[PATCH wireless-next 1/2] wifi: mac80211: fetch FILS discovery template by link ID
Raj Kumar Bhagat
raj.bhagat at oss.qualcomm.com
Thu Feb 19 11:42:41 PST 2026
From: Sriram R <quic_srirrama at quicinc.com>
Currently, the FILS discovery template is always fetched from the default
link of a virtual interface in both Multi-Link Operation (MLO) and
non-MLO cases. However, in the MLO case there is a need to fetch the FILS
discovery template from a specific link instead of the default link.
Hence, add support for fetching the FILS discovery template based on the
link ID from the corresponding link data.
Signed-off-by: Sriram R <quic_srirrama at quicinc.com>
Co-developed-by: Raj Kumar Bhagat <raj.bhagat at oss.qualcomm.com>
Signed-off-by: Raj Kumar Bhagat <raj.bhagat at oss.qualcomm.com>
---
drivers/net/wireless/ath/ath11k/mac.c | 2 +-
drivers/net/wireless/ath/ath12k/mac.c | 3 ++-
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 ++-
include/net/mac80211.h | 4 +++-
net/mac80211/tx.c | 20 +++++++++++++-------
6 files changed, 22 insertions(+), 12 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 4dfd08b58416..4776bb6fc889 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -3305,7 +3305,7 @@ static int ath11k_mac_fils_discovery(struct ath11k_vif *arvif,
if (info->fils_discovery.max_interval) {
interval = info->fils_discovery.max_interval;
- tmpl = ieee80211_get_fils_discovery_tmpl(ar->hw, arvif->vif);
+ tmpl = ieee80211_get_fils_discovery_tmpl(ar->hw, arvif->vif, 0);
if (tmpl)
ret = ath11k_wmi_fils_discovery_tmpl(ar, arvif->vdev_id,
tmpl);
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 68431a0e128e..34f82cda4197 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -4311,7 +4311,8 @@ static int ath12k_mac_fils_discovery(struct ath12k_link_vif *arvif,
if (info->fils_discovery.max_interval) {
interval = info->fils_discovery.max_interval;
- tmpl = ieee80211_get_fils_discovery_tmpl(hw, vif);
+ tmpl = ieee80211_get_fils_discovery_tmpl(hw, vif,
+ info->link_id);
if (tmpl)
ret = ath12k_wmi_fils_discovery_tmpl(ar, arvif->vdev_id,
tmpl);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 00bff4d3aab8..83ce06857a1e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -1977,7 +1977,7 @@ mt7915_mcu_add_inband_discov(struct mt7915_dev *dev, struct ieee80211_vif *vif,
if (changed & BSS_CHANGED_FILS_DISCOVERY) {
interval = vif->bss_conf.fils_discovery.max_interval;
- skb = ieee80211_get_fils_discovery_tmpl(hw, vif);
+ skb = ieee80211_get_fils_discovery_tmpl(hw, vif, 0);
} else if (changed & BSS_CHANGED_UNSOL_BCAST_PROBE_RESP &&
vif->bss_conf.unsol_bcast_probe_resp_interval) {
interval = vif->bss_conf.unsol_bcast_probe_resp_interval;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index 14a88ef79b6c..795a294fa904 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -2863,7 +2863,8 @@ int mt7996_mcu_beacon_inband_discov(struct mt7996_dev *dev,
if (changed & BSS_CHANGED_FILS_DISCOVERY &&
link_conf->fils_discovery.max_interval) {
interval = link_conf->fils_discovery.max_interval;
- skb = ieee80211_get_fils_discovery_tmpl(hw, vif);
+ skb = ieee80211_get_fils_discovery_tmpl(hw, vif,
+ link_conf->link_id);
} else if (changed & BSS_CHANGED_UNSOL_BCAST_PROBE_RESP &&
link_conf->unsol_bcast_probe_resp_interval) {
interval = link_conf->unsol_bcast_probe_resp_interval;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7f9d96939a4e..d36c14a86c8a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -7766,13 +7766,15 @@ u32 ieee80211_calc_tx_airtime(struct ieee80211_hw *hw,
* ieee80211_get_fils_discovery_tmpl - Get FILS discovery template.
* @hw: pointer obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @link_id: valid link_id during MLO or 0 for non-MLO.
*
* The driver is responsible for freeing the returned skb.
*
* Return: FILS discovery template. %NULL on error.
*/
struct sk_buff *ieee80211_get_fils_discovery_tmpl(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif);
+ struct ieee80211_vif *vif,
+ unsigned int link_id);
/**
* ieee80211_get_unsol_bcast_probe_resp_tmpl - Get unsolicited broadcast
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 007f5a368d41..f547cfb27666 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -5839,21 +5839,28 @@ struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
EXPORT_SYMBOL(ieee80211_proberesp_get);
struct sk_buff *ieee80211_get_fils_discovery_tmpl(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
+ struct ieee80211_vif *vif,
+ unsigned int link_id)
{
struct sk_buff *skb = NULL;
struct fils_discovery_data *tmpl = NULL;
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_link_data *link;
if (sdata->vif.type != NL80211_IFTYPE_AP)
return NULL;
- rcu_read_lock();
- tmpl = rcu_dereference(sdata->deflink.u.ap.fils_discovery);
- if (!tmpl) {
- rcu_read_unlock();
+ if (link_id >= IEEE80211_MLD_MAX_NUM_LINKS)
+ return NULL;
+
+ guard(rcu)();
+ link = rcu_dereference(sdata->link[link_id]);
+ if (!link)
+ return NULL;
+
+ tmpl = rcu_dereference(link->u.ap.fils_discovery);
+ if (!tmpl)
return NULL;
- }
skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom + tmpl->len);
if (skb) {
@@ -5861,7 +5868,6 @@ struct sk_buff *ieee80211_get_fils_discovery_tmpl(struct ieee80211_hw *hw,
skb_put_data(skb, tmpl->data, tmpl->len);
}
- rcu_read_unlock();
return skb;
}
EXPORT_SYMBOL(ieee80211_get_fils_discovery_tmpl);
--
2.34.1
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