[Intel-gfx] [PATCH 1/4] usb: cdns3: gadget: Replace trace_printk by dev_dbg

Felipe Balbi balbi at kernel.org
Thu Jul 23 13:17:10 UTC 2020


Nicolas Boichat <drinkcat at chromium.org> writes:

> trace_printk should not be used in production code, replace it
> call with dev_dbg.
>
> Signed-off-by: Nicolas Boichat <drinkcat at chromium.org>
>
> ---
>
> Unclear why a trace_printk was used in the first place, it's
> possible that some rate-limiting is necessary here.
>
>  drivers/usb/cdns3/gadget.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
> index 5e24c2e57c0d8c8..c303ab7c62d1651 100644
> --- a/drivers/usb/cdns3/gadget.c
> +++ b/drivers/usb/cdns3/gadget.c
> @@ -421,7 +421,7 @@ static int cdns3_start_all_request(struct cdns3_device *priv_dev,
>  		if ((priv_req->flags & REQUEST_INTERNAL) ||
>  		    (priv_ep->flags & EP_TDLCHK_EN) ||
>  			priv_ep->use_streams) {
> -			trace_printk("Blocking external request\n");
> +			dev_dbg(priv_dev->dev, "Blocking external request\n");

Instead, I would suggest adding a proper trace event here; one that
includes "priv_ep->flags" in the output.

-- 
balbi
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