From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@redhat.com>
Subject: Re: [PATCH] sparc64 compatibility netfilter patches
Date: Thu, 02 Jan 2003 01:09:53 -0800 (PST)
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   From: Harald Welte <laforge@gnumonks.org>
   Date: Thu, 2 Jan 2003 09:57:34 +0100

   Unfortunately we will never get netfilter-specific code into the
   sys_sparc32.c file (and we also really don't want it to be there).
   
   Is there no solution which only touches iptables userspace and kernel
   code? (net/ipv4/netfilter/* as well as libiptc.c in userspace)?
   
It is the only way to translate socket options that include user
pointers or other types that are not identical in the 32-bit
and 64-bit environment.

It is always a bad idea to pass pointers and other non-hardcoded
types (ie. something other than u8, u16 etc.) via APIs.