On 04/19/17 11:45, Tyrel Datwyler wrote: > On 04/18/2017 07:49 PM, Steven Rostedt wrote: >> On Tue, 18 Apr 2017 18:42:32 -0700 >> Frank Rowand <frowand.list@xxxxxxxxx> wrote: >> >>> And of course the other issue with using tracepoints is the extra space >>> required to hold the tracepoint info. With the pr_debug() approach, the >>> space usage can be easily removed for a production kernel via a config >>> option. >> >> Now if you are saying you want to be able to enable debugging without >> the tracing infrastructure I would agree. As the tracing infrastructure >> is large. But I'm working on shrinking it more. > > The primary consumers of OF_DYNAMIC seem to be pseries and powernv where > we are generally going to see the trace infrastructure enabled by > default in production. Another primary consumer will be overlays for ARM expansion boards. Still a work in progress. -Frank > > -Tyrel > >> >>> >>> Tracepoints are wonderful technology, but not always the proper tool to >>> use for debug info. >> >> But if you are going to have tracing enabled regardless, adding a few >> more tracepoints isn't going to make the difference. >> >> -- Steve >> >>> >>>> If Rob wants to convert printk() style data to trace data (and I can't >>>> convince him otherwise) then I will have further comments on this specific >>>> patch. >>>> > > . > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
