The progs for bpf selftests use several different notations to force
function inlining. Standardize to what most of them use,
static __always_inline.
Suggested-by: Song Liu <liu.song.a23@gmail.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>