Commit d34a271a authored by sunliming's avatar sunliming Committed by Steven Rostedt (Google)
Browse files

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: default avatarBeau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: default avatarsunliming <sunliming@kylinos.cn>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent c27b40cf

tools/testing/selftests/user_events/ftrace_test.c

+4 −0
Original line number Diff line number Diff line
@@ -324,6 +324,10 @@ TEST_F(user, write_events) { 
	io[0].iov_base = &reg.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")))