K 10
svn:author
V 7
delphij
K 8
svn:date
V 27
2011-11-15T17:42:00.192261Z
K 7
svn:log
V 307
MFC r227409:

Do a dummy read to flush the interrupt ACK that we just performed,
ensuring that everything is really, truly consistent.

This fixes certain cases where one will see various:
  mfi0: COMMAND 0xffffffXXXXXXXXXX TIMEOUT AFTER XX SECONDS

Submitted by:	scottl
Ok'ed by:	jhb
Approved by:	re (kib)

END