[PATCH 02/15] wifi: mt76: mt7925: fix NAN start failure

[Sean Wang <sean.wang@kernel.org>]

From: Stella Liu <yu-ching.liu@mediatek.com>

mt7925_start_nan() called mt7925_nan_set_nmi_addr(), which makes NAN
start fail. The NMI address is not managed here, so drop the call.

Also track dev->nan_vif only in add/remove_interface and fold the
single BSS rollback into an inline error check.

Fixes: 0f3605e4f8de ("wifi: mt76: mt7925: wire up NAN operations")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stella Liu <yu-ching.liu@mediatek.com>
---
 .../net/wireless/mediatek/mt76/mt7925/main.c  | 17 +---------
 .../net/wireless/mediatek/mt76/mt7925/nan.c   | 32 -------------------
 .../net/wireless/mediatek/mt76/mt7925/nan.h   |  2 --
 3 files changed, 1 insertion(+), 50 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/main.c b/drivers/net/wireless/mediatek/mt76/mt7925/main.c
index 84b55f008b3d..77420bb6f977 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/main.c
@@ -2592,21 +2592,9 @@ static int mt7925_start_nan(struct ieee80211_hw *hw,
 	if (err < 0)
 		goto out;
 
-	dev->nan_vif = vif;
-
-	err = mt7925_nan_set_nmi_addr(dev, vif->addr);
-	if (err)
-		goto rollback_bss;
-
 	err = mt7925_nan_enable(vif, dev, conf);
 	if (err)
-		goto rollback_bss;
-
-	goto out;
-
-rollback_bss:
-	dev->nan_vif = NULL;
-	mt7925_mcu_add_bss_info(&dev->phy, NULL, link_conf, NULL, false);
+		mt7925_mcu_add_bss_info(&dev->phy, NULL, link_conf, NULL, false);
 
 out:
 	mt792x_mutex_release(dev);
@@ -2630,9 +2618,6 @@ static int mt7925_stop_nan(struct ieee80211_hw *hw,
 	if (!err)
 		err = ret;
 
-	if (dev->nan_vif == vif)
-		dev->nan_vif = NULL;
-
 	mt792x_mutex_release(dev);
 
 	return err;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/nan.c b/drivers/net/wireless/mediatek/mt76/mt7925/nan.c
index 70cb2c44869c..ba7374fb7c03 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/nan.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/nan.c
@@ -144,38 +144,6 @@ mt7925_nan_update_conf(struct mt792x_vif *mvif,
 	memcpy(mvif->nan.conf.cluster_id, conf->cluster_id, ETH_ALEN);
 }
 
-int mt7925_nan_set_nmi_addr(struct mt792x_dev *dev, const u8 *addr)
-{
-	struct mt76_dev *mdev;
-	struct {
-		u8 rsv[4];
-		struct mt7925_nan_nmi_addr_tlv nmi_addr_tlv;
-	} nmi_cmd = {
-		.rsv = { 0 },
-		.nmi_addr_tlv = {
-			.tag = cpu_to_le16(NAN_UNI_CMD_CHANGE_NMI_ADDRESS),
-			.len = cpu_to_le16(sizeof(struct mt7925_nan_nmi_addr_tlv)),
-		},
-	};
-	int ret;
-
-	if (!dev || !addr)
-		return -EINVAL;
-
-	if (is_zero_ether_addr(addr) || is_multicast_ether_addr(addr)) {
-		dev_err(dev->mt76.dev, "NAN: invalid NMI address %pM\n", addr);
-		return -EINVAL;
-	}
-
-	mdev = &dev->mt76;
-	memcpy(nmi_cmd.nmi_addr_tlv.nmi_addr, addr, ETH_ALEN);
-
-	ret = mt76_mcu_send_msg(mdev, MCU_UNI_CMD(NAN), &nmi_cmd,
-				sizeof(nmi_cmd), true);
-
-	return ret;
-}
-
 int mt7925_nan_enable(struct ieee80211_vif *vif,
 		      struct mt792x_dev *dev,
 		      struct cfg80211_nan_conf *conf)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/nan.h b/drivers/net/wireless/mediatek/mt76/mt7925/nan.h
index 1dcc888d98f9..91f4e999711e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/nan.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/nan.h
@@ -405,8 +405,6 @@ int mt7925_nan_change_configure(struct ieee80211_vif *vif,
 
 void mt7925_nan_mcu_event(struct mt792x_dev *dev, struct sk_buff *skb);
 
-int mt7925_nan_set_nmi_addr(struct mt792x_dev *dev, const u8 *addr);
-
 void mt7925_nan_local_sched_changed(struct mt792x_dev *dev,
 				    struct ieee80211_vif *vif);
 
-- 
2.43.0