sdata->vif.valid_links,
++	WARN(ieee80211_vif_is_mld(&sdata->vif),
+ 	     "destroying interface with valid links 0x%04x\n",
+ 	     sdata->vif.valid_links);
+ 
+@@ -1818,7 +1818,7 @@ static int ieee80211_runtime_change_ifty
+ 		return -EBUSY;
+ 
+ 	/* for now, don't support changing while links exist */
+-	if (sdata->vif.valid_links)
++	if (ieee80211_vif_is_mld(&sdata->vif))
+ 		return -EBUSY;
+ 
+ 	switch (sdata->vif.type) {
+--- a/net/mac80211/link.c
++++ b/net/mac80211/link.c
+@@ -324,7 +324,7 @@ static int _ieee80211_set_active_links(s
+ 		return -EINVAL;
+ 
+ 	/* cannot activate links that don't exist */
+-	if (active_links & ~sdata->vif.valid_links)
++	if (active_links & ~ieee80211_vif_usable_links(&sdata->vif))
+ 		return -EINVAL;
+ 
+ 	/* nothing to do */
+@@ -463,7 +463,7 @@ void ieee80211_set_active_links_async(st
+ 		return;
+ 
+ 	/* cannot activate links that don't exist */
+-	if (active_links & ~sdata->vif.valid_links)
++	if (active_links & ~ieee80211_vif_usable_links(&sdata->vif))
+ 		return;
+ 
+ 	/* nothing to do */
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -1281,7 +1281,7 @@ static void ieee80211_assoc_add_ml_elem(
+ 	u8 *ml_elem_len;
+ 	void *capab_pos;
+ 
+-	if (!sdata->vif.valid_links)
++	if (!ieee80211_vif_is_mld(&sdata->vif))
+ 		return;
+ 
+ 	ift_ext_capa = cfg80211_get_iftype_ext_capa(local->hw.wiphy,
+@@ -1455,7 +1455,7 @@ static int ieee80211_send_assoc(struct i
+ 			capab |= WLAN_CAPABILITY_PRIVACY;
+ 	}
+ 
+-	if (sdata->vif.valid_links) {
++	if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 		/* consider the multi-link element with STA profile */
+ 		size += sizeof(struct ieee80211_multi_link_elem);
+ 		/* max common info field in basic multi-link element */
+@@ -1786,7 +1786,7 @@ void ieee80211_chswitch_done(struct ieee
+ 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ 
+-	if (WARN_ON(sdata->vif.valid_links))
++	if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif)))
+ 		success = false;
+ 
+ 	trace_api_chswitch_done(sdata, success);
+@@ -2849,7 +2849,7 @@ static void ieee80211_set_associated(str
+ 	if (vif_cfg->arp_addr_cnt)
+ 		vif_changed |= BSS_CHANGED_ARP_FILTER;
+ 
+-	if (sdata->vif.valid_links) {
++	if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 		for (link_id = 0;
+ 		     link_id < IEEE80211_MLD_MAX_NUM_LINKS;
+ 		     link_id++) {
+@@ -2880,7 +2880,7 @@ static void ieee80211_set_associated(str
+ 	mutex_unlock(&local->iflist_mtx);
+ 
+ 	/* leave this here to not change ordering in non-MLO cases */
+-	if (!sdata->vif.valid_links)
++	if (!ieee80211_vif_is_mld(&sdata->vif))
+ 		ieee80211_recalc_smps(sdata, &sdata->deflink);
+ 	ieee80211_recalc_ps_vif(sdata);
+ 
+@@ -2976,7 +2976,7 @@ static void ieee80211_set_disassoc(struc
+ 	sta_info_flush(sdata);
+ 
+ 	/* finally reset all BSS / config parameters */
+-	if (!sdata->vif.valid_links)
++	if (!ieee80211_vif_is_mld(&sdata->vif))
+ 		changed |= ieee80211_reset_erp_info(sdata);
+ 
+ 	ieee80211_led_assoc(local, 0);
+@@ -3001,7 +3001,7 @@ static void ieee80211_set_disassoc(struc
+ 	       sizeof(sdata->vif.bss_conf.mu_group.membership));
+ 	memset(sdata->vif.bss_conf.mu_group.position, 0,
+ 	       sizeof(sdata->vif.bss_conf.mu_group.position));
+-	if (!sdata->vif.valid_links)
++	if (!ieee80211_vif_is_mld(&sdata->vif))
+ 		changed |= BSS_CHANGED_MU_GROUPS;
+ 	sdata->vif.bss_conf.mu_mimo_owner = false;
+ 
+@@ -3015,7 +3015,7 @@ static void ieee80211_set_disassoc(struc
+ 		changed |= BSS_CHANGED_ARP_FILTER;
+ 
+ 	sdata->vif.bss_conf.qos = false;
+-	if (!sdata->vif.valid_links) {
