netdev - Re: [PATCH] sfc: Fix dependency for SFC

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Date:	Wed, 19 Nov 2008 13:37:50 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-net-drivers@...arflare.com,
	David Woodhouse <dwmw2@...radead.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org
Subject: Re: [PATCH] sfc: Fix dependency for SFC_MTD

Ben Hutchings wrote:
> Randy Dunlap found that SFC_MTD was selected when sfc was built-in and
> the MTD core was a module.  Don't allow that combination.
> 
> Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>

Acked-by: Randy Dunlap <randy.dunlap@...cle.com>

I realized that this problem came up because SFC_MTD is a boolean
that depends on tristates, so the boolean is set (=y) when
SFC=y or SFC=m.  Thus extra handling for it is needed,
like Ben did here.

> ---
>  drivers/net/sfc/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> Now with S-o-b; sorry for the spam.
> 
> Ben.
> 
> diff --git a/drivers/net/sfc/Kconfig b/drivers/net/sfc/Kconfig
> index 3e25fb3..c535408 100644
> --- a/drivers/net/sfc/Kconfig
> +++ b/drivers/net/sfc/Kconfig
> @@ -14,7 +14,7 @@ config SFC
>  	  will be called sfc.
>  config SFC_MTD
>  	bool "Solarflare Solarstorm SFC4000 flash MTD support"
> -	depends on SFC && MTD
> +	depends on SFC && MTD && !(SFC=y && MTD=m)
>  	default y
>  	help
>  	  This exposes the on-board flash memory as an MTD device (e.g.

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