Add a suffix-only kfunc declaration with arena annotations on all five arguments. Verify that resolve_btfids emits address_space(1) type tags for every position without KF_ARENA_ARG flags in the BTF ID sets. Represent expected arena arguments as a per-parameter bitmap so the test covers suffixes beyond the two positions expressible by flags. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://patch.msgid.link/20260812193842.2879226-3-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>