From: Mikhail Kobuk <m.kobuk@ispras.ru>
Date: Fri, 25 Aug 2023 13:34:30 +0300
Subject: tracing: Remove extra space at the end of hwlat_detector/mode
Git-commit: 2cf0dee989a8b2501929eaab29473b6b1fa11057
Patch-mainline: v6.6-rc1
References: git-fixes
Space is printed after each mode value including the last one:
$ echo \"$(sudo cat /sys/kernel/tracing/hwlat_detector/mode)\"
"none [round-robin] per-cpu "
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Link: https://lore.kernel.org/linux-trace-kernel/20230825103432.7750-1-m.kobuk@ispras.ru
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 8fa826b7344d ("trace/hwlat: Implement the mode config option")
Signed-off-by: Mikhail Kobuk <m.kobuk@ispras.ru>
Reviewed-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
---
kernel/trace/trace_hwlat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace_hwlat.c b/kernel/trace/trace_hwlat.c
index 2f37a6e68aa9..b791524a6536 100644
--- a/kernel/trace/trace_hwlat.c
+++ b/kernel/trace/trace_hwlat.c
@@ -635,7 +635,7 @@ static int s_mode_show(struct seq_file *s, void *v)
else
seq_printf(s, "%s", thread_mode_str[mode]);
- if (mode != MODE_MAX)
+ if (mode < MODE_MAX - 1) /* if mode is any but last */
seq_puts(s, " ");
return 0;