This patch adds kernel function call support to the x86-32 bpf jit.
Signed-off-by: NMartin KaFai Lau <kafai@fb.com>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210325015149.1545267-1-kafai@fb.com