netdev - Re: [Potential Spoof] [PATCH bpf-next 2/2] selftests/bpf: remove obsolete pahole/BTF support detection

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Date:   Fri, 11 Oct 2019 16:21:21 +0000
From:   Martin Lau <kafai@...com>
To:     Andrii Nakryiko <andriin@...com>
CC:     "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...com>,
        "daniel@...earbox.net" <daniel@...earbox.net>,
        "andrii.nakryiko@...il.com" <andrii.nakryiko@...il.com>,
        Kernel Team <Kernel-team@...com>
Subject: Re: [Potential Spoof] [PATCH bpf-next 2/2] selftests/bpf: remove
 obsolete pahole/BTF support detection

On Thu, Oct 10, 2019 at 08:13:18PM -0700, Andrii Nakryiko wrote:
> Given lots of selftests won't work without recent enough Clang/LLVM that
> fully supports BTF, there is no point in maintaining outdated BTF
> support detection and fall-back to pahole logic. Just assume we have
> everything we need.
May be an error message to tell which llvm is needed?

$(CPU) and $(PROBE) are no longer needed also?