netdev - Re: [PATCH net-next 1/9] net/sched: flower: define new tunnel flags

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Date: Wed, 3 Jul 2024 17:20:39 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Alexander Lobakin <aleksander.lobakin@...el.com>
Cc: Asbjørn Sloth Tønnesen
 <ast@...erby.net>, <netdev@...r.kernel.org>, Davide Caratti
 <dcaratti@...hat.com>, "Ilya Maximets" <i.maximets@....org>, Jamal Hadi
 Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko
 <jiri@...nulli.us>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, David Ahern
 <dsahern@...nel.org>, Simon Horman <horms@...nel.org>, Ratheesh Kannoth
 <rkannoth@...vell.com>, Florian Westphal <fw@...len.de>,
 <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 1/9] net/sched: flower: define new tunnel flags

On Wed, 3 Jul 2024 12:59:54 +0200 Alexander Lobakin wrote:
> >  enum {
> >  	TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT = (1 << 0),
> >  	TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST = (1 << 1),
> > +	/* FLOW_DIS_ENCAPSULATION (1 << 2) is not exposed to userspace */  
> 
> Should uAPI header contain this comment? FLOW_DIS_ENCAPSULATION is an
> internal kernel definition, so I believe its name shouldn't leak to the
> userspace header.

Also since it's internal, can avoid the gap in uAPI and make
ENCAPSULATION be something like "last uAPI bit + 1" ?