linux-kernel - Re: [PATCH] [TRIVIAL] 8250_hp300: Fix warning typo 'CONFIG

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Date:	Tue, 08 Nov 2011 10:34:47 +0100
From:	Paul Bolle <pebolle@...cali.nl>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-m68k@...ts.linux-m68k.org, Alan Cox <alan@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: Re: [PATCH] [TRIVIAL] 8250_hp300: Fix warning typo 'CONFIG_8250'

On Tue, 2011-11-08 at 10:26 +0100, Jiri Kosina wrote:
> On Mon, 7 Nov 2011, Paul Bolle wrote:
> > 1) If SERIAL_8250_HP300 is set but neither HPDCA nor HPAPCI are set we
> > end up with an elaborate nop, don't we? Initialization should always
> > fail in that case. So effectively SERIAL_8250_HP300 depends on HPDCA
> > and/or HPAPCI. Was there perhaps some problem in translating that
> > dependency into a Kconfig dependency?

[...]

> > --- a/drivers/tty/serial/8250_hp300.c
> > +++ b/drivers/tty/serial/8250_hp300.c
> > @@ -21,7 +21,7 @@
> >  #include "8250.h"
> >  
> >  #if !defined(CONFIG_HPDCA) && !defined(CONFIG_HPAPCI)
> > -#warning CONFIG_8250 defined but neither CONFIG_HPDCA nor CONFIG_HPAPCI defined, are you sure?
> > +#warning CONFIG_SERIAL_8250 defined but neither CONFIG_HPDCA nor CONFIG_HPAPCI defined, are you sure?
> >  #endif
> 
> What is the point of this warning anyway? Shouldn't everything necessary 
> be taken care of by Kconfig rules?

That's exactly what I'm trying to find out with my questions (aimed at
the m68k people, see 1) above).


Paul Bolle

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