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From:   Jani Nikula <jani.nikula@linux.intel.com>
To:     Joe Perches <joe@perches.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Petr Mladek <pmladek@suse.com>
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        Dave Stevenson <dave.stevenson@raspberrypi.com>,
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        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        linux-media@vger.kernel.org,
        Ville =?utf-8?B?U3lyasOkbMOk?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH 1/1] lib/vsprintf: Add support for printing V4L2 and DRM fourccs
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Date:   Fri, 03 Apr 2020 09:37:14 +0300
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On Thu, 02 Apr 2020, Joe Perches <joe@perches.com> wrote:
> On Thu, 2020-04-02 at 11:34 +0300, Jani Nikula wrote:
>> Or could we conceive of a way to make this locally extensible yet safe,
>> letting callers use something like %{foo}, as well as providing a
>> locally relevant function to do the conversion?
>
> No.  printf validation would be broken.

I tossed the idea on a whim, and thinking further I could probably come
up with a number of challenges, but care to elaborate on what you see as
the problem in validation?

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center