selftests: add a test for bpf_prog_test_run_xattr

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Make sure that bpf_prog_test_run_xattr returns the correct length
and that the kernel respects the output size hint. Also check
that errno indicates ENOSPC if there is a short output buffer given.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Lorenz Bauer 2018-12-03 11:31:26 +00:00 • committed by Alexei Starovoitov

parent 64a975913b

commit df47fc376d

1 changed files with 54 additions and 1 deletions

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tools/testing/selftests/bpf/test_progs.c

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