qapi: Use QAPI_LIST_PREPEND() where possible
Anywhere we create a list of just one item or by prepending items
(typically because order doesn't matter), we can use
QAPI_LIST_PREPEND(). But places where we must keep the list in order
by appending remain open-coded until later patches.
Note that as a side effect, this also performs a cleanup of two minor
issues in qga/commands-posix.c: the old code was performing
new = g_malloc0(sizeof(*ret));
which 1) is confusing because you have to verify whether 'new' and
'ret' are variables with the same type, and 2) would conflict with C++
compilation (not an actual problem for this file, but makes
copy-and-paste harder).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201113011340.463563-5-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
[Straightforward conflicts due to commit a8aa94b5f8 "qga: update
schema for guest-get-disks 'dependents' field" and commit a10b453a52
"target/mips: Move mips_cpu_add_definition() from helper.c to cpu.c"
resolved. Commit message tweaked.]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 65d8ff4..73b79df 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -1255,7 +1255,8 @@
const char *cap = qdict_get_str(qdict, "capability");
bool state = qdict_get_bool(qdict, "state");
Error *err = NULL;
- MigrationCapabilityStatusList *caps = g_malloc0(sizeof(*caps));
+ MigrationCapabilityStatusList *caps = NULL;
+ MigrationCapabilityStatus *value;
int val;
val = qapi_enum_parse(&MigrationCapability_lookup, cap, -1, &err);
@@ -1263,14 +1264,14 @@
goto end;
}
- caps->value = g_malloc0(sizeof(*caps->value));
- caps->value->capability = val;
- caps->value->state = state;
- caps->next = NULL;
+ value = g_malloc0(sizeof(*value));
+ value->capability = val;
+ value->state = state;
+ QAPI_LIST_PREPEND(caps, value);
qmp_migrate_set_capabilities(caps, &err);
+ qapi_free_MigrationCapabilityStatusList(caps);
end:
- qapi_free_MigrationCapabilityStatusList(caps);
hmp_handle_error(mon, err);
}