From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 06/22] netfilter: optimize nf_inet_addr_cmp
Date: Mon, 15 Apr 2019 19:00:12 +0200 [thread overview]
Message-ID: <20190415170028.3470-7-pablo@netfilter.org> (raw)
In-Reply-To: <20190415170028.3470-1-pablo@netfilter.org>
From: Li RongQing <lirongqing@baidu.com>
optimize nf_inet_addr_cmp by 64bit xor computation
similar to ipv6_addr_equal()
Signed-off-by: Yuan Linsi <yuanlinsi01@baidu.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/linux/netfilter.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 72cb19c3db6a..4e0145ea033e 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -24,10 +24,17 @@ static inline int NF_DROP_GETERR(int verdict)
static inline int nf_inet_addr_cmp(const union nf_inet_addr *a1,
const union nf_inet_addr *a2)
{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+ const unsigned long *ul1 = (const unsigned long *)a1;
+ const unsigned long *ul2 = (const unsigned long *)a2;
+
+ return ((ul1[0] ^ ul2[0]) | (ul1[1] ^ ul2[1])) == 0UL;
+#else
return a1->all[0] == a2->all[0] &&
a1->all[1] == a2->all[1] &&
a1->all[2] == a2->all[2] &&
a1->all[3] == a2->all[3];
+#endif
}
static inline void nf_inet_addr_mask(const union nf_inet_addr *a1,
--
2.11.0
next prev parent reply other threads:[~2019-04-15 17:01 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-15 17:00 [PATCH 00/22] Netfilter/IPVS updates for net-next Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 01/22] time: Introduce jiffies64_to_msecs() Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 02/22] netfilter: nf_tables: remove unused parameter ctx Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 03/22] netfilter: nft_redir: Make nft_redir_dump static Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 04/22] netfilter: nf_flowtable: skip device lookup from interface index Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 05/22] ipvs: allow tunneling with gue encapsulation Pablo Neira Ayuso
2019-04-15 17:00 ` Pablo Neira Ayuso [this message]
2019-04-15 17:00 ` [PATCH 07/22] netfilter: nat: add inet family nat support Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 08/22] netfilter: nf_tables: merge route type into core Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 09/22] netfilter: replace NF_NAT_NEEDED with IS_ENABLED(CONFIG_NF_NAT) Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 10/22] netfilter: nft_masq: add inet support Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 11/22] netfilter: nft_redir: " Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 12/22] kselftests: extend nft_nat with inet family based nat hooks Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 13/22] netfilter: nft_osf: Add version option support Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 14/22] netfilter: make two functions static Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 15/22] netfilter: nf_nat: merge ip/ip6 masquerade headers Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 16/22] netfilter: x_tables: merge ip and ipv6 masquerade modules Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 17/22] netfilter: nf_nat_masquerade: unify ipv4/6 notifier registration Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 18/22] selftests: netfilter: add ebtables broute test case Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 19/22] bridge: reduce size of input cb to 16 bytes Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 20/22] bridge: netfilter: unroll NF_HOOK helper in bridge input path Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 21/22] bridge: broute: make broute a real ebtables table Pablo Neira Ayuso
2019-04-15 17:00 ` [PATCH 22/22] bridge: only include nf_queue.h if needed Pablo Neira Ayuso
2019-04-15 19:14 ` [PATCH 00/22] Netfilter/IPVS updates for net-next David Miller
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