Merge branch 'fixes-for-kfunc-prototype-generation'

Daniel Xu says:

====================
Fixes for kfunc prototype generation

This patchset fixes new warnings and errors that kfunc prototype
generation caused.
====================

Link: https://lore.kernel.org/r/cover.1718295425.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>