virtualbox-guest-additions complains drm/ttm/ttm_memory.h is missing. This file exists in v5.12 but not in v5.13: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/drm/ttm?id=f07069da6b4c5f937d6df2de6504394845513964 Reproducible: Always Steps to Reproduce: 1. Upgrade to vanilla-sources-5.13.0 2. =app-emulation/virtualbox-guest-additions-6.1.22 Actual Results: Failed to emerge app-emulation/virtualbox-guest-additions-6.1.22 Expected Results: emerge successfully.
Created attachment 722488 [details] build.log
Created attachment 722491 [details] emerge --info
app-emulation/virtualbox-guest-additions-6.1.24 fixes the issue.