reqid_data_t
extern int crypto_pr_reqid(uintptr_t, reqid_data_t *, reqid_cb_data_t *);
reqid_data_t *wdata;
wsp->walk_data = mdb_alloc(sizeof (reqid_data_t), UM_SLEEP);
wdata = (reqid_data_t *)wsp->walk_data;
reqid_data_t *wdata;
mdb_free(wsp->walk_data, sizeof (reqid_data_t));
crypto_pr_reqid(uintptr_t addr, reqid_data_t *data, reqid_cb_data_t *cbdata)
reqid_data_t wdata;