[PATCH bpf-next 0/2] bpf: fix a couple of missed btf_type_tag handling in libbpf

[Yonghong Song <yhs@xxxxxx>]

Commit 2dc1e488e5cd ("libbpf: Support BTF_KIND_TYPE_TAG") added
BTF_KIND_TYPE_TAG support. But BTF_KIND_TYPE_TAG is not handled
properly in libbpf btf_dedup_is_equiv() which will cause pahole dedup
failure if the kernel has the following hack:
  #define __user __attribute__((btf_type_tag("user")))

Patch 1 fixed the issue and Patch 2 added a test for it.

Yonghong Song (2):
  libbpf: fix a couple of missed btf_type_tag handling in btf.c
  selftests/bpf: add a dedup selftest with equivalent structure types

 tools/lib/bpf/btf.c                          |  2 ++
 tools/testing/selftests/bpf/prog_tests/btf.c | 26 ++++++++++++++++++++
 2 files changed, 28 insertions(+)

-- 
2.30.2