wifi: rtlwifi: drop fill_fake_txdesc() from HAL interface

Since 'fill_fake_txdesc()' is actually implemented for rtl8192cu
only but never used, there is no need to maintain function pointer
in 'struct rtl_hal_ops' and 'rtl92cu_fill_fake_txdesc()' may be
dropped. Compile tested only.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231016135925.129223-2-dmantipov@yandex.ru

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c

@@ -102,7 +102,6 @@ static struct rtl_hal_ops rtl8192cu_hal_ops = {
 	.set_hw_reg = rtl92cu_set_hw_reg,
 	.update_rate_tbl = rtl92cu_update_hal_rate_tbl,
 	.fill_tx_desc = rtl92cu_tx_fill_desc,
-	.fill_fake_txdesc = rtl92cu_fill_fake_txdesc,
 	.fill_tx_cmddesc = rtl92cu_tx_fill_cmddesc,
 	.query_rx_desc = rtl92cu_rx_query_desc,
 	.set_channel_access = rtl92cu_update_channel_access_setting,

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c

@@ -600,32 +600,6 @@ void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
 	rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "==>\n");
 }
 
-void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 *pdesc8,
-			      u32 buffer_len, bool is_pspoll)
-{
-	__le32 *pdesc = (__le32 *)pdesc8;
-
-	/* Clear all status */
-	memset(pdesc, 0, RTL_TX_HEADER_SIZE);
-	set_tx_desc_first_seg(pdesc, 1); /* bFirstSeg; */
-	set_tx_desc_last_seg(pdesc, 1); /* bLastSeg; */
-	set_tx_desc_offset(pdesc, RTL_TX_HEADER_SIZE); /* Offset = 32 */
-	set_tx_desc_pkt_size(pdesc, buffer_len); /* Buffer size + command hdr */
-	set_tx_desc_queue_sel(pdesc, QSLT_MGNT); /* Fixed queue of Mgnt queue */
-	/* Set NAVUSEHDR to prevent Ps-poll AId filed to be changed to error
-	 * vlaue by Hw. */
-	if (is_pspoll) {
-		set_tx_desc_nav_use_hdr(pdesc, 1);
-	} else {
-		set_tx_desc_hwseq_en(pdesc, 1); /* Hw set sequence number */
-		set_tx_desc_pkt_id(pdesc, BIT(3)); /* set bit3 to 1. */
-	}
-	set_tx_desc_use_rate(pdesc, 1); /* use data rate which is set by Sw */
-	set_tx_desc_own(pdesc, 1);
-	set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
-	_rtl_tx_desc_checksum(pdesc);
-}
-
 void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc8,
 			     struct sk_buff *skb)
 {

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.h

@@ -394,8 +394,6 @@ void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct sk_buff *skb,
 			  u8 queue_index,
 			  struct rtl_tcb_desc *tcb_desc);
-void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 *pdesc,
-			       u32 buffer_len, bool ispspoll);
 void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 			     struct sk_buff *skb);
 

drivers/net/wireless/realtek/rtlwifi/wifi.h

@@ -2239,8 +2239,6 @@ struct rtl_hal_ops {
 			     struct ieee80211_sta *sta,
 			     struct sk_buff *skb, u8 hw_queue,
 			     struct rtl_tcb_desc *ptcb_desc);
-	void (*fill_fake_txdesc)(struct ieee80211_hw *hw, u8 *pdesc,
-				 u32 buffer_len, bool bsspspoll);
 	void (*fill_tx_cmddesc)(struct ieee80211_hw *hw, u8 *pdesc,
 				struct sk_buff *skb);
 	void (*fill_tx_special_desc)(struct ieee80211_hw *hw,