linux-kernel - Re: [PATCH v9 net-next 2/4] net: filter: split filter.h and expose eBPF to user space

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Message-ID: <CAMEtUuz6zraph_8xXW43bNbh5uPRki0yOufMfV5pKMRLhDrQQA@mail.gmail.com>
Date:	Wed, 3 Sep 2014 22:41:48 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Lutomirski <luto@...capital.net>,
	Steven Rostedt <rostedt@...dmis.org>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	Chema Gonzalez <chema@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>,
	Linux API <linux-api@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Daniel Borkmann <dborkman@...hat.com>
Subject: Re: [PATCH v9 net-next 2/4] net: filter: split filter.h and expose
 eBPF to user space

On Wed, Sep 3, 2014 at 8:46 AM, Daniel Borkmann <dborkman@...hat.com> wrote:
> On 09/03/2014 05:17 AM, Alexei Starovoitov wrote:
>>
>> allow user space to generate eBPF programs
>>
>> uapi/linux/bpf.h: eBPF instruction set definition
>>
>> linux/filter.h: the rest
>>
>> This patch only moves macro definitions, but practically it freezes
>> existing
>> eBPF instruction set, though new instructions can still be added in the
>> future.
>>
>> These eBPF definitions cannot go into uapi/linux/filter.h, since the names
>> may conflict with existing applications.
>>
>> Full eBPF ISA description is in Documentation/networking/filter.txt
>>
>> Signed-off-by: Alexei Starovoitov <ast@...mgrid.com>
>
>
> Ok, given you post the remaining two RFCs later on this window as
> you indicate, I have no objections:
>
> Acked-by: Daniel Borkmann <dborkman@...hat.com>

David,

I see that all 4 patches are marked as rfc, whereas I tagged
only 3 and 4 as 'rfc' and mentioned in cover letter that they
will be coming for real in stage III. Here they support patch 2
and show the future changes to bpf.h file.
Patches 1 and 2 are good to go.
Note that they're on top of Hannes's patch:
http://patchwork.ozlabs.org/patch/385266/
Do you want me to resubmit just first two?

Thanks
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