toolchain-agnostic build time improvements - Tanzir Hasan, Google & Nick Desaulniers, Google 

In this talk, we'll cover areas of research for how we might be able to improve compile times and overall build times for the Linux kernel in a toolchain agnostic manner.
We'll look at:
- Ingo's "Fast Kernel Headers" series
- automating header refactoring
- include-what-you-use and the linux kernel
- precompiled headers
- recent improvements to modpost
- link-time de-duplication of BTF