linux-kernel - [PATCH v1 2/2] tools/rtla: Remove unused optional option

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Message-ID: <20251002123553.389467-2-costa.shul@redhat.com>
Date: Thu,  2 Oct 2025 15:35:39 +0300
From: Costa Shulyupin <costa.shul@...hat.com>
To: Steven Rostedt <rostedt@...dmis.org>,
	Tomas Glozar <tglozar@...hat.com>,
	Costa Shulyupin <costa.shul@...hat.com>,
	Crystal Wood <crwood@...hat.com>,
	John Kacur <jkacur@...hat.com>,
	Eder Zulian <ezulian@...hat.com>,
	linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/2] tools/rtla: Remove unused optional option_index

The longindex argument of getopt_long() is optional
and tied to the unused local variable option_index.

Remove it to shorten the four longest functions
and make the code neater.

Signed-off-by: Costa Shulyupin <costa.shul@...hat.com>
---
 tools/tracing/rtla/src/osnoise_hist.c  | 5 +----
 tools/tracing/rtla/src/osnoise_top.c   | 5 +----
 tools/tracing/rtla/src/timerlat_hist.c | 5 +----
 tools/tracing/rtla/src/timerlat_top.c  | 5 +----
 4 files changed, 4 insertions(+), 16 deletions(-)

diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index 844f0468953c..df0657b78980 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -524,11 +524,8 @@ static struct common_params
 			{0, 0, 0, 0}
 		};
 
-		/* getopt_long stores the option index here. */
-		int option_index = 0;
-
 		c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:p:P:r:s:S:t::T:01234:5:6:7:",
-				 long_options, &option_index);
+				 long_options, NULL);
 
 		/* detect the end of the options. */
 		if (c == -1)
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index defa1eb63bee..1b5181e66b17 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -376,11 +376,8 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
 			{0, 0, 0, 0}
 		};
 
-		/* getopt_long stores the option index here. */
-		int option_index = 0;
-
 		c = getopt_long(argc, argv, "a:c:C::d:De:hH:p:P:qr:s:S:t::T:0:1:2:3:",
-				 long_options, &option_index);
+				 long_options, NULL);
 
 		/* Detect the end of the options. */
 		if (c == -1)
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index 02d3ffd2cf4b..c432ef5f59e7 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -840,11 +840,8 @@ static struct common_params
 			{0, 0, 0, 0}
 		};
 
-		/* 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:",
-				 long_options, &option_index);
+				 long_options, NULL);
 
 		/* detect the end of the options. */
 		if (c == -1)
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index 607b57f2f231..82e227d27af7 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -604,11 +604,8 @@ static struct common_params
 			{0, 0, 0, 0}
 		};
 
-		/* getopt_long stores the option index here. */
-		int option_index = 0;
-
 		c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
-				 long_options, &option_index);
+				 long_options, NULL);
 
 		/* detect the end of the options. */
 		if (c == -1)
-- 
2.51.0