linux-kernel - [PATCH] tracing/osnoise: Fix sparse warning in function start

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Date:   Tue, 4 Jan 2022 17:48:29 +0800
From:   Wang ShaoBo <bobo.shaobowang@...wei.com>
To:     <rostedt@...dmis.org>
CC:     <xiexiuqi@...wei.com>, <cj.chengjian@...wei.com>,
        <liwei391@...wei.com>, <bristot@...nel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] tracing/osnoise: Fix sparse warning in function start_kthread

Change main to main_func to fix following sparse warning:

kernel/trace/trace_osnoise.c: In function ‘start_kthread’:
kernel/trace/trace_osnoise.c:1674:8: warning: ‘main’ is usually a function [-Wmain]
  void *main = osnoise_main;
        ^~~~

Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
---
 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 7520d43aed55..2bebf31d4baf 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -1691,17 +1691,17 @@ static void stop_per_cpu_kthreads(void)
 static int start_kthread(unsigned int cpu)
 {
 	struct task_struct *kthread;
-	void *main = osnoise_main;
+	void *main_func = osnoise_main;
 	char comm[24];
 
 	if (timerlat_enabled()) {
 		snprintf(comm, 24, "timerlat/%d", cpu);
-		main = timerlat_main;
+		main_func = timerlat_main;
 	} else {
 		snprintf(comm, 24, "osnoise/%d", cpu);
 	}
 
-	kthread = kthread_create_on_cpu(main, NULL, cpu, comm);
+	kthread = kthread_create_on_cpu(main_func, NULL, cpu, comm);
 
 	if (IS_ERR(kthread)) {
 		pr_err(BANNER "could not start sampling thread\n");
-- 
2.25.1