qemu-kvm/SOURCES/kvm-qobject-Use-qobject_to-...

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From 901ef4e58539427f6a26e134d915e02db0fd0df3 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Mon, 18 Jun 2018 08:43:08 +0200
Subject: [PATCH 010/268] qobject: Use qobject_to() instead of type cast
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RH-Author: Markus Armbruster <armbru@redhat.com>
Message-id: <20180618084330.30009-2-armbru@redhat.com>
Patchwork-id: 80732
O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 01/23] qobject: Use qobject_to() instead of type cast
Bugzilla: 1557995
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
The proper way to convert from (abstract) QObject to a (concrete)
subtype is qobject_to(). Look for offenders that type cast instead:
$ git-grep '(Q[A-Z][a-z]* \*)'
hmp.c: qmp_device_add((QDict *)qdict, NULL, &err);
include/qapi/qmp/qobject.h: return (QObject *)obj;
qobject/qobject.c:static void (*qdestroy[QTYPE__MAX])(QObject *) = {
tests/check-qdict.c: dst = (QDict *)qdict_crumple(src, &error_abort);
The first two cast away const, the third isn't a type cast. Fix the
fourth.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180426152805.8469-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
(cherry picked from commit 46cfbf13b06d551072ed17fbfca67c103edf814f)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
tests/check-qdict.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/check-qdict.c b/tests/check-qdict.c
index 2e73c2f..08d4303 100644
--- a/tests/check-qdict.c
+++ b/tests/check-qdict.c
@@ -657,7 +657,7 @@ static void qdict_crumple_test_empty(void)
src = qdict_new();
- dst = (QDict *)qdict_crumple(src, &error_abort);
+ dst = qobject_to(QDict, qdict_crumple(src, &error_abort));
g_assert_cmpint(qdict_size(dst), ==, 0);
--
1.8.3.1