From: John Garry john.garry@huawei.com
mainline inclusion from mainline-v5.10-rc6 commit 5806099a2e2a category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I63VF5 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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Calling pmu_is_uncore() for fake PMUs does not work, as it checks sysfs for the PMU details (which won't exist).
Check .is_uncore field instead, which makes sense anyway.
Signed-off-by: John Garry john.garry@huawei.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Ian Rogers irogers@google.com Cc: Ingo Molnar mingo@redhat.com Cc: Jin Yao yao.jin@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: Mark Rutland mark.rutland@arm.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: linuxarm@huawei.com Link: https //lore.kernel.org/r/1627566986-30605-7-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Junhao He hejunhao3@huawei.com --- tools/perf/util/pmu.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 8550b3d036d5..57093e5c5507 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -831,8 +831,7 @@ void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu, break; }
- if (pmu_is_uncore(name) && - pmu_uncore_alias_match(pname, name)) + if (pmu->is_uncore && pmu_uncore_alias_match(pname, name)) goto new_alias;
if (strcmp(pname, name))