On Sun, 2006-20-08 at 19:33 +0200, Denis Vlasenko wrote:
> Hi,
> 
> include/net/pkt_act.h plays a game of inlines
> which are kind of "templatized", like this:
> 
> act_ipt.c:
> 
> /* ovewrride the defaults */
> #define tcf_st          tcf_ipt
> #define tcf_t_lock      ipt_lock
> #define tcf_ht          tcf_ipt_ht
> #define CONFIG_NET_ACT_INIT
> #include <net/pkt_act.h>
> 
> This results in code duplication. For example,
> tcf_generic_walker() is duplicated four times.
> On i386 it is about 4*800 bytes in text section.
> Other inlines are a bit smaller but still are substantial.

As per last discussion, either Patrick McHardy or myself are going to
work on it - at some point. Please be patient. The other alternative is:
you fix it and send patches. 

Note that even after conversion, functions like tcf_generic_walker() are
not going to save much in total .text sizes; also note they run the
control path and are typically not as much invoked and therefore not
performance impacting on smaller cache systems..

cheers,
jamal

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