linux-kernel - [PATCH V2 4/6] rtla/osnoise_top: Pass the params to the usage function

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Date:   Tue, 31 Jan 2023 17:30:05 +0100
From:   Daniel Bristot de Oliveira <bristot@...nel.org>
To:     Daniel Bristot de Oliveira <bristot@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Jonathan Corbet <corbet@....net>
Cc:     Juri Lelli <juri.lelli@...hat.com>,
        Clark Williams <williams@...hat.com>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        linux-trace-devel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH V2 4/6] rtla/osnoise_top: Pass the params to the usage function

In preparation to the hwnoise tool, pass the osnoise top params to the
usage function so it can be adapted according to the mode of the tool.

Also make it static, as it is only used in this file.

Signed-off-by: Daniel Bristot de Oliveira <bristot@...nel.org>
Cc: Daniel Bristot de Oliveira <bristot@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Jonathan Corbet <corbet@....net>
---
 tools/tracing/rtla/src/osnoise_top.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index d7bbd73e1a78..fd2104050e3c 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -246,7 +246,7 @@ osnoise_print_stats(struct osnoise_top_params *params, struct osnoise_tool *top)
 /*
  * osnoise_top_usage - prints osnoise top usage message
  */
-void osnoise_top_usage(char *usage)
+static void osnoise_top_usage(struct osnoise_top_params *params, char *usage)
 {
 	int i;
 
@@ -350,7 +350,7 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
 		case 'c':
 			retval = parse_cpu_list(optarg, &params->monitored_cpus);
 			if (retval)
-				osnoise_top_usage("\nInvalid -c cpu list\n");
+				osnoise_top_usage(params, "\nInvalid -c cpu list\n");
 			params->cpus = optarg;
 			break;
 		case 'D':
@@ -359,7 +359,7 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
 		case 'd':
 			params->duration = parse_seconds_duration(optarg);
 			if (!params->duration)
-				osnoise_top_usage("Invalid -D duration\n");
+				osnoise_top_usage(params, "Invalid -D duration\n");
 			break;
 		case 'e':
 			tevent = trace_event_alloc(optarg);
@@ -375,17 +375,17 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
 			break;
 		case 'h':
 		case '?':
-			osnoise_top_usage(NULL);
+			osnoise_top_usage(params, NULL);
 			break;
 		case 'p':
 			params->period = get_llong_from_str(optarg);
 			if (params->period > 10000000)
-				osnoise_top_usage("Period longer than 10 s\n");
+				osnoise_top_usage(params, "Period longer than 10 s\n");
 			break;
 		case 'P':
 			retval = parse_prio(optarg, &params->sched_param);
 			if (retval == -1)
-				osnoise_top_usage("Invalid -P priority");
+				osnoise_top_usage(params, "Invalid -P priority");
 			params->set_sched = 1;
 			break;
 		case 'q':
@@ -394,7 +394,7 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
 		case 'r':
 			params->runtime = get_llong_from_str(optarg);
 			if (params->runtime < 100)
-				osnoise_top_usage("Runtime shorter than 100 us\n");
+				osnoise_top_usage(params, "Runtime shorter than 100 us\n");
 			break;
 		case 's':
 			params->stop_us = get_llong_from_str(optarg);
@@ -420,7 +420,7 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
 					exit(EXIT_FAILURE);
 				}
 			} else {
-				osnoise_top_usage("--trigger requires a previous -e\n");
+				osnoise_top_usage(params, "--trigger requires a previous -e\n");
 			}
 			break;
 		case '1': /* filter */
@@ -431,11 +431,11 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
 					exit(EXIT_FAILURE);
 				}
 			} else {
-				osnoise_top_usage("--filter requires a previous -e\n");
+				osnoise_top_usage(params, "--filter requires a previous -e\n");
 			}
 			break;
 		default:
-			osnoise_top_usage("Invalid option");
+			osnoise_top_usage(params, "Invalid option");
 		}
 	}
 
-- 
2.38.1