From: Stefano Garzarella <sgarzare@xxxxxxxxxx> commit cf1a3b35382c10ce315c32bd2b3d7789897fbe13 upstream. As preparation for the next patches, we store the MAC address, parsed during the vdpasim_create(), in a buffer that will be used to fill 'config' together with other configurations. Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx> Link: https://lore.kernel.org/r/20201215144256.155342-11-sgarzare@xxxxxxxxxx Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -42,6 +42,8 @@ static char *macaddr; module_param(macaddr, charp, 0); MODULE_PARM_DESC(macaddr, "Ethernet MAC address"); +u8 macaddr_buf[ETH_ALEN]; + struct vdpasim_virtqueue { struct vringh vring; struct vringh_kiov iov; @@ -392,13 +394,13 @@ static struct vdpasim *vdpasim_create(st goto err_iommu; if (macaddr) { - mac_pton(macaddr, vdpasim->config.mac); - if (!is_valid_ether_addr(vdpasim->config.mac)) { + mac_pton(macaddr, macaddr_buf); + if (!is_valid_ether_addr(macaddr_buf)) { ret = -EADDRNOTAVAIL; goto err_iommu; } } else { - eth_random_addr(vdpasim->config.mac); + eth_random_addr(macaddr_buf); } for (i = 0; i < dev_attr->nvqs; i++) @@ -532,6 +534,8 @@ static int vdpasim_set_features(struct v config->mtu = cpu_to_vdpasim16(vdpasim, 1500); config->status = cpu_to_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP); + memcpy(config->mac, macaddr_buf, ETH_ALEN); + return 0; }
