Menglong Dong f734248174 bpf: selftests: Add bind retry for post_bind{4, 6} ...

With previous patch, kernel is able to 'put_port' after sys_bind()
fails. Add the test for that case: rebind another port after
sys_bind() fails. If the bind success, it means previous bind
operation is already undoed.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220106132022.3470772-4-imagedong@tencent.com

2022-01-06 17:08:35 -08:00

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