Allocate skg with enough headroom by mac80211 , this eliminate need
to add extra skb headroom by the mt76x0 driver.
Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt76x0/init.c | 1 +
drivers/net/wireless/mediatek/mt76/mt76x0/tx.c | 17 +----------------
2 files changed, 2 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/init.c b/drivers/net/wireless/mediatek/mt76/mt76x0/init.c
index 84fc306d2cbf..45c9f1f7a89a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/init.c
@@ -685,6 +685,7 @@ int mt76x0_register_device(struct mt76x0_dev *dev)
hw->max_rates = 1;
hw->max_report_rates = 7;
hw->max_rate_tries = 1;
+ hw->extra_tx_headroom = sizeof(struct mt76x02_txwi) + 4 + 2;
hw->sta_data_size = sizeof(struct mt76x02_sta);
hw->vif_data_size = sizeof(struct mt76x02_vif);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/tx.c b/drivers/net/wireless/mediatek/mt76/mt76x0/tx.c
index fa902ac227ec..35db38523e3b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/tx.c
@@ -55,18 +55,6 @@ void mt76x0_tx_status(struct mt76x0_dev *dev, struct sk_buff *skb)
spin_unlock(&dev->mac_lock);
}
-static int mt76x0_skb_rooms(struct mt76x0_dev *dev, struct sk_buff *skb)
-{
- int hdr_len = ieee80211_get_hdrlen_from_skb(skb);
- u32 need_head;
-
- need_head = sizeof(struct mt76x02_txwi) + 4;
- if (hdr_len % 4)
- need_head += 2;
-
- return skb_cow(skb, need_head);
-}
-
static struct mt76x02_txwi *
mt76x0_push_txwi(struct mt76x0_dev *dev, struct sk_buff *skb,
struct ieee80211_sta *sta, struct mt76_wcid *wcid,
@@ -158,10 +146,7 @@ void mt76x0_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
BUILD_BUG_ON(ARRAY_SIZE(info->status.status_driver_data) < 1);
info->status.status_driver_data[0] = (void *)(unsigned long)pkt_len;
- if (mt76x0_skb_rooms(dev, skb) || mt76x0_insert_hdr_pad(skb)) {
- ieee80211_free_txskb(dev->mt76.hw, skb);
- return;
- }
+ mt76x0_insert_hdr_pad(skb);
if (sta) {
msta = (struct mt76x02_sta *) sta->drv_priv;
--
2.7.5
