netdevsim has no SADB. The usage of psp_assoc_drv_data() was always obsolete given psp_validate_xmit(), so we can remove nsim_assoc_add() and nsim_assoc_del(). netdevsim::assoc_cnt can also be removed. PSP core can track the balance of tx_key_add vs tx_key_del calls in a future change. Delete psp_assoc_drv_data() because there are no more callers left in the tree. mlx5 accesses pas->drv_data directly. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20260903-psp-prep-v1-4-d47e9c4c375d@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>