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

> -----Original Message-----
> From: Andrew Lunn [mailto:andrew@lunn.ch]
> Sent: Saturday, June 17, 2017 6:54 PM
> To: Salil Mehta
> Cc: davem@davemloft.net; Zhuangyuzeng (Yisen); huangdaode; lipeng (Y);
> mehta.salil.lnk@gmail.com; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; Linuxarm
> Subject: Re: [PATCH V3 net-next 1/8] net: hns3: Add support of HNS3
> Ethernet Driver for hip08 SoC
>
> > +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.
Sure, changed in V4 patch.

Thanks
Salil
>
> > + 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.
Acknowledged, scanned and have changed in V4 patch. Please have a look.

Thanks
Salil
>
> Andrew

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