2933 compiler warning gags need better granularity
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

6813803 Solaris needs SAS 2.0 MegaRAID mr_sas driver on Sparc
6807251 mr_sas driver should support PCI-E relaxed ordering
6840379 mr_sas driver should have an mdb module