[PATCH bpf-next v4 0/2] bpftool: Support symbolic map creation flags

[Tianyi Chen <diannaaav@gmail.com>]

Add comma-separated BPF_F_* names to map create flags while retaining
base-0 numeric input, with matching documentation, completion and tests.

Changes in v4:
- Add FLAGS to the map-create synopsis in the manual.
- Rebase onto current bpf-next and shorten the commit descriptions.
- Use Assisted-by: LLM.

The v3 parser, shared feature-list table and completion behavior are
unchanged. Earlier requested functional changes were included in v2/v3.

v3: https://lore.kernel.org/r/178874713816.1519295.5079603775338308680.flags-v3-0@tychen.cc
Request: https://github.com/libbpf/bpftool/issues/57

The previous version's CI PR expired after repeated "Patch is empty"
reports. The revised series applies cleanly to the current tree and is
sent as a new thread using git format-patch and git send-email.

Validation:
- Built bpftool and its manual pages, and built the focused selftest
  runner with LLVM 20.
- All 29 bpftool_map_flags subtests passed with no skips or failures
  in an x86-64 KVM guest running Linux 7.3.0-rc2 from current bpf/master.
- The four bpftool series were tested together: all 69 subtests passed.
  The cpumask suite (36 subtests) and test_maps also passed with no skips.
- Bash syntax and the existing bpftool synchronization checks passed.

This was a focused run; unrelated selftests requiring unavailable kernel
features were excluded from the build with PERMISSIVE=1.

Tianyi Chen (2):
  bpftool: Accept symbolic map creation flags
  selftests/bpf: Cover symbolic bpftool map creation flags

 .../bpftool/Documentation/bpftool-feature.rst |  10 +-
 .../bpf/bpftool/Documentation/bpftool-map.rst |  14 ++-
 tools/bpf/bpftool/bash-completion/bpftool     |  22 +++-
 tools/bpf/bpftool/feature.c                   |   7 +-
 tools/bpf/bpftool/main.h                      |   1 +
 tools/bpf/bpftool/map.c                       |  85 ++++++++++++++-
 .../bpf/prog_tests/bpftool_map_flags.c        | 100 ++++++++++++++++++
 7 files changed, 226 insertions(+), 13 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_map_flags.c


base-commit: af0b84a9215d951d16f26b7ee34353b970cf5d4e
-- 
2.55.0