ath10k: remove freq from skb_cb

It was wasteful to keep it in the struct.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/core.h

@@ -88,7 +88,6 @@ struct ath10k_skb_cb {
 
 	struct {
 		u8 tid;
-		u16 freq;
 		bool nohwcrypt;
 		struct ath10k_htt_txbuf *txbuf;
 		u32 txbuf_paddr;

drivers/net/wireless/ath/ath10k/htt_tx.c

@@ -538,6 +538,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
 	struct ath10k *ar = htt->ar;
 	struct device *dev = ar->dev;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(msdu);
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
 	struct ath10k_hif_sg_item sg_items[2];
 	struct htt_data_tx_desc_frag *frags;
@@ -547,6 +548,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
 	int res;
 	u8 flags0 = 0;
 	u16 msdu_id, flags1 = 0;
+	u16 freq = 0;
 	u32 frags_paddr = 0;
 	struct htt_msdu_ext_desc *ext_desc = NULL;
 	bool limit_mgmt_desc = false;
@@ -598,6 +600,9 @@ int ath10k_htt_tx(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
 		goto err_free_msdu_id;
 	}
 
+	if (unlikely(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN))
+		freq = ar->scan.roc_freq;
+
 	switch (txmode) {
 	case ATH10K_HW_TXRX_RAW:
 	case ATH10K_HW_TXRX_NATIVE_WIFI:
@@ -690,7 +695,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
 		skb_cb->htt.txbuf->cmd_tx.offchan_tx.peerid =
 				__cpu_to_le16(HTT_INVALID_PEERID);
 		skb_cb->htt.txbuf->cmd_tx.offchan_tx.freq =
-				__cpu_to_le16(skb_cb->htt.freq);
+				__cpu_to_le16(freq);
 	} else {
 		skb_cb->htt.txbuf->cmd_tx.peerid =
 				__cpu_to_le32(HTT_INVALID_PEERID);
@@ -700,7 +705,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
 	ath10k_dbg(ar, ATH10K_DBG_HTT,
 		   "htt tx flags0 %hhu flags1 %hu len %d id %hu frags_paddr %08x, msdu_paddr %08x vdev %hhu tid %hhu freq %hu\n",
 		   flags0, flags1, msdu->len, msdu_id, frags_paddr,
-		   (u32)skb_cb->paddr, vdev_id, tid, skb_cb->htt.freq);
+		   (u32)skb_cb->paddr, vdev_id, tid, freq);
 	ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt tx msdu: ",
 			msdu->data, msdu->len);
 	trace_ath10k_tx_hdr(ar, msdu->data, msdu->len);

drivers/net/wireless/ath/ath10k/mac.c

@@ -3528,6 +3528,7 @@ void __ath10k_scan_finish(struct ath10k *ar)
 	case ATH10K_SCAN_STARTING:
 		ar->scan.state = ATH10K_SCAN_IDLE;
 		ar->scan_channel = NULL;
+		ar->scan.roc_freq = 0;
 		ath10k_offchan_tx_purge(ar);
 		cancel_delayed_work(&ar->scan.timeout);
 		complete_all(&ar->scan.completed);
@@ -3683,7 +3684,6 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 
 	txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
 
-	ATH10K_SKB_CB(skb)->htt.freq = 0;
 	ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
 	ATH10K_SKB_CB(skb)->htt.nohwcrypt = !ath10k_tx_h_use_hwcrypto(vif, skb);
 	ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);
@@ -3708,13 +3708,10 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 
 	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
 		spin_lock_bh(&ar->data_lock);
-		ATH10K_SKB_CB(skb)->htt.freq = ar->scan.roc_freq;
 		ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
 		spin_unlock_bh(&ar->data_lock);
 
 		if (!ath10k_mac_tx_frm_has_freq(ar)) {
-			ATH10K_SKB_CB(skb)->htt.freq = 0;
-
 			ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %p\n",
 				   skb);