bpf: Extract is_addr_space_cast32() utility function

bpf_do_misc_fixups() converts the following address space cast
instructions to 32-bit moves:

- cast from address space 1 (user) to address space 0 (kernel)
- cast from address space 0 (kernel) to address space 1 (user)
  iff associated arena map has a BPF_F_NO_USER_CONV flag.

Extract a predicate detecting such instructions for use in the
following patches.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20260807-static-zext-v4-2-b6c270013c77@gmail.com

0 files changed, 0 insertions, 0 deletions