linux-kernel - Re: Kconfig warnings on latest GIT

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Message-ID: <Pine.LNX.4.64.0705102046400.10555@gate.crashing.org>
Date:	Thu, 10 May 2007 20:47:05 -0500 (CDT)
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Simon Horman <horms@...ge.net.au>
cc:	Timur Tabi <timur@...escale.com>,
	Kim Phillips <kim.phillips@...escale.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Ismail Dönmez <ismail@...dus.org.tr>,
	Michael Schmitz <schmitz@...ian.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Johannes Berg <johannes@...solutions.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: Kconfig warnings on latest GIT

On Fri, 11 May 2007, Simon Horman wrote:

> On Thu, May 10, 2007 at 11:56:48AM -0500, Timur Tabi wrote:
> > Simon Horman wrote:
> >
> > >>So my question is: in which Kconfig do I define "UCC_FAST_TEMP" and
> > >>"UCC_SLOW_TEMP"?  At first I thought, just put it in drivers/Kconfig, but
> > >>that Kconfig does nothing but including other Kconfigs.  I believe that if I
> > >>submit a patch that adds "UCC_FAST_TEMP" and "UCC_SLOW_TEMP" to
> > >>drivers/Kconfig, it will be rejected.  Either that, or I'll spend six weeks
> > >>trying to persuade everyone that it's a good idea.
> > >>
> > >>Does anyone have any suggestions on how I can fix this?
> > >That does seem like a reasonable suggestion, and one that
> > >would probably work well with the other similar problems
> > >that have been introduced sice 2.6.21.
> >
> > Looks like the fix is simpler than I thought.  Instead of having
> >
> > UCC_GETH
> > 	select UCC_FAST
> >
> > I need to do
> >
> > UCC_FAST
> > 	default y if UCC_GETH
>
> I pondered something like that, but I couldn't get it quite right :(
>
> > I'll have a patch that fixes this out later today.
> >
> > I chose the first method because I wanted each individual UCC device
> > driver to select UCC_FAST or UCC_SLOW as appropriate, so that I
> > wouldn't have to update arch/powerpc/sysdev/qe_lib/Kconfig every time
> > we add a new UCC driver.  Oh well.
>
> --
> Horms
>   H: http://www.vergenet.net/~horms/
>   W: http://www.valinux.co.jp/en/
>

Try this patch:

diff --git a/arch/powerpc/sysdev/qe_lib/Kconfig b/arch/powerpc/sysdev/qe_lib/Kconfig
index 887739f..5de7aba 100644
--- a/arch/powerpc/sysdev/qe_lib/Kconfig
+++ b/arch/powerpc/sysdev/qe_lib/Kconfig
@@ -12,6 +12,7 @@ config UCC_SLOW

 config UCC_FAST
 	bool
+	default y if UCC_GETH
 	default n
 	select UCC
 	help
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index fa489b1..b159c6c 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2276,7 +2276,6 @@ config GFAR_NAPI
 config UCC_GETH
 	tristate "Freescale QE Gigabit Ethernet"
 	depends on QUICC_ENGINE
-	select UCC_FAST
 	help
 	  This driver supports the Gigabit Ethernet mode of the QUICC Engine,
 	  which is available on some Freescale SOCs.
-
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