Normally the callchain_param.record_mode is used only for record path.
But as it might need to prepare something for dwarf unwinding, setup
this info for perf report too.

Cc: Jiri Olsa <jo...@redhat.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Jean Pihet <jean.pi...@linaro.org>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
 tools/perf/builtin-report.c     | 6 ++++++
 tools/perf/tests/dwarf-unwind.c | 3 +++
 tools/perf/util/callchain.h     | 2 ++
 tools/perf/util/hist.h          | 2 --
 4 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ac145fae0521..495168e73d4a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -257,6 +257,12 @@ static int report__setup_sample_type(struct report *rep)
                }
        }
 
+       if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
+               if (sample_type & PERF_SAMPLE_REGS_USER)
+                       callchain_param.record_mode = CALLCHAIN_DWARF;
+               else
+                       callchain_param.record_mode = CALLCHAIN_FP;
+       }
        return 0;
 }
 
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 96adb730b744..fc25e57f4a5d 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -9,6 +9,7 @@
 #include "perf_regs.h"
 #include "map.h"
 #include "thread.h"
+#include "callchain.h"
 
 static int mmap_handler(struct perf_tool *tool __maybe_unused,
                        union perf_event *event,
@@ -120,6 +121,8 @@ int test__dwarf_unwind(void)
                return -1;
        }
 
+       callchain_param.record_mode = CALLCHAIN_DWARF;
+
        if (init_live_machine(machine)) {
                pr_err("Could not init machine\n");
                goto out;
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 2a1f5a46543a..94cfefddf4db 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -65,6 +65,8 @@ struct callchain_param {
        enum chain_key          key;
 };
 
+extern struct callchain_param callchain_param;
+
 struct callchain_list {
        u64                     ip;
        struct map_symbol       ms;
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 8c9c70e18cbb..ac1ee82c6c7e 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -8,8 +8,6 @@
 #include "color.h"
 #include "ui/progress.h"
 
-extern struct callchain_param callchain_param;
-
 struct hist_entry;
 struct addr_location;
 struct symbol;
-- 
2.1.0

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