Re: [PATCH] tracing: add support for tracing MMIO helpers

[Steven Rostedt]

On Tue, 26 Apr 2016 21:14:47 +0200
Arnd Bergmann <arnd@xxxxxxxx> wrote:


> > +/* This part must be outside protection */
> > +#include <trace/define_trace.h>
> > diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
> > index e45db6b0d878..feca834436c5 100644
> > --- a/kernel/trace/Kconfig
> > +++ b/kernel/trace/Kconfig
> > @@ -372,6 +372,22 @@ config STACK_TRACER
> >  
> >  	  Say N if unsure.
> >  
> > +config TRACE_MMIO_HELPERS
> > +       bool "Support for tracing MMIO helpers"
> > +       select GENERIC_TRACER  
> 
> How about putting a whitelist of architectures here that are including
> the necessary definitions? Or better, a HAVE_TRACE_MMIO_HELPERS
> symbol that gets selected by architectures and that this depends on?
> 

Agreed.

-- Steve