Re: [PATCH] Staging: speakup: speakup_keypc.c: usleep_range is preferred over udelay

[Greg KH <gregkh@linuxfoundation.org>]

On Wed, Jul 12, 2017 at 04:53:53PM +0530, Jaya Durga wrote:
> Fix checkpatch issue: CHECK: usleep_range is preferred over udelay;
> 
> Signed-off-by: Jaya Durga <rjdurga@gmail.com>
> ---
>  drivers/staging/speakup/speakup_keypc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/speakup/speakup_keypc.c b/drivers/staging/speakup/speakup_keypc.c
> index d3203f8..1ba4cfc 100644
> --- a/drivers/staging/speakup/speakup_keypc.c
> +++ b/drivers/staging/speakup/speakup_keypc.c
> @@ -28,7 +28,7 @@
>  
>  #define DRV_VERSION "2.10"
>  #define SYNTH_IO_EXTENT	0x04
> -#define SWAIT udelay(70)
> +#define SWAIT usleep_range(70, 150)

Ick, why not just get rid of SWAIT entirely please?


>  #define PROCSPEECH 0x1f
>  #define SYNTH_CLEAR 0x03
>  
> @@ -164,7 +164,7 @@ static const char *synth_immediate(struct spk_synth *synth, const char *buf)
>  			if (--timeout <= 0)
>  				return oops();
>  		outb_p(ch, synth_port);
> -		udelay(70);
> +		usleep_range(70, 150);

And you are sure it is ok to wait up to 150 long here?

thanks,

greg k-h