linux-kernel - [PATCH 1/2] stop_machine: Add caller debug info to queue_stop_cpus

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Message-Id: <20201210163830.21514-2-valentin.schneider@arm.com>
Date:   Thu, 10 Dec 2020 16:38:29 +0000
From:   Valentin Schneider <valentin.schneider@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Peter Zijlstra <peterz@...radead.org>, tglx@...utronix.de,
        mingo@...nel.org, bigeasy@...utronix.de, qais.yousef@....com,
        swood@...hat.com, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vincent.donnefort@....com, tj@...nel.org,
        ouwen210@...mail.com, Qian Cai <cai@...hat.com>
Subject: [PATCH 1/2] stop_machine: Add caller debug info to queue_stop_cpus_work

Most callsites were covered by commit

  a8b62fd08505 ("stop_machine: Add function and caller debug info")

but this skipped queue_stop_cpus_work(). Add caller debug info to it.

Signed-off-by: Valentin Schneider <valentin.schneider@....com>
---
 kernel/stop_machine.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 971d8acceaec..cbc30271ea4d 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -409,6 +409,7 @@ static bool queue_stop_cpus_work(const struct cpumask *cpumask,
 		work->fn = fn;
 		work->arg = arg;
 		work->done = done;
+		work->caller = _RET_IP_;
 		if (cpu_stop_queue_work(cpu, work))
 			queued = true;
 	}
-- 
2.27.0