linux-kernel - [PATCH] kernel/workqueue: Use __printf markup to silence compiler in function 'alloc

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Date:   Tue, 12 Mar 2019 21:21:26 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Tejun Heo <tj@...nel.org>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] kernel/workqueue: Use __printf markup to silence compiler in function 'alloc_workqueue'

Silence warnings (triggered at W=1) by adding relevant __printf attributes.

  kernel/workqueue.c:4249:2: warning: function 'alloc_workqueue' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
 kernel/workqueue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 4026d1871407..56b7cf898f10 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4208,6 +4208,7 @@ static int init_rescuer(struct workqueue_struct *wq)
 	return 0;
 }
 
+__printf(1, 4)
 struct workqueue_struct *alloc_workqueue(const char *fmt,
 					 unsigned int flags,
 					 int max_active, ...)
-- 
2.20.1