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SubjectRe: ehci dynamic debug problem
On Fri, 13 Apr 2012, Johannes Stezenbach wrote:

> > > Does it make sense now?
> >
> > No. What happens if dynamic debug is enabled for one line that calls
> > dbg_port_buf() but not for another? There's no way to avoid the string
> > formatting in both lines, even though one of them discards the result.
>
> That's why I said in my initial mail:
>
> Does dynamic debug offer an "is the message two lines below enabled" test?
>
> What I meant is that dbg_port() could test if it
> needs to call dbg_port_buf() for this call site.

Oh. As far as I know, that's not possible.

> Anyway, maybe the dbg_*_buf() are not called often enough to worry?

Probably not.

> If you're OK with "#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)"
> then maybe you should just do that?

Yes, that sounds best.

Alan Stern



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