[Qemu-block] [PATCH v7 02/12] uuid: Make null_uuid static

[Fam Zheng]

So that it doesn't have to be zeroed at each call.

Suggested-by: Eric Blake <ebl...@redhat.com>
Signed-off-by: Fam Zheng <f...@redhat.com>
---
 util/uuid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/uuid.c b/util/uuid.c
index 08a7fd3..2e47f4a 100644
--- a/util/uuid.c
+++ b/util/uuid.c
@@ -40,7 +40,7 @@ void qemu_uuid_generate(QemuUUID *uuid)
 
 int qemu_uuid_is_null(const QemuUUID *uu)
 {
-    QemuUUID null_uuid = { 0 };
+    static QemuUUID null_uuid;
     return memcmp(uu, &null_uuid, sizeof(QemuUUID)) == 0;
 }
 
-- 
2.7.4