netdev - Re: [PATCH v7 3/8] thunderbolt: Kconfig for Thunderbolt Networking

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Date:   Tue, 27 Sep 2016 16:00:44 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Amir Levy <amir.jer.levy@...el.com>
Cc:     andreas.noever@...il.com, bhelgaas@...gle.com, corbet@....net,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        netdev@...r.kernel.org, linux-doc@...r.kernel.org,
        mario_limonciello@...l.com, thunderbolt-linux@...el.com,
        mika.westerberg@...el.com, tomas.winkler@...el.com,
        xiong.y.zhang@...el.com
Subject: Re: [PATCH v7 3/8] thunderbolt: Kconfig for Thunderbolt Networking

On Tue, Sep 27, 2016 at 04:43:36PM +0300, Amir Levy wrote:
> Update to the Kconfig Thunderbolt description to add
> Thunderbolt networking as an option.
> The menu item "Thunderbolt support" now offers:
> "Apple Hardware Support" (existing)
>         and/or
> "Thunderbolt Networking" (new)
> 
> You can choose the driver for your platform or build both drivers -
> each driver will detect if it can run on the specific platform.
> If the Thunderbolt Networking option is chosen, Thunderbolt Networking
> will be enabled between Linux non-Apple systems, macOS and
> Windows based systems.
> Thunderbolt Networking will not affect any other Thunderbolt feature that
> was previous available to Linux users on either Apple or
> non-Apple platforms.
> 
> Signed-off-by: Amir Levy <amir.jer.levy@...el.com>
> ---
>  drivers/thunderbolt/Kconfig  | 27 +++++++++++++++++++++++----
>  drivers/thunderbolt/Makefile |  2 +-
>  2 files changed, 24 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/thunderbolt/Kconfig b/drivers/thunderbolt/Kconfig
> index c121acc..376e5bb 100644
> --- a/drivers/thunderbolt/Kconfig
> +++ b/drivers/thunderbolt/Kconfig
> @@ -1,13 +1,32 @@
> -menuconfig THUNDERBOLT
> -	tristate "Thunderbolt support for Apple devices"
> +config THUNDERBOLT
> +	tristate "Thunderbolt support"
>  	depends on PCI
>  	select CRC32
>  	help
> -	  Cactus Ridge Thunderbolt Controller driver
> +	  Thunderbolt Controller driver
> +
> +if THUNDERBOLT
> +
> +config THUNDERBOLT_APPLE
> +	tristate "Apple hardware support"
> +	help
>  	  This driver is required if you want to hotplug Thunderbolt devices on
>  	  Apple hardware.
>  
>  	  Device chaining is currently not supported.
>  
> -	  To compile this driver a module, choose M here. The module will be
> +	  To compile this driver as a module, choose M here. The module will be
>  	  called thunderbolt.
> +
> +config THUNDERBOLT_ICM

You are adding a config option here that is not used in the tree yet.
Please wait until you need the option to actually add it :)

You might just want to do the APPLE stuff here, that way you can drop in
the networking stuff in a simple patch at the end of this series.

thanks,

greg k-h