SCF_FROZEN
sc_flags = SCF_FROZEN | SCF_HALTED | (flags & FREEZE_LINK_DOWN ?
if (sc->flags & SCF_FROZEN) {
if (!sc || !(sc->flags & SCF_FROZEN) || sc->type == SC_USER)
if (!sc || !(sc->flags & SCF_FROZEN) || sc->type == SC_USER)