netdev - Re: [PATCH v1 0/4] stmmac: pci: Fix crash on Intel Galileo Gen2

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Date:   Mon, 08 May 2017 15:15:57 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     andriy.shevchenko@...ux.intel.com
Cc:     Joao.Pinto@...opsys.com, jan.kiszka@...mens.com,
        netdev@...r.kernel.org, peppe.cavallaro@...com
Subject: Re: [PATCH v1 0/4] stmmac: pci: Fix crash on Intel Galileo Gen2

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Date: Mon,  8 May 2017 17:14:18 +0300

> Due to misconfiguration of PCI driver for Intel Quark the user will get
> a kernel crash:
> 
> # udhcpc -i eth0
> udhcpc: started, v1.26.2
> stmmaceth 0000:00:14.6 eth0: device MAC address 98:4f:ee:05:ac:47
> Generic PHY stmmac-a6:01: attached PHY driver [Generic PHY] (mii_bus:phy_addr=stmmac-a6:01, irq=-1)
> stmmaceth 0000:00:14.6 eth0: IEEE 1588-2008 Advanced Timestamp supported
> stmmaceth 0000:00:14.6 eth0: registered PTP clock
> IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> 
> udhcpc: sending discover
> 
> stmmaceth 0000:00:14.6 eth0: Link is Up - 100Mbps/Full - flow control off
> IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: stmmac_xmit+0xf1/0x1080
> 
> Fix this by adding necessary settings.
> 
> P.S. I split fix to three patches according to what each of them adds.

Looks good, series applied, thanks.