Re: [PATCH v3] workqueue: Wrap flush_workqueue() using a macro

[Joe Perches]

On Mon, 2022-05-16 at 14:00 +0900, Tetsuo Handa wrote:
[]
> Changes in v3:
>   Revert suggested change in v2, for kernel test robot <lkp@xxxxxxxxx> found
> 
>     warning: Function parameter or member 'flush_workqueue' not described in 'void'
>     warning: expecting prototype for flush_workqueue(). Prototype was for void() instead
> 
>   when built with W=1 option.

Odd, perhaps that not a valid error message and is a defect
in gcc's parsing of function definitions.

> Changes in v2:
>   Use "void (flush_workqueue)(struct workqueue_struct *wq)" and remove
>   "#undef flush_workqueue", suggested by Joe Perches <joe@xxxxxxxxxxx>.