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From: "Yang, Yi" <yi.y.yang@intel•com>
To: Eric Garver <e@erig•me>
Cc: "dev@openvswitch•org" <dev@openvswitch•org>,
	"netdev@vger•kernel.org" <netdev@vger•kernel.org>,
	"jbenc@redhat•com" <jbenc@redhat•com>,
	"davem@davemloft•net" <davem@davemloft•net>
Subject: Re: [ovs-dev] [PATCH net-next v9] openvswitch: enable NSH support
Date: Wed, 27 Sep 2017 09:09:07 +0800	[thread overview]
Message-ID: <20170927010906.GB97665@cran64.bj.intel.com> (raw)
In-Reply-To: <20170926205936.GE1786@dev-rhel7>

On Wed, Sep 27, 2017 at 04:59:36AM +0800, Eric Garver wrote:
> On Tue, Sep 26, 2017 at 01:02:15PM +0800, Yang, Yi wrote:
> > On Tue, Sep 26, 2017 at 03:28:42AM +0800, Eric Garver wrote:
> > > On Mon, Sep 25, 2017 at 10:16:09PM +0800, Yi Yang wrote:
> > > > +
> > > > +	length = nsh_hdr_len(nsh_hdr);
> > > > +	skb_pull(skb, length);
> > > 
> > > Do you need to verify you can actually pull length bytes? I don't see
> > > any guarantee.
> > 
> > I have added skb length check in pop_nsh, so that can verify this.
> 
> That doesn't help other code that may call skb_pop_nsh(). skb_vlan_pop()
> calls skb_ensure_writable() which seems like the right thing to do.

Make sense, I will move it to skp_pop_nsh, thanks.

      reply	other threads:[~2017-09-27  1:24 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-25 14:16 [PATCH net-next v9] openvswitch: enable NSH support Yi Yang
2017-09-25 18:14 ` Jiri Benc
2017-09-26  4:55   ` Yang, Yi
2017-09-26 10:49     ` Jiri Benc
2017-09-27  1:39       ` Yang, Yi
2017-09-28 18:28         ` Pravin Shelar
2017-09-29  6:40           ` Yang, Yi
2017-09-29  7:10             ` Jan Scheurich
     [not found]               ` <CFF8EF42F1132E4CBE2BF0AB6C21C58D7881A337-hqolJogE5njKJFWPz4pdheaU1rCVNFv4@public.gmane.org>
2017-09-29  7:15                 ` Yang, Yi
     [not found]                   ` <20170929071553.GA19053-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-09-29  7:27                     ` Jan Scheurich
2017-09-25 19:28 ` [ovs-dev] " Eric Garver
2017-09-26  5:02   ` Yang, Yi
2017-09-26 20:59     ` Eric Garver
2017-09-27  1:09       ` Yang, Yi [this message]

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