diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2014-12-25 16:03:27 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-12-29 10:54:54 +0200 |
| commit | b28e0506fafd9c987bba7a6a71ea02a37fcabdea (patch) | |
| tree | d106164f315a92e8894454fdf93226bff5f53d3e /drivers/misc/pch_phub.c | |
| parent | b7392d2247cfe6771f95d256374f1a8e6a6f48d6 (diff) | |
virtio_ring: document alignment requirements
Host needs to know vring element alignment requirements:
simply doing alignof on structures doesn't work reliably: on some
platforms gcc has alignof(uint32_t) == 2.
Add macros for alignment as specified in virtio 1.0 cs01,
export them to userspace as well.
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/misc/pch_phub.c')
0 files changed, 0 insertions, 0 deletions