diff -Npru a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
--- a/tools/perf/builtin-report.c	2020-01-04 07:34:38.000000000 -0500
+++ b/tools/perf/builtin-report.c	2020-01-05 08:52:56.329061532 -0500
@@ -285,13 +285,6 @@ static int report__setup_sample_type(str
 				PERF_SAMPLE_BRANCH_ANY))
 		rep->nonany_branch_mode = true;
 
-#ifndef HAVE_LIBUNWIND_SUPPORT
-	if (dwarf_callchain_users) {
-		ui__warning("Please install libunwind development packages "
-			    "during the perf build.\n");
-	}
-#endif
-
 	return 0;
 }