libbpf: Rename DECLARE_LIBBPF_OPTS into LIBBPF_OPTS
It's confusing that libbpf-provided helper macro doesn't start with LIBBPF. Also "declare" vs "define" is confusing terminology, I can never remember and always have to look up previous examples. Bypass both issues by renaming DECLARE_LIBBPF_OPTS into a short and clean LIBBPF_OPTS. To avoid breaking existing code, provide: #define DECLARE_LIBBPF_OPTS LIBBPF_OPTS in libbpf_legacy.h. We can decide later if we ever want to remove it or we'll keep it forever because it doesn't add any maintainability burden. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Dave Marchevsky <davemarchevsky@fb.com> Link: https://lore.kernel.org/bpf/20211103220845.2676888-2-andrii@kernel.org
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