From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: [PATCH 10/26] xfrm: Const'ify address args to hash helpers. Date: Wed, 23 Feb 2011 23:13:20 -0800 (PST) Message-ID: <20110223.231320.260084505.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:37475 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932570Ab1BXHMo (ORCPT ); Thu, 24 Feb 2011 02:12:44 -0500 Received: from localhost (localhost [127.0.0.1]) by sunset.davemloft.net (Postfix) with ESMTP id 18CA624C088 for ; Wed, 23 Feb 2011 23:13:21 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: Signed-off-by: David S. Miller --- net/xfrm/xfrm_hash.h | 32 +++++++++++++++++++------------- net/xfrm/xfrm_policy.c | 9 +++++++-- 2 files changed, 26 insertions(+), 15 deletions(-) diff --git a/net/xfrm/xfrm_hash.h b/net/xfrm/xfrm_hash.h index 8e69533..7199d78 100644 --- a/net/xfrm/xfrm_hash.h +++ b/net/xfrm/xfrm_hash.h @@ -4,29 +4,32 @@ #include #include -static inline unsigned int __xfrm4_addr_hash(xfrm_address_t *addr) +static inline unsigned int __xfrm4_addr_hash(const xfrm_address_t *addr) { return ntohl(addr->a4); } -static inline unsigned int __xfrm6_addr_hash(xfrm_address_t *addr) +static inline unsigned int __xfrm6_addr_hash(const xfrm_address_t *addr) { return ntohl(addr->a6[2] ^ addr->a6[3]); } -static inline unsigned int __xfrm4_daddr_saddr_hash(xfrm_address_t *daddr, xfrm_address_t *saddr) +static inline unsigned int __xfrm4_daddr_saddr_hash(const xfrm_address_t *daddr, + const xfrm_address_t *saddr) { u32 sum = (__force u32)daddr->a4 + (__force u32)saddr->a4; return ntohl((__force __be32)sum); } -static inline unsigned int __xfrm6_daddr_saddr_hash(xfrm_address_t *daddr, xfrm_address_t *saddr) +static inline unsigned int __xfrm6_daddr_saddr_hash(const xfrm_address_t *daddr, + const xfrm_address_t *saddr) { return ntohl(daddr->a6[2] ^ daddr->a6[3] ^ saddr->a6[2] ^ saddr->a6[3]); } -static inline unsigned int __xfrm_dst_hash(xfrm_address_t *daddr, xfrm_address_t *saddr, +static inline unsigned int __xfrm_dst_hash(const xfrm_address_t *daddr, + const xfrm_address_t *saddr, u32 reqid, unsigned short family, unsigned int hmask) { @@ -42,8 +45,8 @@ static inline unsigned int __xfrm_dst_hash(xfrm_address_t *daddr, xfrm_address_t return (h ^ (h >> 16)) & hmask; } -static inline unsigned __xfrm_src_hash(xfrm_address_t *daddr, - xfrm_address_t *saddr, +static inline unsigned __xfrm_src_hash(const xfrm_address_t *daddr, + const xfrm_address_t *saddr, unsigned short family, unsigned int hmask) { @@ -60,8 +63,8 @@ static inline unsigned __xfrm_src_hash(xfrm_address_t *daddr, } static inline unsigned int -__xfrm_spi_hash(xfrm_address_t *daddr, __be32 spi, u8 proto, unsigned short family, - unsigned int hmask) +__xfrm_spi_hash(const xfrm_address_t *daddr, __be32 spi, u8 proto, + unsigned short family, unsigned int hmask) { unsigned int h = (__force u32)spi ^ proto; switch (family) { @@ -80,10 +83,11 @@ static inline unsigned int __idx_hash(u32 index, unsigned int hmask) return (index ^ (index >> 8)) & hmask; } -static inline unsigned int __sel_hash(struct xfrm_selector *sel, unsigned short family, unsigned int hmask) +static inline unsigned int __sel_hash(const struct xfrm_selector *sel, + unsigned short family, unsigned int hmask) { - xfrm_address_t *daddr = &sel->daddr; - xfrm_address_t *saddr = &sel->saddr; + const xfrm_address_t *daddr = &sel->daddr; + const xfrm_address_t *saddr = &sel->saddr; unsigned int h = 0; switch (family) { @@ -107,7 +111,9 @@ static inline unsigned int __sel_hash(struct xfrm_selector *sel, unsigned short return h & hmask; } -static inline unsigned int __addr_hash(xfrm_address_t *daddr, xfrm_address_t *saddr, unsigned short family, unsigned int hmask) +static inline unsigned int __addr_hash(const xfrm_address_t *daddr, + const xfrm_address_t *saddr, + unsigned short family, unsigned int hmask) { unsigned int h = 0; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index eb76da7..0770b3a 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -311,7 +311,9 @@ static inline unsigned int idx_hash(struct net *net, u32 index) return __idx_hash(index, net->xfrm.policy_idx_hmask); } -static struct hlist_head *policy_hash_bysel(struct net *net, struct xfrm_selector *sel, unsigned short family, int dir) +static struct hlist_head *policy_hash_bysel(struct net *net, + const struct xfrm_selector *sel, + unsigned short family, int dir) { unsigned int hmask = net->xfrm.policy_bydst[dir].hmask; unsigned int hash = __sel_hash(sel, family, hmask); @@ -321,7 +323,10 @@ static struct hlist_head *policy_hash_bysel(struct net *net, struct xfrm_selecto net->xfrm.policy_bydst[dir].table + hash); } -static struct hlist_head *policy_hash_direct(struct net *net, xfrm_address_t *daddr, xfrm_address_t *saddr, unsigned short family, int dir) +static struct hlist_head *policy_hash_direct(struct net *net, + const xfrm_address_t *daddr, + const xfrm_address_t *saddr, + unsigned short family, int dir) { unsigned int hmask = net->xfrm.policy_bydst[dir].hmask; unsigned int hash = __addr_hash(daddr, saddr, family, hmask); -- 1.7.4.1