[bpf-next PATCH v3 0/5] selftests/bpf: Migrate test_tcpbpf_user to be a part of test_progs framework

[Alexander Duyck <alexander.duyck@gmail.com>]

Move the test functionality from test_tcpbpf_user into the test_progs 
framework so that it will be run any time the test_progs framework is run.
This will help to prevent future test escapes as the individual tests, such
as test_tcpbpf_user, are less likely to be run by developers and CI
tests.

As a part of moving it over the series goes through and updates the code to 
make use of the existing APIs included in the test_progs framework. This is
meant to simplify and streamline the test code and avoid duplication of
effort. 

v2: Dropped test_tcpbpf_user from .gitignore
    Replaced CHECK_FAIL calls with CHECK calls
    Minimized changes in patch 1 when moving the file
    Updated stg mail command line to display renames in submission
    Added shutdown logic to end of run_test function to guarantee close
    Added patch that replaces the two maps with use of global variables
v3: Left err at -1 while we are performing send/recv calls w/ data
    Drop extra labels from test_tcpbpf_user in favor of keeping err label
    Dropped redundant zero init for tcpbpf_globals result and key
    Dropped replacing of "printf(" with "fprintf(stderr, "
    Fixed error in use of ASSERT_OK_PTR which was skipping of run_test
    Replaced "{ 0 }" with "{}" in init of global in test_tcpbpf_kern.c
    Added "Acked-by" from Martin KaiFai Lau and Andrii Nakryiko

---

Alexander Duyck (5):
      selftests/bpf: Move test_tcppbf_user into test_progs
      selftests/bpf: Drop python client/server in favor of threads
      selftests/bpf: Replace EXPECT_EQ with ASSERT_EQ and refactor verify_results
      selftests/bpf: Migrate tcpbpf_user.c to use BPF skeleton
      selftest/bpf: Use global variables instead of maps for test_tcpbpf_kern


 .../selftests/bpf/prog_tests/tcpbpf_user.c    | 226 +++++++++---------
 .../selftests/bpf/progs/test_tcpbpf_kern.c    |  86 +------
 tools/testing/selftests/bpf/tcp_client.py     |  50 ----
 tools/testing/selftests/bpf/tcp_server.py     |  80 -------
 tools/testing/selftests/bpf/test_tcpbpf.h     |   2 +
 5 files changed, 128 insertions(+), 316 deletions(-)
 delete mode 100755 tools/testing/selftests/bpf/tcp_client.py
 delete mode 100755 tools/testing/selftests/bpf/tcp_server.py

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