Re: [net PATCH] atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring

Eric Dumazet
2013-07-29T00:26:34Z

On Mon, 2013-07-29 at 01:07 +0100, Ben Hutchings wrote:

> 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.

I don't know, maybe the remapping doesn't work if area splits several
pages ?

I mean, why bouncing memory if we can allocate in the right zone in the
first place ?