netdev - Re: [Linux-zigbee-devel] [PATCH net-next v9 3/9] net: nl802154

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Message-ID: <20140718081810.GA6555@omega>
Date:	Fri, 18 Jul 2014 10:18:12 +0200
From:	Alexander Aring <alex.aring@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	teg@...m.no, netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-zigbee-devel@...ts.sourceforge.net
Subject: Re: [Linux-zigbee-devel] [PATCH net-next v9 3/9] net: nl802154 -
 make add_iface take name assign type

On Thu, Jul 17, 2014 at 04:19:31PM -0700, David Miller wrote:
> From: Tom Gundersen <teg@...m.no>
> Date: Thu, 17 Jul 2014 10:06:04 +0200
> 
> > @@ -192,8 +193,10 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
> >  		if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1]
> >  				!= '\0')
> >  			return -EINVAL; /* phy name should be null-terminated */
> > +		name_assign_type = NET_NAME_USER;
> >  	} else  {
> >  		devname = "wpan%d";
> > +		name_assign_type = NET_NAME_ENUM;
> >  	}
> >  
> >  	if (strlen(devname) >= IFNAMSIZ)
> 
> Just wondering what should happen if "%d" appears in a user provided name.
> 

I tested it. If I use a name like "foobar%d" then I get a foobar0,
foobar1 ... foobarX.

> That would seem to be both USER and ENUM.
> 

yes.


- Alex
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