[PATCH bpf-next 0/4] Parallelize verif_scale selftests

[Andrii Nakryiko <andrii@kernel.org>]

Reduce amount of waiting time when running test_progs in parallel mode (-j) by
splitting bpf_verif_scale selftests into multiple tests. Previously it was
structured as a test with multiple subtests, but subtests are not easily
parallelizable with test_progs' infra. Also in practice each scale subtest is
really an independent test with nothing shared across all substest.

This patch set changes how test_progs test discovery works. Now it is possible
to define multiple tests within a single source code file. One of the patches
also marks tc_redirect selftests as serial, because it's extremely harmful to
the test system when run in parallel mode.

Andrii Nakryiko (4):
  selftests/bpf: normalize selftest entry points
  selftests/bpf: support multiple tests per file
  selftests/bpf: mark tc_redirect selftest as serial
  selftests/bpf: split out bpf_verif_scale selftests into multiple tests

 tools/testing/selftests/bpf/Makefile          |   7 +-
 .../bpf/prog_tests/bpf_verif_scale.c          | 220 ++++++++++++------
 .../selftests/bpf/prog_tests/btf_dump.c       |   2 +-
 .../selftests/bpf/prog_tests/resolve_btfids.c |  10 +-
 .../selftests/bpf/prog_tests/signal_pending.c |   2 +-
 .../selftests/bpf/prog_tests/snprintf.c       |   4 +-
 .../selftests/bpf/prog_tests/tc_redirect.c    |   2 +-
 .../bpf/prog_tests/xdp_adjust_tail.c          |   6 +-
 .../bpf/prog_tests/xdp_devmap_attach.c        |   4 +-
 9 files changed, 169 insertions(+), 88 deletions(-)

-- 
2.30.2