linux-kernel - Re: usr/include/linux/soundcard.h warnings for 'make headers

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Date:	Wed, 04 Feb 2009 17:01:37 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Arnd Bergmann <arnd@...db.de>, Sam Ravnborg <sam@...nborg.org>,
	alsa-devel@...a-project.org, Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: usr/include/linux/soundcard.h warnings for 'make headers_check'

On Wed, 2009-02-04 at 11:52 +0100, Takashi Iwai wrote:
> At Wed, 04 Feb 2009 16:07:57 +0530,
> Jaswinder Singh Rajput wrote:
> > 
> > In kernel space we use USE_SEQ_MACROS in:
> > sound/oss/mpu401.c
> > sound/oss/midi_synth.c
> > 
> > so we can replace
> > #if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS)
> > with
> > #ifdef USE_SEQ_MACROS
> 
> Then this will break user-space apps.  They don't define
> USE_SEQ_MACROS always.
> 

If userspace apps are coming through sys/soundcard.h we can define
USE_SEQ_MACROS in it 
OR 
define USE_SEQ_MACROS in linux/soundcard.h for userspace 
OR 
need to redefine better #ifdef

Thanks,
--
JSR

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