linux-kernel - Re: [Patch v2 10/13] media: am437x-vpfe: Remove print

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Date:   Fri, 20 Sep 2019 07:18:37 -0500
From:   Benoit Parrot <bparrot@...com>
To:     Hans Verkuil <hverkuil@...all.nl>
CC:     Prabhakar Lad <prabhakar.csengg@...il.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [Patch v2 10/13] media: am437x-vpfe: Remove print_fourcc helper

Hans Verkuil <hverkuil@...all.nl> wrote on Fri [2019-Sep-20 10:21:17 +0200]:
> On 9/19/19 10:41 PM, Benoit Parrot wrote:
> > print_fourcc helper function was used for debug log to
> > convert a pixel format code into its readable form for display
> > purposes. But since it used a single static buffer to perform
> > the conversion this might lead to display format issue when more
> > than one instance was invoked simultaneously.
> > 
> > It turns out that print_fourcc can be safely replace by using
> > "%4pE" instead and passing the pointer to the fourcc code.
> 
> If this series is merged:
> 
> https://www.mail-archive.com/linux-media@vger.kernel.org/msg149985.html
> 
> then this patch needs to be rewritten. So I'll skip this patch for now.

Ok I'll monnitor the status of this patch and see if/when I'll rebase this
one.

Benoit

> 
> Regards,
> 
> 	Hans
>