[for-next][PATCH 3/3] tracing: Remove spurious default precision from show_event_trigger/filter formats
From: Steven Rostedt
Date: Sun Mar 29 2026 - 11:57:03 EST
From: David Laight <david.laight.linux@xxxxxxxxx>
Change 2d8b7f9bf8e6e ("tracing: Have show_event_trigger/filter format a bit more in columns")
added space padding to align the output.
However it used ("%*.s", len, "") which requests the default precision.
It doesn't matter here whether the userspace default (0) or kernel
default (no precision) is used, but the format should be "%*s".
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20260326201824.3919-1-david.laight.linux@xxxxxxxxx
Signed-off-by: David Laight <david.laight.linux@xxxxxxxxx>
Acked-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Reviewed-by: Petr Mladek <pmladek@xxxxxxxx>
Reviewed-by: Aaron Tomlin <atomlin@xxxxxxxxxxx>
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
kernel/trace/trace_events.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 6523c873689a..de807a9e2371 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1718,7 +1718,7 @@ static int t_show_filters(struct seq_file *m, void *v)
len = get_call_len(call);
- seq_printf(m, "%s:%s%*.s%s\n", call->class->system,
+ seq_printf(m, "%s:%s%*s%s\n", call->class->system,
trace_event_name(call), len, "", filter->filter_string);
return 0;
@@ -1750,7 +1750,7 @@ static int t_show_triggers(struct seq_file *m, void *v)
len = get_call_len(call);
list_for_each_entry_rcu(data, &file->triggers, list) {
- seq_printf(m, "%s:%s%*.s", call->class->system,
+ seq_printf(m, "%s:%s%*s", call->class->system,
trace_event_name(call), len, "");
data->cmd_ops->print(m, data);
--
2.51.0