linux-kernel - Re: [PATCH] non-existant config in kernel source (CONFIG

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Date:	Fri, 05 Feb 2010 17:08:45 +0300
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Christoph Egger <siccegge@...d.informatik.uni-erlangen.de>
CC:	Jeff Garzik <jgarzik@...ox.com>,
	Erik Inge Bols?? <knan-lkml@...uin.net>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	vamos@...informatik.uni-erlangen.de,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] non-existant config in kernel source (CONFIG_AHCI)

Hello.

Christoph Egger wrote:

> 	As part of the VAMOS[0] research project at the University of
> Erlangen we're checking referential integrity between kernel KConfig
> options and in-code Conditional blocks.
>
> 	While there's one place that is checking for CONFIG_AHCI, this
> config being referenced from printed books and people pointing to this
> config item I can't find it anywhere in the kernel kconfig
> infrastruture and it doesn't seem to ever have been there (since
> git). Is this maybe a typo for CONFIG_SATA_AHCI? reading the
> information for the affected piece of source it would actually make
> sense.
>
> 	Please keep me informed of this patch getting confirmed /
> merged so we can keep track of it.
>
> Regards
>
> 	Christoph Egger
>
> [0] http://vamos1.informatik.uni-erlangen.de/
>
> ----
> From 60136f94d9c97f9a788738e30731e25bd794322b Mon Sep 17 00:00:00 2001
> From: Christoph Egger <siccegge@...d.informatik.uni-erlangen.de>
> Date: Fri, 5 Feb 2010 13:26:33 +0100
> Subject: [PATCH] CONFIG_AHCI is really CONFIG_SATA_AHCI
>
> The marvell driver comtains a fallback to ahci for the sata ports
>   

   Only "contains".

> which is incorrectly checked as CONFIG_AHCI while the only AHCI config
> item is actually called SATA_AHCI (which also sounds sensible
> considering it's a fallback for the sata ports).
>
> Signed-off-by: Christoph Egger <siccegge@...d.informatik.uni-erlangen.de>
> ---
>  drivers/ata/pata_marvell.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
> index 950da39..eabd138 100644
> --- a/drivers/ata/pata_marvell.c
> +++ b/drivers/ata/pata_marvell.c
> @@ -147,7 +147,7 @@ static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *i
>  	if (pdev->device == 0x6101)
>  		ppi[1] = &ata_dummy_port_info;
>  
> -#if defined(CONFIG_AHCI) || defined(CONFIG_AHCI_MODULE)
> +#if defined(CONFIG_SATA_AHCI) || defined(SATA_CONFIG_AHCI_MODULE)
>   

   You surely meant CONFIG_SATA_AHCI_MODULE.

WBR, Sergei

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