Re: linux 2.6.21-rc1 : FB Kconfig error

On Wed, 21 Feb 2007, Roman Zippel wrote:

On Wed, 21 Feb 2007, Geert Uytterhoeven wrote:

quoted

quoted

 make mrproper ...
 make rndconfig ...drivers/video/Kconfig:1604:warning: 'select' used by config symbol 'FB_PS3' refer to undefined symbol 'PS3_PS3AV'
 make oldconfig ...

This looks actually like a bug in kconf, since it doesn't obey the
`depends on PPC_PS3' one line above...

It has little to do with the dependencies, as select doesn't really care 
about them.

Well, that's the problem :-)

Why doesn't it obey dependencies? On one side we want to put drivers of a
specific type under driver/*, on the other side we want to put
architecture-specific things under arch/*. But as soon as you want to select an
architecture-specific thing, this breaks (well, generates warnings).

In this case it looks like someone went a little overboard with the select 
usage. It looks like most of the PS3 options could be hidden behind an 
advanced option, then you can also use normal dependencies.

We wanted to have PS3FB and PS3SND (not yet submitted) to select PS3AV, so it
gets enabled automatically. Else we need dependencies on things the user
shouldn't really need to care about.

What other solution do you propose?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- Sony Network and Software Technology Center Europe (NSCE)
Geert.Uytterhoeven@sonycom.com ------- The Corporate Village, Da Vincilaan 7-D1
Voice +32-2-7008453 Fax +32-2-7008622 ---------------- B-1935 Zaventem, Belgium

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