mtd_mod_by_ws
ops.len -= mtd_mod_by_ws(req.start + ops.len, mtd);
ops.len -= mtd_mod_by_ws(req.start + ops.len, mtd);
pageofs = mtd_mod_by_ws(ebofs, mtd);
if (mtd_mod_by_ws(instr->addr, mtd) || mtd_mod_by_ws(instr->len, mtd))