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Date:	Sun, 22 Nov 2015 11:17:13 +0000
From:	Yuval Mintz <Yuval.Mintz@...gic.com>
To:	Salil Mehta <salil.mehta@...wei.com>,
	David Miller <davem@...emloft.net>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"pawel.moll@....com" <pawel.moll@....com>,
	"mark.rutland@....com" <mark.rutland@....com>,
	"paul.gortmaker@...driver.com" <paul.gortmaker@...driver.com>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"galak@...eaurora.org" <galak@...eaurora.org>,
	"catalin.marinas@....com" <catalin.marinas@....com>,
	"will.deacon@....com" <will.deacon@....com>,
	"arnd@...db.de" <arnd@...db.de>,
	"liguozhu@...ilicon.com" <liguozhu@...ilicon.com>,
	"yisen.zhuang@...wei.com" <yisen.zhuang@...wei.com>,
	"dingtianhong@...wei.com" <dingtianhong@...wei.com>,
	"zhangfei.gao@...aro.org" <zhangfei.gao@...aro.org>,
	"huangdaode@...ilicon.com" <huangdaode@...ilicon.com>,
	"kenneth-lee-2012@...mail.com" <kenneth-lee-2012@...mail.com>,
	"mehta.salil.lnk@...il.com" <mehta.salil.lnk@...il.com>,
	"xuwei5@...ilicon.com" <xuwei5@...ilicon.com>,
	"lisheng011@...wei.com" <lisheng011@...wei.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	netdev <netdev@...r.kernel.org>,
	"linuxarm@...wei.com" <linuxarm@...wei.com>
Subject: RE: [PATCH V4 net-next 4/5] net:hns: Add support of ethtool TSO set
 option for Hip06 in HNS

> +static netdev_features_t hns_nic_fix_features(
> +		struct net_device *netdev, netdev_features_t features) {
> +	struct hns_nic_priv *priv = netdev_priv(netdev);
> +
> +	switch (priv->enet_ver) {
> +	case AE_VERSION_1:
> +		features &= ~(NETIF_F_TSO | NETIF_F_TSO6 |
> +				NETIF_F_HW_VLAN_CTAG_FILTER);
> +		break;
> +	default:
> +		break;
> +	}
> +	return features;
> +}
> +

Isn't AE_VERSION_1 something fixed once you publish your features?
If it can't be changed, why not simply remove the features from
`hw_features' instead of having to implement this ndo?
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