wifi: mt76: mt7996: Add mt7996_mac_sta_change_links callback

Intrdouce mt7996_mac_sta_change_links routine to set change_sta_links
required by mac80211. This is a preliminary patch to introduce MLO
support for MT7996 driver.

Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-8-31df6972519b@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
index 1bca444d2d02333cabd31ba2c8565769a42ab581..307c68c6b0cd7c3acdbfd7be78a007a66d3183bf 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
@@ -952,6 +952,26 @@ error_unlink:
        return err;
 }
 
+static int
+mt7996_mac_sta_change_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+                           struct ieee80211_sta *sta, u16 old_links,
+                           u16 new_links)
+{
+       struct mt7996_dev *dev = mt7996_hw_dev(hw);
+       unsigned long add = new_links & ~old_links;
+       unsigned long rem = old_links & ~new_links;
+       int ret;
+
+       mutex_lock(&dev->mt76.mutex);
+
+       mt7996_mac_sta_remove_links(dev, sta, rem);
+       ret = mt7996_mac_sta_add_links(dev, vif, sta, add);
+
+       mutex_unlock(&dev->mt76.mutex);
+
+       return ret;
+}
+
 static int
 mt7996_mac_sta_add(struct mt76_phy *mphy, struct ieee80211_vif *vif,
                   struct ieee80211_sta *sta)
@@ -1921,4 +1941,5 @@ const struct ieee80211_ops mt7996_ops = {
        .net_setup_tc = mt76_wed_net_setup_tc,
 #endif
        .change_vif_links = mt7996_change_vif_links,
+       .change_sta_links = mt7996_mac_sta_change_links,
 };