This is a note to let you know that I've just added the patch titled selftests/ftrace: Fix BTFARG testcase to check fprobe is enabled correctly to the 6.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-ftrace-fix-btfarg-testcase-to-check-fprobe-is-enabled-correctly.patch and it can be found in the queue-6.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 2fd3ef1b9265eda7f53b9506f1ebfb67eb6435a2 Mon Sep 17 00:00:00 2001 From: "Masami Hiramatsu (Google)" <mhiramat@xxxxxxxxxx> Date: Sat, 4 May 2024 09:33:10 +0900 Subject: selftests/ftrace: Fix BTFARG testcase to check fprobe is enabled correctly From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> commit 2fd3ef1b9265eda7f53b9506f1ebfb67eb6435a2 upstream. Since the dynevent/add_remove_btfarg.tc test case forgets to ensure that fprobe is enabled for some structure field access tests which uses the fprobe, it fails if CONFIG_FPROBE=n or CONFIG_FPROBE_EVENTS=n. Fixes it to ensure the fprobe events are supported. Fixes: d892d3d3d885 ("selftests/ftrace: Add BTF fields access testcases") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc @@ -53,7 +53,7 @@ fi echo > dynamic_events -if [ "$FIELDS" ] ; then +if [ "$FIELDS" -a "$FPROBES" ] ; then echo "t:tpevent ${TP2} obj_size=s->object_size" >> dynamic_events echo "f:fpevent ${TP3}%return path=\$retval->name:string" >> dynamic_events echo "t:tpevent2 ${TP4} p->se.group_node.next->prev" >> dynamic_events Patches currently in stable-queue which might be from mhiramat@xxxxxxxxxx are queue-6.8/selftests-ftrace-fix-btfarg-testcase-to-check-fprobe-is-enabled-correctly.patch queue-6.8/ftrace-fix-possible-use-after-free-issue-in-ftrace_location.patch queue-6.8/ring-buffer-fix-a-race-between-readers-and-resize-checks.patch