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Date:   Tue, 18 Aug 2020 18:42:43 -0700
From:   Alexei Starovoitov <ast@...com>
To:     Andrii Nakryiko <andriin@...com>, <bpf@...r.kernel.org>,
        <netdev@...r.kernel.org>, <daniel@...earbox.net>
CC:     <andrii.nakryiko@...il.com>, <kernel-team@...com>
Subject: Re: [PATCH v3 bpf-next 0/4] libbpf: minimize feature detection
 (reallocarray, libelf-mmap)

On 8/18/20 6:36 PM, Andrii Nakryiko wrote:
> Get rid of two feature detectors: reallocarray and libelf-mmap. Optional
> feature detections complicate libbpf Makefile and cause more troubles for
> various applications that want to integrate libbpf as part of their build.
> 
> Patch #1 replaces all reallocarray() uses into libbpf-internal reallocarray()
> implementation. Patches #2 and #3 makes sure we won't re-introduce
> reallocarray() accidentally. Patch #2 also removes last use of
> libbpf_internal.h header inside bpftool. There is still nlattr.h that's used
> by both libbpf and bpftool, but that's left for a follow up patch to split.
> Patch #4 removed libelf-mmap feature detector and all its uses, as it's
> trivial to handle missing mmap support in libbpf, the way objtool has been
> doing it for a while.
> 
> v1->v2 and v2->v3:
>    - rebase to latest bpf-next (Alexei).

Applied. Thanks

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