[PATCH bpf-next 0/9] Misc libbpf fixes and small improvements

[Andrii Nakryiko <andrii@kernel.org>]

This patch set is a mix of mostly mutually unrelated libbpf and selftests
fixes and improvements. Individual patches provide details on each one.

Andrii Nakryiko (9):
  selftests/bpf: prevent skeleton generation race
  libbpf: make __kptr and __kptr_ref unconditionally use btf_type_tag()
    attr
  libbpf: improve usability of field-based CO-RE helpers
  selftests/bpf: use both syntaxes for field-based CO-RE helpers
  libbpf: complete field-based CO-RE helpers with field offset helper
  selftests/bpf: add bpf_core_field_offset() tests
  libbpf: provide barrier() and barrier_var() in bpf_helpers.h
  libbpf: automatically fix up BPF_MAP_TYPE_RINGBUF size, if necessary
  selftests/bpf: test libbpf's ringbuf size fix up logic

 tools/lib/bpf/bpf_core_read.h                 | 37 ++++++++++++++--
 tools/lib/bpf/bpf_helpers.h                   | 29 ++++++++++---
 tools/lib/bpf/libbpf.c                        | 42 ++++++++++++++++++-
 tools/testing/selftests/bpf/Makefile          | 10 ++---
 .../selftests/bpf/prog_tests/core_reloc.c     | 13 +++++-
 .../selftests/bpf/prog_tests/ringbuf_multi.c  | 12 ------
 .../progs/btf__core_reloc_size___diff_offs.c  |  3 ++
 .../selftests/bpf/progs/core_reloc_types.h    | 18 ++++++++
 .../selftests/bpf/progs/exhandler_kern.c      |  2 -
 tools/testing/selftests/bpf/progs/loop5.c     |  1 -
 tools/testing/selftests/bpf/progs/profiler1.c |  1 -
 tools/testing/selftests/bpf/progs/pyperf.h    |  2 -
 .../bpf/progs/test_core_reloc_existence.c     | 11 +++--
 .../bpf/progs/test_core_reloc_size.c          | 31 ++++++++++++--
 .../selftests/bpf/progs/test_pkt_access.c     |  2 -
 .../selftests/bpf/progs/test_ringbuf_multi.c  |  2 +
 16 files changed, 169 insertions(+), 47 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_offs.c

-- 
2.30.2