5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mikhail Kobuk <m.kobuk@xxxxxxxxx> [ Upstream commit 2cf0dee989a8b2501929eaab29473b6b1fa11057 ] 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@xxxxxxxxx Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Fixes: 8fa826b7344d ("trace/hwlat: Implement the mode config option") Signed-off-by: Mikhail Kobuk <m.kobuk@xxxxxxxxx> Reviewed-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx> Acked-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 9ec032f22531c..3a994bd8520ca 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; -- 2.40.1
