From b3ee88e27798f0e8dd3a81867804d693da74d57d Mon Sep 17 00:00:00 2001 From: Marco Crivellari Date: Thu, 6 Nov 2025 15:19:54 +0100 Subject: [PATCH] Input: synaptics_i2c - replace use of system_wq with system_dfl_wq 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") This specific workload do not benefit from a per-cpu workqueue, so use the default unbound workqueue (system_dfl_wq) instead. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Link: https://patch.msgid.link/20251106141955.218911-4-marco.crivellari@suse.com Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics_i2c.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c index a0d707e47d93..c8ddfff2605f 100644 --- a/drivers/input/mouse/synaptics_i2c.c +++ b/drivers/input/mouse/synaptics_i2c.c @@ -372,7 +372,7 @@ static irqreturn_t synaptics_i2c_irq(int irq, void *dev_id) { struct synaptics_i2c *touch = dev_id; - mod_delayed_work(system_wq, &touch->dwork, 0); + mod_delayed_work(system_dfl_wq, &touch->dwork, 0); return IRQ_HANDLED; } @@ -448,7 +448,7 @@ static void synaptics_i2c_work_handler(struct work_struct *work) * We poll the device once in THREAD_IRQ_SLEEP_SECS and * if error is detected, we try to reset and reconfigure the touchpad. */ - mod_delayed_work(system_wq, &touch->dwork, delay); + mod_delayed_work(system_dfl_wq, &touch->dwork, delay); } static int synaptics_i2c_open(struct input_dev *input) @@ -461,7 +461,7 @@ static int synaptics_i2c_open(struct input_dev *input) return ret; if (polling_req) - mod_delayed_work(system_wq, &touch->dwork, + mod_delayed_work(system_dfl_wq, &touch->dwork, msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); return 0; @@ -620,7 +620,7 @@ static int synaptics_i2c_resume(struct device *dev) if (ret) return ret; - mod_delayed_work(system_wq, &touch->dwork, + mod_delayed_work(system_dfl_wq, &touch->dwork, msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); return 0; -- 2.47.3