From 73bcaef3490ce5421afd93a24ffb70a5a5c6fc22 Mon Sep 17 00:00:00 2001
From: Dan Mick <dan.mick@redhat.com>
Date: Thu, 4 May 2017 20:15:58 -0700
Subject: [PATCH] test/librbd/test_librbd.cc: set *features even if
 RBD_FEATURES is unset

If RBD_FEATURES is not in the environment, set *features to 0 in
get_features(); callers rely on a valid return value.  (This was
breaking on arm64.)

Fixes: http://tracker.ceph.com/issues/19865
Signed-off-by: Dan Mick <dan.mick@redhat.com>
---
 src/test/librbd/test_librbd.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/test/librbd/test_librbd.cc b/src/test/librbd/test_librbd.cc
index edda51c77b4..f16fbcca2a9 100644
--- a/src/test/librbd/test_librbd.cc
+++ b/src/test/librbd/test_librbd.cc
@@ -84,6 +84,7 @@ static int get_features(bool *old_format, uint64_t *features)
     cout << "using new format!" << std::endl;
   } else {
     *old_format = true;
+    *features = 0;
     cout << "using old format" << std::endl;
   }