Thanks to Justin Palermo, there is a patch for VMware 12 vmmon and vmnet problems he identified with the later Kernel 4.6-rcs. See comments on my earlier 4.6-rc1 article for details: http://rglinuxtech.com/?p=1679
I have applied the patch to VMware 12.1.0, on Kernel 4.6-rc4, and VMware now compiles and runs OK..
Robert Gadsdon. April 22, 2016.