linux-kernel - Re: [PATCH 46/64] ide: add drive->pio

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Date:	Mon, 18 Jan 2010 22:28:22 +0300
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 46/64] ide: add drive->pio_mode field

Bartlomiej Zolnierkiewicz wrote:

> From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Subject: [PATCH] ide: add drive->pio_mode field
>
> Add pio_mode field to ide_drive_t matching pio_mode field used in
> struct ata_device.
>
> The validity of the field is restricted to ->set_pio_mode method
> only currently in IDE subsystem.
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> ---
>  drivers/ide/ide-devsets.c   |    2 ++
>  drivers/ide/ide-probe.c     |    2 ++
>  drivers/ide/ide-xfer-mode.c |    3 +++
>  include/linux/ide.h         |    1 +
>  4 files changed, 8 insertions(+)
>
> Index: b/drivers/ide/ide-devsets.c
> ===================================================================
> --- a/drivers/ide/ide-devsets.c
> +++ b/drivers/ide/ide-devsets.c
> @@ -105,6 +105,8 @@ static int set_pio_mode(ide_drive_t *dri
>  		return -ENOSYS;
>  
>  	if (set_pio_mode_abuse(drive->hwif, arg)) {
> +		drive->pio_mode = arg + XFER_PIO_0;
> +
>   

   Er, didn't understand this... these 'arg' values are not really PIO 
modes, no?

>  		if (arg == 8 || arg == 9) {
>  			unsigned long flags;
>   

MBR, Sergei

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