selftests/kprobe: Do not test for GRP/ without event failures

[ Upstream commit f5eab65ff2b76449286d18efc7fee3e0b72f7d9b ]

A new feature is added where kprobes (and other probes) do not need to
explicitly state the event name when creating a probe. The event name will
come from what is being attached.

That is:

  # echo 'p:foo/ vfs_read' > kprobe_events

Will no longer error, but instead create an event:

  # cat kprobe_events
 p:foo/p_vfs_read_0 vfs_read

This should not be tested as an error case anymore. Remove it from the
selftest as now this feature "breaks" the selftest as it no longer fails
as expected.

Link: https://lore.kernel.org/all/1656296348-16111-1-git-send-email-quic_linyyuan@quicinc.com/
Link: https://lkml.kernel.org/r/20220712161707.6dc08a14@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
index fa928b431555ca1b21d43231233cf2c304d3aef6..7c02509c71d0a0e0f0a357a9e76d28669a4d0f85 100644 (file)
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
@@ -21,7 +21,6 @@ check_error 'p:^/bar vfs_read'                # NO_GROUP_NAME
 check_error 'p:^12345678901234567890123456789012345678901234567890123456789012345/bar vfs_read'        # GROUP_TOO_LONG
 
 check_error 'p:^foo.1/bar vfs_read'    # BAD_GROUP_NAME
-check_error 'p:foo/^ vfs_read'         # NO_EVENT_NAME
 check_error 'p:foo/^12345678901234567890123456789012345678901234567890123456789012345 vfs_read'        # EVENT_TOO_LONG
 check_error 'p:foo/^bar.1 vfs_read'    # BAD_EVENT_NAME