#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.
Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.
Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.
Suggested by mrg@ and martin@, and tested on SS1+ and SS20.
not device_t parent even if sbus is grandparent of the device,
otherwise (*sd_reset)() callbacks will be called with an wrong device_t.
Even in such case, sbus_establish() looks for an sbus though device tree.
XXX: (*sd_reset)() isn't called anyway, and these stuff seems really bogus.
registration of (*sd_reset)(device_t) in struct sbusdev via sbus_establish().
XXX: (*sd_reset)() in struct sbusdev seems called from only sbusreset(),
XXX: but there is no function which calls sbusreset()???