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path: root/drivers/iommu/intel/perf.c
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Diffstat (limited to 'drivers/iommu/intel/perf.c')
-rw-r--r--drivers/iommu/intel/perf.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/iommu/intel/perf.c b/drivers/iommu/intel/perf.c
index adc4de6bbd88..dceeadc3ee7c 100644
--- a/drivers/iommu/intel/perf.c
+++ b/drivers/iommu/intel/perf.c
@@ -113,7 +113,7 @@ static char *latency_type_names[] = {
" svm_prq"
};
-int dmar_latency_snapshot(struct intel_iommu *iommu, char *str, size_t size)
+void dmar_latency_snapshot(struct intel_iommu *iommu, char *str, size_t size)
{
struct latency_statistic *lstat = iommu->perf_statistic;
unsigned long flags;
@@ -122,7 +122,7 @@ int dmar_latency_snapshot(struct intel_iommu *iommu, char *str, size_t size)
memset(str, 0, size);
for (i = 0; i < COUNTS_NUM; i++)
- bytes += snprintf(str + bytes, size - bytes,
+ bytes += scnprintf(str + bytes, size - bytes,
"%s", latency_counter_names[i]);
spin_lock_irqsave(&latency_lock, flags);
@@ -130,7 +130,7 @@ int dmar_latency_snapshot(struct intel_iommu *iommu, char *str, size_t size)
if (!dmar_latency_enabled(iommu, i))
continue;
- bytes += snprintf(str + bytes, size - bytes,
+ bytes += scnprintf(str + bytes, size - bytes,
"\n%s", latency_type_names[i]);
for (j = 0; j < COUNTS_NUM; j++) {
@@ -156,11 +156,9 @@ int dmar_latency_snapshot(struct intel_iommu *iommu, char *str, size_t size)
break;
}
- bytes += snprintf(str + bytes, size - bytes,
+ bytes += scnprintf(str + bytes, size - bytes,
"%12lld", val);
}
}
spin_unlock_irqrestore(&latency_lock, flags);
-
- return bytes;
}