From: Adrian Hunter <adrian.hun...@intel.com>

commit 031c8d5edb1ddeb6d398f7942ce2a01a1a51ada9 upstream.

Using ctrl-F ('Find') would not find 'unknown' because it matches id
zero.  Fix by excluding id zero from selection.

Example:

   $ perf record -e intel_pt//u uname
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.034 MB perf.data ]
   $ perf script --itrace=bep -s 
~/libexec/perf-core/scripts/python/export-to-sqlite.py perf.data.db branches 
calls
   2020-06-26 15:32:14.928997 Creating database ...
   2020-06-26 15:32:14.933971 Writing records...
   2020-06-26 15:32:15.535251 Adding indexes
   2020-06-26 15:32:15.542993 Dropping unused tables
   2020-06-26 15:32:15.549716 Done
   $ python3 ~/libexec/perf-core/scripts/python/exported-sql-viewer.py 
perf.data.db

   Select: Reports -> Call Tree
   Press: Ctrl-F
   Enter: unknown
   Press: Enter

Before: displays 'unknown' not found
After: tree is expanded to line showing 'unknown'

Fixes: ae8b887c00d3f ("perf scripts python: exported-sql-viewer.py: Add call 
tree")
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: sta...@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200629091955.17090-6-adrian.hun...@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 tools/perf/scripts/python/exported-sql-viewer.py |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -951,7 +951,8 @@ class CallTreeModel(CallGraphModelBase):
                                                " FROM calls"
                                                " INNER JOIN call_paths ON 
calls.call_path_id = call_paths.id"
                                                " INNER JOIN symbols ON 
call_paths.symbol_id = symbols.id"
-                                               " WHERE symbols.name" + match +
+                                               " WHERE calls.id <> 0"
+                                               " AND symbols.name" + match +
                                                " ORDER BY comm_id, thread_id, 
call_time, calls.id")
 
        def FindPath(self, query):


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