Re: [PATCH v6 8/8] macvtap/tun: cross-endian support for little-endian hosts

David Gibson
2015-05-28T04:59:38Z

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On Fri, Apr 24, 2015 at 02:50:36PM +0200, Greg Kurz wrote:
> The VNET_LE flag was introduced to fix accesses to virtio 1.0 headers
> that are always little-endian. It can also be used to handle the special
> case of a legacy little-endian device implemented by a big-endian host.
>
> Let's add a flag and ioctls for big-endian devices as well. If both flags
> are set, little-endian wins.
>
> Since this is isn't a common usecase, the feature is controlled by a kernel
> config option (not set by default).
>
> Both macvtap and tun are covered by this patch since they share the same
> API with userland.
>
> Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson

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