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authorDenis V. Lunev <den@openvz.org>2008-01-14 23:05:55 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:02:12 -0800
commit9bd85e32644d4d3744117b0a196ad4382f8acf35 (patch)
treed25bb624d799e787f9de589f317001ee8b2357aa
parent06f0511df1b3b32fc8e0840514d4b207150f1fa7 (diff)
[IPV4]: Remove extra argument from arp_ignore.
arp_ignore has two arguments: dev & in_dev. dev is used for inet_confirm_addr calling only. inet_confirm_addr, in turn, either gets in_dev from the device passed or iterates over all network devices if the device passed is NULL. It seems logical to directly pass in_dev into inet_confirm_addr. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/linux/inetdevice.h2
-rw-r--r--net/ipv4/arp.c11
-rw-r--r--net/ipv4/devinet.c17
3 files changed, 12 insertions, 18 deletions
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index b3c5081de02..45f37310753 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -135,7 +135,7 @@ extern int devinet_ioctl(unsigned int cmd, void __user *);
extern void devinet_init(void);
extern struct in_device *inetdev_by_index(int);
extern __be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope);
-extern __be32 inet_confirm_addr(const struct net_device *dev, __be32 dst, __be32 local, int scope);
+extern __be32 inet_confirm_addr(struct in_device *in_dev, __be32 dst, __be32 local, int scope);
extern struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix, __be32 mask);
static __inline__ int inet_ifa_match(__be32 addr, struct in_ifaddr *ifa)
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 357e8987146..6f0827b2b15 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -382,8 +382,7 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
read_unlock_bh(&neigh->lock);
}
-static int arp_ignore(struct in_device *in_dev, struct net_device *dev,
- __be32 sip, __be32 tip)
+static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)
{
int scope;
@@ -403,7 +402,7 @@ static int arp_ignore(struct in_device *in_dev, struct net_device *dev,
case 3: /* Do not reply for scope host addresses */
sip = 0;
scope = RT_SCOPE_LINK;
- dev = NULL;
+ in_dev = NULL;
break;
case 4: /* Reserved */
case 5:
@@ -415,7 +414,7 @@ static int arp_ignore(struct in_device *in_dev, struct net_device *dev,
default:
return 0;
}
- return !inet_confirm_addr(dev, sip, tip, scope);
+ return !inet_confirm_addr(in_dev, sip, tip, scope);
}
static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)
@@ -807,7 +806,7 @@ static int arp_process(struct sk_buff *skb)
if (sip == 0) {
if (arp->ar_op == htons(ARPOP_REQUEST) &&
inet_addr_type(&init_net, tip) == RTN_LOCAL &&
- !arp_ignore(in_dev,dev,sip,tip))
+ !arp_ignore(in_dev, sip, tip))
arp_send(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip, sha,
dev->dev_addr, sha);
goto out;
@@ -825,7 +824,7 @@ static int arp_process(struct sk_buff *skb)
int dont_send = 0;
if (!dont_send)
- dont_send |= arp_ignore(in_dev,dev,sip,tip);
+ dont_send |= arp_ignore(in_dev,sip,tip);
if (!dont_send && IN_DEV_ARPFILTER(in_dev))
dont_send |= arp_filter(sip,tip,dev);
if (!dont_send)
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 03db15b1030..dc1665a2b07 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -968,24 +968,19 @@ static __be32 confirm_addr_indev(struct in_device *in_dev, __be32 dst,
/*
* Confirm that local IP address exists using wildcards:
- * - dev: only on this interface, 0=any interface
+ * - in_dev: only on this interface, 0=any interface
* - dst: only in the same subnet as dst, 0=any dst
* - local: address, 0=autoselect the local address
* - scope: maximum allowed scope value for the local address
*/
-__be32 inet_confirm_addr(const struct net_device *dev, __be32 dst, __be32 local, int scope)
+__be32 inet_confirm_addr(struct in_device *in_dev,
+ __be32 dst, __be32 local, int scope)
{
__be32 addr = 0;
- struct in_device *in_dev;
-
- if (dev) {
- rcu_read_lock();
- if ((in_dev = __in_dev_get_rcu(dev)))
- addr = confirm_addr_indev(in_dev, dst, local, scope);
- rcu_read_unlock();
+ struct net_device *dev;
- return addr;
- }
+ if (in_dev != NULL)
+ return confirm_addr_indev(in_dev, dst, local, scope);
read_lock(&dev_base_lock);
rcu_read_lock();