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Message-ID: <X+ScpMyiKFqhySG6@pendragon.ideasonboard.com>
Date: Thu, 24 Dec 2020 15:50:28 +0200
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Andy Shevchenko <andy.shevchenko@...il.com>
Cc: Ricardo Ribalda <ribalda@...omium.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Linux Media Mailing List <linux-media@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Joe Perches <joe@...ches.com>
Subject: Re: [PATCH v7 08/12] media: uvcvideo: Use dev_ printk aliases
Hi Andy,
On Thu, Dec 24, 2020 at 02:59:34PM +0200, Andy Shevchenko wrote:
> On Wed, Dec 23, 2020 at 3:39 PM Ricardo Ribalda wrote:
> >
> > Replace all the uses of printk() and uvc_printk() with its
> > equivalent dev_ alias macros.
>
> > Modify uvc_warn_once() macro to use dev_info instead printk().
>
> ...
>
> > +#define uvc_warn_once(_dev, warn, fmt, ...) \
> > +do { \
> > + if (!test_and_set_bit(warn, &(_dev)->warnings)) \
> > + dev_info(&(_dev)->udev->dev, fmt, ##__VA_ARGS__); \
> > +} while (0)
>
> ...
>
> Why not to use dev_warn_once() instead?
uvc_warn_once() prints the warning once per device, not once globally.
--
Regards,
Laurent Pinchart
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