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Mon, 22 Sep 2025 02:32:54 -0700 (PDT) Received: from localhost.localdomain ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3ee0fbc7188sm19735964f8f.37.2025.09.22.02.32.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Sep 2025 02:32:54 -0700 (PDT) From: Marco Crivellari To: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Matthias Brugger , AngeloGioacchino Del Regno Subject: [PATCH mt76 1/1] wifi: mt76: replace use of system_wq with system_percpu_wq Date: Mon, 22 Sep 2025 11:32:43 +0200 Message-ID: <20250922093243.140946-2-marco.crivellari@suse.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250922093243.140946-1-marco.crivellari@suse.com> References: <20250922093243.140946-1-marco.crivellari@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Currently if a user enqueue a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistentcy cannot be addressed without refactoring the API. system_wq is the per-cpu workqueue, but nothing in its name makes that clea= r. Because of that, a new system_percpu_wq has been added and all the system_wq users updated accordingly. system_wq will be removed in a future release cycle. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari --- 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 =3D dev->mphy.chainmask; dev->mphy.hw->wiphy->available_antennas_tx =3D dev->mphy.chainmask; =20 - queue_work(system_wq, &dev->init_work); + queue_work(system_percpu_wq, &dev->init_work); =20 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 =3D dev->mphy.chainmask; dev->mphy.hw->wiphy->available_antennas_tx =3D dev->mphy.chainmask; =20 - queue_work(system_wq, &dev->init_work); + queue_work(system_percpu_wq, &dev->init_work); =20 return 0; } --=20 2.51.0