[GIT PULL nf-next] IPVS changes for v3.10

[GIT PULL nf-next] IPVS changes for v3.10

[Simon Horman]

Hi Pablo,

The following changes since commit 1cdb09056b27b2a06b06dc7187d2c33d57082d20:

  netfilter: nfnetlink_queue: use xor hash function to distribute instances (2013-03-15 12:38:40 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-next.git tags/ipvs-for-v3.10

for you to fetch changes up to b962abdc6531c8de837504ebc98139587162f223:

  ipvs: fix some sparse warnings (2013-03-19 21:18:38 +0900)

----------------------------------------------------------------
IPVS changes for v3.10 from Julian Anastasov

----------------------------------------------------------------
Julian Anastasov (2):
      ipvs: fix hashing in ip_vs_svc_hashkey
      ipvs: fix some sparse warnings

 include/net/ip_vs.h             |    2 +-
 net/netfilter/ipvs/ip_vs_core.c |    8 +-------
 net/netfilter/ipvs/ip_vs_ctl.c  |    8 +++++---
 net/netfilter/ipvs/ip_vs_est.c  |    2 +-
 4 files changed, 8 insertions(+), 12 deletions(-)

[PATCH 1/2] ipvs: fix hashing in ip_vs_svc_hashkey

[Simon Horman]

From: Julian Anastasov <ja@ssi.bg>

net is a pointer in host order, mix it properly
with other keys in network order. Fixes sparse warning.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 net/netfilter/ipvs/ip_vs_ctl.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index c68198b..a528178 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -271,16 +271,18 @@ ip_vs_svc_hashkey(struct net *net, int af, unsigned int proto,
 {
 	register unsigned int porth = ntohs(port);
 	__be32 addr_fold = addr->ip;
+	__u32 ahash;
 
 #ifdef CONFIG_IP_VS_IPV6
 	if (af == AF_INET6)
 		addr_fold = addr->ip6[0]^addr->ip6[1]^
 			    addr->ip6[2]^addr->ip6[3];
 #endif
-	addr_fold ^= ((size_t)net>>8);
+	ahash = ntohl(addr_fold);
+	ahash ^= ((size_t) net >> 8);
 
-	return (proto^ntohl(addr_fold)^(porth>>IP_VS_SVC_TAB_BITS)^porth)
-		& IP_VS_SVC_TAB_MASK;
+	return (proto ^ ahash ^ (porth >> IP_VS_SVC_TAB_BITS) ^ porth) &
+	       IP_VS_SVC_TAB_MASK;
 }
 
 /*
-- 
1.7.10.4

[PATCH 2/2] ipvs: fix some sparse warnings

[Simon Horman]

From: Julian Anastasov <ja@ssi.bg>

Add missing __percpu annotations and make ip_vs_net_id static.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 include/net/ip_vs.h             |    2 +-
 net/netfilter/ipvs/ip_vs_core.c |    8 +-------
 net/netfilter/ipvs/ip_vs_est.c  |    2 +-
 3 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 68c69d5..29bc055 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -459,7 +459,7 @@ struct ip_vs_estimator {
 struct ip_vs_stats {
 	struct ip_vs_stats_user	ustats;		/* statistics */
 	struct ip_vs_estimator	est;		/* estimator */
-	struct ip_vs_cpu_stats	*cpustats;	/* per cpu counters */
+	struct ip_vs_cpu_stats __percpu	*cpustats;	/* per cpu counters */
 	spinlock_t		lock;		/* spin lock */
 	struct ip_vs_stats_user	ustats0;	/* reset values */
 };
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 47edf5a..3e5e80b 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -69,10 +69,7 @@ EXPORT_SYMBOL(ip_vs_conn_put);
 EXPORT_SYMBOL(ip_vs_get_debug_level);
 #endif
 
-int ip_vs_net_id __read_mostly;
-#ifdef IP_VS_GENERIC_NETNS
-EXPORT_SYMBOL(ip_vs_net_id);
-#endif
+static int ip_vs_net_id __read_mostly;
 /* netns cnt used for uniqueness */
 static atomic_t ipvs_netns_cnt = ATOMIC_INIT(0);
 
@@ -1181,9 +1178,6 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
 						iph.len)))) {
 #ifdef CONFIG_IP_VS_IPV6
 				if (af == AF_INET6) {
-					struct net *net =
-						dev_net(skb_dst(skb)->dev);
-
 					if (!skb->dev)
 						skb->dev = net->loopback_dev;
 					icmpv6_send(skb,
diff --git a/net/netfilter/ipvs/ip_vs_est.c b/net/netfilter/ipvs/ip_vs_est.c
index 0fac601..6bee6d0 100644
--- a/net/netfilter/ipvs/ip_vs_est.c
+++ b/net/netfilter/ipvs/ip_vs_est.c
@@ -56,7 +56,7 @@
  * Make a summary from each cpu
  */
 static void ip_vs_read_cpu_stats(struct ip_vs_stats_user *sum,
-				 struct ip_vs_cpu_stats *stats)
+				 struct ip_vs_cpu_stats __percpu *stats)
 {
 	int i;
 
-- 
1.7.10.4

Re: [GIT PULL nf-next] IPVS changes for v3.10

[Pablo Neira Ayuso]

On Tue, Mar 19, 2013 at 09:43:46PM +0900, Simon Horman wrote:
> Hi Pablo,
> 
> The following changes since commit 1cdb09056b27b2a06b06dc7187d2c33d57082d20:
> 
>   netfilter: nfnetlink_queue: use xor hash function to distribute instances (2013-03-15 12:38:40 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-next.git tags/ipvs-for-v3.10

Pulled, thanks!