From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Westphal Subject: [PATCH nf-next 0/3] netfilter: reduce hook array sizes to what is needed Date: Thu, 7 Dec 2017 14:06:17 +0100 Message-ID: <20171207130620.7585-1-fw@strlen.de> To: Return-path: Received: from Chamillionaire.breakpoint.cc ([146.0.238.67]:43580 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753536AbdLGNGn (ORCPT ); Thu, 7 Dec 2017 08:06:43 -0500 Sender: netfilter-devel-owner@vger.kernel.org List-ID: This series further reduces size of the hook arrays by only resevering space for the hooks that are implemented/supported (e.g., arp only supports 3 different hook points as it lacks PRE/POST_ROUTING). Furthermore, add #ifdef guard to not declare arp/bridge/decnet hooks unless they are needed. At least Fedora has CONFIG_DECNET=n so this even reduces size for some distro kernels. I ran a few randconfig builds last night and it did not catch any build errors. Florian Westphal (3): netfilter: reduce hook array sizes to what is needed netfilter: don't allocate space for decnet hooks unless needed netfilter: don't allocate space for arp/bridge hooks unless needed include/linux/netfilter.h | 6 ++++++ include/net/netns/netfilter.h | 19 ++++++++++++++----- net/Kconfig | 1 + net/bridge/netfilter/Kconfig | 2 ++ net/ipv4/netfilter/Kconfig | 2 ++ net/netfilter/Kconfig | 6 ++++++ net/netfilter/core.c | 22 ++++++++++++++++++++++ net/netfilter/nf_queue.c | 2 ++ 8 files changed, 55 insertions(+), 5 deletions(-)