linux-kernel - Re: [PATCH] misc/bmp085: Enable building as a module

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Date:	Tue, 25 Jun 2013 13:16:57 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Eric Andersson <eric.andersson@...xphere.com>
Cc:	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] misc/bmp085: Enable building as a module

On Tue, 2013-06-25 at 09:27 +0200, Eric Andersson wrote:
> On 15:10 Mon 24 Jun     , Ben Hutchings wrote:
> > Commit 985087dbcb02 'misc: add support for bmp18x chips to the bmp085
> > driver' changed the BMP085 config symbol to a boolean.  I see no
> > reason why the shared code cannot be built as a module, so change it
> > back to tristate.
> > 
> > Cc: Eric Andersson <eric.andersson@...xphere.com>
> > Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
> > ---
> >  drivers/misc/Kconfig |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> > index c002d86..7a68184 100644
> > --- a/drivers/misc/Kconfig
> > +++ b/drivers/misc/Kconfig
> > @@ -451,7 +451,7 @@ config ARM_CHARLCD
> >  	  still useful.
> >  
> >  config BMP085
> > -	bool
> > +	tristate
> >  	depends on SYSFS
> >  
> >  config BMP085_I2C
> > 
> 
> There is no reason for building the common code stand-alone. The BMP085
> config option is only selectable via the BMP085_I2C/_SPI options.

Yes, but it is then always built-in.

Ben.

> See the select-statement for those options:
> 
>  config BMP085_I2C
> 	tristate "BMP085 digital pressure sensor on I2C"
> 	select BMP085
>  ...
> 

-- 
Ben Hutchings
Life is like a sewer:
what you get out of it depends on what you put into it.

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