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

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Date:	Tue, 14 Jan 2014 10:18:29 -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 01/13/2014 05:40 PM, Dave Young wrote:
> On 01/13/14 at 06:48am, Arjan van de Ven wrote:
>> On 1/13/2014 4:23 AM, Dave Young wrote:
>>>>
>>>>> How about do not limit to only if (pgd) case, instead do something
>>>>> like below: set dump_to_dmesg as a module parameter
>>>>
>>>> X86_PTDUMP is not a module.
>>>
>>> Hmm, I just see the module macros in the code, since it's a bool Kconfig
>>> I think the dump_pagetables.c need a cleanup,
>>> remove the #include <linux/module.h> and below lines:
>>> MODULE_LICENSE("GPL");
>>> MODULE_AUTHOR("Arjan van de Ven <arjan@...ux.intel.com>");
>>> MODULE_DESCRIPTION("Kernel debugging helper that dumps pagetables");
>>
>> personally I consider it good form to always have this kind of information in .c files,
>> regardless of the KConfig side of thing...
> 
> I agree it's good to add these infomation, but they can be added in comment.
> IMHO it will be better in that way.
> 

Why the [Finnish] do you feel that information needs to be in a
different form because it is (currently!) not available as a module?

	-hpa


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