linux-kernel - Re: [PATCH 01/12] Force always inline for gcc 4.5 when optimizing for size

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Message-ID: <alpine.DEB.2.00.1105220816480.12897@skynet.skynet.ie>
Date:	Sun, 22 May 2011 08:21:47 +0100 (IST)
From:	Dave Airlie <airlied@...ux.ie>
To:	Andi Kleen <andi@...stfloor.org>
cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 01/12] Force always inline for gcc 4.5 when optimizing
 for size


> some subsystems (in my kernel) had a real problem. The biggest
> offender was DRM. I fixed those up manually by removing
> inlines. With these changes (and disabling DRM debugging, which is on
> by default) I get a kernel with force inline that is a few KB smaller.
> With DRM debugging enabled it's about 50k larger (nearly
> all of it in DRM, mostly radeon). I hope the default for this
> can be changed.

Oh these look like a good plan, one of our contributors has an inline 
fetish and it got cut-n-pasted into a few places particular in radeon.

But we won't be turning DRM debugging off, its what we use to debug things 
in the field, I did get a patch recently to reduce some of its overhead

5ad3d8831f0c97257460c11ddcc1cc0466c762d4 in my drm-next branch,
drm: Create and use drm_err from Joe Perches.

Dave.
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