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USB: xhci: Make xhci_set_hc_event_deq() static.

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Now that the event handler functions no longer use xhci_set_hc_event_deq()
to update the event ring dequeue pointer, that function is not used by
anything in xhci-ring.c.  Move that function into xhci-mem.c and make it
static.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sarah Sharp
2010-07-29 22:12:56 -07:00
committed by Greg Kroah-Hartman
parent c06d68b814
commit 257d585aae
3 changed files with 23 additions and 23 deletions
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22
drivers/usb/host/xhci-ring.c
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@@ -301,28 +301,6 @@ static int room_on_ring(struct xhci_hcd *xhci, struct xhci_ring *ring,
return 1;
}
void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
{
u64 temp;
dma_addr_t deq;
deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg,
xhci->event_ring->dequeue);
if (deq == 0 && !in_interrupt())
xhci_warn(xhci, "WARN something wrong with SW event ring "
"dequeue ptr.\n");
/* Update HC event ring dequeue pointer */
temp = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
temp &= ERST_PTR_MASK;
/* Don't clear the EHB bit (which is RW1C) because
* there might be more events to service.
*/
temp &= ~ERST_EHB;
xhci_dbg(xhci, "// Write event ring dequeue pointer, preserving EHB bit\n");
xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | temp,
&xhci->ir_set->erst_dequeue);
}
/* Ring the host controller doorbell after placing a command on the ring */
void xhci_ring_cmd_db(struct xhci_hcd *xhci)
{