diff options
| author | Felipe Balbi | 2017-01-23 13:20:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2017-01-25 11:00:01 +0100 |
| commit | 5abdc2e6e12ff040a218dc807be4c4d9866b265f (patch) | |
| tree | 7dbdfb537589305248bc348c6d3f2c88c59de7ee /drivers/usb/host/xhci.c | |
| parent | usb: host: xhci: make a generic TRB tracer (diff) | |
| download | kernel-qcow2-linux-5abdc2e6e12ff040a218dc807be4c4d9866b265f.tar.gz kernel-qcow2-linux-5abdc2e6e12ff040a218dc807be4c4d9866b265f.tar.xz kernel-qcow2-linux-5abdc2e6e12ff040a218dc807be4c4d9866b265f.zip | |
usb: host: xhci: add urb_enqueue/dequeue/giveback tracers
These three new tracers will help us tie TRBs into URBs by *also*
looking into URB lifetime.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 5d6b5a27460a..958c92bd9177 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1383,6 +1383,8 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) urb_priv->td_cnt = 0; urb->hcpriv = urb_priv; + trace_xhci_urb_enqueue(urb); + if (usb_endpoint_xfer_control(&urb->ep->desc)) { /* Check to see if the max packet size for the default control * endpoint changed during FS device enumeration @@ -1509,6 +1511,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) xhci = hcd_to_xhci(hcd); spin_lock_irqsave(&xhci->lock, flags); + + trace_xhci_urb_dequeue(urb); + /* Make sure the URB hasn't completed or been unlinked already */ ret = usb_hcd_check_unlink_urb(hcd, urb, status); if (ret || !urb->hcpriv) |