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Re: [PATCH -mm] rt2x00: fix Kconfig dependencies

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On Sunday 28 September 2008, Gertjan van Wingerde wrote:
> Ivo van Doorn wrote:
> > On Sunday 28 September 2008, Gertjan van Wingerde wrote:
> >    
> >> Ivo,
> >>
> >> Ivo van Doorn wrote:
> >>      
> >>>> Ivo, please explain what rt2x00 module(s) you want to be built. In
> >>>> English
> >>>> if possible, not in Kconfig language...
> >>>>
> >>>>          
> >>> There are 3 kind of rt2x00 modules:
> >>> 	rt2x00lib
> >>> 	rt2x00pci/usb
> >>> 	rt2x00 driver (rt2400pci, rt2500pci, rt61pci, rt2500usb, rt73usb)
> >>>
> >>> When the user selects any of the rt2x00 drivers, the rt2x00pci/usb and rt2x00lib
> >>> are selected. For rt2x00lib there are some additional configuration options like
> >>> RT2X00_LIB_RFKILL and RT2X00_LIB_LEDS which will build into rt2x00lib.
> >>>
> >>> This means that when rt2400pci is selected as module, rt2x00pci and rt2x00lib
> >>> must be built as modules as well and when rt2400pci is selected as buildin
> >>> rt2x00pci and rt2x00lib must be buildin as well.
> >>>
> >>> But with the optional rt2x00lib configuration options the breakage you reported
> >>> is possible. So we either need:
> >>> 	1) Force rt2x00lib / driver to be compiled as module when RFKILL/LEDS were
> >>> 	    compiled as module
> >>> 	2) Disable config option when invalid config combination is found
> >>>
> >>> Personally I would favor 1), because 2) could lead to confusion to users
> >>> who think they selected everything they needed to enable support for it in
> >>> rt2x00.
> >>>
> >>>        
> >> Find attached a patch that implements option 2, along with adding a
> >> warning to the user when rfkill support in rt2x00 is disabled due to the
> >> invalid config combination. I've looked at implementing option 1, but
> >> couldn't find a way to do it without disabling the entire rt2x00 module
> >> when rfkill wasn't available.
> >>
> >> I guess we can live with this option for now, until we have figured out
> >> how to do option 1.
> >>      
> >
> > Sounds good, but please change RT2X00 in RT2X00_LIB
> >
> > 	default y if (RT2X00=y&&  RFKILL=y) || (RT2X00=m&&  RFKILL!=n)
> >
> > Could you also do a similar thing for the LED handling?
> > That way we can fix the entire thing with a single patch. :)
> 
> Here is an updated patch. This required some more surgery to the Kconfig 
> file, as symbols had to be moved in the file.
> This patch fixes the build issues for both rfkill and leds support.

Thanks, you can add my:
	Signed-off-by: Ivo van Doorn <IvDoorn@xxxxxxxxx>

John, can you merge the patch into wireless-testing?

Thanks,

Ivo
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