If we try to access argument which is pointer to const void, it's an UNKNOWN type, verifier will fail to load.
Use is_void_or_int_ptr to check if type is void or int pointer. And fix selftests.
--- KaFai Wan (2): bpf: Allow access to const void pointer arguments in tracing programs selftests/bpf: Add test to access const void pointer argument in tracing program
kernel/bpf/btf.c | 6 +++--- net/bpf/test_run.c | 8 +++++++- .../selftests/bpf/progs/verifier_btf_ctx_access.c | 12 ++++++++++++ 3 files changed, 22 insertions(+), 4 deletions(-)
Changelog: v1->v2: Addressed comments from jirka - use btf_type_is_void to check if type is void - merge is_void_ptr and is_int_ptr to is_void_or_int_ptr - fix selftests
Some details in here: https://lore.kernel.org/all/20250412170626.3638516-1-kafai.wan@hotmail.com/