// Having mapped the list back to LMS-substring indexes,
// we can place those into the right buckets.
func unmap_8_32(text []byte, sa []int32, numLMS int) {
	unmap := sa[len(sa)-numLMS:]
	j := len(unmap)

	// "LMS-substring iterator" (see placeLMS_8_32 above).
	c0, c1, isTypeS := byte(0), byte(0), false
	for i := len(text) - 1; i >= 0; i-- {
		c0, c1 = text[i], c0
		if c0 < c1 {

				ip = v.IP
			default:
				continue
			}

			// handling ipv4 wrapping in ipv6
			ipAddr, okay := netip.AddrFromSlice(ip)
			if !okay {
				continue
			}
			unwrapAddr := ipAddr.Unmap()
			if !unwrapAddr.IsValid() || unwrapAddr.IsLoopback() || unwrapAddr.IsLinkLocalUnicast() || unwrapAddr.IsLinkLocalMulticast() || unwrapAddr.IsUnspecified() {
				continue
			}

			// Add to map

			volumeToUnmount, actualStateOfWorld, podsDir)
	} else {
		// Block volume case
		// Unmap a volume if a volume is mapped
		generatedOperations, err = oe.operationGenerator.GenerateUnmapVolumeFunc(
			volumeToUnmount, actualStateOfWorld)
	}
	if err != nil {
		return err
	}
	// All volume plugins can execute unmount/unmap for multiple pods referencing the
	// same volume in parallel

	}
	for _, tt := range tests {
		got := tt.ip.Is4In6()
		if got != tt.want {
			t.Errorf("Is4In6(%q) = %v; want %v", tt.ip, got, tt.want)
		}
		u := tt.ip.Unmap()
		if u != tt.wantUnmap {
			t.Errorf("Unmap(%q) = %v; want %v", tt.ip, u, tt.wantUnmap)
		}
	}
}

func TestPrefixMasked(t *testing.T) {
	tests := []struct {
		prefix Prefix
		masked Prefix
	}{
		{

	}

	// unmap devicePath from pod volume path
	unmapDeviceErr := blkUtil.UnmapDevice(podDeviceUnmapPath, volumeMapName, false /* bindMount */)
	if unmapDeviceErr != nil {
		return fmt.Errorf("blkUtil.DetachFileDevice failed. podDeviceUnmapPath:%s, volumeMapName: %s, bindMount: %v: %v",
			podDeviceUnmapPath, volumeMapName, false, unmapDeviceErr)
	}

	// unmap devicePath from global node path

}

// BlockVolumeUnmapper interface is an unmapper interface for block volume.
type BlockVolumeUnmapper interface {
	BlockVolume
}

// CustomBlockVolumeUnmapper interface provides custom methods to cleanup/unmap the volumes.
type CustomBlockVolumeUnmapper interface {
	BlockVolumeUnmapper
	// TearDownDevice removes traces of the SetUpDevice procedure.
	// If the plugin is non-attachable, this method detaches the volume

	if pathExists, pathErr := mount.PathExists(path); pathErr != nil {
		return pathExists, fmt.Errorf("error checking if path exists: %w", pathErr)
	} else if !pathExists {
		klog.Warningf("Warning: Unmap skipped because path does not exist: %v", path)
		return pathExists, nil
	}
	return true, nil

pkg net/netip, method (Addr) Prefix(int) (Prefix, error)
pkg net/netip, method (Addr) Prev() Addr
pkg net/netip, method (Addr) String() string
pkg net/netip, method (Addr) StringExpanded() string
pkg net/netip, method (Addr) Unmap() Addr
pkg net/netip, method (Addr) WithZone(string) Addr
pkg net/netip, method (Addr) Zone() string
pkg net/netip, method (AddrPort) Addr() Addr
pkg net/netip, method (AddrPort) AppendTo([]uint8) []uint8

		return EINVAL
	}

	// Find the base of the mapping.
	p := &data[cap(data)-1]
	m.Lock()
	defer m.Unlock()
	b := m.active[p]
	if b == nil || &b[0] != &data[0] {
		return EINVAL
	}

	// Unmap the memory and update m.
	if errno := m.munmap(uintptr(unsafe.Pointer(&b[0])), uintptr(len(b))); errno != nil {
		return errno
	}
	delete(m.active, p)
	return nil
}

// ReadFromUDPAddrPort acts like ReadFrom but returns a netip.AddrPort.
//
// If c is bound to an unspecified address, the returned
// netip.AddrPort's address might be an IPv4-mapped IPv6 address.
// Use netip.Addr.Unmap to get the address without the IPv6 prefix.
func (c *UDPConn) ReadFromUDPAddrPort(b []byte) (n int, addr netip.AddrPort, err error) {
	if !c.ok() {
		return 0, netip.AddrPort{}, syscall.EINVAL
	}