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workqueue: add printf attribute to __alloc_workqueue()

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Fix a compiler warning with W=1:
kernel/workqueue.c: error:
function ‘__alloc_workqueue’ might be a candidate for ‘gnu_printf’
format attribute[-Werror=suggest-attribute=format]
 5657 |  name_len = vsnprintf(wq->name, sizeof(wq->name), fmt, args);
      |  ^~~~~~~~

Fixes: 9b59a85a84dc ("workqueue: Don't call va_start / va_end twice")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Su Hui 2024-12-24 12:43:58 +08:00 committed by Tejun Heo
parent de35994ecd
commit d57212f281
1 changed files with 1 additions and 0 deletions
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kernel/workqueue.c
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@ -5645,6 +5645,7 @@ static void wq_adjust_max_active(struct workqueue_struct *wq)
} while (activated);
}
__printf(1, 0)
static struct workqueue_struct *__alloc_workqueue(const char *fmt,
unsigned int flags,
int max_active, va_list args)