++	if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 		changed |= BSS_CHANGED_QOS;
+ 		/* The BSSID (not really interesting) and HT changed */
+ 		changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT;
+@@ -3185,7 +3185,7 @@ static void ieee80211_mgd_probe_ap_send(
+ 	u8 unicast_limit = max(1, max_probe_tries - 3);
+ 	struct sta_info *sta;
+ 
+-	if (WARN_ON(sdata->vif.valid_links))
++	if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif)))
+ 		return;
+ 
+ 	/*
+@@ -3233,7 +3233,7 @@ static void ieee80211_mgd_probe_ap(struc
+ 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ 	bool already = false;
+ 
+-	if (WARN_ON_ONCE(sdata->vif.valid_links))
++	if (WARN_ON_ONCE(ieee80211_vif_is_mld(&sdata->vif)))
+ 		return;
+ 
+ 	if (!ieee80211_sdata_running(sdata))
+@@ -3308,7 +3308,7 @@ struct sk_buff *ieee80211_ap_probereq_ge
+ 	int ssid_len;
+ 
+ 	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
+-		    sdata->vif.valid_links))
++		    ieee80211_vif_is_mld(&sdata->vif)))
+ 		return NULL;
+ 
+ 	sdata_assert_lock(sdata);
+@@ -3373,7 +3373,8 @@ static void __ieee80211_disconnect(struc
+ 	}
+ 
+ 	/* in MLO assume we have a link where we can TX the frame */
+-	tx = sdata->vif.valid_links || !sdata->deflink.csa_block_tx;
++	tx = ieee80211_vif_is_mld(&sdata->vif) ||
++		!sdata->deflink.csa_block_tx;
+ 
+ 	if (!ifmgd->driver_disconnect) {
+ 		unsigned int link_id;
+@@ -3572,7 +3573,7 @@ static void ieee80211_destroy_assoc_data
+ 			for (i = 0; i < ARRAY_SIZE(data.bss); i++)
+ 				data.bss[i] = assoc_data->link[i].bss;
+ 
+-			if (sdata->vif.valid_links)
++			if (ieee80211_vif_is_mld(&sdata->vif))
+ 				data.ap_mld_addr = assoc_data->ap_addr;
+ 
+ 			cfg80211_assoc_failure(sdata->dev, &data);
+@@ -4950,7 +4951,7 @@ static bool ieee80211_assoc_success(stru
+ 	if (WARN_ON(!sta))
+ 		goto out_err;
+ 
+-	if (sdata->vif.valid_links) {
++	if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 		u16 valid_links = 0;
+ 
+ 		for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
+@@ -4979,7 +4980,7 @@ static bool ieee80211_assoc_success(stru
+ 		if (WARN_ON(!link))
+ 			goto out_err;
+ 
+-		if (sdata->vif.valid_links)
++		if (ieee80211_vif_is_mld(&sdata->vif))
+ 			link_info(link,
+ 				  "local address %pM, AP link address %pM\n",
+ 				  link->conf->addr,
+@@ -5211,7 +5212,7 @@ static void ieee80211_rx_mgmt_assoc_resp
+ 			ifmgd->broken_ap = true;
+ 		}
+ 
+-		if (sdata->vif.valid_links) {
++		if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 			if (!elems->multi_link) {
+ 				sdata_info(sdata,
+ 					   "MLO association with %pM but no multi-link element in response!\n",
+@@ -5275,7 +5276,7 @@ static void ieee80211_rx_mgmt_assoc_resp
+ 				resp.uapsd_queues |= ieee80211_ac_to_qos_mask[ac];
+ 	}
+ 
+-	if (sdata->vif.valid_links) {
++	if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 		ether_addr_copy(ap_mld_addr, sdata->vif.cfg.ap_addr);
+ 		resp.ap_mld_addr = ap_mld_addr;
+ 	}
+@@ -5600,7 +5601,7 @@ static void ieee80211_rx_mgmt_beacon(str
+ 	rcu_read_unlock();
+ 
+ 	if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon &&
+-	    !WARN_ON(sdata->vif.valid_links) &&
++	    !WARN_ON(ieee80211_vif_is_mld(&sdata->vif)) &&
+ 	    ieee80211_rx_our_beacon(bssid, ifmgd->assoc_data->link[0].bss)) {
+ 		parse_params.bss = ifmgd->assoc_data->link[0].bss;
+ 		elems = ieee802_11_parse_elems_full(&parse_params);
+@@ -6289,7 +6290,7 @@ static void ieee80211_sta_bcn_mon_timer(
+ 	struct ieee80211_sub_if_data *sdata =
+ 		from_timer(sdata, t, u.mgd.bcn_mon_timer);
+ 
+-	if (WARN_ON(sdata->vif.valid_links))
