diff mbox series

[rtw-next,v3,07/14] wifi: rtw89: Add extra TX headroom for USB

Message ID 4f8e955b-d728-4aca-9e65-cdb146f58ac1@gmail.com
State New
Headers show
Series [rtw-next,v3,01/14] wifi: rtw89: 8851b: Accept USB devices and load their MAC address | expand

Commit Message

Bitterblue Smith June 20, 2025, 6:59 p.m. UTC 
In the case of USB the TX descriptor is transmitted in the same buffer
as the 802.11 frame, so add the required headroom.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
---
v2:
 - Add Acked-by.

v3:
 - No change.
---
 drivers/net/wireless/realtek/rtw89/core.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index bc7af6117709..3e53b1f1a35f 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -5578,6 +5578,9 @@  static int rtw89_core_register_hw(struct rtw89_dev *rtwdev)
 	int ret;
 	int tx_headroom = IEEE80211_HT_CTL_LEN;
 
+	if (rtwdev->hci.type == RTW89_HCI_TYPE_USB)
+		tx_headroom += chip->txwd_body_size + chip->txwd_info_size;
+
 	hw->vif_data_size = struct_size_t(struct rtw89_vif, links_inst, n);
 	hw->sta_data_size = struct_size_t(struct rtw89_sta, links_inst, n);
 	hw->txq_data_size = sizeof(struct rtw89_txq);