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From: Mark Lord <liml@rtr.ca>
To: Al Boldi <a1426z@gawab.com>
Cc: Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: [FIX] ide-io: increase timeout value to allow for slave wakeup
Date: Sun, 23 Apr 2006 21:14:12 -0400	[thread overview]
Message-ID: <444C2664.7060803@rtr.ca> (raw)
In-Reply-To: <200604231422.31176.a1426z@gawab.com>

Al Boldi wrote:
 ..
> Also apply this one to get rid of this message:
> 
> 	hdb: set_drive_speed_status: status=0x40 { DriveReady }
> 	ide: failed opcode was: unknown
> 
> Maybe someone on the ide list can comment on this first though.
> 
> --- 16/include/linux/ide.h.orig	2006-03-31 19:12:51.000000000 +0300
> +++ 16/include/linux/ide.h	2006-04-23 13:06:32.000000000 +0300
> @@ -120,7 +120,7 @@ typedef unsigned char	byte;	/* used ever
>  #define IDE_BCOUNTL_REG		IDE_LCYL_REG
>  #define IDE_BCOUNTH_REG		IDE_HCYL_REG
>  
> -#define OK_STAT(stat,good,bad)	(((stat)&((good)|(bad)))==(good))
> +#define OK_STAT(stat,good,bad)	(((stat)&((good)|(bad)))==((stat)&(good)))
>  #define BAD_R_STAT		(BUSY_STAT   | ERR_STAT)
>  #define BAD_W_STAT		(BAD_R_STAT  | WRERR_STAT)
>  #define BAD_STAT		(BAD_R_STAT  | DRQ_STAT)
> 

Assuming hdb is a CDROM/optical drive, then this change makes sense for that.
But I don't think it is a valid (good) change for regular ATA disks.

A more complex patch is required, one which correctly handles each drive type.

cheers

      reply	other threads:[~2006-04-24  1:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-22 20:59 [FIX] ide-io: increase timeout value to allow for slave wakeup Al Boldi
2006-04-22 21:58 ` Andrew Morton
2006-04-23  4:21   ` Al Boldi
2006-04-23  4:43     ` Andrew Morton
2006-04-23 11:22       ` Al Boldi
2006-04-24  1:14         ` Mark Lord [this message]

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