K 10
svn:author
V 5
peter
K 8
svn:date
V 27
2000-12-26T02:22:57.000000Z
K 7
svn:log
V 622
When activating the slip interface for the first time, merge the
net and tty interrupt masks.  This is because the tty side of the
slip driver accesses data that is also used by the net side and vice versa.
This means that spltty() must block everything that can trigger network
activity (and therefore call into the slip driver on the network side),
and splimp() must block tty activity so that it doesn't call into the
slip driver on the tty side and access 'net' domain data structures.
We used to have code for this in isa.c, but this is better as it delays
the merge until the slip interface is first (if ever) used.

END