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mt76x02: use mask for vifs

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Use vif_mask to count interfaces to allow to set mac address in HW
if there is only one interface and report error if we create
interface with wrong BSSID resulting in already used index.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Stanislaw Gruszka
2019-01-31 09:37:27 +01:00
committed by Felix Fietkau
parent a4ec45c294
commit edda5c56d4
2 changed files with 13 additions and 0 deletions
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mt76x02.h
+2
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@@ -73,6 +73,8 @@ struct mt76x02_dev {
struct mutex phy_mutex;
u16 vif_mask;
u8 txdone_seq;
DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x02_tx_status);
mt76x02_util.c
+11
View File
@@ -309,6 +309,15 @@ mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
if (vif->type == NL80211_IFTYPE_STATION)
idx += 8;
if (dev->vif_mask & BIT(idx))
return -EBUSY;
/* Allow to change address in HW if we create first interface. */
if (!dev->vif_mask && !ether_addr_equal(dev->mt76.macaddr, vif->addr))
mt76x02_mac_setaddr(dev, vif->addr);
dev->vif_mask |= BIT(idx);
mt76x02_vif_init(dev, vif, idx);
return 0;
}
@@ -318,8 +327,10 @@ void mt76x02_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt76x02_dev *dev = hw->priv;
struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
mt76_txq_remove(&dev->mt76, vif->txq);
dev->vif_mask &= ~BIT(mvif->idx);
}
EXPORT_SYMBOL_GPL(mt76x02_remove_interface);