On Thu, Jul 23, 2020 at 9:17 PM Felipe Balbi <balbi@xxxxxxxxxx> wrote:
>
> Nicolas Boichat <drinkcat@xxxxxxxxxxxx> writes:
>
> > trace_printk should not be used in production code, replace it
> > call with dev_dbg.
> >
> > Signed-off-by: Nicolas Boichat <drinkcat@xxxxxxxxxxxx>
> >
> > ---
> >
> > 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.
The patch was already merged by Greg
(https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/usb/cdns3/gadget.c?id=b3a5ce874c2619c9b8a6c5bbcfefdb95e0227600),
but feel free to do that as a follow-up CL.
Looks like Peter -- the main author, is ok with dev_dbg (also,
apologies for missing the R-b tag when I sent a v2 -- which is the one
that was merged by Greg).
Thanks,
>
> --
> balbi
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