linux-kernel - [PATCH AUTOSEL 6.12 02/36] rtla: Fix consistency in getopt_long for timerlat

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Message-ID: <20241204154626.2211476-2-sashal@kernel.org>
Date: Wed,  4 Dec 2024 10:45:18 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Gabriele Monaco <gmonaco@...hat.com>,
	John Kacur <jkacur@...hat.com>,
	Luis Goncalves <lgoncalv@...hat.com>,
	Tomas Glozar <tglozar@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Sasha Levin <sashal@...nel.org>,
	bristot@...nel.org,
	linux-trace-kernel@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 02/36] rtla: Fix consistency in getopt_long for timerlat_hist

From: Gabriele Monaco <gmonaco@...hat.com>

[ Upstream commit cfb1ea216c1656a4112becbc4bf757891933b902 ]

Commit e9a4062e1527 ("rtla: Add --trace-buffer-size option") adds a new
long option to rtla utilities, but among all affected files,
timerlat_hist misses a trailing `:` in the corresponding short option
inside the getopt string (e.g. `\3:`). This patch propagates the `:`.

Although this change is not functionally required, it improves
consistency and slightly reduces the likelihood a future change would
introduce a problem.

Cc: John Kacur <jkacur@...hat.com>
Cc: Luis Goncalves <lgoncalv@...hat.com>
Cc: Tomas Glozar <tglozar@...hat.com>
Link: https://lore.kernel.org/20240926143417.54039-1-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@...hat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/tracing/rtla/src/timerlat_hist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index a3907c390d67a..1f9137c592f45 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -778,7 +778,7 @@ static struct timerlat_hist_params
 		/* getopt_long stores the option index here. */
 		int option_index = 0;
 
-		c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3",
+		c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
 				 long_options, &option_index);
 
 		/* detect the end of the options. */
-- 
2.43.0