thermal: core: Add WQ_UNBOUND to alloc_workqueue() users

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

   commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
   commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.

This workqueue has no benefits being per-CPU, so make it unbound adding
WQ_UNBOUND, removing also the WQ_POWER_EFFICIENT flag.

Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
[ rjw: Subject tweak ]
Link: https://patch.msgid.link/20260515084920.70544-1-marco.crivellari@suse.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 9b9fa51067bd46256192bf08e6b8cc24bc1810ed..7d7ce855ae88bf54d2a3a6cad886344978ed5391 100644 (file)
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1855,7 +1855,7 @@ static int __init thermal_init(void)
        if (result)
                goto error;
 
-       thermal_wq = alloc_workqueue("thermal_events", WQ_POWER_EFFICIENT, 0);
+       thermal_wq = alloc_workqueue("thermal_events", WQ_UNBOUND, 0);
        if (!thermal_wq) {
                result = -ENOMEM;
                goto unregister_netlink;