[PATCH net-next v3 4/7] net: rpmsg-eth: Add netdev ops

[Anwar, Md Danish]

Hi Parthiban

On 9/9/2025 12:08 PM, Parthiban.Veerasooran at microchip.com wrote:
> Hi,
> 
> On 08/09/25 2:37 pm, MD Danish Anwar wrote:
> 
>> +static int create_request(struct rpmsg_eth_common *common,
>> +                         enum rpmsg_eth_rpmsg_type rpmsg_type)
>> +{
>> +       struct message *msg = &common->send_msg;
>> +       int ret = 0;
>> +
>> +       msg->msg_hdr.src_id = common->port->port_id;
>> +       msg->req_msg.type = rpmsg_type;
>> +
>> +       switch (rpmsg_type) {
>> +       case RPMSG_ETH_REQ_SHM_INFO:
>> +               msg->msg_hdr.msg_type = RPMSG_ETH_REQUEST_MSG;
>> +               break;
>> +       case RPMSG_ETH_REQ_SET_MAC_ADDR:
>> +               msg->msg_hdr.msg_type = RPMSG_ETH_REQUEST_MSG;
>> +               ether_addr_copy(msg->req_msg.mac_addr.addr,
>> +                               common->port->ndev->dev_addr);
>> +               break;
>> +       case RPMSG_ETH_NOTIFY_PORT_UP:
>> +       case RPMSG_ETH_NOTIFY_PORT_DOWN:
>> +               msg->msg_hdr.msg_type = RPMSG_ETH_NOTIFY_MSG;
>> +               break;
>> +       default:
>> +               ret = -EINVAL;
>> +               dev_err(common->dev, "Invalid RPMSG request\n");
> I don't think you need 'ret' here instead directly return -EINVAL and 
> above 'ret' declaration can be removed.
>> +       }
>> +       return ret;
> can be return 0;

Sure. I will drop ret.

>> +}
>> +
>> +static int rpmsg_eth_create_send_request(struct rpmsg_eth_common *common,
>> +                                        enum rpmsg_eth_rpmsg_type rpmsg_type,
>> +                                        bool wait)
>> +{
>> +       unsigned long flags;
>> +       int ret = 0;
> No need to initialize.

Sure. Will drop this.

>> +
>> +       if (wait)
>> +               reinit_completion(&common->sync_msg);
>> +
>> +       spin_lock_irqsave(&common->send_msg_lock, flags);
>> +
>> +static int rpmsg_eth_set_mac_address(struct net_device *ndev, void *addr)
>> +{
>> +       struct rpmsg_eth_common *common = rpmsg_eth_ndev_to_common(ndev);
>> +       int ret;
>> +
>> +       ret = eth_mac_addr(ndev, addr);
>> +
>> +       if (ret < 0)
>> +               return ret;
>> +       ret = rpmsg_eth_create_send_request(common, RPMSG_ETH_REQ_SET_MAC_ADDR, false);
> You can directly return from here.

Sure.

>> +       return ret;
>> +}
>> +
> Best regards,
> Parthiban V

-- 
Thanks and Regards,
Md Danish Anwar