netdev - Re: [PATCH 5/7] CAN: Add virtual CAN netdevice driver

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Date:	Tue, 2 Oct 2007 14:52:36 -0700
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	Oliver Hartkopp <oliver@...tkopp.net>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Urs Thuermann <urs@...ogud.escape.de>, netdev@...r.kernel.org,
	David Miller <davem@...emloft.net>,
	Patrick McHardy <kaber@...sh.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Oliver Hartkopp <oliver@...tkopp.net>,
	Oliver Hartkopp <oliver.hartkopp@...kswagen.de>,
	Urs Thuermann <urs.thuermann@...kswagen.de>
Subject: Re: [PATCH 5/7] CAN: Add virtual CAN netdevice driver

On Tue, 02 Oct 2007 23:02:53 +0200
Oliver Hartkopp <oliver@...tkopp.net> wrote:

> Arnaldo Carvalho de Melo wrote:
> > Em Tue, Oct 02, 2007 at 03:10:11PM +0200, Urs Thuermann escreveu:
> >   
> >> +
> >> +#ifdef CONFIG_CAN_DEBUG_DEVICES
> >> +static int debug;
> >> +module_param(debug, int, S_IRUGO);
> >> +#endif
> >>     
> >
> > Can debug be a boolean? Like its counterpart on DCCP:
> >
> > net/dccp/proto.c:
> >
> > module_param(dccp_debug, bool, 0444);
> >   
> 
> 'debug' should remain an integer to be able to specifiy debug-levels or 
> bit-fields for different Debug outputs.
> 
> > Where we also use a namespace prefix, for those of us who use ctags or
> > cscope.
> >   
> 
> Even if i don't have any general objections to rename this 'debug' to 
> 'vcan_debug', it looks like an 'overnamed' module parameter for me. Is 
> this a genereal naming scheme recommendation for debug module_params?
> 

Please consider using netif_msg_xxx() and module parameter to set
default message level, like other real network drivers already do.

-- 
Stephen Hemminger <shemminger@...ux-foundation.org>
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