Updated the test system to Kernel 4.3-rc1.. $ uname -a Linux rg6830l 4.3.0-rc1 #1 SMP Sat Sep 12 19:15:35 PDT 2015 x86_64 x86_64 x86_64 GNU/Linux Brief details of changes are here:  http://lkml.iu.edu/hypermail/linux/kernel/1509.1/03200.html The NVIDIA gpl_only issue has been fixed in linux/kernel/workqueue.c, but the compile now fails even before that is reached: /home/rgadsdon/NVIDIA-Linux-x86_64-355.11/kernel/nvidia/nv-procfs.c: In function ‘nv_procfs_read_registry’: /home/rgadsdon/NVIDIA-Linux-x86_64-355.11/kernel/nvidia/nv-procfs.c:363:12: error: … Continue reading →