[PATCH bpf 0/3] bpf: Enforce NULL check on new _OR_NULL return types

[Martin KaFai Lau]

This set enforces NULL check on the new helper return types,
RET_PTR_TO_BTF_ID_OR_NULL and RET_PTR_TO_MEM_OR_BTF_ID_OR_NULL.

Martin KaFai Lau (3):
  bpf: Enforce id generation for all may-be-null register type
  bpf: selftest: Ensure the return value of bpf_skc_to helpers must be
    checked
  bpf: selftest: Ensure the return value of the bpf_per_cpu_ptr() must
    be checked

 kernel/bpf/verifier.c                         | 11 ++--
 .../selftests/bpf/prog_tests/ksyms_btf.c      | 57 +++++++++++++------
 .../bpf/progs/test_ksyms_btf_null_check.c     | 31 ++++++++++
 tools/testing/selftests/bpf/verifier/sock.c   | 25 ++++++++
 4 files changed, 100 insertions(+), 24 deletions(-)
 create mode 100644 
tools/testing/selftests/bpf/progs/test_ksyms_btf_null_check.c

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2.24.1