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authorMikhail Kobuk2023-08-25 13:34:30 +0300
committerGreg Kroah-Hartman2023-09-13 09:42:57 +0200
commitfb34716c9ee6700bc6f2b0fdc2a46a4c534b0c93 (patch)
tree39fd0008186d1089e970ca9c9b06161205c231ab
parentca5e8427e20d770b7b2ad0c4eafd17f4f77c7779 (diff)
tracing: Remove extra space at the end of hwlat_detector/mode
[ 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@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> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--kernel/trace/trace_hwlat.c2
1 files changed, 1 insertions, 1 deletions
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;