linux-kernel - Re: [PATCH] libata: provide the ability to disable a disk via the params.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 12 Dec 2013 21:36:55 +0100
From:	Levente Kurusa <levex@...ux.com>
To:	"Robin H. Johnson" <robbat2@...too.org>, Tejun Heo <tj@...nel.org>
CC:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [PATCH] libata: provide the ability to disable a disk via the
 params.

Hi, Robin.

2013-12-12 21:22, Robin H. Johnson:
> On Thu, Dec 12, 2013 at 08:39:35AM -0500, Tejun Heo wrote:
>> Hello, Robin.
>>
>> On Sat, Dec 07, 2013 at 04:56:27PM -0800, Robin H. Johnson wrote:
>>> +		{ "disable",	.horkage_on	= ATA_HORKAGE_DISABLE },
>>> +		{ "nodisable",	.horkage_off	= ATA_HORKAGE_DISABLE },
>> Given the current usage of ATA_HORKAGE_DISABLE, I don't think we need
>> "nodisable".  Let's just add "disable" for now.  Can you please update
>> the patch and resend?
> Before I do so, I have two questions:
> 1.
> Countering your nodisable comment, would it be valid to do:
> libata.force=2:disable libata.force=2.02:nodisable
> To disable all of port 2 except device 2?

I think that makes sense and I support having 'nodisable'.
>
> 2. One of my friends wondered if it would be worthwhile to add force
> keywords for other HORKAGE bits, and if so, should the
> ata_lflag/ata_link force bits also be presented?

I don't think so. Most of the other HORKAGEs are automatically
recognized and applied by the code. I think the only ones
which can cause trouble if not detected at first are the ones that are
currently in the list.

-- 
Regards,
Levente Kurusa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/