perf cs-etm: Print unknown header version as an error

This is an error rather than just for the raw trace dump so always print
it as an error. Also remove the duplicate header version check.

Signed-off-by: James Clark <[email protected]>
Cc: Al Grant <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: James-A-Clark

tools/perf/util/cs-etm.c

@@ -2623,14 +2623,7 @@ static void cs_etm__print_auxtrace_info(__u64 *val, int num)
 {
 	int i, cpu = 0, version, err;
 
-	/* bail out early on bad header version */
 	version = val[0];
-	if (version > CS_HEADER_CURRENT_VERSION) {
-		/* failure.. return */
-		fprintf(stdout, "	Unknown Header Version = %x, ", version);
-		fprintf(stdout, "Version supported <= %x\n", CS_HEADER_CURRENT_VERSION);
-		return;
-	}
 
 	for (i = 0; i < CS_HEADER_VERSION_MAX; i++)
 		fprintf(stdout, cs_etm_global_header_fmts[i], val[i]);
@@ -2916,9 +2909,8 @@ int cs_etm__process_auxtrace_info(union perf_event *event,
 	/* Look for version of the header */
 	hdr_version = ptr[0];
 	if (hdr_version > CS_HEADER_CURRENT_VERSION) {
-		/* print routine will print an error on bad version */
-		if (dump_trace)
-			cs_etm__print_auxtrace_info(auxtrace_info->priv, 0);
+		pr_err("\nCS ETM Trace: Unknown Header Version = %#" PRIx64, hdr_version);
+		pr_err(", version supported <= %x\n", CS_HEADER_CURRENT_VERSION);
 		return -EINVAL;
 	}