PM: sleep: Drop superfluous might_sleep() calls

JIRA: https://issues.redhat.com/browse/RHEL-109251

commit 5e8be76
Author: Zhongqiu Han <quic_zhonhan@quicinc.com>
Date: Thu, 03 Jul 2025 16:34:34 +0000

Drop superfluous might_sleep() calls from dpm_resume(), dpm_complete(),
and dpm_prepare(). These functions already invoke primitives that
implicitly check for sleep in atomic context:

 - dpm_resume() and dpm_complete() invoke mutex_lock(), which internally
   triggers might_sleep().

 - dpm_prepare() calls wait_for_device_probe(), which internally uses
   flush_work(), and thus might_sleep().

These annotations are unnecessary and can be dropped to reduce clutter.

Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Link: https://patch.msgid.link/20250617084650.341262-1-quic_zhonhan@quicinc.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>

Author: mlangsdorf

drivers/base/power/main.c

@@ -1109,7 +1109,6 @@ void dpm_resume(pm_message_t state)
 	ktime_t starttime = ktime_get();
 
 	trace_suspend_resume(TPS("dpm_resume"), state.event, true);
-	might_sleep();
 
 	pm_transition = state;
 	async_error = 0;
@@ -1212,7 +1211,6 @@ void dpm_complete(pm_message_t state)
 	struct list_head list;
 
 	trace_suspend_resume(TPS("dpm_complete"), state.event, true);
-	might_sleep();
 
 	INIT_LIST_HEAD(&list);
 	mutex_lock(&dpm_list_mtx);
@@ -2123,7 +2121,6 @@ int dpm_prepare(pm_message_t state)
 	int error = 0;
 
 	trace_suspend_resume(TPS("dpm_prepare"), state.event, true);
-	might_sleep();
 
 	/*
 	 * Give a chance for the known devices to complete their probes, before