[PATCH bpf-next v10 0/4] bpftool: Add recursive map dumping

[Tianyi Chen <hi@tychen.cc>]

Rebased on current bpf-next, including Maxim's merged map-dump fixes.
The map-info fix and its tests are separate patches 1-2, included here
so mixed-BTF dumps also work on kernels without the kernel-side fix.

Changes in v10:
- Split the generic info resets from the recursive implementation.
- Rename the recursive test to avoid the upstream test-file collision.
- Preserve Quentin's Fixes/Acked-by tags and update the ENOTSUPP checks
  for the merged error-message formatter.

All 21 focused subtests pass on x86-64 KVM with Linux 7.2.13 and 7.3.0.
The four map-info regressions fail before the fix and pass after it.
All 33 subtests also pass when combined with the batch-dump series.

v9: https://lore.kernel.org/r/20260926014208.24773-1-hi@tychen.cc
Map-info v1: https://lore.kernel.org/r/cover.1790615923.git.hi@tychen.cc

Tianyi Chen (4):
  bpftool: Reset map info before each query in show and dump loops
  selftests/bpf: Check bpftool map info across mixed BTF maps
  bpftool: Add recursive map dumping
  selftests/bpf: Cover recursive bpftool map dumps

 .../bpf/bpftool/Documentation/bpftool-map.rst |  12 +-
 tools/bpf/bpftool/bash-completion/bpftool     |   3 +
 tools/bpf/bpftool/map.c                       | 154 ++++-
 .../prog_tests/bpftool_map_dump_recursive.c   | 605 ++++++++++++++++++
 .../bpf/prog_tests/bpftool_map_info.c         | 127 ++++
 5 files changed, 888 insertions(+), 13 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_map_dump_recursive.c
 create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_map_info.c


base-commit: cd5bc55288d4fd999595c8f2af6a5408cbe92a52
-- 
2.56.0