linux-kernel - Re: [PATCH v2] wifi: mt76: replace use of system_wq with system_percpu

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Message-ID: <CAAofZF51pkOzrg_nO0Mhx6g9b3JPtO3n+0YE=WtSgj_F6wnY4w@mail.gmail.com>
Date: Wed, 24 Dec 2025 16:25:08 +0100
From: Marco Crivellari <marco.crivellari@...e.com>
To: linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Cc: Tejun Heo <tj@...nel.org>, Lai Jiangshan <jiangshanlai@...il.com>, 
	Frederic Weisbecker <frederic@...nel.org>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, 
	Michal Hocko <mhocko@...e.com>, Felix Fietkau <nbd@....name>, Lorenzo Bianconi <lorenzo@...nel.org>, 
	Ryder Lee <ryder.lee@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v2] wifi: mt76: replace use of system_wq with system_percpu_wq

On Fri, Nov 14, 2025 at 11:43 AM Marco Crivellari
<marco.crivellari@...e.com> wrote:
>[...]
>  drivers/net/wireless/mediatek/mt76/mt7921/init.c | 2 +-
>  drivers/net/wireless/mediatek/mt76/mt7925/init.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> index b9098a7331b1..95764b82da39 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> @@ -343,7 +343,7 @@ int mt7921_register_device(struct mt792x_dev *dev)
>         dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
>         dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
>
> -       queue_work(system_wq, &dev->init_work);
> +       queue_work(system_percpu_wq, &dev->init_work);
>
>         return 0;
>  }
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net/wireless/mediatek/mt76/mt7925/init.c
> index d7d5afe365ed..e33ab4849e8a 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7925/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7925/init.c
> @@ -420,7 +420,7 @@ int mt7925_register_device(struct mt792x_dev *dev)
>         dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
>         dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
>
> -       queue_work(system_wq, &dev->init_work);
> +       queue_work(system_percpu_wq, &dev->init_work);
>
>         return 0;
>  }


Gentle ping.

Thanks!

-- 

Marco Crivellari

L3 Support Engineer