linux-kernel - Re: [PATCH 3/3] EDAC: Add Fully-Buffered DIMM APIs to core

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Date:	Thu, 14 Dec 2006 13:01:21 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Alan <alan@...rguk.ukuu.org.uk>
Cc:	Doug Thompson <norsk5@...oo.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] EDAC: Add Fully-Buffered DIMM APIs to core

On Thu, 14 Dec 2006 10:58:09 +0000
Alan <alan@...rguk.ukuu.org.uk> wrote:

> > +void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci,
> > +				unsigned int csrow,
> > +				unsigned int channela,
> > +				unsigned int channelb,
> > +				char *msg)
> > +{
> > +	int len = EDAC_MC_LABEL_LEN * 4;
> > +	char labels[len + 1];
> 
> Have you checked gcc generates the right code from this and not a dynamic
> allocation. I'm not sure if you want "const int len" to force that ?

gcc does the right thing.  gcc-4.0.2 on x86_64, at least.
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