Re: seems to be impossible to disable CONFIG_SERIAL [2.6.7]

[Luke Kenneth Casson Leighton]

On Fri, Sep 10, 2004 at 01:35:45PM +0100, Russell King wrote:
> On Fri, Sep 10, 2004 at 01:20:59PM +0100, Luke Kenneth Casson Leighton wrote:
> > On Fri, Sep 10, 2004 at 12:09:50PM +0100, Russell King wrote:
> > > On Fri, Sep 10, 2004 at 12:08:19PM +0100, Luke Kenneth Casson Leighton wrote:
> > > > hi,
> > > > 
> > > > has anyone noticed that it's impossible (without hacking) to remove
> > > > CONFIG_SERIAL?
> > > > 
> > > > remove the entries or set all SERIAL config entries to "n"...
> > > > hit make...
> > > > CONFIG_SERIAL_8250 gets set to "m", CONFIG_SERIAL gets set to "y"!
> > > > 
> > > > seeerrrriiialllll muuuusssstttt dieeeeeee kill kill kill.
> > > 
> > > No idea - you've given very little information to go on.  I doubt
> > > you're building an x86 kernel... Mind giving some clues and maybe
> > > a copy of your .config file?
> >  
> >  x86 kernel, debian default config with legacy stuff like
> > 
> >  sure.
> 
> Ok, so it _isn't_ CONFIG_SERIAL at all.  Grumble.
> 
> Anyway, CONFIG_SERIAL_8250 gets set to 'm' because:
> 
> $ find . -name 'Kconfig*' | xargs grep 'select SERIAL_8250' -B5
> ./drivers/char/Kconfig-source "drivers/char/pcmcia/Kconfig"
> ./drivers/char/Kconfig-
> ./drivers/char/Kconfig-config MWAVE
> ./drivers/char/Kconfig- tristate "ACP Modem (Mwave) support"
> ./drivers/char/Kconfig- depends on X86
> ./drivers/char/Kconfig: select SERIAL_8250
> 
> and you have CONFIG_MWAVE is set to 'm'.  

 oh, do i?  looovely, what's one of those when it's at home?

 it would appear that the "select ..." thing is what's causing the
 nightmares: it forces options to be enabled without informing the user,
 and without the user being able to do it the other way round:
 say "i don't want CONFIG_SERIAL_8250 and therefore any option depending
 on it can bugger off".

 l.

-- 
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