[PATCH bpf-next 0/3] Two small fixes for global subprog tagging

[Andrii Nakryiko <andrii@kernel.org>]

Fix a bug with passing trusted PTR_TO_BTF_ID_OR_NULL register into global
subprog that expects `__arg_trusted __arg_nullable` arguments, which was
discovered when adopting production BPF application.

Also fix annoying warnings that are irrelevant for static subprogs, which are
just an artifact of using btf_prepare_func_args() for both static and global
subprogs.

Andrii Nakryiko (3):
  bpf: handle trusted PTR_TO_BTF_ID_OR_NULL in argument check logic
  selftests/bpf: add more cases for __arg_trusted __arg_nullable args
  bpf: don't emit warnings intended for global subprogs for static
    subprogs

 kernel/bpf/btf.c                              |  6 ++++
 kernel/bpf/verifier.c                         |  1 +
 .../bpf/progs/verifier_global_ptr_args.c      | 32 +++++++++++++++++--
 3 files changed, 36 insertions(+), 3 deletions(-)

-- 
2.34.1