Merge branch 'Follow ups for kptr series'

Kumar Kartikeya Dwivedi says:

====================

Fix a build time warning, and address comments from Alexei on the merged
version [0].

  [0]: https://lore.kernel.org/bpf/20220424214901.2743946-1-memxor@gmail.com

Changelog:
----------
v1 -> v2
v1: https://lore.kernel.org/bpf/20220510211727.575686-1-memxor@gmail.com

 * Add Fixes tag to patch 1
 * Fix test_progs-noalu32 failure in CI due to different alloc_insn (Alexei)
 * Remove per-CPU struct, use global struct (Alexei)
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>