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authorEric Blake <eblake@redhat.com>2016-03-03 09:16:50 -0700
committerMarkus Armbruster <armbru@redhat.com>2016-03-05 10:41:58 +0100
commit10f759079e616a1cc4701fc26ab5e2a048ce912c (patch)
tree1e872b30b130809f08d0cb4935324acacde67e21 /blockdev.c
parentb5a1b443183f56e0b9ad0f72614bdff7ace780d5 (diff)
qapi: Avoid use of 'data' member of QAPI unions
QAPI code generators currently create a 'void *data' member as part of the anonymous union embedded in the C struct corresponding to a QAPI union. However, directly assigning to this member of the union feels a bit fishy, when we can assign to another member of the struct instead. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1457021813-10704-9-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/blockdev.c b/blockdev.c
index d4bc435940..0f20c6511f 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1202,15 +1202,11 @@ void hmp_commit(Monitor *mon, const QDict *qdict)
}
}
-static void blockdev_do_action(TransactionActionKind type, void *data,
- Error **errp)
+static void blockdev_do_action(TransactionAction *action, Error **errp)
{
- TransactionAction action;
TransactionActionList list;
- action.type = type;
- action.u.data = data;
- list.value = &action;
+ list.value = action;
list.next = NULL;
qmp_transaction(&list, false, NULL, errp);
}
@@ -1236,8 +1232,11 @@ void qmp_blockdev_snapshot_sync(bool has_device, const char *device,
.has_mode = has_mode,
.mode = mode,
};
- blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC,
- &snapshot, errp);
+ TransactionAction action = {
+ .type = TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC,
+ .u.blockdev_snapshot_sync = &snapshot,
+ };
+ blockdev_do_action(&action, errp);
}
void qmp_blockdev_snapshot(const char *node, const char *overlay,
@@ -1247,9 +1246,11 @@ void qmp_blockdev_snapshot(const char *node, const char *overlay,
.node = (char *) node,
.overlay = (char *) overlay
};
-
- blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT,
- &snapshot_data, errp);
+ TransactionAction action = {
+ .type = TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT,
+ .u.blockdev_snapshot = &snapshot_data,
+ };
+ blockdev_do_action(&action, errp);
}
void qmp_blockdev_snapshot_internal_sync(const char *device,
@@ -1260,9 +1261,11 @@ void qmp_blockdev_snapshot_internal_sync(const char *device,
.device = (char *) device,
.name = (char *) name
};
-
- blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC,
- &snapshot, errp);
+ TransactionAction action = {
+ .type = TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC,
+ .u.blockdev_snapshot_internal_sync = &snapshot,
+ };
+ blockdev_do_action(&action, errp);
}
SnapshotInfo *qmp_blockdev_snapshot_delete_internal_sync(const char *device,