netdev - Re: [PATCH v3 0/2] bpf: Allow bpf_skb_event

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Message-ID: <C74526B1-7426-4F84-A5D3-DA444A17CFCD@fb.com>
Date:   Tue, 25 Jun 2019 00:00:35 +0000
From:   Song Liu <songliubraving@...com>
To:     allanzhang <allanzhang@...gle.com>
CC:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin Lau <kafai@...com>, Yonghong Song <yhs@...com>,
        "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/2] bpf: Allow bpf_skb_event_output for more prog
 types



> On Jun 24, 2019, at 4:57 PM, allanzhang <allanzhang@...gle.com> wrote:
> 
> Software event output is only enabled by a few prog types right now (TC,
> LWT out, XDP, sockops). Many other skb based prog types need
> bpf_skb_event_output to produce software event.
> 
> Added socket_filter, cg_skb, sk_skb prog types to generate sw event.
> 
> *** BLURB HERE ***
    ^^^^^^ this should be removed. 

Please include bpf-next in the subject prefix. 
Please also include changes from v1 to v2 and v2 to v3 in the cover 
letter, like:

changes v1 => v2:
1. ...
2. ...

Thanks,
Song


> 
> allanzhang (2):
>  bpf: Allow bpf_skb_event_output for a few prog types
>  bpf: Add selftests for bpf_perf_event_output
> 
> net/core/filter.c                             |  6 ++
> tools/testing/selftests/bpf/test_verifier.c   | 33 ++++++-
> .../selftests/bpf/verifier/event_output.c     | 94 +++++++++++++++++++
> 3 files changed, 132 insertions(+), 1 deletion(-)
> create mode 100644 tools/testing/selftests/bpf/verifier/event_output.c
> 
> -- 
> 2.22.0.410.gd8fdbe21b5-goog
>