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qapi: Use QAPI_LIST_PREPEND() where possible

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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>
This commit is contained in:
Eric Blake 2020-11-12 19:13:37 -06:00 • committed by Markus Armbruster
parent eaedde5255
commit 54aa3de72e
32 changed files with 158 additions and 421 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hw/core/machine-qmp-cmds.c
View file

@ -215,7 +215,6 @@ MachineInfoList *qmp_query_machines(Error **errp)
for (el = machines; el; el = el->next) {
MachineClass *mc = el->data;
MachineInfoList *entry;
MachineInfo *info;
info = g_malloc0(sizeof(*info));
@ -243,10 +242,7 @@ MachineInfoList *qmp_query_machines(Error **errp)
info->has_default_ram_id = true;
}
entry = g_malloc0(sizeof(*entry));
entry->value = info;
entry->next = mach_list;
mach_list = entry;
QAPI_LIST_PREPEND(mach_list, info);
}
g_slist_free(machines);