linux-kernel - Re: [PATCH 22/26] ARM: pxa: only select SMC91x on xcep when networking is enabled

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Message-ID: <CAMPhdO_oP9t-miSr-OgWEUT9QycSQUx8y8gRyBcuswaB4rWiug@mail.gmail.com>
Date:	Sat, 8 Oct 2011 18:10:37 +0800
From:	Eric Miao <eric.y.miao@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Jason Chagas <jason.chagas@...vell.com>,
	Haojian Zhuang <haojian.zhuang@...vell.com>
Subject: Re: [PATCH 22/26] ARM: pxa: only select SMC91x on xcep when
 networking is enabled

On Sun, Oct 2, 2011 at 4:03 AM, Arnd Bergmann <arnd@...db.de> wrote:
> The smc91x driver is not strictly required for xcep, but it
> can only be enabled if ethernet support is built into the
> kernel, so make the dependency more specific.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  arch/arm/mach-pxa/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
> index 491c522..ef35ce9 100644
> --- a/arch/arm/mach-pxa/Kconfig
> +++ b/arch/arm/mach-pxa/Kconfig
> @@ -174,7 +174,7 @@ config MACH_XCEP
>        select MTD_CFI_INTELEXT
>        select MTD_CFI
>        select MTD_CHAR
> -       select SMC91X
> +       select SMC91X if NET_ETHERNET

Or let's just remove this 'select SMC91X' completely as it's not
strictly required?

BTW - how's the Kconfig cleanup works going? I guess going forward,
the best way for such cases might be to introduce HAVE_SMC91X, and
let SMC91X to depend on this? However, that could in turn introduce
a massive number of HAVE_* for various drivers.

>        help
>          PXA255 based Single Board Computer with SMC 91C111 ethernet chip and 64 MB of flash.
>          Tuned for usage in Libera instruments for particle accelerators.
> --
> 1.7.5.4
>
>
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