Re: [PATCH V3 net-next 1/8] net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC

From: Andrew Lunn
Date: Sat Jun 17 2017 - 13:54:29 EST


> +static int hns3_nic_net_up(struct net_device *ndev)
> +{
> + struct hns3_nic_priv *priv = netdev_priv(ndev);
> + struct hnae3_handle *h = priv->ae_handle;
> + int i, j;
> + int ret;
> +
> + ret = hns3_nic_init_irq(priv);
> + if (ret != 0) {

if (ret)

No need to compare with zero.

> + netdev_err(ndev, "hns init irq failed! ret=%d\n", ret);
> + return ret;

> +static int hns3_nic_net_open(struct net_device *ndev)
> +{
> + struct hns3_nic_priv *priv = netdev_priv(ndev);
> + struct hnae3_handle *h = priv->ae_handle;
> + int ret;
> +
> + netif_carrier_off(ndev);
> +
> + ret = netif_set_real_num_tx_queues(ndev, h->kinfo.num_tqps);
> + if (ret < 0) {
> + netdev_err(ndev, "netif_set_real_num_tx_queues fail, ret=%d!\n",
> + ret);
> + return ret;
> + }

In general, functions return 0 for success, and something else for an
error. So there is no need to do a comparison. Please remove all
comparisons, unless it is really needed. It also makes the code look
consistent. At the moment you sometime have < 0, sometime !=0, and
sometimes no comparison at all.

Andrew