Re: [PATCH v2 1/4] virtio_net: Modify virtio_net_get_config to early return

2022-11-29 Thread Jason Wang
On Fri, Nov 25, 2022 at 1:33 AM Eugenio Pérez  wrote:
>
> Next patches introduce more code on vhost-vdpa branch, with already have
> too much indentation.
>
> Signed-off-by: Eugenio Pérez 
> Reviewed-by: Philippe Mathieu-Daudé 
> Reviewed-by: Michael S. Tsirkin 

Acked-by: Jason Wang 

Thanks

> ---
>  hw/net/virtio-net.c | 28 +++-
>  1 file changed, 15 insertions(+), 13 deletions(-)
>
> diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
> index aba12759d5..eed629766f 100644
> --- a/hw/net/virtio-net.c
> +++ b/hw/net/virtio-net.c
> @@ -168,20 +168,22 @@ static void virtio_net_get_config(VirtIODevice *vdev, 
> uint8_t *config)
>  if (nc->peer && nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
>  ret = vhost_net_get_config(get_vhost_net(nc->peer), (uint8_t 
> *),
> n->config_size);
> -if (ret != -1) {
> -/*
> - * Some NIC/kernel combinations present 0 as the mac address.  As
> - * that is not a legal address, try to proceed with the
> - * address from the QEMU command line in the hope that the
> - * address has been configured correctly elsewhere - just not
> - * reported by the device.
> - */
> -if (memcmp(, , sizeof(zero)) == 0) {
> -info_report("Zero hardware mac address detected. Ignoring.");
> -memcpy(netcfg.mac, n->mac, ETH_ALEN);
> -}
> -memcpy(config, , n->config_size);
> +if (ret == -1) {
> +return;
>  }
> +
> +/*
> + * Some NIC/kernel combinations present 0 as the mac address.  As 
> that
> + * is not a legal address, try to proceed with the address from the
> + * QEMU command line in the hope that the address has been configured
> + * correctly elsewhere - just not reported by the device.
> + */
> +if (memcmp(, , sizeof(zero)) == 0) {
> +info_report("Zero hardware mac address detected. Ignoring.");
> +memcpy(netcfg.mac, n->mac, ETH_ALEN);
> +}
> +
> +memcpy(config, , n->config_size);
>  }
>  }
>
> --
> 2.31.1
>




[PATCH v2 1/4] virtio_net: Modify virtio_net_get_config to early return

2022-11-24 Thread Eugenio Pérez
Next patches introduce more code on vhost-vdpa branch, with already have
too much indentation.

Signed-off-by: Eugenio Pérez 
Reviewed-by: Philippe Mathieu-Daudé 
Reviewed-by: Michael S. Tsirkin 
---
 hw/net/virtio-net.c | 28 +++-
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index aba12759d5..eed629766f 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -168,20 +168,22 @@ static void virtio_net_get_config(VirtIODevice *vdev, 
uint8_t *config)
 if (nc->peer && nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
 ret = vhost_net_get_config(get_vhost_net(nc->peer), (uint8_t *),
n->config_size);
-if (ret != -1) {
-/*
- * Some NIC/kernel combinations present 0 as the mac address.  As
- * that is not a legal address, try to proceed with the
- * address from the QEMU command line in the hope that the
- * address has been configured correctly elsewhere - just not
- * reported by the device.
- */
-if (memcmp(, , sizeof(zero)) == 0) {
-info_report("Zero hardware mac address detected. Ignoring.");
-memcpy(netcfg.mac, n->mac, ETH_ALEN);
-}
-memcpy(config, , n->config_size);
+if (ret == -1) {
+return;
 }
+
+/*
+ * Some NIC/kernel combinations present 0 as the mac address.  As that
+ * is not a legal address, try to proceed with the address from the
+ * QEMU command line in the hope that the address has been configured
+ * correctly elsewhere - just not reported by the device.
+ */
+if (memcmp(, , sizeof(zero)) == 0) {
+info_report("Zero hardware mac address detected. Ignoring.");
+memcpy(netcfg.mac, n->mac, ETH_ALEN);
+}
+
+memcpy(config, , n->config_size);
 }
 }
 
-- 
2.31.1