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    SubjectRe: [PATCH bpf-next v3 12/14] bpf: Pull tools/build/feature biz into selftests Makefile
    On Thu, Dec 3, 2020 at 8:07 AM Brendan Jackman <jackmanb@google.com> wrote:
    >
    > This is somewhat cargo-culted from the libbpf build. It will be used
    > in a subsequent patch to query for Clang BPF atomics support.
    >
    > Change-Id: I9318a1702170eb752acced35acbb33f45126c44c

    Haven't seen this before. What's this Change-Id business?

    > Signed-off-by: Brendan Jackman <jackmanb@google.com>
    > ---
    > tools/testing/selftests/bpf/.gitignore | 1 +
    > tools/testing/selftests/bpf/Makefile | 38 ++++++++++++++++++++++++++
    > 2 files changed, 39 insertions(+)

    All this just to detect the support for clang atomics?... Let's not
    pull in the entire feature-detection framework unnecessarily,
    selftests Makefile is complicated enough without that.

    [...]

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