[PATCH bpf-next v4 0/5] clean-up bpftool from legacy support

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As part of commit 93b8952d223a ("libbpf: deprecate legacy BPF map
definitions") and commit bd054102a8c7 ("libbpf: enforce strict libbpf
1.0 behaviors") The --legacy option is not relevant anymore. #1 is
removing it. #4 is cleaning the code from using libbpf_get_error().

About patches #2 and #3 They are changes discovered while working on
this series (credits to Quentin Monnet). #2 is cleaning-up usage of an
unnecessary PTR_ERR(NULL), finally #3 is fixing an invalid value
passed to strerror().

v1 -> v2:
   - Addressed review comments from Yonghong Song on patch #4
   - Added a patch #5 that removes unwanted function noticed by
     Yonghong Song
v2 -> v3
   - Addressed review comments from Andrii Nakryiko on patch #2, #3, #4
     * clean-up usage of libbpf_get_error() (#2, #3)
     * fix possible return of an uninitialized local variable err
     * fix returned errors using errno
v3 -> v4
   - Addressed review comments from Quentin Monnet
     * fix line moved from patch #2 to patch #3
     * fix missing returned errors using errno
     * fix some returned values to errno instead of -1

Sahid Orentino Ferdjaoui (5):
  bpftool: remove support of --legacy option for bpftool
  bpftool: replace return value PTR_ERR(NULL) with 0
  bpftool: fix error message when function can't register struct_ops
  bpftool: clean-up usage of libbpf_get_error()
  bpftool: remove function free_btf_vmlinux()

 .../bpftool/Documentation/common_options.rst  |  9 --------
 .../bpftool/Documentation/substitutions.rst   |  2 +-
 tools/bpf/bpftool/bash-completion/bpftool     |  2 +-
 tools/bpf/bpftool/btf.c                       | 19 +++++++---------
 tools/bpf/bpftool/btf_dumper.c                |  2 +-
 tools/bpf/bpftool/gen.c                       | 10 ++++-----
 tools/bpf/bpftool/iter.c                      | 10 +++++----
 tools/bpf/bpftool/main.c                      | 22 +++----------------
 tools/bpf/bpftool/main.h                      |  3 +--
 tools/bpf/bpftool/map.c                       | 20 ++++++-----------
 tools/bpf/bpftool/prog.c                      | 15 +++++--------
 tools/bpf/bpftool/struct_ops.c                | 22 ++++++++-----------
 .../selftests/bpf/test_bpftool_synctypes.py   |  6 ++---
 13 files changed, 49 insertions(+), 93 deletions(-)

--
2.34.1






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