[PATCH bpf-next v2 0/3] Avoid warning on bpf_sock_addr padding access

[Paul Chaignon <paul.chaignon@gmail.com>]

This patchset fixes bpf_sock_addr padding access to avoid a kernel
warning and improves our selftests coverage for these ctx padding cases.

Changes in v2:
  - Rebased on top of bpf-next.
  - Added selftests for paddings in bpf_sock and sk_reuseport_md.
  - Simplified sock_addr_is_valid_access's logic, as suggested by Daniel.
  - Removed a tab copied from existing code and spotted by Eduard.

Paul Chaignon (3):
  bpf: Explicitly check accesses to bpf_sock_addr
  selftests/bpf: Move macros to bpf_misc.h
  selftest/bpf: Test accesses to ctx padding

 net/core/filter.c                             | 16 ++++++----
 tools/testing/selftests/bpf/progs/bpf_misc.h  |  4 +++
 .../selftests/bpf/progs/test_cls_redirect.c   |  4 +--
 .../bpf/progs/test_tcp_hdr_options.c          |  5 +--
 .../selftests/bpf/progs/verifier_ctx.c        | 32 +++++++++++++++++--
 .../selftests/bpf/progs/verifier_sock.c       |  4 ---
 6 files changed, 46 insertions(+), 19 deletions(-)

-- 
2.43.0