The caller callchain order is useful with --children option since it can
show 'overview' style output, but other commands which don't use
 --children feature like 'perf script' or even 'perf report/top' without
 --children are better to keep callee order.

Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Borislav Petkov <b...@suse.de>
Cc: Brendan Gregg <brendan.d.gr...@gmail.com>
Cc: Chandler Carruth <chandl...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Stephane Eranian <eran...@google.com>
Cc: Wang Nan <wangn...@huawei.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
fix typo

 tools/perf/builtin-report.c | 2 ++
 tools/perf/builtin-top.c    | 3 +++
 tools/perf/util/callchain.c | 2 ++
 tools/perf/util/callchain.h | 1 +
 tools/perf/util/util.c      | 2 +-
 5 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 18a8c52d921e..545c51cef7f7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -812,6 +812,8 @@ int cmd_report(int argc, const char **argv, const char 
*prefix __maybe_unused)
 
        if (report.inverted_callchain)
                callchain_param.order = ORDER_CALLER;
+       if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
+               callchain_param.order = ORDER_CALLER;
 
        if (itrace_synth_opts.callchain &&
            (int)itrace_synth_opts.callchain_sz > report.max_stack)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 1de381d3f29f..af849b1d7389 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1304,6 +1304,9 @@ int cmd_top(int argc, const char **argv, const char 
*prefix __maybe_unused)
                perf_hpp__cancel_cumulate();
        }
 
+       if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
+               callchain_param.order = ORDER_CALLER;
+
        symbol_conf.priv_size = sizeof(struct annotation);
 
        symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 842be32899ee..735ad48e1858 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -51,10 +51,12 @@ static int parse_callchain_order(const char *value)
 {
        if (!strncmp(value, "caller", strlen(value))) {
                callchain_param.order = ORDER_CALLER;
+               callchain_param.order_set = true;
                return 0;
        }
        if (!strncmp(value, "callee", strlen(value))) {
                callchain_param.order = ORDER_CALLEE;
+               callchain_param.order_set = true;
                return 0;
        }
        return -1;
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 836d59a001bc..aaf467c9ef2b 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -75,6 +75,7 @@ struct callchain_param {
        double                  min_percent;
        sort_chain_func_t       sort;
        enum chain_order        order;
+       bool                    order_set;
        enum chain_key          key;
        bool                    branch_callstack;
 };
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index c1bf9ff210b0..cd12c25e4ea4 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -19,7 +19,7 @@
 struct callchain_param callchain_param = {
        .mode   = CHAIN_GRAPH_ABS,
        .min_percent = 0.5,
-       .order  = ORDER_CALLER,
+       .order  = ORDER_CALLEE,
        .key    = CCKEY_FUNCTION
 };
 
-- 
2.6.0

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