netdev - Re: [NET]: Get rid of NETIF_F_INTERNAL

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Date:	Wed, 11 Apr 2007 22:15:51 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Jeff Garzik <jgarzik@...ox.com>
Subject: Re: [NET]: Get rid of NETIF_F_INTERNAL_STATS

On Wed, 2007-04-11 at 17:56 +1000, Herbert Xu wrote:
> Hi:
> 
> [NET]: Get rid of NETIF_F_INTERNAL_STATS
> 
> The recently added NETIF_F_INTERNAL_STATS isn't very useful.  If the
> device driver needs to set it then it can always override get_stats
> instead.  All existing drivers that have stats (which should be every
> one) will override get_stats anyway.  Those that don't have stats
> (if there are any) wouldn't hurt from having a get_stats that just
> returns zeros everywhere.

Actually, I did this precisely because I really didn't want to start
exposing bogus stats in /proc/net/dev.  An audit might clarify if this
is an actual issue.

> So we can simply get rid of this flag.
> 
> This also fixes a potential crash in those get_stats callers that
> don't check for a NULL return value (e.g., /proc/net/dev).

Hmm, I thought it did that in my original patch?

Rusty.


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