[openib-general] [PATCH RFC] return qp pointer as part of ib_wc

[Roland Dreier]

 > > this is now returning a pointer to the MAD layer's internal QP.  I
 > > guess this is OK -- the only user of the pointer seems to be the mthca
 > > MAD_IFC command, which just grabs the QP number anyway.  But I just
 > > wanted to point out this wart...
 > 
 > What's the problem with this?

It's a bit of a layering violation -- a consumer uses the MAD layer
through the agent abstraction and so on, and then ends up getting a
pointer to the MAD layer's QP struct.

I don't think it's really a big deal but it's worth pointing out.