When running rtla as

    `rtla <timerlat|osnoise> <top|hist> -t custom_file.txt -a 100`

-a options override trace output filename specified by -t option.
Running the command above will create <timerlat|osnoise>_trace.txt file
instead of custom_file.txt. Fix this by making sure that -a option does
not override trace output filename even if it's passed after trace
output filename is specified.

Fixes: 173a3b014827 ("rtla/timerlat: Add the automatic trace option")
Signed-off-by: Ivan Pravdin <[email protected]>
---
 tools/tracing/rtla/src/osnoise_hist.c  | 8 +++++---
 tools/tracing/rtla/src/osnoise_top.c   | 8 +++++---
 tools/tracing/rtla/src/timerlat_hist.c | 8 +++++---
 tools/tracing/rtla/src/timerlat_top.c  | 8 +++++---
 4 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/tools/tracing/rtla/src/osnoise_hist.c 
b/tools/tracing/rtla/src/osnoise_hist.c
index 92c379fbe030..babcd97cec66 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -543,7 +543,8 @@ static struct osnoise_params
                        params->threshold = 1;
 
                        /* set trace */
-                       params->trace_output = "osnoise_trace.txt";
+                       if (!params->trace_output)
+                               params->trace_output = "osnoise_trace.txt";
 
                        break;
                case 'b':
@@ -639,10 +640,11 @@ static struct osnoise_params
                                        params->trace_output = &optarg[1];
                                else
                                        params->trace_output = &optarg[0];
-                       } else if (optind < argc && argv[optind][0] != '0')
+                       } else if (optind < argc && argv[optind][0] != '0') {
                                params->trace_output = argv[optind];
-                       else
+                       } else {
                                params->trace_output = "osnoise_trace.txt";
+                       }
                        break;
                case '0': /* no header */
                        params->no_header = 1;
diff --git a/tools/tracing/rtla/src/osnoise_top.c 
b/tools/tracing/rtla/src/osnoise_top.c
index d149c3c4ac11..6c1e83f7a828 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -383,7 +383,8 @@ struct osnoise_params *osnoise_top_parse_args(int argc, 
char **argv)
                        params->threshold = 1;
 
                        /* set trace */
-                       params->trace_output = "osnoise_trace.txt";
+                       if (!params->trace_output)
+                               params->trace_output = "osnoise_trace.txt";
 
                        break;
                case 'c':
@@ -469,10 +470,11 @@ struct osnoise_params *osnoise_top_parse_args(int argc, 
char **argv)
                                        params->trace_output = &optarg[1];
                                else
                                        params->trace_output = &optarg[0];
-                       } else if (optind < argc && argv[optind][0] != '-')
+                       } else if (optind < argc && argv[optind][0] != '-') {
                                params->trace_output = argv[optind];
-                       else
+                       } else {
                                params->trace_output = "osnoise_trace.txt";
+                       }
                        break;
                case 'T':
                        params->threshold = get_llong_from_str(optarg);
diff --git a/tools/tracing/rtla/src/timerlat_hist.c 
b/tools/tracing/rtla/src/timerlat_hist.c
index c397f6260054..d4f2a5f02998 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -874,7 +874,8 @@ static struct timerlat_params
                        params->print_stack = auto_thresh;
 
                        /* set trace */
-                       trace_output = "timerlat_trace.txt";
+                       if (!trace_output)
+                               trace_output = "timerlat_trace.txt";
 
                        break;
                case 'c':
@@ -971,10 +972,11 @@ static struct timerlat_params
                                        trace_output = &optarg[1];
                                else
                                        trace_output = &optarg[0];
-                       } else if (optind < argc && argv[optind][0] != '-')
+                       } else if (optind < argc && argv[optind][0] != '-') {
                                trace_output = argv[optind];
-                       else
+                       } else {
                                trace_output = "timerlat_trace.txt";
+                       }
                        break;
                case 'u':
                        params->user_workload = 1;
diff --git a/tools/tracing/rtla/src/timerlat_top.c 
b/tools/tracing/rtla/src/timerlat_top.c
index 73949d52cf41..4f40e7ebde88 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -613,7 +613,8 @@ static struct timerlat_params
                        params->print_stack = auto_thresh;
 
                        /* set trace */
-                       trace_output = "timerlat_trace.txt";
+                       if (!trace_output)
+                               trace_output = "timerlat_trace.txt";
 
                        break;
                case '5':
@@ -716,10 +717,11 @@ static struct timerlat_params
                                        trace_output = &optarg[1];
                                else
                                        trace_output = &optarg[0];
-                       } else if (optind < argc && argv[optind][0] != '-')
+                       } else if (optind < argc && argv[optind][0] != '-') {
                                trace_output = argv[optind];
-                       else
+                       } else {
                                trace_output = "timerlat_trace.txt";
+                       }
                        break;
                case 'u':
                        params->user_workload = true;
-- 
2.48.1


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