++	if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif)))
+ 		return;
+ 
+ 	if (sdata->vif.bss_conf.csa_active &&
+@@ -6313,7 +6314,7 @@ static void ieee80211_sta_conn_mon_timer
+ 	struct sta_info *sta;
+ 	unsigned long timeout;
+ 
+-	if (WARN_ON(sdata->vif.valid_links))
++	if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif)))
+ 		return;
+ 
+ 	if (sdata->vif.bss_conf.csa_active &&
+@@ -6868,7 +6869,7 @@ int ieee80211_mgd_auth(struct ieee80211_
+ 	return 0;
+ 
+  err_clear:
+-	if (!sdata->vif.valid_links) {
++	if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 		eth_zero_addr(sdata->deflink.u.mgd.bssid);
+ 		ieee80211_link_info_change_notify(sdata, &sdata->deflink,
+ 						  BSS_CHANGED_BSSID);
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -2524,7 +2524,7 @@ bool ieee80211_is_our_addr(struct ieee80
+ 	if (ether_addr_equal(sdata->vif.addr, addr))
+ 		return true;
+ 
+-	if (!sdata->vif.valid_links)
++	if (!ieee80211_vif_is_mld(&sdata->vif))
+ 		return false;
+ 
+ 	for (link_id = 0; link_id < ARRAY_SIZE(sdata->vif.link_conf); link_id++) {
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -860,7 +860,7 @@ ieee80211_tx_h_sequence(struct ieee80211
+ 
+ 	/* SNS11 from 802.11be 10.3.2.14 */
+ 	if (unlikely(is_multicast_ether_addr(hdr->addr1) &&
+-		     info->control.vif->valid_links &&
++		     ieee80211_vif_is_mld(info->control.vif) &&
+ 		     info->control.vif->type == NL80211_IFTYPE_AP)) {
+ 		if (info->control.flags & IEEE80211_TX_CTRL_MCAST_MLO_FIRST_TX)
+ 			tx->sdata->mld_mcast_seq += 0x10;
+@@ -2629,7 +2629,7 @@ static struct sk_buff *ieee80211_build_h
+ 	ethertype = (skb->data[12] << 8) | skb->data[13];
+ 	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
+ 
+-	if (!sdata->vif.valid_links)
++	if (!ieee80211_vif_is_mld(&sdata->vif))
+ 		chanctx_conf =
+ 			rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+ 
+@@ -2646,7 +2646,7 @@ static struct sk_buff *ieee80211_build_h
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ 			wme_sta = sta->sta.wme;
+ 		}
+-		if (!sdata->vif.valid_links) {
++		if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 			struct ieee80211_sub_if_data *ap_sdata;
+ 
+ 			/* override chanctx_conf from AP (we don't have one) */
+@@ -2664,7 +2664,7 @@ static struct sk_buff *ieee80211_build_h
+ 		/* DA BSSID SA */
+ 		memcpy(hdr.addr1, skb->data, ETH_ALEN);
+ 
+-		if (sdata->vif.valid_links && sta && !sta->sta.mlo) {
++		if (ieee80211_vif_is_mld(&sdata->vif) && sta && !sta->sta.mlo) {
+ 			struct ieee80211_link_data *link;
+ 
+ 			link_id = sta->deflink.link_id;
+@@ -2816,7 +2816,7 @@ static struct sk_buff *ieee80211_build_h
+ 	}
+ 
+ 	if (!chanctx_conf) {
+-		if (!sdata->vif.valid_links) {
++		if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 			ret = -ENOTCONN;
+ 			goto free;
+ 		}
+@@ -3058,7 +3058,7 @@ void ieee80211_check_fast_xmit(struct st
+ 	    !ieee80211_hw_check(&local->hw, SUPPORTS_TX_FRAG))
+ 		goto out;
+ 
+-	if (!sdata->vif.valid_links) {
++	if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 		rcu_read_lock();
+ 		chanctx_conf =
+ 			rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+@@ -3129,7 +3129,7 @@ void ieee80211_check_fast_xmit(struct st
+ 		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
+ 		/* DA BSSID SA */
+ 		build.da_offs = offsetof(struct ieee80211_hdr, addr1);
+-		if (sta->sta.mlo || !sdata->vif.valid_links) {
++		if (sta->sta.mlo || !ieee80211_vif_is_mld(&sdata->vif)) {
+ 			memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
+ 		} else {
+ 			unsigned int link_id = sta->deflink.link_id;
