linux-kernel - Re: mod_devicetable: Make dmi

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Date:	Tue, 19 May 2015 07:46:58 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Joe Perches <joe@...ches.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	LKML <linux-kernel@...r.kernel.org>,
	Quentin Casasnovas <quentin.casasnovas@...cle.com>
Subject: Re: mod_devicetable: Make dmi_strmatch.substr const char *

On Mon, 2015-05-18 at 17:07 -0700, Joe Perches wrote:
> 
> changed dmi_strmatch.substr from char * to char[79];
> 
> Changing it back to const char * would shrink an x86-64
> defconfig more than 100KB.
> 
> $ size vmlinux.old vmlinux.new
>     text    data     bss      dec    hex filename
> 11941725 1825624 1085440 14852789 e2a2b5 vmlinux.old
> 11921172 1730648 1085440 14737260 e0df6c vmlinux.new
> 
> modpost has changed a bit since 2008, is it's time to change it back?

Does the match table stuff still work if you do that? I thought the
point in changing to an array was to make the table extraction do the
right thing because it can't follow pointers...

-- 
dwmw2


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