[PATCH v2 bpf-next 0/4] Generate NULL in vmlinux.h

Generate NULL definition as part of vmlinux.h. This is a pretty common and
unfortunate annoyance that most users of vmlinux.h have to deal with. Patch #2
drops such custom NULL definition in one of the selftests. Patches #3 and #4
make bpftool and selftests compilations stricter by treating warnings as
errors.

v1->v2:
  - fix few typos and wrong copy/paste;
  - fix #pragma push -> pop.

Andrii Nakryiko (4):
  bpftool: generate NULL definition in vmlinux.h
  selftests/bpf: drop custom NULL #define in skb_pkt_end selftest
  selftests/bpf: treat compilation warnings as errors
  bpftool: treat compilation warnings as errors

 tools/bpf/bpftool/Makefile                      | 3 ++-
 tools/bpf/bpftool/btf.c                         | 2 ++
 tools/bpf/bpftool/jit_disasm.c                  | 3 +++
 tools/testing/selftests/bpf/Makefile            | 4 ++--
 tools/testing/selftests/bpf/progs/skb_pkt_end.c | 1 -
 5 files changed, 9 insertions(+), 4 deletions(-)

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2.30.2