Re: [RFC PATCH 1/3] export symbol report: overview

[Adrian Bunk]

On Fri, Apr 21, 2006 at 09:43:17AM +0200, Sam Ravnborg wrote:
> On Thu, Apr 20, 2006 at 03:36:53PM -0700, Ram Pai wrote:
> > This patch series enables on-demand report generation of export symbol usage by
> > inkernel modules. The report is available at
> > 
> > A report generated by executing 
> >  	make allmodconfig
> >  	make export_report
> > is available at http://www.sudhaa.com/~ram/misc/export_report.txt
> > 
> > This report lists:
> > 1. the usage count of all exported symbols by in-kernel modules.
> > 2. For each in-kernel module lists
> > 	a) the in-kernel modules it depend on.
> > 	b) list of exported symbols from that in-kernel modules it depend on.
> > 
> > Highlights: 
> > 	On x86 architecture
> >  	(1) 880 exported symbols not used by any in-kernel modules.
> >         (2) 1792 exported symbols used only once.
> > 
> > This patch series has comments by Adrian Bunk incorporated.
> 
> Hi Ram Pai.
> 
> In principle what your patch does is a simple port-processign of
> Module.symvers.
> Insead of introducing another step in the buildprocess then for this
> functionality we should just call your script direct.
> This is not something the average users will do often, so having to
> type:
> ./scripts/export-report.pl
>...

Adding an exportcheck target similar to e.g. the namespacecheck or 
checkstack targets calling an external script shouldn't be a problem.

> 	Sam

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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