linux-kernel - [PATCH] workqueue: Make workqueue

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Message-Id: <20200223072852.3954-1-chen.yu@easystack.cn>
Date:   Sun, 23 Feb 2020 15:28:52 +0800
From:   Yu Chen <chen.yu@...ystack.cn>
To:     tj@...nel.org
Cc:     linux-kernel@...r.kernel.org, 33988979@....com,
        Yu Chen <chen.yu@...ystack.cn>
Subject: [PATCH] workqueue: Make workqueue_init*() return void

The return values of workqueue_init() and workqueue_early_int() are 
always 0, and there is no usage of their return value.  So just make 
them return void.

Signed-off-by: Yu Chen <chen.yu@...ystack.cn>
---
 include/linux/workqueue.h | 4 ++--
 kernel/workqueue.c        | 8 ++------
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 4261d1c6e..c86a7691e 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -649,7 +649,7 @@ int workqueue_online_cpu(unsigned int cpu);
 int workqueue_offline_cpu(unsigned int cpu);
 #endif
 
-int __init workqueue_init_early(void);
-int __init workqueue_init(void);
+void __init workqueue_init_early(void);
+void __init workqueue_init(void);
 
 #endif
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index cfc923558..12f491e9c 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -5896,7 +5896,7 @@ static void __init wq_numa_init(void)
  * items.  Actual work item execution starts only after kthreads can be
  * created and scheduled right before early initcalls.
  */
-int __init workqueue_init_early(void)
+void __init workqueue_init_early(void)
 {
 	int std_nice[NR_STD_WORKER_POOLS] = { 0, HIGHPRI_NICE_LEVEL };
 	int hk_flags = HK_FLAG_DOMAIN | HK_FLAG_WQ;
@@ -5963,8 +5963,6 @@ int __init workqueue_init_early(void)
 	       !system_unbound_wq || !system_freezable_wq ||
 	       !system_power_efficient_wq ||
 	       !system_freezable_power_efficient_wq);
-
-	return 0;
 }
 
 /**
@@ -5976,7 +5974,7 @@ int __init workqueue_init_early(void)
  * are no kworkers executing the work items yet.  Populate the worker pools
  * with the initial workers and enable future kworker creations.
  */
-int __init workqueue_init(void)
+void __init workqueue_init(void)
 {
 	struct workqueue_struct *wq;
 	struct worker_pool *pool;
@@ -6023,6 +6021,4 @@ int __init workqueue_init(void)
 
 	wq_online = true;
 	wq_watchdog_init();
-
-	return 0;
 }
-- 
2.17.1