[PATCH] wifi: rtw89: add WQ_PERCPU to alloc_workqueue users

[PATCH] wifi: rtw89: add WQ_PERCPU to alloc_workqueue users

[Marco Crivellari]

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

   commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
   commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.

In order to keep alloc_workqueue() behavior identical, explicitly request
WQ_PERCPU.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
---
 drivers/net/wireless/realtek/rtw89/usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/usb.c b/drivers/net/wireless/realtek/rtw89/usb.c
index d7d968207a39..e77561a4d971 100644
--- a/drivers/net/wireless/realtek/rtw89/usb.c
+++ b/drivers/net/wireless/realtek/rtw89/usb.c
@@ -620,7 +620,7 @@ static int rtw89_usb_init_rx(struct rtw89_dev *rtwdev)
 	struct sk_buff *rx_skb;
 	int i;
 
-	rtwusb->rxwq = alloc_workqueue("rtw89_usb: rx wq", WQ_BH, 0);
+	rtwusb->rxwq = alloc_workqueue("rtw89_usb: rx wq", WQ_BH | WQ_PERCPU, 0);
 	if (!rtwusb->rxwq) {
 		rtw89_err(rtwdev, "failed to create RX work queue\n");
 		return -ENOMEM;
-- 
2.52.0

Re: [PATCH] wifi: rtw89: add WQ_PERCPU to alloc_workqueue users

[Ping-Ke Shih]

Marco Crivellari <marco.crivellari@suse.com> wrote:

> This continues the effort to refactor workqueue APIs, which began with
> the introduction of new workqueues and a new alloc_workqueue flag in:
> 
>    commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
>    commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")
> 
> The refactoring is going to alter the default behavior of
> alloc_workqueue() to be unbound by default.
> 
> With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
> any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
> must now use WQ_PERCPU. For more details see the Link tag below.
> 
> In order to keep alloc_workqueue() behavior identical, explicitly request
> WQ_PERCPU.
> 
> Suggested-by: Tejun Heo <tj@kernel.org>
> Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
> Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/

1 patch(es) applied to rtw-next branch of rtw.git, thanks.

36f2deb2f55f wifi: rtw89: add WQ_PERCPU to alloc_workqueue users

---
https://github.com/pkshih/rtw.git

Re: [PATCH] wifi: rtw89: add WQ_PERCPU to alloc_workqueue users

[Marco Crivellari]

On Tue, Dec 23, 2025 at 4:48 AM Ping-Ke Shih <pkshih@realtek.com> wrote:
> 1 patch(es) applied to rtw-next branch of rtw.git, thanks.
>
> 36f2deb2f55f wifi: rtw89: add WQ_PERCPU to alloc_workqueue users

Many thanks!

-- 

Marco Crivellari

L3 Support Engineer