linux-kernel - Re: [PATCH v4 7/8] debugfs: allow access to signed values

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Message-Id: <200712201347.15022.ARNDB@de.ibm.com>
Date:	Thu, 20 Dec 2007 13:47:13 +0100
From:	Arnd Bergmann <ARNDB@...ibm.com>
To:	Stefano Brivio <stefano.brivio@...imi.it>
Cc:	Johannes Berg <johannes@...solutions.net>,
	Akinobu Mita <akinobu.mita@...il.com>,
	"John W. Linville" <linville@...driver.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Mattias Nissler <mattias.nissler@....de>,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
	hch@....de
Subject: Re: [PATCH v4 7/8] debugfs: allow access to signed values

On Thursday 20 December 2007, Stefano Brivio wrote:
> debugfs: allow access to signed values
> 
> Add debugfs_create_s{8,16,32,64}. For these to work properly, we need to remove
> a cast in libfs, change the simple_attr_open prototype and thus fix the users as
> well.
> 
> Cc: Johannes Berg <johannes@...solutions.net>
> Cc: Mattias Nissler <mattias.nissler@....de>
> To: Greg Kroah-Hartman <gregkh@...e.de>
> To: Arnd Bergmann <arndb@...ibm.com>
> To: Akinobu Mita <akinobu.mita@...il.com>
> Signed-off-by: Stefano Brivio <stefano.brivio@...imi.it>

Have you checked that spufs still builds? I would guess that you need
to do the same interface changes there.

Also, Christoph has recently posted a suggestion for how to improve
the interface to allow the 'get' operation to return an error:
http://patchwork.ozlabs.org/cbe-oss-dev/patch?id=14962

I'd suggest consolidating the two changes in order to avoid merge
conflicts.

	Arnd <><
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