Installed Kernel 3.15-rc6 on the test system, and VMware 10.0.2, and NVIDIA (337.19 and 331.79) all compile and load OK..
Brief details are here: http://lkml.iu.edu/hypermail/linux/kernel/1405.2/03755.html
$ uname -a Linux rg6830l 3.15.0-rc6 #1 SMP PREEMPT Thu May 22 12:05:07 BST 2014 x86_64 x86_64 x86_64 GNU/Linux
There will be – at least – one more -rc release, and possibly the Final after that, if all is well..
Robert Gadsdon. May 22, 2014..