From: Geliang Tang tanggeliang@kylinos.cn
v4: - fix a bug in v3, it should be 'if (err)', not 'if (!err)'. - move "selftests/bpf: Use log_err in network_helpers" out of this series.
v3: - add two more patches. - use log_err instead of ASSERT in v3. - let send_recv_data return int as Martin suggested.
v2:
Address Martin's comments for v1 (thanks.) - drop patch 1, "export send_byte helper". - drop "WRITE_ONCE(arg.stop, 0)". - rebased.
send_recv_data will be re-used in MPTCP bpf tests, but not included in this set because it depends on other patches that have not been in the bpf-next yet. It will be sent as another set soon.
Geliang Tang (3): selftests/bpf: Add struct send_recv_arg selftests/bpf: Export send_recv_data helper selftests/bpf: Support nonblock for send_recv_data
tools/testing/selftests/bpf/network_helpers.c | 103 ++++++++++++++++++ tools/testing/selftests/bpf/network_helpers.h | 1 + .../selftests/bpf/prog_tests/bpf_tcp_ca.c | 71 +----------- 3 files changed, 105 insertions(+), 70 deletions(-)