selftests/bpf: Propagate errors during setup for reuseport tests

Prepare for switching reuseport tests to test_progs framework, where we
don't have the luxury to terminate the process on failure.

Modify setup helpers to signal failure via the return value with the help
of a macro similar to the one currently in use by the tests.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191212102259.418536-8-jakub@cloudflare.com
This commit is contained in:
Jakub Sitnicki 2019-12-12 11:22:56 +01:00 • committed by Alexei Starovoitov
commit 9af6c84435