On Fri, 24 Apr 2015 14:26:24 +0200
Greg Kurz [off-list ref] wrote:

The current memory accessors logic is:
- little endian if little_endian
- native endian (i.e. no byteswap) if !little_endian

If we want to fully support cross-endian vhost, we also need to be
able to convert to big endian.

Instead of changing the little_endian argument to some 3-value enum, this
patch changes the logic to:
- little endian if little_endian
- big endian if !little_endian

The native endian case is handled by all users with a trivial helper. This
patch doesn't change any functionality, nor it does add overhead.

Signed-off-by: Greg Kurz <redacted>
---

Changes since v5:
- changed endian checking helpers as suggested by Thomas (use || and line
  breaker)

 drivers/net/macvtap.c            |    3 ++-
 drivers/net/tun.c                |    3 ++-
 drivers/vhost/vhost.h            |    3 ++-
 include/linux/virtio_byteorder.h |   24 ++++++++++++++----------
 include/linux/virtio_config.h    |    3 ++-
 include/linux/vringh.h           |    3 ++-
 6 files changed, 24 insertions(+), 15 deletions(-)

Reviewed-by: Cornelia Huck <redacted>