From: Douglas Raillard <[email protected]> The printk format for synth event uses "%.*s" to print string fields, but then only passes the pointer part as var arg.
Add the missing precision var arg. Signed-off-by: Douglas Raillard <[email protected]> --- kernel/trace/trace_events_synth.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c index e3f7d09e5512..274b9b1d9f7d 100644 --- a/kernel/trace/trace_events_synth.c +++ b/kernel/trace/trace_events_synth.c @@ -620,7 +620,8 @@ static int __set_synth_event_print_fmt(struct synth_event *event, if (event->fields[i]->is_string && event->fields[i]->is_dynamic) pos += snprintf(buf + pos, LEN_OR_ZERO, - ", __get_str(%s)", event->fields[i]->name); + ", (int)__get_dynamic_array_len(%s), __get_str(%s)", + event->fields[i]->name, event->fields[i]->name); else if (event->fields[i]->is_stack) pos += snprintf(buf + pos, LEN_OR_ZERO, ", __get_stacktrace(%s)", event->fields[i]->name); -- 2.43.0
