Building the kernel with clang

I have no first hand experience with supporting arm32 builds with clang, but given that the kernel now has the generic/kbuild bits for supporting clang and that there are older patch sets for arm32 out there I imagine it shouldn't be that hard. The stack shared by Arnd Bergmann in April could be a starting point: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/play... / https://www.spinics.net/lists/linux-fsdevel/msg109823.html