linux-kernel - Re: [PATCH 1/4] x86, ptdump: Add the functionality to dump an arbitrary pagetable

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Message-ID: <52D75A55.2080503@zytor.com>
Date:	Wed, 15 Jan 2014 20:04:37 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Dave Young <dyoung@...hat.com>,
	Arjan van de Ven <arjan@...ux.intel.com>
CC:	Borislav Petkov <bp@...en8.de>,
	Linux EFI <linux-efi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Borislav Petkov <bp@...e.de>,
	Matt Fleming <matt@...sole-pimps.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Toshi Kani <toshi.kani@...com>
Subject: Re: [PATCH 1/4] x86, ptdump: Add the functionality to dump an arbitrary
 pagetable

On 01/15/2014 07:03 PM, Dave Young wrote:
>>
>> making something harder to grep and less standardized is hardly cleaner
>> and these things compile to nothing for non-modules.
> 
> It's not nothing, just very small increasement:
>    text	   data	    bss	    dec	    hex	filename
> 7636121	1391824	9355264	18383209	1188169	vmlinux
> 
>    text	   data	    bss	    dec	    hex	filename
> 7636113	1391824	9355264	18383201	1188161	vmlinux
> 
> I do not want to insist on this minor problem, if you want please keep it.
> 

Now *that* we can fix by making these macros expand to nothing if you
are compiling for a nonmodule, right?  That will benefit code that
legitimately can compile as a module but is configured "y", too.

	-hpa




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