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[PULL 03/12] block: Simplify QAPI_LIST_ADD

From: Eric Blake
Subject: [PULL 03/12] block: Simplify QAPI_LIST_ADD
Date: Tue, 27 Oct 2020 16:59:05 -0500

There is no need to rely on the verbosity of the gcc/clang compiler
extension of g_new(typeof(X), 1) when we can instead use the standard
g_malloc(sizeof(X)).  In general, we like g_new over g_malloc for
returning type X rather than void* to let the compiler catch more
potential typing mistakes, but in this particular macro, our other use
of typeof on the same line already ensures we are getting correct

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201027050556.269064-2-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
 block.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 430edf79bb10..857387f3912f 100644
--- a/block.c
+++ b/block.c
@@ -5231,7 +5231,7 @@ BlockDeviceInfoList *bdrv_named_nodes_list(bool flat,

 #define QAPI_LIST_ADD(list, element) do { \
-    typeof(list) _tmp = g_new(typeof(*(list)), 1); \
+    typeof(list) _tmp = g_malloc(sizeof(*(list))); \
     _tmp->value = (element); \
     _tmp->next = (list); \
     (list) = _tmp; \

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