netdev - Re: [PATCH net-next 2/2] bpf: Fix test_obj

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Date:   Fri, 09 Jun 2017 12:06:53 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Martin KaFai Lau <kafai@...com>, netdev@...r.kernel.org
CC:     Alexei Starovoitov <ast@...com>, Yonghong Song <yhs@...com>,
        kernel-team@...com
Subject: Re: [PATCH net-next 2/2] bpf: Fix test_obj_id.c for llvm 5.0

On 06/09/2017 07:30 AM, Martin KaFai Lau wrote:
> llvm 5.0 does not like the section name and the function name
> to be the same:
>
> clang -I. -I./include/uapi -I../../../include/uapi \
> 	-I../../../../samples/bpf/ \
> 	-Wno-compare-distinct-pointer-types \
> 	-O2 -target bpf -c \
> 	linux/tools/testing/selftests/bpf/test_obj_id.c -o \
> 	linux/tools/testing/selftests/bpf/test_obj_id.o
> fatal error: error in backend: 'test_prog_id' label emitted multiple times to
> assembly file
> clang-5.0: error: clang frontend command failed with exit code 70 (use -v to
> see invocation)
> clang version 5.0.0 (trunk 304326) (llvm/trunk 304329)
>
> This patch makes changes to the section name and the function name.
>
> Fixes: 95b9afd3987f ("bpf: Test for bpf ID")
> Reported-by: Alexei Starovoitov <ast@...com>
> Reported-by: Yonghong Song <yhs@...com>
> Signed-off-by: Martin KaFai Lau <kafai@...com>

Acked-by: Daniel Borkmann <daniel@...earbox.net>