[PATCH v3 5/6] lib, arm64: untag addrs passed to strncpy_from_user and strnlen_user

strncpy_from_user and strnlen_user accept user addresses as arguments, and do not go through the same path as copy_from_user and others, so here we need to handle the case of tagged user addresses separately. Untag user pointers passed to these functions. Signed-off-by: Andrey Konovalov

[PATCH v3 5/6] lib, arm64: untag addrs passed to strncpy_from_user and strnlen_user

strncpy_from_user and strnlen_user accept user addresses as arguments, and do not go through the same path as copy_from_user and others, so here we need to handle the case of tagged user addresses separately. Untag user pointers passed to these functions. Signed-off-by: Andrey Konovalov ---