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Wed, 05 Nov 2025 07:37:28 -0800 (PST) Received: from localhost.localdomain ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-429dc1fdef7sm11634497f8f.43.2025.11.05.07.37.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Nov 2025 07:37:27 -0800 (PST) From: Marco Crivellari To: linux-kernel@vger.kernel.org Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Marek Behun Subject: [PATCH] platform: cznic: turris-omnia-mcu: replace use of system_wq with system_percpu_wq Date: Wed, 5 Nov 2025 16:37:18 +0100 Message-ID: <20251105153718.274765-1-marco.crivellari@suse.com> X-Mailer: git-send-email 2.51.1 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 enqueues 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 consistency cannot be addressed without refactoring the API. This patch continues the effort to refactor worqueue APIs, which has begun with the change introducing new workqueues and a new alloc_workqueue flag: commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") Replace system_wq with system_percpu_wq, keeping the same behavior. The old wq (system_wq) will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Acked-by: Marek Beh=C3=BAn --- drivers/platform/cznic/turris-omnia-mcu-gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/cznic/turris-omnia-mcu-gpio.c b/drivers/platf= orm/cznic/turris-omnia-mcu-gpio.c index 7f0ada4fa606..4e430d6c3fc4 100644 --- a/drivers/platform/cznic/turris-omnia-mcu-gpio.c +++ b/drivers/platform/cznic/turris-omnia-mcu-gpio.c @@ -893,7 +893,7 @@ static bool omnia_irq_read_pending_old(struct omnia_mcu= *mcu, =20 if (status & OMNIA_STS_BUTTON_PRESSED) { mcu->button_pressed_emul =3D true; - mod_delayed_work(system_wq, &mcu->button_release_emul_work, + mod_delayed_work(system_percpu_wq, &mcu->button_release_emul_work, msecs_to_jiffies(FRONT_BUTTON_RELEASE_DELAY_MS)); } else if (mcu->button_pressed_emul) { status |=3D OMNIA_STS_BUTTON_PRESSED; --=20 2.51.1