+@@ -4499,7 +4499,7 @@ netdev_tx_t ieee80211_subif_start_xmit(s
+ 			__ieee80211_subif_start_xmit(skb, dev, 0,
+ 						     IEEE80211_TX_CTRL_MLO_LINK_UNSPEC,
+ 						     NULL);
+-	} else if (sdata->vif.valid_links &&
++	} else if (ieee80211_vif_is_mld(&sdata->vif) &&
+ 		   sdata->vif.type == NL80211_IFTYPE_AP &&
+ 		   !ieee80211_hw_check(&sdata->local->hw, MLO_MCAST_MULTI_LINK_TX)) {
+ 		ieee80211_mlo_multicast_tx(dev, skb);
+@@ -4777,7 +4777,7 @@ static bool ieee80211_tx_pending_skb(str
+ 
+ 	if (info->control.flags & IEEE80211_TX_INTCFL_NEED_TXPROCESSING) {
+ 		/* update band only for non-MLD */
+-		if (!sdata->vif.valid_links) {
++		if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 			chanctx_conf =
+ 				rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+ 			if (unlikely(!chanctx_conf)) {
+@@ -6000,7 +6000,7 @@ void __ieee80211_tx_skb_tid_band(struct
+ 	BUILD_BUG_ON(!FIELD_FIT(IEEE80211_TX_CTRL_MLO_LINK,
+ 				IEEE80211_LINK_UNSPECIFIED));
+ 
+-	if (!sdata->vif.valid_links) {
++	if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 		link = 0;
+ 	} else if (link_id >= 0) {
+ 		link = link_id;
+@@ -6046,7 +6046,7 @@ void ieee80211_tx_skb_tid(struct ieee802
+ 	enum nl80211_band band;
+ 
+ 	rcu_read_lock();
+-	if (!sdata->vif.valid_links) {
++	if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 		WARN_ON(link_id >= 0);
+ 		chanctx_conf =
+ 			rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -1701,7 +1701,7 @@ void ieee80211_send_auth(struct ieee8021
+ 	struct ieee80211_local *local = sdata->local;
+ 	struct sk_buff *skb;
+ 	struct ieee80211_mgmt *mgmt;
+-	bool multi_link = sdata->vif.valid_links;
++	bool multi_link = ieee80211_vif_is_mld(&sdata->vif);
+ 	struct {
+ 		u8 id;
+ 		u8 len;
+@@ -2542,7 +2542,7 @@ int ieee80211_reconfig(struct ieee80211_
+ 			continue;
+ 
+ 		sdata_lock(sdata);
+-		if (sdata->vif.valid_links) {
++		if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 			struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS] = {
+ 				[0] = &sdata->vif.bss_conf,
+ 			};
+@@ -2562,7 +2562,7 @@ int ieee80211_reconfig(struct ieee80211_
+ 		for (link_id = 0;
+ 		     link_id < ARRAY_SIZE(sdata->vif.link_conf);
+ 		     link_id++) {
+-			if (sdata->vif.valid_links &&
++			if (ieee80211_vif_is_mld(&sdata->vif) &&
+ 			    !(sdata->vif.active_links & BIT(link_id)))
+ 				continue;
+ 
+@@ -2594,12 +2594,12 @@ int ieee80211_reconfig(struct ieee80211_
+ 		if (sdata->vif.bss_conf.mu_mimo_owner)
+ 			changed |= BSS_CHANGED_MU_GROUPS;
+ 
+-		if (!sdata->vif.valid_links)
++		if (!ieee80211_vif_is_mld(&sdata->vif))
+ 			changed |= BSS_CHANGED_IDLE;
+ 
+ 		switch (sdata->vif.type) {
+ 		case NL80211_IFTYPE_STATION:
+-			if (!sdata->vif.valid_links) {
++			if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ 				changed |= BSS_CHANGED_ASSOC |
+ 					   BSS_CHANGED_ARP_FILTER |
+ 					   BSS_CHANGED_PS;
+@@ -2637,7 +2637,7 @@ int ieee80211_reconfig(struct ieee80211_
+ 		case NL80211_IFTYPE_AP:
+ 			changed |= BSS_CHANGED_P2P_PS;
+ 
+-			if (sdata->vif.valid_links)
++			if (ieee80211_vif_is_mld(&sdata->vif))
+ 				ieee80211_vif_cfg_change_notify(sdata,
+ 								BSS_CHANGED_SSID);
+ 			else
+@@ -2651,7 +2651,7 @@ int ieee80211_reconfig(struct ieee80211_
+ 			if (sdata->vif.type == NL80211_IFTYPE_AP) {
+ 				changed |= BSS_CHANGED_AP_PROBE_RESP;
+ 
+-				if (sdata->vif.valid_links) {
++				if (ieee80211_vif_is_mld(&sdata->vif)) {
+ 					ieee80211_reconfig_ap_links(local,
+ 								    sdata,
+ 								    changed);
-- 
2.35.3




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