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libbpf: Put Kconfig externs into .kconfig section

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Move Kconfig-provided externs into custom .kconfig section. Add __kconfig into
bpf_helpers.h for user convenience. Update selftests accordingly.

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191219002837.3074619-2-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2019-12-18 16:28:34 -08:00 • committed by Alexei Starovoitov
parent d69587062c
commit 81bfdd087b
6 changed files with 60 additions and 48 deletions
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2
tools/lib/bpf/bpf_helpers.h
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@ -53,4 +53,6 @@ enum libbpf_tristate {
TRI_MODULE = 2,
};
#define __kconfig __attribute__((section(".kconfig")))
#endif