netdev - Re: [PATCH v3 bpf-next 3/3] libbpf: auto-generate list of BPF helper definitions

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Date:   Sun, 6 Oct 2019 19:24:23 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Andrii Nakryiko <andriin@...com>, bpf <bpf@...r.kernel.org>,
        Network Development <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Quentin Monnet <quentin.monnet@...ronome.com>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH v3 bpf-next 3/3] libbpf: auto-generate list of BPF helper definitions

On Sun, Oct 6, 2019 at 5:32 PM Alexei Starovoitov
<alexei.starovoitov@...il.com> wrote:
>
> On Sun, Oct 6, 2019 at 5:13 PM Andrii Nakryiko
> <andrii.nakryiko@...il.com> wrote:
> >
> > On Sun, Oct 6, 2019 at 4:56 PM Alexei Starovoitov
> > <alexei.starovoitov@...il.com> wrote:
> > >
> > > On Sat, Oct 5, 2019 at 10:46 PM Andrii Nakryiko <andriin@...com> wrote:
> > > >
> > > > Get rid of list of BPF helpers in bpf_helpers.h (irony...) and
> > > > auto-generate it into bpf_helpers_defs.h, which is now included from
> > > > bpf_helpers.h.
> > > >
> > > > Suggested-by: Alexei Starovoitov <ast@...com>
> > > > Signed-off-by: Andrii Nakryiko <andriin@...com>
> > > > ---
> > > >  tools/lib/bpf/.gitignore    |   1 +
> > > >  tools/lib/bpf/Makefile      |  10 +-
> > > >  tools/lib/bpf/bpf_helpers.h | 264 +-----------------------------------
> > > >  3 files changed, 10 insertions(+), 265 deletions(-)
> > >
> > > This patch doesn't apply to bpf-next.
> >
> > Yes, it has to be applied on top of bpf_helpers.h move patch set. I
> > can bundle them together and re-submit as one patch set, but I don't
> > think there were any remaining issues besides the one solved in this
> > patch set (independence from any specific bpf.h UAPI), so that one can
> > be applied as is.
>
> It looks to me that auto-gen of bpf helpers set is ready,
> whereas move is till being debated.
> I also would like to test autogen-ed .h in my environment first
> before we move things around.

Alright, will post v4 based on master with bpf_helpers.h still in selftests/bpf