3.18.2-calculate + nvidia

Hello,
Do you know a good way in calculate linux to fix the problem described in:
http://bugs.gentoo.org/541184
using : 3.18.2-calculate
emerge -a x11-drivers/nvidia-drivers shows:
[ebuild U ] x11-drivers/nvidia-drivers-346.35 [343.36] USE="-acpi* -gtk2% -gtk3% -tools*"

But that Version does have the Bug too. Additional information is here:
https://devtalk.nvidia.com/default/topic/796559/kernel-3-18-warning-no-drm_driver-set_busid-implementation-provided-by-nvidia_frontend_exit_modu/

Hope you cold advise some easy steps to solve that.

snoopy