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-rw-r--r--tools/perf/builtin-diff.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 3f86737da2c4..ae8f62151b34 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -390,6 +390,15 @@ static void perf_evlist__collapse_resort(struct perf_evlist *evlist)
}
}
+static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt)
+{
+ struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt);
+ void *ptr = dfmt - dfmt->idx;
+ struct data__file *d = container_of(ptr, struct data__file, fmt);
+
+ return d;
+}
+
static struct hist_entry*
get_pair_data(struct hist_entry *he, struct data__file *d)
{
@@ -407,8 +416,7 @@ get_pair_data(struct hist_entry *he, struct data__file *d)
static struct hist_entry*
get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt)
{
- void *ptr = dfmt - dfmt->idx;
- struct data__file *d = container_of(ptr, struct data__file, fmt);
+ struct data__file *d = fmt_to_data_file(&dfmt->fmt);
return get_pair_data(he, d);
}