[for-linus][PATCH 3/3] tracing/tools: Fix incorrcet short option in usage text for --threads

From: Steven Rostedt

Date: Fri Nov 07 2025 - 08:07:57 EST


From: Zhang Chujun <zhangchujun@xxxxxxxxxxxxxxxxxxxx>

The help message incorrectly listed '-t' as the short option for
--threads, but the actual getopt_long configuration uses '-e'.
This mismatch can confuse users and lead to incorrect command-line
usage. This patch updates the usage string to correctly show:
"-e, --threads NRTHR"
to match the implementation.

Note: checkpatch.pl reports a false-positive spelling warning on
'Run', which is intentional.

Link: https://patch.msgid.link/20251106031040.1869-1-zhangchujun@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Zhang Chujun <zhangchujun@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
tools/tracing/latency/latency-collector.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tracing/latency/latency-collector.c b/tools/tracing/latency/latency-collector.c
index cf263fe9deaf..ef97916e3873 100644
--- a/tools/tracing/latency/latency-collector.c
+++ b/tools/tracing/latency/latency-collector.c
@@ -1725,7 +1725,7 @@ static void show_usage(void)
"-n, --notrace\t\tIf latency is detected, do not print out the content of\n"
"\t\t\tthe trace file to standard output\n\n"

-"-t, --threads NRTHR\tRun NRTHR threads for printing. Default is %d.\n\n"
+"-e, --threads NRTHR\tRun NRTHR threads for printing. Default is %d.\n\n"

"-r, --random\t\tArbitrarily sleep a certain amount of time, default\n"
"\t\t\t%ld ms, before reading the trace file. The\n"
--
2.51.0