carl9170: remove get_tid_h

'get_tid_h()' is the same as 'ieee80211_get_tid()'.
So this function can be removed to save a few lines of code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/68efad7a597159e22771d37fc8b4a8a613866d60.1617399010.git.christophe.jaillet@wanadoo.fr

drivers/net/wireless/ath/carl9170/carl9170.h

@@ -631,14 +631,9 @@ static inline u16 carl9170_get_seq(struct sk_buff *skb)
 	return get_seq_h(carl9170_get_hdr(skb));
 }
 
-static inline u16 get_tid_h(struct ieee80211_hdr *hdr)
-{
-	return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
-}
-
 static inline u16 carl9170_get_tid(struct sk_buff *skb)
 {
-	return get_tid_h(carl9170_get_hdr(skb));
+	return ieee80211_get_tid(carl9170_get_hdr(skb));
 }
 
 static inline struct ieee80211_vif *

drivers/net/wireless/ath/carl9170/tx.c

@@ -394,7 +394,7 @@ static void carl9170_tx_status_process_ampdu(struct ar9170 *ar,
 	if (unlikely(!sta))
 		goto out_rcu;
 
-	tid = get_tid_h(hdr);
+	tid = ieee80211_get_tid(hdr);
 
 	sta_info = (void *) sta->drv_priv;
 	tid_info = rcu_dereference(sta_info->agg[tid]);