Re: [PATCH] eeepc-wmi: Add backlight support

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On Wed, Apr 07, 2010 at 05:05:41PM +0200, Corentin Chary wrote:
> On Wed, Apr 7, 2010 at 4:17 PM, Yong Wang <yong.y.wang@xxxxxxxxxxxxxxx> wrote:
> > Add backlight support for WMI based Eee PC laptops. In addition, start
> > to use a platform device to manage all functional devices as more
> > features will be implemented later.
> >
> > +static struct platform_device *eeepc_wmi_platform_device;
> > ?static struct input_dev *eeepc_wmi_input_dev;
> > +struct backlight_device *eeepc_wmi_backlight_device;
> 
> Instead of using static variables, you should really use a struct
> eeepc_wmi, store stuff inside it,
> and make all these functions reentrant. Alan did it for eeepc-laptop,
> and I did it for asus-laptop,
> see http://git.iksaif.net/?p=acpi4asus.git;a=commit;h=854c78363f37f03e30e2856ef17d7eefc62e0d06
> .
> The driver would really be cleaner and easier to review with that. And
> it would be more coherent with
> eeepc-laptop's code.
> 

Thanks for your review, Corentin. Could you please explain a bit more
what you mean by "make all these functions reentrant"?

Thanks
-Yong

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