Define bio_imask to allow the ncr driver to compile. The idea of passing

mask address around when registering interrupts is wrong IMHO.  We should
use a priority level like IPL_BIO and the lower levels can then translate
it into a mask if they want.

sys/alpha/alpha/ipl_funcs.c

@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ipl_funcs.c,v 1.1 1998/06/10 10:52:49 dfr Exp $
+ *	$Id: ipl_funcs.c,v 1.2 1998/06/11 11:51:26 dfr Exp $
  */
 
 #include <sys/types.h>
@@ -32,6 +32,8 @@
 #include <machine/cpu.h>
 #include <net/netisr.h>
 
+unsigned int bio_imask;		/* XXX */
+
 unsigned int netisr;
 void	(*netisrs[32]) __P((void));
 u_int64_t ipending;