Re: [PATCH] usb: gadget: functions: add ftrace export over USB

From: Steven Rostedt
Date: Thu Mar 21 2019 - 12:37:20 EST


On Thu, 21 Mar 2019 11:38:56 +0200
Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> wrote:

> Hi,
>
> Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> writes:
> > Allow for ftrace data to be exported over a USB Gadget
> > Controller. With this, we have a potentially very fast pipe for
> > transmitting ftrace data to a Host PC for further analysis.
> >
> > Note that in order to decode the data, one needs access to kernel
> > symbols in order to convert binary data into function names and what
> > not.
> >
> > Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
> > ---
> >
> > I wanted to take this through the gadget tree, but there is a
> > dependency with a previous patch of mine adding and extra argument to
> > the ->write() function. Hoping someone else will take it.
>
> This is still not upstream, I'll take it through my tree this time around.
>

Can you post the latest to the list one more time. At least to make
sure you got the naming correct ;-)

Not FTrace or f_trace.

-- Steve