genpatches-4.8-1.extras.tar.xz used by gentoo-sources doesn't include fbcondecor patch. Due some changes in kernel tree previous patch doesn't applay to new kernel. Reproducible: Always
Created attachment 449110 [details, diff] Framebuffer console decoration support for kernel 4.8 Here is modified patch which works (at least for me) Patch also has been reworked and now checked with (linux_src)/scripts/checkpatch.pl gives 0 errors, 80 warnings (were 122 errors, 153 warnings)
commit 87cd8ce6b13f62532e383db6302117fd51ed9f62 Author: Mike Pagano <mpagano@gentoo.org> Date: Mon Oct 10 20:07:31 2016 -0400 Bootsplash ported by Uladzimir Bely. (Bug #596126)