On 14.2.2020 18.56, Steven Rostedt wrote: > From: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > > libtraceevent (used by perf and trace-cmd) failed to parse the > xhci_urb_dequeue trace event. This is because the user space trace > event format parsing is not a full C compiler. It can handle some basic > logic, but is not meant to be able to handle everything C can do. > > In cases where a trace event field needs to be converted from a number > to a string, there's the __print_symbolic() macro that should be used: > > See samples/trace_events/trace-events-sample.h > > Some xhci trace events open coded the __print_symbolic() causing the > user spaces tools to fail to parse it. This has to be replaced with > __print_symbolic() instead. > > CC: stable@xxxxxxxxxxxxxxx > Reported-by: Tzvetomir Stoyanov <tstoyanov@xxxxxxxxxx> > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206531 > Fixes: 5abdc2e6e12ff ("usb: host: xhci: add urb_enqueue/dequeue/giveback tracers") > Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > --- Thanks Added to queue -Mathias
