diff options
| author | Xenia Ragiadakou <burzalodowa@gmail.com> | 2013-08-14 07:33:54 +0400 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2013-08-14 08:14:42 +0400 |
| commit | aa50b29061d3df896c494d92e9c8c2e1f295cc6e (patch) | |
| tree | 886f57b61cf8d9d20965832492ef36022ae66d36 /drivers/usb/host/xhci.c | |
| parent | 63a23b9a7451660525c90b08219e14e701e294f1 (diff) | |
| download | linux-aa50b29061d3df896c494d92e9c8c2e1f295cc6e.tar.xz | |
xhci: trace debug statements for urb cancellation
This patch defines a new trace event, which is called xhci_dbg_cancel_urb
and belongs to the event class xhci_log_msg, and adds tracepoints that
trace the debug messages related to the removal of a cancelled URB from
the endpoint's transfer ring.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 9f4f73bfd01b..4adf5e19918a 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1434,7 +1434,8 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) goto done; temp = xhci_readl(xhci, &xhci->op_regs->status); if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "HW died, freeing TD.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "HW died, freeing TD."); urb_priv = urb->hcpriv; for (i = urb_priv->td_cnt; i < urb_priv->length; i++) { td = urb_priv->td[i]; @@ -1452,8 +1453,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) } if ((xhci->xhc_state & XHCI_STATE_DYING) || (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "Ep 0x%x: URB %p to be canceled on " - "non-responsive xHCI host.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Ep 0x%x: URB %p to be canceled on " + "non-responsive xHCI host.", urb->ep->desc.bEndpointAddress, urb); /* Let the stop endpoint command watchdog timer (which set this * state) finish cleaning up the endpoint TD lists. We must @@ -1474,8 +1476,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) urb_priv = urb->hcpriv; i = urb_priv->td_cnt; if (i < urb_priv->length) - xhci_dbg(xhci, "Cancel URB %p, dev %s, ep 0x%x, " - "starting at offset 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Cancel URB %p, dev %s, ep 0x%x, " + "starting at offset 0x%llx", urb, urb->dev->devpath, urb->ep->desc.bEndpointAddress, (unsigned long long) xhci_trb_virt_to_dma( |