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perf/arm_cspmu: Fix event attribute type 

[ Upstream commit 71e0cb32d5 ]

ARM_CSPMU_EVENT_ATTR() defines a struct perf_pmu_events_attr, so
arm_cspmu_sysfs_event_show() should not be interpreting it as struct
dev_ext_attribute.

Fixes: e37dfd6573 ("perf: arm_cspmu: Add support for ARM CoreSight PMU driver")
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-and-tested-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/27c0804af64007b2400abbc40278f642ee6a0a29.1685983270.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Robin Murphy 2023-06-05 18:01:31 +01:00 committed by Greg Kroah-Hartman
parent ef0a178643
commit e068d5b7c5
1 changed files with 4 additions and 4 deletions
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8
drivers/perf/arm_cspmu/arm_cspmu.c
View File

@ -189,10 +189,10 @@ static inline bool use_64b_counter_reg(const struct arm_cspmu *cspmu)
ssize_t arm_cspmu_sysfs_event_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct dev_ext_attribute *eattr =
container_of(attr, struct dev_ext_attribute, attr);
return sysfs_emit(buf, "event=0x%llx\n",
(unsigned long long)eattr->var);
struct perf_pmu_events_attr *pmu_attr;
pmu_attr = container_of(attr, typeof(*pmu_attr), attr);
return sysfs_emit(buf, "event=0x%llx\n", pmu_attr->id);
}
EXPORT_SYMBOL_GPL(arm_cspmu_sysfs_event_show);