linux-kernel - Re: kdbus: add header file

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Date:	Fri, 31 Oct 2014 11:03:34 +0100
From:	Daniel Mack <daniel@...que.org>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Tom Gundersen <teg@...m.no>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux API <linux-api@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	John Stultz <john.stultz@...aro.org>,
	Tejun Heo <tj@...nel.org>,
	Marcel Holtmann <marcel@...tmann.org>,
	Ryan Lortie <desrt@...rt.ca>,
	Bastien Nocera <hadess@...ess.net>,
	David Herrmann <dh.herrmann@...il.com>,
	Djalal Harouni <tixxdz@...ndz.org>,
	Simon McVittie <simon.mcvittie@...labora.co.uk>,
	"alban.crequy" <alban.crequy@...labora.co.uk>,
	"javier.martinez" <javier.martinez@...labora.co.uk>
Subject: Re: kdbus: add header file

On 10/30/2014 01:03 PM, Arnd Bergmann wrote:
> On Thursday 30 October 2014 12:52:58 Daniel Mack wrote:

>> Hmm, this is the header exported to userspace, so having enums in would
>> make our lives easier, right?
> 
> My point was that you never use the enum by type and the only place in
> user space where it's referenced would be something like
> 
> 	ret = ioctl(fd, KDBUS_CMD_BUS_MAKE, &make);
> 
> In the debugger, you will see the source line here. If you trace into the
> glibc ioctl function, you no longer know the type because that just
> has an 'int'.

Alright - I changed that to #defines now.


Thanks,
Daniel

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