Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-01-28' into staging

QAPI patches patches for 2021-01-28

# gpg: Signature made Thu 28 Jan 2021 07:10:21 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2021-01-28:
  qapi: More complex uses of QAPI_LIST_APPEND
  qapi: Use QAPI_LIST_APPEND in trivial cases
  qapi: Introduce QAPI_LIST_APPEND
  qapi: A couple more QAPI_LIST_PREPEND() stragglers
  net: Clarify early exit condition

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 7 insertions, 30 deletions

diff --git a/block/qapi.c b/block/qapi.c
index 0ca206f559..0a96099e36 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -198,7 +198,7 @@ int bdrv_query_snapshot_info_list(BlockDriverState *bs,
 {
     int i, sn_count;
     QEMUSnapshotInfo *sn_tab = NULL;
-    SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL;
+    SnapshotInfoList *head = NULL, **tail = &head;
     SnapshotInfo *info;
 
     sn_count = bdrv_snapshot_list(bs, &sn_tab);
@@ -233,17 +233,7 @@ int bdrv_query_snapshot_info_list(BlockDriverState *bs,
         info->icount        = sn_tab[i].icount;
         info->has_icount    = sn_tab[i].icount != -1ULL;
 
-        info_list = g_new0(SnapshotInfoList, 1);
-        info_list->value = info;
-
-        /* XXX: waiting for the qapi to support qemu-queue.h types */
-        if (!cur_item) {
-            head = cur_item = info_list;
-        } else {
-            cur_item->next = info_list;
-            cur_item = info_list;
-        }
-
+        QAPI_LIST_APPEND(tail, info);
     }
 
     g_free(sn_tab);
@@ -418,17 +408,12 @@ static uint64List *uint64_list(uint64_t *list, int size)
 {
     int i;
     uint64List *out_list = NULL;
-    uint64List **pout_list = &out_list;
+    uint64List **tail = &out_list;
 
     for (i = 0; i < size; i++) {
-        uint64List *entry = g_new(uint64List, 1);
-        entry->value = list[i];
-        *pout_list = entry;
-        pout_list = &entry->next;
+        QAPI_LIST_APPEND(tail, list[i]);
     }
 
-    *pout_list = NULL;
-
     return out_list;
 }
 
@@ -636,26 +621,21 @@ BlockStatsList *qmp_query_blockstats(bool has_query_nodes,
                                      bool query_nodes,
                                      Error **errp)
 {
-    BlockStatsList *head = NULL, **p_next = &head;
+    BlockStatsList *head = NULL, **tail = &head;
     BlockBackend *blk;
     BlockDriverState *bs;
 
     /* Just to be safe if query_nodes is not always initialized */
     if (has_query_nodes && query_nodes) {
         for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) {
-            BlockStatsList *info = g_malloc0(sizeof(*info));
             AioContext *ctx = bdrv_get_aio_context(bs);
 
             aio_context_acquire(ctx);
-            info->value = bdrv_query_bds_stats(bs, false);
+            QAPI_LIST_APPEND(tail, bdrv_query_bds_stats(bs, false));
             aio_context_release(ctx);
-
-            *p_next = info;
-            p_next = &info->next;
         }
     } else {
         for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) {
-            BlockStatsList *info;
             AioContext *ctx = blk_get_aio_context(blk);
             BlockStats *s;
             char *qdev;
@@ -680,10 +660,7 @@ BlockStatsList *qmp_query_blockstats(bool has_query_nodes,
             bdrv_query_blk_stats(s->stats, blk);
             aio_context_release(ctx);
 
-            info = g_malloc0(sizeof(*info));
-            info->value = s;
-            *p_next = info;
-            p_next = &info->next;
+            QAPI_LIST_APPEND(tail, s);
         }
     }