linux-kernel - [PATCH 24/27] tools/power/x86/intel-speed-select: Print friendly warning for bad command line

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Date:   Thu,  5 Mar 2020 14:45:35 -0800
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     andriy.shevchenko@...ux.intel.com
Cc:     platform-driver-x86@...r.kernel.org, prarit@...hat.com,
        linux-kernel@...r.kernel.org,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH 24/27] tools/power/x86/intel-speed-select: Print friendly warning for bad command line

When user specifies invalid option, display "Unknown Option: ignore",
instead of "no match". Also display error for garbage on the command
line.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
 tools/power/x86/intel-speed-select/isst-config.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 2a81fb881f04..924cb871d6d2 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -2400,9 +2400,12 @@ static void parse_cmd_args(int argc, int start, char **argv)
 			}
 			break;
 		default:
-			printf("no match\n");
+			printf("Unknown option: ignore\n");
 		}
 	}
+
+	if (argv[optind])
+		printf("Garbage at the end of command: ignore\n");
 }
 
 static void isst_help(void)
-- 
2.24.1