pc_sprod_enter
gen = pc_sprod_enter(&spc->spc_cp_time_lock);
gen = pc_sprod_enter(&c->c_lock);
return (pc_sprod_enter(&pfstlim->pfstlim_lock));
return (pc_sprod_enter(&pfsrlim->pfsrlim_lock));
unsigned int pc_sprod_enter(struct pc_lock *);
return pc_sprod_enter(&tu->tu_pcl);