From: Alexander Antonov alexander.antonov@linux.intel.com
Cleanup mapping procedure for IIO PMU is needed to free memory which was allocated for topology data and for attributes in IIO mapping attribute_group. Current implementation of this procedure for Snowridge and Icelake Server platforms doesn't free allocated memory that can be a reason for memory leak issue. Fix the issue with IIO cleanup mapping procedure for these platforms to release allocated memory.
Fixes: 10337e95e04c ("perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on ICX")
Signed-off-by: Alexander Antonov alexander.antonov@linux.intel.com --- arch/x86/events/intel/uncore_snbep.c | 40 +++++++++++++++++++--------- 1 file changed, 28 insertions(+), 12 deletions(-)
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index bb6eb1e5569c..54cdbb96e628 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -3836,26 +3836,32 @@ pmu_iio_set_mapping(struct intel_uncore_type *type, struct attribute_group *ag) return ret; }
-static int skx_iio_set_mapping(struct intel_uncore_type *type) -{ - return pmu_iio_set_mapping(type, &skx_iio_mapping_group); -} - -static void skx_iio_cleanup_mapping(struct intel_uncore_type *type) +static void +pmu_iio_cleanup_mapping(struct intel_uncore_type *type, struct attribute_group *ag) { - struct attribute **attr = skx_iio_mapping_group.attrs; + struct attribute **attr = ag->attrs;
if (!attr) return;
for (; *attr; attr++) kfree((*attr)->name); - kfree(attr_to_ext_attr(*skx_iio_mapping_group.attrs)); - kfree(skx_iio_mapping_group.attrs); - skx_iio_mapping_group.attrs = NULL; + kfree(attr_to_ext_attr(*ag->attrs)); + kfree(ag->attrs); + ag->attrs = NULL; kfree(type->topology); }
+static int skx_iio_set_mapping(struct intel_uncore_type *type) +{ + return pmu_iio_set_mapping(type, &skx_iio_mapping_group); +} + +static void skx_iio_cleanup_mapping(struct intel_uncore_type *type) +{ + pmu_iio_cleanup_mapping(type, &skx_iio_mapping_group); +} + static struct intel_uncore_type skx_uncore_iio = { .name = "iio", .num_counters = 4, @@ -4499,6 +4505,11 @@ static int snr_iio_set_mapping(struct intel_uncore_type *type) return pmu_iio_set_mapping(type, &snr_iio_mapping_group); }
+static void snr_iio_cleanup_mapping(struct intel_uncore_type *type) +{ + pmu_iio_cleanup_mapping(type, &snr_iio_mapping_group); +} + static struct intel_uncore_type snr_uncore_iio = { .name = "iio", .num_counters = 4, @@ -4515,7 +4526,7 @@ static struct intel_uncore_type snr_uncore_iio = { .attr_update = snr_iio_attr_update, .get_topology = snr_iio_get_topology, .set_mapping = snr_iio_set_mapping, - .cleanup_mapping = skx_iio_cleanup_mapping, + .cleanup_mapping = snr_iio_cleanup_mapping, };
static struct intel_uncore_type snr_uncore_irp = { @@ -5090,6 +5101,11 @@ static int icx_iio_set_mapping(struct intel_uncore_type *type) return pmu_iio_set_mapping(type, &icx_iio_mapping_group); }
+static void icx_iio_cleanup_mapping(struct intel_uncore_type *type) +{ + pmu_iio_cleanup_mapping(type, &icx_iio_mapping_group); +} + static struct intel_uncore_type icx_uncore_iio = { .name = "iio", .num_counters = 4, @@ -5107,7 +5123,7 @@ static struct intel_uncore_type icx_uncore_iio = { .attr_update = icx_iio_attr_update, .get_topology = icx_iio_get_topology, .set_mapping = icx_iio_set_mapping, - .cleanup_mapping = skx_iio_cleanup_mapping, + .cleanup_mapping = icx_iio_cleanup_mapping, };
static struct intel_uncore_type icx_uncore_irp = {
base-commit: 3dbdb38e286903ec220aaf1fb29a8d94297da246