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-rw-r--r--kernel/tools/perf/util/xyarray.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/tools/perf/util/xyarray.c b/kernel/tools/perf/util/xyarray.c
index 22afbf6c5..c10ba41ef 100644
--- a/kernel/tools/perf/util/xyarray.c
+++ b/kernel/tools/perf/util/xyarray.c
@@ -9,11 +9,19 @@ struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size)
if (xy != NULL) {
xy->entry_size = entry_size;
xy->row_size = row_size;
+ xy->entries = xlen * ylen;
}
return xy;
}
+void xyarray__reset(struct xyarray *xy)
+{
+ size_t n = xy->entries * xy->entry_size;
+
+ memset(xy->contents, 0, n);
+}
+
void xyarray__delete(struct xyarray *xy)
{
free(xy);