netdev - Re: [PATCH net-next v3 3/3] openvswitch: New MPLS actions for layer 2 tunnelling

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Message-ID: <20191217171539.GA16538@martin-VirtualBox>
Date:   Tue, 17 Dec 2019 22:45:39 +0530
From:   Martin Varghese <martinvarghesenokia@...il.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, pshelar@....org,
        scott.drennan@...ia.com, jbenc@...hat.com,
        martin.varghese@...ia.com
Subject: Re: [PATCH net-next v3 3/3] openvswitch: New MPLS actions for layer
 2 tunnelling

On Mon, Dec 16, 2019 at 04:13:55PM -0800, Jakub Kicinski wrote:
> On Mon, 16 Dec 2019 19:33:43 +0530, Martin Varghese wrote:
> > diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
> > index a87b44c..b7221ad 100644
> > --- a/include/uapi/linux/openvswitch.h
> > +++ b/include/uapi/linux/openvswitch.h
> > @@ -673,6 +673,25 @@ struct ovs_action_push_mpls {
> >  };
> >  
> >  /**
> > + * struct ovs_action_ptap_push_mpls - %OVS_ACTION_ATTR_PTAP_PUSH_MPLS action
> > + * argument.
> > + * @mpls_lse: MPLS label stack entry to push.
> > + * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
> > + * @l2_tun: Flag to specify the place of insertion of MPLS header.
> > + * When true, the MPLS header will be inserted at the start of the packet.
> > + * When false, the MPLS header will be inserted at the start of the l3 header.
> > + *
> > + * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
> > + * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
> > + */
> > +struct ovs_action_ptap_push_mpls {
> > +	__be32 mpls_lse;
> > +	__be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
> > +	bool l2_tun;
> 
> In file included from <command-line>:32:                                        
> ./usr/include/linux/openvswitch.h:674:2: error: unknown type name ‘bool’        
>   674 |  bool l2_tun;                                                           
>       |  ^~~~                                                                   
> make[3]: *** [usr/include/linux/openvswitch.hdrtest] Error 1  
> 

Does that mean bool cannot be used in interface header files ? but what is
the alternative u8?
> > +};
> > +
> > +
> 
> Why the double new line? Please use checkpatch --strict.

Noted

Thanks for your time.