Re: [PATCH 2/2] selftests/tracing: Fix to check the required syscall event

From: Shuah Khan
Date: Fri May 31 2024 - 10:41:09 EST


On 5/31/24 03:43, Masami Hiramatsu (Google) wrote:
From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

Since test_duplicates.tc depends on syscalls/sys_enter_openat event,
it must add the event file to `requires`.
Without this fix, the test fails if CONFIG_FTRACE_SYSCALLS=n.

Fixes: 297e1dcdca3d ("selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
---
.../ftrace/test.d/dynevent/test_duplicates.tc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
index d3a79da215c8..5f72abe6fa79 100644
--- a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
@@ -1,7 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: Generic dynamic event - check if duplicate events are caught
-# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README
+# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README events/syscalls/sys_enter_openat
echo 0 > events/enable



This change is already in mainline. I sent the fix up in my 6.10-rc1 pr?
The short log is a slightly different:

commit f6c3c83db1d939ebdb8c8922748ae647d8126d91
Author: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Date: Tue May 21 09:00:22 2024 +0900

selftests/ftrace: Fix to check required event file
The dynevent/test_duplicates.tc test case uses `syscalls/sys_enter_openat`
event for defining eprobe on it. Since this `syscalls` events depend on
CONFIG_FTRACE_SYSCALLS=y, if it is not set, the test will fail.
Add the event file to `required` line so that the test will return
`unsupported` result.
Fixes: 297e1dcdca3d ("selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>

thanks,
-- Shuah