> From: Felipe Balbi [mailto:balbi@xxxxxx] > Sent: Tuesday, August 19, 2014 12:09 PM > > When we're debugging hard-to-reproduce and time-sensitive > use cases, printk() poses too much overhead. That's when > the kernel's tracing infrastructure comes into play. > > This patch implements a few initial tracepoints for the > dwc3 driver. More traces can be added as necessary in order > to ease the task of debugging dwc3. > > Signed-off-by: Felipe Balbi <balbi@xxxxxx> > --- > > Hi guys, > > here's v2 of my dwc3 tracepoints patch. Please have a look and > *CAREFULLY* consider if we want to add anything else. > > Paul, I believe you have much more experience in debugging early > HW releases with FPGA models than any of us, so tracing is likely > to help you, is there anything you'd want me to add to as a tracepoint ? What about the "unexpected" interrupt events? It would be nice to see if we receive e.g. an EVENT_OVERFLOW interrupt. Especially since you have some of those events enabled, but don't have handlers for all of them. Maybe a single tracepoint for all of the unexpected events? -- Paul -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
