netdev - Re: [PATCH net-next] ip: initialize hash list

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Date:	Mon, 22 Jul 2013 07:52:45 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Joe Perches <joe@...ches.com>
Cc:	Pravin B Shelar <pshelar@...ira.com>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] ip: initialize hash list

On Sat, 20 Jul 2013 10:46:20 -0700
Joe Perches <joe@...ches.com> wrote:

> On Sat, 2013-07-20 at 10:26 -0700, Stephen Hemminger wrote:
> > Rather than relying on the assumption that zero means empty on
> > hash list head, the code should use the initialization macro.
> > Same effect, but follows API and avoids future breakage if hlist
> > implementation changes.
> []
> > --- a/net/ipv4/ip_tunnel.c	2013-07-19 09:12:37.213529343 -0700
> []
> > -	itn->tunnels = kzalloc(IP_TNL_HASH_SIZE * sizeof(struct hlist_head), GFP_KERNEL);
> > +	itn->tunnels = kmalloc(IP_TNL_HASH_SIZE * sizeof(struct hlist_head),
> > +			       GFP_KERNEL);
> >  	if (!itn->tunnels)
> >  		return -ENOMEM;
> > +
> > +	for (i = 0; i < IP_TNL_HASH_SIZE; i++)
> > +		INIT_HLIST_HEAD(&itn->tunnels[i]);
> 
> Hey Stephen.
> 
> Are you doing to do just this one or submit a series?

Hadn't planned on fixing more than one. And would not go outside code
that I actually use.
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