Re: RFC: Testing for kernel features in external modules

[Sam Ravnborg]

On Thu, Jun 24, 2004 at 04:24:01PM -0400, Patrick McFarland wrote:
> On Thu, 24 Jun 2004 22:30:43 +0200, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
> > 
> > The last couple of kbuild patches has put attention to testing for
> > features in the kernel so an external modules can stay compatible
> > with a broad range of kernels.
> > Since vendors backport patches then testing for the kernel version is not
> > an option, so other means are reqired.
> > 
> > Two approaches are in widespread use:
> > a) grep kernel headers
> > b) Try to compile a small .c file (nvidia is a good example)
> 
> Why can't you check the .config file to see if features are enabled?

Features in a broad sense so API changes with respect to types
and function calls

	Sam
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