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From: Sam Ravnborg <>
To: Chuck Lever <>
Subject: Re: [PATCH 07/11] NFSD: Use "depends on" for PROC_FS dependency
Date: Fri, 8 Feb 2008 21:22:19 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Fri, Feb 08, 2008 at 12:52:15PM -0500, Chuck Lever wrote:
> Recently a reverse dependency was added to fs/Kconfig to ensure that
> PROC_FS was enabled if NFSD_V4 was enabled.
> There is a guideline in Documentation/kbuild/kconfig-language.txt that
> states "In general use select only for non-visible symbols (no prompts
> anywhere) and for symbols with no dependencies."
> A quick grep around other Kconfig files reveals that no entry currently
> uses "select PROC_FS" -- every one uses "depends on".  Thus CONFIG_NFSD_V4
> should use "depends on PROC_FS" as well.
> For SUNRPC_GSS, it's a little more complex.  Other entries can "select"
> SUNRPC_GSS, as it is non-visible.  However, the guideline suggests an
> entry can't "select" it if it has a dependency (such as PROC_FS).
> So, we add forward dependencies on PROC_FS to RPCSEC_GSS_FOO instead.
> XXX: Both CONFIG_NFSV4 and CONFIG_NFSD_V4 select RPCSEC_GSS_KRB5, which is
> visible, which kconfig-language.txt also frowns upon.  The intent was to
> enable at least one GSS mechanism if V4 was enabled.  Perhaps we should
> make SUNRPC_GSS visible, and make the NFSv4 options visible only if
> SUNRPC_GSS is enabled.

This is better than what we had - so OK.
We can revisit when kconfig gets more features added to support
such configurations.


      reply	other threads:[~2008-02-08 20:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-08 17:52 Chuck Lever
2008-02-08 20:22 ` Sam Ravnborg [this message]

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