linux-kernel - Re: libata bugfix: preserve LBA bit for HDIO_DRIVE

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]

Message-ID: <460DD725.1040607@gmail.com>
Date:	Sat, 31 Mar 2007 12:36:05 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Mark Lord <mlord@...ox.com>
CC:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	alan@...rguk.ukuu.org.uk,
	IDE/ATA development list <linux-ide@...r.kernel.org>
Subject: Re: libata bugfix: preserve LBA bit for HDIO_DRIVE_TASK

Mark Lord wrote:
> Ideally, this would go into linux-2.6.21.
> 
> Preserve the LBA bit in the DevSel/Head register for HDIO_DRIVE_TASK.
> 
> Signed-off-by:  Mark Lord <mlord@...ox.com>
> ---
> --- linux/drivers/ata/libata-scsi.c.orig    2007-03-21
> 13:35:02.000000000 -0400
> +++ linux/drivers/ata/libata-scsi.c    2007-03-30 17:40:58.000000000 -0400
> @@ -333,7 +333,7 @@
>     scsi_cmd[8]  = args[3];
>     scsi_cmd[10] = args[4];
>     scsi_cmd[12] = args[5];
> -    scsi_cmd[13] = args[6] & 0x0f;
> +    scsi_cmd[13] = args[6] & 0x4f;
>     scsi_cmd[14] = args[0];
> 
>     /* Good values for timeout and retries?  Values below

IDE seems to be just overriding devsel (0x10) and leaving the rest
alone.  Maybe we should do (args[6] & ~0x10) here?  Or is it safer this way?

Thanks.

-- 
tejun
-
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/