[ofw] OpenSM and IB_PORT_CAP_IS_SM

[Sean Hefty]

>I see in the OpenSM code that it sets the IS_SM port capability bit.  I didn't
>see anywhere that it would get cleared when exiting (normally or abnormally.)
>I would expect IBAL to keep track of what bits a user-mode client set, and
>clear them when that user-mode client goes away.  Is there any such code, and
>is it just broken, or is that functionality not there at all?

See WmRegRemoveHandler() in the WinMAD kernel driver.  :)