diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2018-06-14 17:44:31 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2018-06-27 13:01:40 +0100 |
| commit | f18793b096e69c7acfce66cded483ba9fc01762a (patch) | |
| tree | e7cd11a399bfd2f38f81d3c60a010b6a060927d4 /hw/net/virtio-net.c | |
| parent | 00928a421d47f49691cace1207481b7aad31b1f1 (diff) | |
compiler: add a sizeof_field() macro
Determining the size of a field is useful when you don't have a struct
variable handy. Open-coding this is ugly.
This patch adds the sizeof_field() macro, which is similar to
typeof_field(). Existing instances are updated to use the macro.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180614164431.29305-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/net/virtio-net.c')
| -rw-r--r-- | hw/net/virtio-net.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 90502fca7c..f154756e85 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -46,7 +46,7 @@ * 'container'. */ #define endof(container, field) \ - (offsetof(container, field) + sizeof(((container *)0)->field)) + (offsetof(container, field) + sizeof_field(container, field)) typedef struct VirtIOFeature { uint64_t flags; |