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: NFelipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: NMathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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