From: sunliming Date: Mon, 26 Jun 2023 11:13:44 +0000 (+0800) Subject: selftests/user_events: Add test cases when event is disabled X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d34a271accf8fad00e05aad2cecb9fb53a840a94;p=users%2Fjedix%2Flinux-maple.git selftests/user_events: Add test cases when event is disabled 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) --- diff --git a/tools/testing/selftests/user_events/ftrace_test.c b/tools/testing/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 = ®.write_index; io[0].iov_len = sizeof(reg.write_index); + /* 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 = open(enable_file, O_RDWR); ASSERT_NE(-1, write(self->enable_fd, "1", sizeof("1")))