static int periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr)
{
union ehci_shadow *prev_p = &ehci->pshadow [frame];
static int periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr)
{
union ehci_shadow *prev_p = &ehci->pshadow [frame];
unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */
qh->hw_next = EHCI_LIST_END;
unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */
qh->hw_next = EHCI_LIST_END;