uuid: Make null_uuid static

So that it doesn't have to be zeroed at each call. Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Message-Id: <1474432046-325-3-git-send-email-famz@redhat.com>
2016-09-21 12:27:15 +08:00 · 2016-09-21 12:27:15 +08:00 · 3630be75d8
parent cea25275a3
commit 3630be75d8
1 changed files with 1 additions and 1 deletions
--- 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;
 }