modprobe knows the keyword 'blacklist' in modprobe.conf. But it is missing in
current manpage. The sgml files in source package are up to date, but are not
converted to manpage, due to a sgml bug. I attach a fix for that.

Further if there is a blacklist entry for a module, then modprobe reports:
   FATAL: module <modalias> not found
But that is not true. It did found the right alias line and a module, but thte
module is blacklisted. Therfore i attach another patch, that writes an additional
   WARNING: module <module> is blacklisted
whenever an blacklist entry hits.

So far the bug. Please fix that for SL 10.0, because this are non intrusive changes.

Now the enhancment:

With that changes we could get rid of /etc/hotplug/blacklist and add a
/etc/modprobe.blacklist. Or add it to modprobe.conf. Or modprobe.d/blacklist.
BTW: Our current blacklist has about 200 entries.