linux-kernel - Re: [patch 31/37] mn10300: Use generic irq Kconfig

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Message-ID: <alpine.LFD.2.00.1103081140580.2787@localhost6.localdomain6>
Date:	Tue, 8 Mar 2011 11:41:42 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	David Howells <dhowells@...hat.com>
Subject: Re: [patch 31/37] mn10300: Use generic irq Kconfig

On Sat, 5 Mar 2011, Sam Ravnborg wrote:

> On Sat, Mar 05, 2011 at 10:02:33PM +0100, Geert Uytterhoeven wrote:
> > On Wed, Jan 19, 2011 at 22:49, Thomas Gleixner <tglx@...utronix.de> wrote:
> > > No functional change.
> > >
> > > Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> > > Cc: David Howells <dhowells@...hat.com>
> > > ---
> > >  arch/mn10300/Kconfig |    5 +----
> > >  1 file changed, 1 insertion(+), 4 deletions(-)
> > >
> > > Index: linux-2.6/arch/mn10300/Kconfig
> > > ===================================================================
> > > --- linux-2.6.orig/arch/mn10300/Kconfig
> > > +++ linux-2.6/arch/mn10300/Kconfig
> > > @@ -1,6 +1,7 @@
> > >  config MN10300
> > >        def_bool y
> > >        select HAVE_OPROFILE
> > > +       select GENERIC_HARDIRQS
> > 
> > Wasn't this supposed to be "select HAVE_GENERIC_HARDIRQS"?

Crap, yes.

> > /me studying generic hardirqs...
> 
> One could hope this was nicely documented in kernel/irq/Kconfig.
> But that file contains only 9 lines of comments for 10 config symbols.
> 
> Maybe it is just me but I was struggeling understanding the purpose
> of these config symbols.
> 
> I found the individual bits of genirq nicely documented in most cases.
> But the overall picture was/is hard to get.
> 
> And I never got enough understanding to write up something myself :-(

Point taken. /me goes and adds comments :)

      tglx