pmcs_find_phy_needing_work
pptr = pmcs_find_phy_needing_work(pwp, pwp->root_phys);
cphyp = pmcs_find_phy_needing_work(pwp, cphyp);
static pmcs_phy_t *pmcs_find_phy_needing_work(pmcs_hw_t *, pmcs_phy_t *);