Dear stable kernel maintainers,
(Woah, two in one day; have I exceeded my limit?)

Please consider the attached patch for 5.4 and 4.19 for commit
b8a9092330da ("Kbuild: do not emit debug info for assembly with
LLVM_IAS=1"), which fixes a significant number of warnings under arch/
when assembling a kernel with Clang.

These backports have already been shipped in Android; I would like to
revert them and take them from syncing with stable. CrOS also has the
patches staged, but I would prefer for them to sync them from stable
as well.

b8a9092330da just landed in v5.10-rc7.  I recently read
https://lwn.net/Articles/838819/, which mentions a discussion about
letting patches have more time to soak in mainline, so I accept if
your decision is to wait, though I'll note these have been soaking in
Android for 2 days shy of one month (Nov 10).

There were minor conflicts due to missing Kbuild support for
compressed debug info, which is a feature I implemented but don't plan
to backport to stable.

We plan to use Clang's integrated assembler for Android and CrOS for 4.19+.

See also: https://github.com/ClangBuiltLinux/linux/issues/716.
-- 
Thanks,
~Nick Desaulniers