perf cs-etm: Reduce verbosity of ts_source warning

This is printed as a warning but it is normal behavior that users
shouldn't be expected to do anything about. Reduce the warning level to
debug3 so it's only seen in verbose mode to avoid confusion.

Reviewed-by: Leo Yan <leo.yan@linaro.org
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Al Grant <al.grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230308094843.287093-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index 7f71c8a..59b50dd 100644 (file)
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -694,8 +694,8 @@ static void cs_etm_save_etmv4_header(__u64 data[], struct auxtrace_record *itr,
                data[CS_ETMV4_TS_SOURCE] = (__u64) cs_etm_get_ro_signed(cs_etm_pmu, cpu,
                                metadata_etmv4_ro[CS_ETMV4_TS_SOURCE]);
        else {
-               pr_warning("[%03d] pmu file 'ts_source' not found. Fallback to safe value (-1)\n",
-                          cpu);
+               pr_debug3("[%03d] pmu file 'ts_source' not found. Fallback to safe value (-1)\n",
+                         cpu);
                data[CS_ETMV4_TS_SOURCE] = (__u64) -1;
        }
 }
@@ -729,8 +729,8 @@ static void cs_etm_save_ete_header(__u64 data[], struct auxtrace_record *itr, in
                data[CS_ETE_TS_SOURCE] = (__u64) cs_etm_get_ro_signed(cs_etm_pmu, cpu,
                                metadata_ete_ro[CS_ETE_TS_SOURCE]);
        else {
-               pr_warning("[%03d] pmu file 'ts_source' not found. Fallback to safe value (-1)\n",
-                          cpu);
+               pr_debug3("[%03d] pmu file 'ts_source' not found. Fallback to safe value (-1)\n",
+                         cpu);
                data[CS_ETE_TS_SOURCE] = (__u64) -1;
        }
 }