diff mbox series

[v2,15/18] wifi: rtl8xxxu: Remove usage of ieee80211_get_tx_rate()

Message ID 20230419100145.159191-16-martin.kaistra@linutronix.de
State Superseded
Headers show
Series wifi: rtl8xxxu: Add AP mode support for 8188f | expand

Commit Message

Martin Kaistra April 19, 2023, 10:01 a.m. UTC 
As this driver uses HAS_RATE_CONTROL, tx_rates will not be provided by
mac80211.

For some frames c->control.rates[0].idx is negative, which means
ieee80211_get_tx_rate() will print a warning and return NULL.

Only management frames have USE_DRIVER_RATE set, so for all others the
rate info of txdesc is ignored anyway.

Remove call to ieee80211_get_tx_rate() and send management frames with
1M (rate info = 0).

Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
---
 .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 27 +++----------------
 1 file changed, 3 insertions(+), 24 deletions(-)

Comments

Ping-Ke Shih April 24, 2023, 3:07 a.m. UTC | #1 
> -----Original Message-----
> From: Martin Kaistra <martin.kaistra@linutronix.de>
> Sent: Wednesday, April 19, 2023 6:02 PM
> To: linux-wireless@vger.kernel.org
> Cc: Jes Sorensen <Jes.Sorensen@gmail.com>; Kalle Valo <kvalo@kernel.org>; Ping-Ke Shih
> <pkshih@realtek.com>; Bitterblue Smith <rtl8821cerfe2@gmail.com>; Sebastian Andrzej Siewior
> <bigeasy@linutronix.de>
> Subject: [PATCH v2 15/18] wifi: rtl8xxxu: Remove usage of ieee80211_get_tx_rate()
> 
> As this driver uses HAS_RATE_CONTROL, tx_rates will not be provided by
> mac80211.
> 
> For some frames c->control.rates[0].idx is negative, which means
> ieee80211_get_tx_rate() will print a warning and return NULL.
> 
> Only management frames have USE_DRIVER_RATE set, so for all others the
> rate info of txdesc is ignored anyway.
> 
> Remove call to ieee80211_get_tx_rate() and send management frames with
> 1M (rate info = 0).
> 
> Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>

Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>

[...]
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index f5b6ff3351e5a..b60f90ea5187b 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -5180,21 +5180,14 @@  rtl8xxxu_fill_txdesc_v1(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
 			bool short_preamble, bool ampdu_enable, u32 rts_rate,
 			u8 macid)
 {
-	struct ieee80211_rate *tx_rate = ieee80211_get_tx_rate(hw, tx_info);
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
 	u8 *qc = ieee80211_get_qos_ctl(hdr);
 	u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
-	u32 rate;
+	u32 rate = 0;
 	u16 rate_flags = tx_info->control.rates[0].flags;
 	u16 seq_number;
 
-	if (rate_flags & IEEE80211_TX_RC_MCS &&
-	    !ieee80211_is_mgmt(hdr->frame_control))
-		rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0;
-	else
-		rate = tx_rate->hw_value;
-
 	if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX)
 		dev_info(dev, "%s: TX rate: %d, pkt size %u\n",
 			 __func__, rate, le16_to_cpu(tx_desc->pkt_size));
@@ -5253,24 +5246,17 @@  rtl8xxxu_fill_txdesc_v2(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
 			bool short_preamble, bool ampdu_enable, u32 rts_rate,
 			u8 macid)
 {
-	struct ieee80211_rate *tx_rate = ieee80211_get_tx_rate(hw, tx_info);
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
 	struct rtl8xxxu_txdesc40 *tx_desc40;
 	u8 *qc = ieee80211_get_qos_ctl(hdr);
 	u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
-	u32 rate;
+	u32 rate = 0;
 	u16 rate_flags = tx_info->control.rates[0].flags;
 	u16 seq_number;
 
 	tx_desc40 = (struct rtl8xxxu_txdesc40 *)tx_desc32;
 
-	if (rate_flags & IEEE80211_TX_RC_MCS &&
-	    !ieee80211_is_mgmt(hdr->frame_control))
-		rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0;
-	else
-		rate = tx_rate->hw_value;
-
 	if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX)
 		dev_info(dev, "%s: TX rate: %d, pkt size %u\n",
 			 __func__, rate, le16_to_cpu(tx_desc40->pkt_size));
@@ -5334,22 +5320,15 @@  rtl8xxxu_fill_txdesc_v3(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
 			bool short_preamble, bool ampdu_enable, u32 rts_rate,
 			u8 macid)
 {
-	struct ieee80211_rate *tx_rate = ieee80211_get_tx_rate(hw, tx_info);
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
 	struct rtl8xxxu_ra_info *ra = &priv->ra_info;
 	u8 *qc = ieee80211_get_qos_ctl(hdr);
 	u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
-	u32 rate;
+	u32 rate = 0;
 	u16 rate_flags = tx_info->control.rates[0].flags;
 	u16 seq_number;
 
-	if (rate_flags & IEEE80211_TX_RC_MCS &&
-	    !ieee80211_is_mgmt(hdr->frame_control))
-		rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0;
-	else
-		rate = tx_rate->hw_value;
-
 	seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
 
 	if (ieee80211_is_data(hdr->frame_control)) {