static inline unsigned long idx_to_kaddr(struct xen_netbk *netbk, u16 idx) { return (unsigned long)pfn_to_kaddr(idx_to_pfn(netbk, idx)); }
static inline unsigned long idx_to_kaddr(struct xenvif *vif, u16 idx) { return (unsigned long)pfn_to_kaddr(idx_to_pfn(vif, idx)); }