Re: [Qemu-devel] [PATCH v6 3/8] virtio-net: use virtio wrappers to access headers

[Alexander Graf <agraf@suse.de>]

On 03/28/2014 11:57 AM, Greg Kurz wrote:
> From: Rusty Russell <rusty@rustcorp.com.au>
>
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
> [ use per-device needs_byteswap flag,
>    Greg Kurz <gkurz@linux.vnet.ibm.com> ]
> Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
> ---
>   hw/net/virtio-net.c |   17 ++++++++++-------
>   1 file changed, 10 insertions(+), 7 deletions(-)
>
> diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
> index 439477b..eb89f48 100644
> --- a/hw/net/virtio-net.c
> +++ b/hw/net/virtio-net.c
> @@ -23,6 +23,7 @@
>   #include "hw/virtio/virtio-bus.h"
>   #include "qapi/qmp/qjson.h"
>   #include "monitor/monitor.h"
> +#include "hw/virtio/virtio-access.h"
>   
>   #define VIRTIO_NET_VM_VERSION    11
>   
> @@ -72,8 +73,8 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
>       VirtIONet *n = VIRTIO_NET(vdev);
>       struct virtio_net_config netcfg;
>   
> -    stw_p(&netcfg.status, n->status);
> -    stw_p(&netcfg.max_virtqueue_pairs, n->max_queues);
> +    virtio_stw_p(&netcfg.status, n->status, vdev);
> +    virtio_stw_p(&netcfg.max_virtqueue_pairs, n->max_queues, vdev);

If you make virtio_stw_p() only depend on endian specific operations 
this file could be built as part of obj rather than common-obj again, 
right? So it doesn't depend on the target to operate. So as part of this 
change you should also have a Makefile.obj change.

The same obviously applies to all the other files as well :)


Alex