On Sat, 23 Feb 2008 12:05:36 +0200 (EET) "Ilpo Järvinen" <[EMAIL PROTECTED]> 
wrote:

> On Sat, 23 Feb 2008, Andrew Morton wrote:
> 
> > On Wed, 20 Feb 2008 15:47:18 +0200 "Ilpo Järvinen" <[EMAIL PROTECTED]> 
> > wrote:
> > 
> > > vmlinux.o:
> > >  62 functions changed, 66 bytes added, 10935 bytes removed, diff: -10869
> > > 
> > > ...+ these to lib/jhash.o:
> > >  jhash_3words: 112
> > >  jhash2: 276
> > >  jhash: 475
> > > 
> > > select for networking code might need a more fine-grained approach.
> > 
> > It should be possible to use a modular jhash.ko.  The things which you
> > have identified as clients of the jhash library are usually loaded as 
> > modules.
> > But in the case where someone does (say) NFSD=y we do need jhash.o linked 
> > into
> > vmlinux also. This is doable in Kconfig but I always forget how.
> 
> Ok, even though its not that likely that one lives without e.g.
> net/ipv4/inet_connection_sock.c or net/netlink/af_netlink.c?

Sure, the number of people who will want CONFIG_JHASH=n is very small.

> But maybe 
> some guys "really know what they are doing" and can come up with config 
> that would be able to build it as module (for other than proof-of-concept 
> uses I mean)... :-/
> 
> > Adrian, Sam and Randy are the repositories of knowledge here ;)
> 
> Thanks, I'll consult them in this. I've never needed to do any Kconfig 
> stuff so far so it's no surprise I have very little clue... :-)

Thanks.  If it gets messy I'd just put lib/jhash.o in obj-y.  I assume it's
pretty small.

> I've one question for you Andrew, how would you like this kind of 
> cross-subsys toucher to be merged, through you directly I suppose?

Sure, I can scrounge around for appropriate reviews and acks and can make
sure that nobody's pending work gets disrupted.

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