tree 0f5dfede9d448a1c72e77afdc284f4052e7f9df6
parent 186d1a86003ddcf0ec9e85e17ece868663106639
author Andrii Nakryiko <andrii@kernel.org> 1638401302 -0800
committer Alexei Starovoitov <ast@kernel.org> 1638487420 -0800

samples/bpf: Clean up samples/bpf build failes

Remove xdp_samples_user.o rule redefinition which generates Makefile
warning and instead override TPROGS_CFLAGS. This seems to work fine when
building inside selftests/bpf.

That was one big head-scratcher before I found that generic
Makefile.target hid this surprising specialization for for xdp_samples_user.o.

Main change is to use actual locally installed libbpf headers.

Also drop printk macro re-definition (not even used!).

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211201232824.3166325-8-andrii@kernel.org