[PATCH bpf-next v2 0/7] BTF uapi cleanup

[Martin KaFai Lau <kafai@fb.com>]

This patch set makes some changes to cleanup the unused
bits in BTF uapi.  It also makes the btf_header extensible.

Please see individual patches for details.

v2:
- Remove NR_SECS from patch 2
- Remove "unsigned" check on array->index_type from patch 3
- Remove BTF_INT_VARARGS and further limit BTF_INT_ENCODING
  from 8 bits to 4 bits in patch 4
- Adjustments in test_btf.c to reflect changes in v2

Martin KaFai Lau (7):
  bpf: Expose check_uarg_tail_zero()
  bpf: btf: Change how section is supported in btf_header
  bpf: btf: Check array->index_type
  bpf: btf: Remove unused bits from uapi/linux/btf.h
  bpf: btf: Rename btf_key_id and btf_value_id in bpf_map_info
  bpf: btf: Sync bpf.h and btf.h to tools
  bpf: btf: Add tests for the btf uapi changes

 include/linux/bpf.h                    |   6 +-
 include/uapi/linux/bpf.h               |   8 +-
 include/uapi/linux/btf.h               |  37 +--
 kernel/bpf/arraymap.c                  |   2 +-
 kernel/bpf/btf.c                       | 335 +++++++++++++++------
 kernel/bpf/syscall.c                   |  32 +-
 tools/include/uapi/linux/bpf.h         |   8 +-
 tools/include/uapi/linux/btf.h         |  37 +--
 tools/lib/bpf/bpf.c                    |   4 +-
 tools/lib/bpf/bpf.h                    |   4 +-
 tools/lib/bpf/btf.c                    |   5 +-
 tools/lib/bpf/libbpf.c                 |  34 +--
 tools/lib/bpf/libbpf.h                 |   4 +-
 tools/testing/selftests/bpf/test_btf.c | 521 +++++++++++++++++++++++++++------
 14 files changed, 753 insertions(+), 284 deletions(-)

-- 
2.9.5