From: Namhyung Kim <namhyung....@lge.com>

The commit 09600e0f9ebb ("perf tools: Compare dso's also when
comparing symbols") added a comparison of dso when comparing symbol.
But if the sort key already has dso, it doesn't need to do it again
since entries have a different dso already filtered out.

Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
 tools/perf/util/sort.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 68a4fd2f505e..635cd8f8b22e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -13,6 +13,7 @@ int           have_ignore_callees = 0;
 int            sort__need_collapse = 0;
 int            sort__has_parent = 0;
 int            sort__has_sym = 0;
+int            sort__has_dso = 0;
 enum sort_mode sort__mode = SORT_MODE__NORMAL;
 
 enum sort_type sort__first_dimension;
@@ -194,9 +195,11 @@ sort__sym_cmp(struct hist_entry *left, struct hist_entry 
*right)
         * comparing symbol address alone is not enough since it's a
         * relative address within a dso.
         */
-       ret = sort__dso_cmp(left, right);
-       if (ret != 0)
-               return ret;
+       if (!sort__has_dso) {
+               ret = sort__dso_cmp(left, right);
+               if (ret != 0)
+                       return ret;
+       }
 
        return _sort__sym_cmp(left->ms.sym, right->ms.sym);
 }
@@ -1061,6 +1064,8 @@ int sort_dimension__add(const char *tok)
                        sort__has_parent = 1;
                } else if (sd->entry == &sort_sym) {
                        sort__has_sym = 1;
+               } else if (sd->entry == &sort_dso) {
+                       sort__has_dso = 1;
                }
 
                __sort_dimension__add(sd, i);
-- 
1.7.11.7

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