ipv6: Use universal hash for NDISC.

[deliverable/linux.git] / net / ipv4 / arp.c

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 96a164aa1367b9c4f48f58c860b4e785261dbd9c..59402be133f0b4cced6dac7d22fea61fcf89dda6 100644 (file)
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -112,11 +112,6 @@
 #include <net/arp.h>
 #include <net/ax25.h>
 #include <net/netrom.h>
-#if defined(CONFIG_ATM_CLIP) || defined(CONFIG_ATM_CLIP_MODULE)
-#include <net/atmclip.h>
-struct neigh_table *clip_tbl_hook;
-EXPORT_SYMBOL(clip_tbl_hook);
-#endif
 
 #include <asm/system.h>
 #include <linux/uaccess.h>
@@ -126,7 +121,7 @@ EXPORT_SYMBOL(clip_tbl_hook);
 /*
  *     Interface to generic neighbour cache.
  */
-static u32 arp_hash(const void *pkey, const struct net_device *dev, __u32 rnd);
+static u32 arp_hash(const void *pkey, const struct net_device *dev, __u32 *hash_rnd);
 static int arp_constructor(struct neighbour *neigh);
 static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb);
 static void arp_error_report(struct neighbour *neigh, struct sk_buff *skb);
@@ -164,7 +159,6 @@ static const struct neigh_ops arp_broken_ops = {
 
 struct neigh_table arp_tbl = {
        .family         = AF_INET,
-       .entry_size     = sizeof(struct neighbour) + 4,
        .key_len        = 4,
        .hash           = arp_hash,
        .constructor    = arp_constructor,
@@ -177,7 +171,7 @@ struct neigh_table arp_tbl = {
                .gc_staletime           = 60 * HZ,
                .reachable_time         = 30 * HZ,
                .delay_probe_time       = 5 * HZ,
-               .queue_len              = 3,
+               .queue_len_bytes        = 64*1024,
                .ucast_probes           = 3,
                .mcast_probes           = 3,
                .anycast_delay          = 1 * HZ,
@@ -221,9 +215,9 @@ int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir)
 
 static u32 arp_hash(const void *pkey,
                    const struct net_device *dev,
-                   __u32 hash_rnd)
+                   __u32 *hash_rnd)
 {
-       return arp_hashfn(*(u32 *)pkey, dev, hash_rnd);
+       return arp_hashfn(*(u32 *)pkey, dev, *hash_rnd);
 }
 
 static int arp_constructor(struct neighbour *neigh)
@@ -283,9 +277,9 @@ static int arp_constructor(struct neighbour *neigh)
                default:
                        break;
                case ARPHRD_ROSE:
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#if IS_ENABLED(CONFIG_AX25)
                case ARPHRD_AX25:
-#if defined(CONFIG_NETROM) || defined(CONFIG_NETROM_MODULE)
+#if IS_ENABLED(CONFIG_NETROM)
                case ARPHRD_NETROM:
 #endif
                        neigh->ops = &arp_broken_ops;
@@ -592,16 +586,18 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
        struct sk_buff *skb;
        struct arphdr *arp;
        unsigned char *arp_ptr;
+       int hlen = LL_RESERVED_SPACE(dev);
+       int tlen = dev->needed_tailroom;
 
        /*
         *      Allocate a buffer
         */
 
-       skb = alloc_skb(arp_hdr_len(dev) + LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
+       skb = alloc_skb(arp_hdr_len(dev) + hlen + tlen, GFP_ATOMIC);
        if (skb == NULL)
                return NULL;
 
-       skb_reserve(skb, LL_RESERVED_SPACE(dev));
+       skb_reserve(skb, hlen);
        skb_reset_network_header(skb);
        arp = (struct arphdr *) skb_put(skb, arp_hdr_len(dev));
        skb->dev = dev;
@@ -633,13 +629,13 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
                arp->ar_pro = htons(ETH_P_IP);
                break;
 
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#if IS_ENABLED(CONFIG_AX25)
        case ARPHRD_AX25:
                arp->ar_hrd = htons(ARPHRD_AX25);
                arp->ar_pro = htons(AX25_P_IP);
                break;
 
-#if defined(CONFIG_NETROM) || defined(CONFIG_NETROM_MODULE)
+#if IS_ENABLED(CONFIG_NETROM)
        case ARPHRD_NETROM:
                arp->ar_hrd = htons(ARPHRD_NETROM);
                arp->ar_pro = htons(AX25_P_IP);
@@ -647,13 +643,13 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
 #endif
 #endif
 
-#if defined(CONFIG_FDDI) || defined(CONFIG_FDDI_MODULE)
+#if IS_ENABLED(CONFIG_FDDI)
        case ARPHRD_FDDI:
                arp->ar_hrd = htons(ARPHRD_ETHER);
                arp->ar_pro = htons(ETH_P_IP);
                break;
 #endif
-#if defined(CONFIG_TR) || defined(CONFIG_TR_MODULE)
+#if IS_ENABLED(CONFIG_TR)
        case ARPHRD_IEEE802_TR:
                arp->ar_hrd = htons(ARPHRD_IEEE802);
                arp->ar_pro = htons(ETH_P_IP);
@@ -1040,7 +1036,7 @@ static int arp_req_set(struct net *net, struct arpreq *r,
                        return -EINVAL;
        }
        switch (dev->type) {
-#if defined(CONFIG_FDDI) || defined(CONFIG_FDDI_MODULE)
+#if IS_ENABLED(CONFIG_FDDI)
        case ARPHRD_FDDI:
                /*
                 * According to RFC 1390, FDDI devices should accept ARP
@@ -1286,7 +1282,7 @@ void __init arp_init(void)
 }
 
 #ifdef CONFIG_PROC_FS
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#if IS_ENABLED(CONFIG_AX25)
 
 /* ------------------------------------------------------------------------ */
 /*
@@ -1334,7 +1330,7 @@ static void arp_format_neigh_entry(struct seq_file *seq,
 
        read_lock(&n->lock);
        /* Convert hardware address to XX:XX:XX:XX ... form. */
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#if IS_ENABLED(CONFIG_AX25)
        if (hatype == ARPHRD_AX25 || hatype == ARPHRD_NETROM)
                ax2asc2((ax25_address *)n->ha, hbuffer);
        else {
@@ -1347,7 +1343,7 @@ static void arp_format_neigh_entry(struct seq_file *seq,
        if (k != 0)
                --k;
        hbuffer[k] = 0;
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#if IS_ENABLED(CONFIG_AX25)
        }
 #endif
        sprintf(tbuf, "%pI4", n->primary_key);