tools/power turbostat: Exit on unsupported Intel models

Turbostat requires per-platform enabling for Intel CPU models due to
platform-specific features. When running on unsupported Intel CPU
models, turbostat currently operates with limited default features,
which can lead to users unknowingly using an outdated version of the
tool.

Enhance turbostat to exit by default when run on unsupported Intel CPU
models, with a clear message to users, informing them that their CPU
model is not supported and advising them to update to the latest version
of turbostat for full functionality.

[lenb: updated error message wording]

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index e203f109dd2e209c85d80ddb7f00896c51916504..5e894b71003c94186183344720d8a27d7609fd4b 100644 (file)
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -1079,6 +1079,10 @@ void probe_platform_features(unsigned int family, unsigned int model)
                        return;
                }
        }
+
+       fprintf(stderr, "Unsupported platform detected.\n"
+               "\tSee RUN THE LATEST VERSION on turbostat(8)\n");
+       exit(1);
 }
 
 /* Model specific support End */