From 10f759079e616a1cc4701fc26ab5e2a048ce912c Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Thu, 3 Mar 2016 09:16:50 -0700 Subject: 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 Reviewed-by: Daniel P. Berrange Message-Id: <1457021813-10704-9-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster --- blockdev.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) (limited to 'blockdev.c') 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, -- cgit v1.2.3