netdev - Re: [PATCH v3 bpf-next 0/2] Make bpf_endian.h compatible with vmlinux.h

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Message-ID: <82291181-aa1d-c086-9df9-2a889b7967cc@fb.com>
Date:   Tue, 30 Jun 2020 11:09:07 -0700
From:   Yonghong Song <yhs@...com>
To:     Andrii Nakryiko <andriin@...com>, <bpf@...r.kernel.org>,
        <netdev@...r.kernel.org>, <ast@...com>, <daniel@...earbox.net>
CC:     <andrii.nakryiko@...il.com>, <kernel-team@...com>
Subject: Re: [PATCH v3 bpf-next 0/2] Make bpf_endian.h compatible with
 vmlinux.h



On 6/30/20 8:21 AM, Andrii Nakryiko wrote:
> Change libbpf's bpf_endian.h header to be compatible when used with system
> headers and when using just vmlinux.h. This is a frequent request for users
> writing BPF CO-RE applications. Do this by re-implementing byte swap
> compile-time macros. Also add simple tests validating correct results both for
> byte-swapping built-ins and macros.
> 
> v2->v3:
> - explicit zero-initialization of global variables (Daniel);
> 
> v1->v2:
> - reimplement byte swapping macros (Alexei).
> 
> Andrii Nakryiko (2):
>    libbpf: make bpf_endian co-exist with vmlinux.h
>    selftests/bpf: add byte swapping selftest
> 
>   tools/lib/bpf/bpf_endian.h                    | 43 ++++++++++++---
>   .../testing/selftests/bpf/prog_tests/endian.c | 53 +++++++++++++++++++
>   .../testing/selftests/bpf/progs/test_endian.c | 37 +++++++++++++
>   3 files changed, 125 insertions(+), 8 deletions(-)
>   create mode 100644 tools/testing/selftests/bpf/prog_tests/endian.c
>   create mode 100644 tools/testing/selftests/bpf/progs/test_endian.c
Ack for the series:
Acked-by: Yonghong Song <yhs@...com>