linux-kernel - Re: [PATCH] drm: Reduce object size of DRM_ERROR and DRM

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Message-ID: <20180319135351.GL14155@phenom.ffwll.local>
Date:   Mon, 19 Mar 2018 14:53:51 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Joe Perches <joe@...ches.com>
Cc:     Daniel Vetter <daniel@...ll.ch>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH] drm: Reduce object size of DRM_ERROR and DRM_DEBUG uses

On Fri, Mar 16, 2018 at 05:29:02AM -0700, Joe Perches wrote:
> On Fri, 2018-03-16 at 08:41 +0100, Daniel Vetter wrote:
> > On Tue, Mar 13, 2018 at 03:02:15PM -0700, Joe Perches wrote:
> > > drm_printk is used for both DRM_ERROR and DRM_DEBUG with unnecessary
> > > arguments that can be removed by creating separate functins.
> > > 
> > > Create specific functions for these calls to reduce x86/64 defconfig
> > > size by ~20k.
> > > 
> > > Modify the existing macros to use the specific calls.
> > > 
> > > new:
> > > $ size -t drivers/gpu/drm/built-in.a | tail -1
> > > 1876562	  44542	    995	1922099	 1d5433	(TOTALS)
> > > 
> > > old:
> > > $ size -t drivers/gpu/drm/built-in.a | tail -1
> > > 1897565	  44542	    995	1943102	 1da63e	(TOTALS)
> > > 
> > > Miscellanea:
> > > 
> > > o intel_display requires a change to use the specific calls.
> > > 
> > > Signed-off-by: Joe Perches <joe@...ches.com>
> > 
> > Impressed with the size of the bikeshed piled on top of this I decided to
> > cut this all short by merging it.
> 
> Thanks.
> 
> There was a similar patch for the DRM_DEV_ macros
> awhile ago that also reduced object code.
> 
> https://lkml.org/lkml/2017/9/25/247
> 
> Never applied.
> 
> Want a remerge resend?

Yeah dropped out of my inbox, resending is easier. Please do so.

In case you wonder, I try to fairly intentionally drop stuff on the floor,
to force other people on dri-devel to not load everything onto me, making
me a bottleneck. But then occasionally a patch drops through all nets
because tracking mailing lists is impossible :-/
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch