linux-kernel - Re: [PATCH 5/7] rapidio: add modular build option for the subsystem core

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Message-ID: <1374836454.4361.2.camel@chaos.site>
Date:	Fri, 26 Jul 2013 13:00:54 +0200
From:	Jean Delvare <jdelvare@...e.de>
To:	Alexandre Bounine <alexandre.bounine@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Matt Porter <mporter@...nel.crashing.org>,
	Li Yang <leoli@...escale.com>,
	Kumar Gala <galak@...nel.crashing.org>,
	Andre van Herk <andre.van.herk@...drive.nl>,
	Micha Nelissen <micha.nelissen@...drive.nl>,
	Stef van Os <stef.van.os@...drive.nl>
Subject: Re: [PATCH 5/7] rapidio: add modular build option for the
 subsystem core

Hi Alexandre,

Le Friday 28 June 2013 à 15:18 -0400, Alexandre Bounine a écrit :
> Add a configuration option to build RapidIO subsystem core code as a loadable
> kernel module. Currently this option is available only for x86-based platforms,
> with the additional patch for PowerPC planned to be provided later.
> 
> This patch replaces kernel command line parameter "riohdid=" with its
> module-specific analog "rapidio.hdid=".  
> 
> Signed-off-by: Alexandre Bounine <alexandre.bounine@....com>
> Cc: Matt Porter <mporter@...nel.crashing.org>
> Cc: Li Yang <leoli@...escale.com>
> Cc: Kumar Gala <galak@...nel.crashing.org>
> Cc: Andre van Herk <andre.van.herk@...drive.nl>
> Cc: Micha Nelissen <micha.nelissen@...drive.nl>
> Cc: Stef van Os <stef.van.os@...drive.nl>
> Cc: Jean Delvare <jdelvare@...e.de>
> ---
>  arch/x86/Kconfig         |    4 ++--
>  drivers/rapidio/Makefile |    4 +++-
>  drivers/rapidio/rio.c    |   27 ++++++++++++++-------------
>  3 files changed, 19 insertions(+), 16 deletions(-)
> 
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index fe120da..583ac42 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -2246,11 +2246,11 @@ source "drivers/pcmcia/Kconfig"
>  source "drivers/pci/hotplug/Kconfig"
>  
>  config RAPIDIO
> -	bool "RapidIO support"
> +	tristate "RapidIO support"

Is there a reason why this was only done for x86 and not for mips and
powerpc?

>  	depends on PCI
>  	default n
>  	help
> -	  If you say Y here, the kernel will include drivers and
> +	  If enabled this option will include drivers and the core
>  	  infrastructure code to support RapidIO interconnect devices.
>  

-- 
Jean Delvare
Suse L3

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