1 files changed, 4 insertions, 3 deletions

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index f3b10dcf6838..8bff543acaab 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -60,7 +60,6 @@ static int data__files_cnt;
 #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0)
 #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1)
 
-static char diff__default_sort_order[] = "dso,symbol";
 static bool force;
 static bool show_period;
 static bool show_formula;
@@ -741,7 +740,8 @@ static const struct option options[] = {
         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
                    "only consider these symbols"),
         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
-                   "sort by key(s): pid, comm, dso, symbol, parent"),
+                   "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
+                   " Please refer the man page for the complete list."),
         OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
                    "separator for columns, no spaces will be added between "
                    "columns '.' is reserved."),
@@ -1141,7 +1141,6 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
 {
         perf_config(perf_default_config, NULL);
 
-        sort_order = diff__default_sort_order;
         argc = parse_options(argc, argv, options, diff_usage, 0);
 
         if (symbol__init() < 0)
@@ -1152,6 +1151,8 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
 
         ui_init();
 
+        sort__mode = SORT_MODE__DIFF;
+
         if (setup_sorting() < 0)
                 usage_with_options(diff_usage, options);