From: Marco Crivellari Date: Tue, 4 Nov 2025 11:13:39 +0000 (+0100) Subject: drm/bridge: replace use of system_wq with system_percpu_wq X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=cd4fe814f3b2e98fc5fc5c74e17b2605a57abb4c;p=thirdparty%2Flinux.git drm/bridge: replace use of system_wq with system_percpu_wq 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. 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") system_wq should be the per-cpu workqueue, yet in this name nothing makes that clear, so replace system_wq with system_percpu_wq. The old wq (system_wq) will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Reviewed-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Link: https://patch.msgid.link/20251104111339.128685-1-marco.crivellari@suse.com --- diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index a094803ba7aa..37bb8123cf9b 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2048,7 +2048,7 @@ static void it6505_start_hdcp(struct it6505 *it6505) DRM_DEV_DEBUG_DRIVER(dev, "start"); it6505_reset_hdcp(it6505); - queue_delayed_work(system_wq, &it6505->hdcp_work, + queue_delayed_work(system_percpu_wq, &it6505->hdcp_work, msecs_to_jiffies(2400)); } diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c index 3b6b0e92cf89..bf4ab4eaf269 100644 --- a/drivers/gpu/drm/bridge/ti-tfp410.c +++ b/drivers/gpu/drm/bridge/ti-tfp410.c @@ -114,7 +114,7 @@ static void tfp410_hpd_callback(void *arg, enum drm_connector_status status) { struct tfp410 *dvi = arg; - mod_delayed_work(system_wq, &dvi->hpd_work, + mod_delayed_work(system_percpu_wq, &dvi->hpd_work, msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS)); }