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Message-ID: <CAJieiUgvHmXDmY3rvVj4u_1r=m0kOfDE_HYYYkY+Z73K9ZbwKw@mail.gmail.com>
Date:   Wed, 27 Sep 2017 09:20:07 -0700
From:   Roopa Prabhu <roopa@...ulusnetworks.com>
To:     Amine Kherbouche <amine.kherbouche@...nd.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>, xeb@...l.ru,
        David Lamparter <equinox@...c24.net>
Subject: Re: [PATCH v3 1/1] ip_tunnel: add mpls over gre encapsulation

On Wed, Sep 27, 2017 at 9:08 AM, Amine Kherbouche
<amine.kherbouche@...nd.com> wrote:
>
>
> On 09/27/2017 05:36 PM, Roopa Prabhu wrote:
>>
>> Amine, one small nit here.., if you define mpls_gre_rcv in gre header
>> (like you had initially), you could do the below...
>>
>> #if IS_ENABLED(CONFIG_MPLS)
>> mpls_gre_rcv()
>> {
>>      /* real func */
>> }
>> #else
>> mpls_gre_rcv()
>> {
>>     kfree_skb(skb)
>>     return NET_RX_DROP
>> }
>> #endif
>>
>> and the check in gre_rcv() reduces to
>>
>> if (unlikely(tpi.proto == htons(ETH_P_MPLS_UC)))
>>         return mpls_gre_rcv(skb, hdr_len);
>>
>> Which looks much cleaner.
>
>
> If I do that, do I have to add back the patch that export mpls_forward() or
> just merge it with this one ?

I think its better to bring the patch back in.

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