Re: [PATCH bpf-next v2 0/5] samples: bpf: continue effort to get rid of bpf_load

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On 02/28/2019 04:04 AM, Jakub Kicinski wrote:
> Hi!
> 
> This set is next part of a quest to get rid of the bpf_load
> ELF loader.  It fixes some minor issues with the samples and
> starts the conversion.
> 
> First patch fixes ping invocations, ping localhost defaults
> to IPv6 on modern setups. Next load_sock_ops sample is removed
> and users are directed towards using bpftool directly.
> 
> Patch 4 removes the use of bpf_load from samples which don't
> need the auto-attachment functionality at all.
> 
> Patch 5 improves symbol counting in libbpf, it's not currently
> an issue but it will be when anyone adds a symbol with a long
> name. Let's make sure that person doesn't have to spend time
> scratching their head and wondering why .a and .so symbol
> counts don't match.
> 
> v2: - specify prog_type where possible (Andrii).
> 
> Jakub Kicinski (5):
>   samples: bpf: force IPv4 in ping
>   samples: bpf: remove load_sock_ops in favour of bpftool
>   tools: libbpf: add a correctly named define for map iteration
>   samples: bpf: use libbpf where easy
>   tools: libbpf: make sure readelf shows full names in build checks
> 
>  samples/bpf/.gitignore                        |  1 -
>  samples/bpf/Makefile                          |  8 +-
>  samples/bpf/fds_example.c                     | 10 +-
>  samples/bpf/load_sock_ops.c                   | 97 -------------------
>  samples/bpf/sock_example.c                    |  2 +-
>  samples/bpf/sockex1_user.c                    | 25 ++---
>  samples/bpf/sockex2_user.c                    | 23 +++--
>  samples/bpf/sockex3_user.c                    |  2 +-
>  samples/bpf/tcp_basertt_kern.c                |  2 +-
>  samples/bpf/tcp_bpf.readme                    | 14 +--
>  samples/bpf/tcp_bufs_kern.c                   |  2 +-
>  samples/bpf/tcp_clamp_kern.c                  |  2 +-
>  samples/bpf/tcp_cong_kern.c                   |  2 +-
>  samples/bpf/tcp_iw_kern.c                     |  2 +-
>  samples/bpf/tcp_rwnd_kern.c                   |  2 +-
>  samples/bpf/tcp_synrto_kern.c                 |  2 +-
>  samples/bpf/tcp_tos_reflect_kern.c            |  2 +-
>  samples/bpf/tracex2_user.c                    |  2 +-
>  tools/bpf/bpftool/prog.c                      |  4 +-
>  tools/lib/bpf/Makefile                        |  4 +-
>  tools/lib/bpf/libbpf.c                        |  8 +-
>  tools/lib/bpf/libbpf.h                        |  3 +-
>  tools/perf/util/bpf-loader.c                  |  4 +-
>  .../testing/selftests/bpf/test_libbpf_open.c  |  2 +-
>  24 files changed, 69 insertions(+), 156 deletions(-)
>  delete mode 100644 samples/bpf/load_sock_ops.c
> 

Applied, thanks for cleaning this up!



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