netdev - Re: [PATCH v2 net-next 1/5] bpf: Refactor cgroups code in prep for new type

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Date:   Mon, 31 Oct 2016 11:05:04 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Daniel Mack <daniel@...que.org>, David Miller <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, ast@...com, daniel@...earbox.net,
        maheshb@...gle.com, tgraf@...g.ch
Subject: Re: [PATCH v2 net-next 1/5] bpf: Refactor cgroups code in prep for
 new type

On 10/31/16 11:00 AM, Daniel Mack wrote:
> On 10/31/2016 05:58 PM, David Miller wrote:
>> From: David Ahern <dsa@...ulusnetworks.com>
>> Date: Wed, 26 Oct 2016 17:58:38 -0700
>>
>>> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
>>> index 6b62ee9a2f78..73da296c2125 100644
>>> --- a/include/uapi/linux/bpf.h
>>> +++ b/include/uapi/linux/bpf.h
>>> @@ -98,7 +98,7 @@ enum bpf_prog_type {
>>>  	BPF_PROG_TYPE_TRACEPOINT,
>>>  	BPF_PROG_TYPE_XDP,
>>>  	BPF_PROG_TYPE_PERF_EVENT,
>>> -	BPF_PROG_TYPE_CGROUP_SKB,
>>> +	BPF_PROG_TYPE_CGROUP,
>>>  };
>>>  
>>>  enum bpf_attach_type {
>>
>> If we do this then the cgroup-bpf series should use this value rather than
>> changing it after-the-fact in your series here.
>>
> 
> Yeah, I'm confused too. I changed that name in my v7 from
> BPF_PROG_TYPE_CGROUP_SOCK to BPF_PROG_TYPE_CGROUP_SKB on David's (Ahern)
> request. Why is it now renamed again?

Thomas pushed back on adding another program type in favor of using subtypes. So this makes the program type generic to CGROUP and patch 2 in this v2 set added Mickaël's subtype patch with the socket mangling done that way in patch 3.