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Date:   Fri, 11 Jan 2019 15:19:32 +0100
From:   Andrew Lunn <andrew@lunn.ch>
To:     Camelia Alexandra Groza <camelia.groza@nxp.com>
Cc:     "f.fainelli@gmail.com" <f.fainelli@gmail.com>,
        "hkallweit1@gmail.com" <hkallweit1@gmail.com>,
        "davem@davemloft.net" <davem@davemloft.net>,
        "oss@buserror.net" <oss@buserror.net>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net] net: phy: guard against accessing a NULL features
 bitmap
Message-ID: <20190111141932.GC20924@lunn.ch>
References: <1547207806-30572-1-git-send-email-camelia.groza@nxp.com>
 <20190111133730.GA1895@lunn.ch>
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> > Hi Camelia
> > 
> > A NULL features is a driver bug. So i would prefer to solve this
> > differently.
> >
> > Please make phy_driver_register() do a WARN_ON(!new_driver->features)
> > and return -EINVAL.
> 
> I wasn't aware that features are mandatory. I'll make the change.

It was not origionally, but really it should be now.

> Yes, there are five drivers that don't have features configured: BCM8706, BCM8727, CS4340, TN2020 and KSZ8873MLL.

> I'm planning to send patches on net-next for the Cortina and
> Teranetics ones at least, but fixing the generic crash was my
> priority.

O.K, will take the others.

Thanks
	Andrew