linux-kernel - [for-linus][PATCH 1/7] trace/osnoise: Rename main variable to tracer

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Date:   Wed, 11 Aug 2021 21:12:51 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Matthew Wilcox <willy@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Daniel Bristot de Oliveira <bristot@...nel.org>
Subject: [for-linus][PATCH 1/7] trace/osnoise: Rename main variable to tracer_main

From: Daniel Bristot de Oliveira <bristot@...nel.org>

The *main variable in start_kthread() is causing warnings in some
compilers/analyzers. Although it is not necessarily a problem, it is
not a problem changing the variable name too.

Rename the *main variable to *tracer_main.

No functional change.

Link: https://lkml.kernel.org/r/fc62f7deb2258f6068d77c3e734633e3c3511464.1627977494.git.bristot@kernel.org

Cc: Matthew Wilcox <willy@...radead.org>
Fixes: c8895e271f79 ("trace/osnoise: Support hotplug operations")
Reported-by: Randy Dunlap <rdunlap@...radead.org>
Acked-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Daniel Bristot de Oliveira <bristot@...nel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
---
 kernel/trace/trace_osnoise.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index a7e3c24dee13..912036d6a668 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -1458,20 +1458,20 @@ static void stop_per_cpu_kthreads(void)
 static int start_kthread(unsigned int cpu)
 {
 	struct task_struct *kthread;
-	void *main = osnoise_main;
+	void *tracer_main = osnoise_main;
 	char comm[24];
 
 #ifdef CONFIG_TIMERLAT_TRACER
 	if (osnoise_data.timerlat_tracer) {
 		snprintf(comm, 24, "timerlat/%d", cpu);
-		main = timerlat_main;
+		tracer_main = timerlat_main;
 	} else {
 		snprintf(comm, 24, "osnoise/%d", cpu);
 	}
 #else
 	snprintf(comm, 24, "osnoise/%d", cpu);
 #endif
-	kthread = kthread_create_on_cpu(main, NULL, cpu, comm);
+	kthread = kthread_create_on_cpu(tracer_main, NULL, cpu, comm);
 
 	if (IS_ERR(kthread)) {
 		pr_err(BANNER "could not start sampling thread\n");
-- 
2.30.2