From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 16EAF1A0712; Thu, 12 Mar 2026 20:19:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773346791; cv=none; b=WU4FJl58+tdfrwTb4d1gdxY2LyMWevKBxQySIRpRd01L6aK/km47ZxFjYW8xHKccxe/jZ/a6YCTXO+DXFVZD03y6ZJBWgZkqnyQkh1EatiHG4TYVGp5E+Mm3IrXZzheScnbkEQLOjXRAxZJzSNEN1L2+qpaAaikN1fnI0XPnAOE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773346791; c=relaxed/simple; bh=U9ErQx5Kjz589gWP1aH9WvvdDq+fcD4Knk/Aq+NhclM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=F3rI25HtMDySKvGJGzzAt+SArUh8O2PVMI3rCxGt2v8qsDiI4VB0wmeqjUWIjGQZ5LQYi9RB5vma7Hfp1uPg+4wO+AS5pQaFptKZ04AWSDE8fY4fiLy+huvyQPjLOBOhECUQh83etAzLmlmm0z++BoTIZuGZGN7qOP79/jnEKeA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UfOrIFFM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="UfOrIFFM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5D0F1C4CEF7; Thu, 12 Mar 2026 20:19:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773346791; bh=U9ErQx5Kjz589gWP1aH9WvvdDq+fcD4Knk/Aq+NhclM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UfOrIFFMsXmsZFXRtjJHeauFwFWSvT8kjq2CrQfgJLrnNCNQMDIzOjMVscnFgHqNI 3v57Ms3gz8ty49+QUsr+Cjih682MxiLusOyDGuNzJFXgb1RMJaVRqMfQKXESkzjFTZ XLWdhS4khrSTkcrMIO0KMCWoOAv4LPfSHxfOMbW8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tejun Heo , Marco Crivellari , Dmitry Torokhov , Sasha Levin Subject: [PATCH 6.12 082/265] Input: synaptics_i2c - replace use of system_wq with system_dfl_wq Date: Thu, 12 Mar 2026 21:07:49 +0100 Message-ID: <20260312201021.182449047@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260312201018.128816016@linuxfoundation.org> References: <20260312201018.128816016@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Marco Crivellari [ Upstream commit b3ee88e27798f0e8dd3a81867804d693da74d57d ] 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 Stable-dep-of: 870c2e7cd881 ("Input: synaptics_i2c - guard polling restart in resume") Signed-off-by: Sasha Levin --- 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 a0d707e47d932..c8ddfff2605ff 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; -- 2.51.0