linux-kernel - Re: [PATCH] Make lguest compile with CONFIG_BLOCK=n and CONFIG

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Date:	Mon, 30 Jul 2007 06:18:56 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Rusty Russell" <rusty@...tcorp.com.au>
Cc:	"Gabriel C" <nix.or.die@...glemail.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	virtualization@...ts.osdl.org
Subject: Re: [PATCH] Make lguest compile with CONFIG_BLOCK=n and CONFIG_NET=n

On 7/30/07, Rusty Russell <rusty@...tcorp.com.au> wrote:
> [...]
> Gabriel C reports lguest doesn't compile with CONFIG_BLOCK=n.  Fix
> this by introducing a config var for the block device, which depends
> on LGUEST && BLOCK.  Do the same for the net driver, rather then
> depending gratuitously on CONFIG_NET.
> [...]
> diff -r 9e987fcabb16 drivers/lguest/Kconfig
> --- a/drivers/lguest/Kconfig    Mon Jul 30 09:47:25 2007 +1000
> +++ b/drivers/lguest/Kconfig    Mon Jul 30 10:03:39 2007 +1000
> @@ -1,6 +1,6 @@ config LGUEST
>  config LGUEST
>         tristate "Linux hypervisor example code"
> -       depends on X86 && PARAVIRT && NET && EXPERIMENTAL && !X86_PAE
> +       depends on X86 && PARAVIRT && EXPERIMENTAL && !X86_PAE
>         select LGUEST_GUEST
>         select HVC_DRIVER
>         ---help---
> @@ -18,3 +18,11 @@ config LGUEST_GUEST
>           The guest needs code built-in, even if the host has lguest
>           support as a module.  The drivers are tiny, so we build them
>           in too.
> +
> +config LGUEST_NET
> +       tristate
> +       depends on LGUEST_GUEST && NET

default y ?

> +
> +config LGUEST_BLOCK
> +       tristate
> +       depends on LGUEST_GUEST && BLOCK

default y ?

I /think/ the default "y" would also automatically become "m" if any of the
dependencies are modules ... probably need to test this, though.


Satyam
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