mt76x02: add static qualifier to mt76x02_remove_dma_hdr

Add static qualifier to mt76x02_remove_dma_hdr routine and
do not export the symbol since it is only used in mt76x02_util.c
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x02_util.c

@@ -407,7 +407,7 @@ void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len)
 }
 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad);
 
-void mt76x02_remove_dma_hdr(struct sk_buff *skb)
+static void mt76x02_remove_dma_hdr(struct sk_buff *skb)
 {
 	int hdr_len;
 
@@ -416,7 +416,6 @@ void mt76x02_remove_dma_hdr(struct sk_buff *skb)
 	if (hdr_len % 4)
 		mt76x02_remove_hdr_pad(skb, 2);
 }
-EXPORT_SYMBOL_GPL(mt76x02_remove_dma_hdr);
 
 void mt76x02_tx_complete(struct mt76_dev *dev, struct sk_buff *skb)
 {

drivers/net/wireless/mediatek/mt76/mt76x02_util.h

@@ -48,7 +48,6 @@ void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw,
 int mt76x02_insert_hdr_pad(struct sk_buff *skb);
 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len);
 void mt76x02_tx_complete(struct mt76_dev *dev, struct sk_buff *skb);
-void mt76x02_remove_dma_hdr(struct sk_buff *skb);
 void mt76x02_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue *q,
 			    struct mt76_queue_entry *e, bool flush);
 bool mt76x02_tx_status_data(struct mt76_dev *dev, u8 *update);