[Cocci] how to debug missing match?

Julia Lawall julia.lawall at lip6.fr
Sun Dec 21 11:39:14 CET 2014


On Sun, 21 Dec 2014, Wolfram Sang wrote:

> 
> > does not result in anything although three drivers should match IMO with
> > the same pattern as the pmu driver above. Both use
> > platform_driver_register() and both have the .owner field set.
> > 
> > drivers/macintosh/windfarm_pm112.c
> > drivers/macintosh/windfarm_pm72.c
> > drivers/macintosh/windfarm_rm31.c
> > 
> > How can I debug why the match does not occur?
> 
> So, I found "--verbose-parsing" to be helpful which gives me:
> 
> parse error 
>  = File "drivers/macintosh/windfarm_pm112.c", line 685, column 4, charpos = 17702
>     around = 'nr_cores', whole content = 		++nr_cores;
> 
> which basically means that it can't handle for_each_node_by_type()?
> 
> bad: 	for_each_node_by_type(cpu, "cpu")
> BAD:!!!!! 		++nr_cores;
> 
> But neither "--include include/linux/of.h" nor "--recursive-includes"
> does help the case for me?

It is not surprising that adding more includes doesn't help.  But I would 
have thought that for_each_node_by_type, as it begins with for, would be 
something that it would pick up on.  I will take a look.

julia


More information about the Cocci mailing list