linux-kernel - Re: [PATCH 2/9] ide-disk: set

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Date:	Sun, 24 Aug 2008 01:45:49 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/9] ide-disk: set_addressing() fixes

Hello.

Bartlomiej Zolnierkiewicz wrote:

> * Return -EIO if arg > 0 and LBA48 is unsupported.
>
> * No need to reset ->addressing.
>
> * Make ->addressing a single bit flag.
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
>   
[...]
> Index: b/include/linux/ide.h
> ===================================================================
> --- a/include/linux/ide.h
> +++ b/include/linux/ide.h
> @@ -507,7 +507,7 @@ struct ide_drive_s {
>  	unsigned sleeping	: 1;	/* 1=sleeping & sleep field valid */
>  	unsigned post_reset	: 1;
>  	unsigned udma33_warned	: 1;
> -	unsigned addressing	: 2;	/* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */
> +	unsigned addressing	: 1;	/* 0=28-bit, 1=48-bit */
>  	unsigned wcache		: 1;	/* status of write cache */
>  	unsigned nowerr		: 1;	/* used for ignoring ATA_DF */
>   

   Don't you want to get rid of things like:

        u8 lba48 = (drive->addressing == 1) ? 1 : 0;

MBR, Sergei


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