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Wed, 05 Nov 2025 07:20:32 -0800 (PST) Received: from localhost.localdomain ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-429dc200878sm11018117f8f.45.2025.11.05.07.20.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Nov 2025 07:20:32 -0800 (PST) From: Marco Crivellari To: linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Vinod Koul , Kishon Vijay Abraham I , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Subject: [PATCH] phy: sun4i-usb: replace use of system_wq with system_percpu_wq Date: Wed, 5 Nov 2025 16:20:23 +0100 Message-ID: <20251105152023.259813-1-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 Reviewed-by: Jernej Skrabec --- drivers/phy/allwinner/phy-sun4i-usb.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/= phy-sun4i-usb.c index 59d38d88efb0..e2fbf8ccf99e 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -359,7 +359,7 @@ static int sun4i_usb_phy_init(struct phy *_phy) /* Force ISCR and cable state updates */ data->id_det =3D -1; data->vbus_det =3D -1; - queue_delayed_work(system_wq, &data->detect, 0); + queue_delayed_work(system_percpu_wq, &data->detect, 0); } =20 return 0; @@ -482,7 +482,7 @@ static int sun4i_usb_phy_power_on(struct phy *_phy) =20 /* We must report Vbus high within OTG_TIME_A_WAIT_VRISE msec. */ if (phy->index =3D=3D 0 && sun4i_usb_phy0_poll(data)) - mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME); + mod_delayed_work(system_percpu_wq, &data->detect, DEBOUNCE_TIME); =20 return 0; } @@ -503,7 +503,7 @@ static int sun4i_usb_phy_power_off(struct phy *_phy) * Vbus gpio to not trigger an edge irq on Vbus off, so force a rescan. */ if (phy->index =3D=3D 0 && !sun4i_usb_phy0_poll(data)) - mod_delayed_work(system_wq, &data->detect, POLL_TIME); + mod_delayed_work(system_percpu_wq, &data->detect, POLL_TIME); =20 return 0; } @@ -542,7 +542,7 @@ static int sun4i_usb_phy_set_mode(struct phy *_phy, =20 data->id_det =3D -1; /* Force reprocessing of id */ data->force_session_end =3D true; - queue_delayed_work(system_wq, &data->detect, 0); + queue_delayed_work(system_percpu_wq, &data->detect, 0); =20 return 0; } @@ -654,7 +654,7 @@ static void sun4i_usb_phy0_id_vbus_det_scan(struct work= _struct *work) extcon_set_state_sync(data->extcon, EXTCON_USB, vbus_det); =20 if (sun4i_usb_phy0_poll(data)) - queue_delayed_work(system_wq, &data->detect, POLL_TIME); + queue_delayed_work(system_percpu_wq, &data->detect, POLL_TIME); } =20 static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int irq, void *dev_id) @@ -662,7 +662,7 @@ static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int i= rq, void *dev_id) struct sun4i_usb_phy_data *data =3D dev_id; =20 /* vbus or id changed, let the pins settle and then scan them */ - mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME); + mod_delayed_work(system_percpu_wq, &data->detect, DEBOUNCE_TIME); =20 return IRQ_HANDLED; } @@ -676,7 +676,7 @@ static int sun4i_usb_phy0_vbus_notify(struct notifier_b= lock *nb, =20 /* Properties on the vbus_power_supply changed, scan vbus_det */ if (val =3D=3D PSY_EVENT_PROP_CHANGED && psy =3D=3D data->vbus_power_supp= ly) - mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME); + mod_delayed_work(system_percpu_wq, &data->detect, DEBOUNCE_TIME); =20 return NOTIFY_OK; } --=20 2.51.1