perf arm64: Fix build with refcount checking

With EXTRA_CFLAGS=-DREFCNT_CHECKING=1 and build-test, some unwrapped
map accesses appear. Wrap it in the new accessor to fix the error:

  error: 'struct perf_cpu_map' has no member named 'map'

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230504160845.2065510-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/arch/arm64/util/header.c b/tools/perf/arch/arm64/util/header.c
index d730666..80b9f62 100644 (file)
--- a/tools/perf/arch/arm64/util/header.c
+++ b/tools/perf/arch/arm64/util/header.c
@@ -29,8 +29,8 @@ static int _get_cpuid(char *buf, size_t sz, struct perf_cpu_map *cpus)
                char path[PATH_MAX];
                FILE *file;
 
-               scnprintf(path, PATH_MAX, "%s/devices/system/cpu/cpu%d"MIDR,
-                               sysfs, cpus->map[cpu]);
+               scnprintf(path, PATH_MAX, "%s/devices/system/cpu/cpu%d" MIDR,
+                         sysfs, RC_CHK_ACCESS(cpus)->map[cpu].cpu);
 
                file = fopen(path, "r");
                if (!file) {

diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c
index fa143ac..ef1ed64 100644 (file)
--- a/tools/perf/arch/arm64/util/pmu.c
+++ b/tools/perf/arch/arm64/util/pmu.c
@@ -18,7 +18,7 @@ static struct perf_pmu *pmu__find_core_pmu(void)
                 * The cpumap should cover all CPUs. Otherwise, some CPUs may
                 * not support some events or have different event IDs.
                 */
-               if (pmu->cpus->nr != cpu__max_cpu().cpu)
+               if (RC_CHK_ACCESS(pmu->cpus)->nr != cpu__max_cpu().cpu)
                        return NULL;
 
                return pmu;