linux-kernel - Re: [PATCH 01/12] drm/i915: Indicate which pipe failed the fastset check overall

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Message-ID: <ZdyqAMfEfhyk6zm2@smile.fi.intel.com>
Date: Mon, 26 Feb 2024 17:10:56 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Jani Nikula <jani.nikula@...ux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	intel-gfx@...ts.freedesktop.org, Petr Mladek <pmladek@...e.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/12] drm/i915: Indicate which pipe failed the fastset
 check overall

On Mon, Feb 26, 2024 at 04:57:58PM +0200, Jani Nikula wrote:
> On Fri, 23 Feb 2024, Ville Syrjälä <ville.syrjala@...ux.intel.com> wrote:
> > On Thu, Feb 22, 2024 at 04:46:12PM -0500, Rodrigo Vivi wrote:

..

> > I think the proper solution would be to have actually
> > sensible conversion specifiers in the format string.
> > So instead of %<set of random characters> we'd have something
> > more like %{drm_crtc} (or whatever color you want to throw
> > on that particular bikeshed).
> 
> Personally I suck at remembering even the standard printf conversion
> specifiers, let alone all the kernel extensions. I basically have to
> look them up every time. I'd really love some %{name} format for named
> pointer things. And indeed preferrably without the %p. Just %{name}.

It will become something like %{name[:subextensions]}, where subextensions
is what we now have with different letters/numbers after %pX (X is a letter
which you proposed to have written as name AFAIU).

> And then we could discuss adding support for drm specific things. I
> guess one downside is that the functions to do this would have to be in
> vsprintf.c instead of drm. Unless we add some code in drm for this
> that's always built-in.

-- 
With Best Regards,
Andy Shevchenko