linux-kernel - [PATCH] workqueue: Add back _

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Message-ID: <8e60e269d4fe74af767baee1b3048dda6ac17e05.camel@perches.com>
Date:   Wed, 02 Jun 2021 20:11:48 -0700
From:   Joe Perches <joe@...ches.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     Lai Jiangshan <jiangshanlai@...il.com>,
        Bart Van Assche <bvanassche@....org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] workqueue: Add back __printf format validation

commit 669de8bda87b ("kernel/workqueue: Use dynamic lockdep keys for
workqueues") indirectly removed the printf validation for alloc_workqueue.

Add it back.

Signed-off-by: Joe Perches <joe@...ches.com>
---

compiled x86-64 defconfig only, but there _might_ be some new
warning for a fmt/arg mismatch somewhere.  Hope not...

 include/linux/workqueue.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index d15a7730ee18b..7c177267a81f3 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -404,6 +404,7 @@ extern struct workqueue_struct *system_freezable_power_efficient_wq;
  * RETURNS:
  * Pointer to the allocated workqueue on success, %NULL on failure.
  */
+__printf(1, 4)
 struct workqueue_struct *alloc_workqueue(const char *fmt,
 					 unsigned int flags,
 					 int max_active, ...);