xhci: STFU: Don't print event ring dequeue pointer.

Stop printing out the event ring dequeue pointer and status register in
the operational register set.  The host will report an OK status 99% of
the time the interrupt handler is called, and usually when it's really
hosed, a host controller won't even call the interrupt handler.  So the
line is really useless.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 4794905..f1ae172 100644 (file)
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -167,9 +167,7 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
                next = ring->dequeue;
        }
        addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
-       if (ring == xhci->event_ring)
-               xhci_dbg(xhci, "Event ring deq = 0x%llx (DMA)\n", addr);
-       else if (ring == xhci->cmd_ring)
+       if (ring == xhci->cmd_ring)
                xhci_dbg(xhci, "Command ring deq = 0x%llx (DMA)\n", addr);
        else
                xhci_dbg(xhci, "Ring deq = 0x%llx (DMA)\n", addr);
@@ -2267,16 +2265,6 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
                spin_unlock(&xhci->lock);
                return IRQ_NONE;
        }
-       xhci_dbg(xhci, "op reg status = %08x\n", status);
-       xhci_dbg(xhci, "Event ring dequeue ptr:\n");
-       xhci_dbg(xhci, "@%llx %08x %08x %08x %08x\n",
-                (unsigned long long)
-                xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, trb),
-                lower_32_bits(le64_to_cpu(trb->link.segment_ptr)),
-                upper_32_bits(le64_to_cpu(trb->link.segment_ptr)),
-                (unsigned int) le32_to_cpu(trb->link.intr_target),
-                (unsigned int) le32_to_cpu(trb->link.control));
-
        if (status & STS_FATAL) {
                xhci_warn(xhci, "WARNING: Host System Error\n");
                xhci_halt(xhci);