Re: [Xen-devel] [PATCHv2] tracing/events: Add bounce tracing to swiotbl

[Steven Rostedt <rostedt@xxxxxxxxxxx>]

On Wed, 25 Sep 2013 13:56:49 -0400
Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

> .. snip..
> > >+  TP_printk("dev_name: %s dma_mask=%llx dev_addr=%llx "
> > >+          "size=%zu swiotlb_force=%x",
> > >+          __get_str(dev_name),
> > >+          __entry->dma_mask,
> > >+          (unsigned long long)__entry->dev_addr,
> > >+          __entry->size,
> > >+          __entry->swiotlb_force)
> 
> Would it make sense to do something like this:
> 
>               __entry->swiotlb_force ? "swiotlb_force" : "")

I think that's fine. I do believe that the libtraceevents can parse the
"?:" syntax.

-- Steve

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