linux-kernel - Re: [PATCH 3/6] x86: unification of i386 and x86

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Message-Id: <20071025163541.ee081c26.rdunlap@xenotime.net>
Date:	Thu, 25 Oct 2007 16:35:41 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
Cc:	"Sam Ravnborg" <sam@...nborg.org>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-kbuild <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH 3/6] x86: unification of i386 and x86_64 Kconfig.debug

On Thu, 25 Oct 2007 16:30:48 -0700 Yinghai Lu wrote:

> On 10/25/07, Sam Ravnborg <sam@...nborg.org> wrote:
> > From 16b853f53463e43bfce341965ac10a78a3755a14 Mon Sep 17 00:00:00 2001
> > From: Randy Dunlap <rdunlap@...otime.net>
> > Date: Wed, 24 Oct 2007 15:50:43 -0700
> > Subject: [PATCH] x86: unification of i386 and x86_64 Kconfig.debug
> >
> > Adding proper dependencies so the two Kconfig.debug files
> > are now identical.
> >
> > Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
> > Signed-off-by: Sam Ravnborg <sam@...nborg.org>
> > ---
> >  arch/i386/Kconfig.debug             |   51 ++++++++++++++++++++++++++++-------
> >  arch/x86_64/Kconfig                 |    4 ---
> >  arch/{i386 => x86_64}/Kconfig.debug |   51 ++++++++++++++++++++++++++++-------
> >  3 files changed, 82 insertions(+), 24 deletions(-)
> >  copy arch/{i386 => x86_64}/Kconfig.debug (65%)
> >
> > diff --git a/arch/i386/Kconfig.debug b/arch/i386/Kconfig.debug
> > index f03531e..970b2de 100644
> > --- a/arch/i386/Kconfig.debug
> > +++ b/arch/i386/Kconfig.debug
> > @@ -1,14 +1,14 @@
> >  menu "Kernel hacking"
> >
> >  config TRACE_IRQFLAGS_SUPPORT
> > -       bool
> > -       default y
> > +       def_bool y
> >
> >  source "lib/Kconfig.debug"
> >
> >  config EARLY_PRINTK
> >         bool "Early printk" if EMBEDDED && DEBUG_KERNEL
> >         default y
> > +       depends on X86_32
> >         help
> >           Write kernel log output directly into the VGA buffer or to a serial
> >           port.
> > @@ -37,10 +37,12 @@ config DEBUG_STACK_USAGE
> ...
> > diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
> > index 308970a..1bc0268 100644
> > --- a/arch/x86_64/Kconfig
> > +++ b/arch/x86_64/Kconfig
> > @@ -97,10 +97,6 @@ config X86_CMPXCHG
> >         bool
> >         default y
> >
> > -config EARLY_PRINTK
> > -       bool
> > -       default y
> > -
> >  config GENERIC_ISA_DMA
> >         bool
> >         default y
> > diff --git a/arch/i386/Kconfig.debug b/arch/x86_64/Kconfig.debug
> > similarity index 65%
> > copy from arch/i386/Kconfig.debug
> > copy to arch/x86_64/Kconfig.debug
> > index f03531e..970b2de 100644
> > --- a/arch/i386/Kconfig.debug
> > +++ b/arch/x86_64/Kconfig.debug
> > @@ -1,14 +1,14 @@
> >  menu "Kernel hacking"
> >
> >  config TRACE_IRQFLAGS_SUPPORT
> > -       bool
> > -       default y
> > +       def_bool y
> >
> >  source "lib/Kconfig.debug"
> >
> >  config EARLY_PRINTK
> >         bool "Early printk" if EMBEDDED && DEBUG_KERNEL
> >         default y
> > +       depends on X86_32
> >         help
> >           Write kernel log output directly into the VGA buffer or to a serial
> >           port.
> ...
> 
> why disabling early_printk for x86_64?

It doesn't do that.  EARLY_PRINTK for x86_64 lives in
arch/x86_64/Kconfig (i.e., a different file).

Patches welcome.

---
~Randy
-
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