css_sch_is_valid
if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))
!css_sch_is_valid(&schib))
if (!css_sch_is_valid(&schib))
if (!css_sch_is_valid(schib))
EXPORT_SYMBOL_GPL(css_sch_is_valid);
int css_sch_is_valid(struct schib *);