GitLab

For the initialization of a ring page by the frontend two macros are
available in ring.h: SHARED_RING_INIT() and FRONT_RING_INIT().

All known users use always both of them in direct sequence.

Add another macro XEN_FRONT_RING_INIT() combining the two macros.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>