From nobody Mon Feb 9 01:44:50 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 601DFEB64DA for ; Wed, 28 Jun 2023 14:05:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232705AbjF1OFv (ORCPT ); Wed, 28 Jun 2023 10:05:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232584AbjF1OET (ORCPT ); Wed, 28 Jun 2023 10:04:19 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CEE530EA for ; Wed, 28 Jun 2023 07:03:42 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 981056134E for ; Wed, 28 Jun 2023 14:03:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1308EC433C8; Wed, 28 Jun 2023 14:03:41 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.96) (envelope-from ) id 1qEVlj-002pil-0x; Wed, 28 Jun 2023 10:03:39 -0400 Message-ID: <20230628140339.117011485@goodmis.org> User-Agent: quilt/0.66 Date: Wed, 28 Jun 2023 08:54:51 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Andrew Morton , Beau Belgrave , sunliming Subject: [for-linus][PATCH 3/3] selftests/user_events: Add test cases when event is disabled References: <20230628125448.007243475@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: sunliming When user_events are disabled, it's write operation should return -EBADF. Add this test cases. Link: https://lkml.kernel.org/r/20230626111344.19136-4-sunliming@kylinos.cn Acked-by: Beau Belgrave Signed-off-by: sunliming Signed-off-by: Steven Rostedt (Google) --- tools/testing/selftests/user_events/ftrace_test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/user_events/ftrace_test.c b/tools/test= ing/selftests/user_events/ftrace_test.c index 88898749e5b7..5beb0aef1d81 100644 --- a/tools/testing/selftests/user_events/ftrace_test.c +++ b/tools/testing/selftests/user_events/ftrace_test.c @@ -324,6 +324,10 @@ TEST_F(user, write_events) { io[0].iov_base =3D ®.write_index; io[0].iov_len =3D sizeof(reg.write_index); =20 + /* Write should return -EBADF when event is not enabled */ + ASSERT_EQ(-1, writev(self->data_fd, (const struct iovec *)io, 3)); + ASSERT_EQ(EBADF, errno); + /* Enable event */ self->enable_fd =3D open(enable_file, O_RDWR); ASSERT_NE(-1, write(self->enable_fd, "1", sizeof("1"))) --=20 2.39.2