From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Ping-Ke Shih <pkshih@realtek.com>,
Luka Gejak <luka.gejak@linux.dev>,
Josef Schlehofer <pepe.schlehofer@gmail.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.1.y 2/2] wifi: rtw88: TX report with long timeout for non-PCIE devices
Date: Tue, 10 Nov 2026 08:49:26 -0500 [thread overview]
Message-ID: <20261110134856.1763369-2-sashal@kernel.org> (raw)
In-Reply-To: <20261110134856.1763369-1-sashal@kernel.org>
From: Ping-Ke Shih <pkshih@realtek.com>
[ Upstream commit 7cde94dab0e74434ccc0a387d7ad373fb3becda0 ]
Many USB and SDIO devices can't report TX status within 500 ms, and
extending to 2500 ms as tested USB/SDIO devices can fix the problem [1].
To avoid adding chip ID one by one, and this change looks harmless.
Keep PCIE using short timeout, and others use long timeout.
[1] https://lore.kernel.org/linux-wireless/20260921165343.8131-1-pepe.schlehofer@gmail.com/
Cc: stable@vger.kernel.org
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Reviewed-by: Luka Gejak <luka.gejak@linux.dev>
Tested-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Link: https://patch.msgid.link/20260924004637.9958-1-pkshih@realtek.com
[ sashal: Adjusted context for the missing RTL8723BS timeout exception in rtw_tx_report_enqueue(). ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtw88/tx.c | 9 +++++----
drivers/net/wireless/realtek/rtw88/tx.h | 3 ++-
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/tx.c b/drivers/net/wireless/realtek/rtw88/tx.c
index 28edbec3d9fd3..48576216d8eca 100644
--- a/drivers/net/wireless/realtek/rtw88/tx.c
+++ b/drivers/net/wireless/realtek/rtw88/tx.c
@@ -176,7 +176,7 @@ void rtw_tx_report_purge_timer(struct timer_list *t)
void rtw_tx_report_enqueue(struct rtw_dev *rtwdev, struct sk_buff *skb, u8 sn)
{
struct rtw_tx_report *tx_report = &rtwdev->tx_report;
- unsigned long timeout = RTW_TX_PROBE_TIMEOUT;
+ unsigned long timeout;
unsigned long flags;
u8 *drv_data;
@@ -188,9 +188,10 @@ void rtw_tx_report_enqueue(struct rtw_dev *rtwdev, struct sk_buff *skb, u8 sn)
__skb_queue_tail(&tx_report->queue, skb);
spin_unlock_irqrestore(&tx_report->q_lock, flags);
- if (rtwdev->chip->id == RTW_CHIP_TYPE_8723D &&
- rtwdev->hci.type == RTW_HCI_TYPE_USB)
- timeout = msecs_to_jiffies(2500);
+ if (rtwdev->hci.type == RTW_HCI_TYPE_PCIE)
+ timeout = RTW_TX_PROBE_TIMEOUT_SHORT;
+ else
+ timeout = RTW_TX_PROBE_TIMEOUT_LONG;
mod_timer(&tx_report->purge_timer, jiffies + timeout);
}
diff --git a/drivers/net/wireless/realtek/rtw88/tx.h b/drivers/net/wireless/realtek/rtw88/tx.h
index 8419603adce4a..8a6fbe34d2279 100644
--- a/drivers/net/wireless/realtek/rtw88/tx.h
+++ b/drivers/net/wireless/realtek/rtw88/tx.h
@@ -7,7 +7,8 @@
#define RTK_TX_MAX_AGG_NUM_MASK 0x1f
-#define RTW_TX_PROBE_TIMEOUT msecs_to_jiffies(500)
+#define RTW_TX_PROBE_TIMEOUT_SHORT msecs_to_jiffies(500)
+#define RTW_TX_PROBE_TIMEOUT_LONG msecs_to_jiffies(2500)
#define SET_TX_DESC_TXPKTSIZE(txdesc, value) \
le32p_replace_bits((__le32 *)(txdesc) + 0x00, value, GENMASK(15, 0))
--
2.53.0
prev parent reply other threads:[~2026-11-10 13:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-07 10:43 FAILED: patch "[PATCH] wifi: rtw88: TX report with long timeout for non-PCIE devices" failed to apply to 6.1-stable tree Sasha Levin
2026-11-10 13:49 ` [PATCH 6.1.y 1/2] wifi: rtw88: increase TX report timeout to fix race condition Sasha Levin
2026-11-10 13:49 ` Sasha Levin [this message]
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