From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [net PATCH] atl1c: Fix misuse of netdev_alloc_skb in refilling
 rx ring
Date: Sun, 28 Jul 2013 17:21:38 -0700 (PDT)
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From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 29 Jul 2013 01:07:18 +0100

> Just like many older PCI/PCIe devices.  So what?  pci_map_single() takes
> care of that, just so long as the driver sets the DMA mask correctly.
> In fact, PCI devices have a 32-bit DMA mask by default.

Right, the DMA API should be taking care of this.