Add test for fixed issue: user passing a token with a very large token_count. Expect an error in this case. Signed-off-by: Mina Almasry <almasrymina@xxxxxxxxxx> --- tools/testing/selftests/net/ncdevmem.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/testing/selftests/net/ncdevmem.c b/tools/testing/selftests/net/ncdevmem.c index 64d6805381c5..3fd2aee461f3 100644 --- a/tools/testing/selftests/net/ncdevmem.c +++ b/tools/testing/selftests/net/ncdevmem.c @@ -391,6 +391,17 @@ int do_server(void) continue; } + token.token_start = dmabuf_cmsg->frag_token; + token.token_count = 8192; + + ret = setsockopt(client_fd, SOL_SOCKET, + SO_DEVMEM_DONTNEED, &token, + sizeof(token)); + if (ret >= 0) + error(1, 0, + "DONTNEED of too many frags should have failed. ret=%ld\n", + ret); + token.token_start = dmabuf_cmsg->frag_token; token.token_count = 1; -- 2.47.0.163.g1226f6d8fa-goog
