[IPV4]: annotate rt_hash_code() users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -261,6 +261,10 @@ static unsigned int rt_hash_code(u32 daddr, u32 saddr)
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& rt_hash_mask);
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}
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#define rt_hash(daddr, saddr, idx) \
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rt_hash_code((__force u32)(__be32)(daddr),\
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(__force u32)(__be32)(saddr) ^ ((idx) << 5))
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#ifdef CONFIG_PROC_FS
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struct rt_cache_iter_state {
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int bucket;
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@ -1147,8 +1151,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
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for (i = 0; i < 2; i++) {
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for (k = 0; k < 2; k++) {
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unsigned hash = rt_hash_code(daddr,
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skeys[i] ^ (ikeys[k] << 5));
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unsigned hash = rt_hash(daddr, skeys[i], ikeys[k]);
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rthp=&rt_hash_table[hash].chain;
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@ -1260,9 +1263,8 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
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ret = NULL;
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} else if ((rt->rt_flags & RTCF_REDIRECTED) ||
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rt->u.dst.expires) {
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unsigned hash = rt_hash_code(rt->fl.fl4_dst,
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rt->fl.fl4_src ^
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(rt->fl.oif << 5));
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unsigned hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
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rt->fl.oif);
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#if RT_CACHE_DEBUG >= 1
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printk(KERN_DEBUG "ip_rt_advice: redirect to "
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"%u.%u.%u.%u/%02x dropped\n",
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@ -1405,7 +1407,7 @@ unsigned short ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mtu)
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return 0;
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for (i = 0; i < 2; i++) {
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unsigned hash = rt_hash_code(daddr, skeys[i]);
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unsigned hash = rt_hash(daddr, skeys[i], 0);
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rcu_read_lock();
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for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
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@ -1665,7 +1667,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
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RT_CACHE_STAT_INC(in_slow_mc);
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in_dev_put(in_dev);
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hash = rt_hash_code(daddr, saddr ^ (dev->ifindex << 5));
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hash = rt_hash(daddr, saddr, dev->ifindex);
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return rt_intern_hash(hash, rth, (struct rtable**) &skb->dst);
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e_nobufs:
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@ -1830,7 +1832,7 @@ static inline int ip_mkroute_input_def(struct sk_buff *skb,
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return err;
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/* put it into the cache */
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hash = rt_hash_code(daddr, saddr ^ (fl->iif << 5));
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hash = rt_hash(daddr, saddr, fl->iif);
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return rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
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}
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@ -1871,7 +1873,7 @@ static inline int ip_mkroute_input(struct sk_buff *skb,
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return err;
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/* put it into the cache */
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hash = rt_hash_code(daddr, saddr ^ (fl->iif << 5));
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hash = rt_hash(daddr, saddr, fl->iif);
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err = rt_intern_hash(hash, rth, &rtres);
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if (err)
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return err;
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@ -2048,7 +2050,7 @@ local_input:
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rth->rt_flags &= ~RTCF_LOCAL;
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}
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rth->rt_type = res.type;
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hash = rt_hash_code(daddr, saddr ^ (fl.iif << 5));
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hash = rt_hash(daddr, saddr, fl.iif);
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err = rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
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goto done;
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@ -2095,7 +2097,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
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int iif = dev->ifindex;
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tos &= IPTOS_RT_MASK;
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hash = rt_hash_code(daddr, saddr ^ (iif << 5));
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hash = rt_hash(daddr, saddr, iif);
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rcu_read_lock();
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for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
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@ -2293,8 +2295,7 @@ static inline int ip_mkroute_output_def(struct rtable **rp,
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int err = __mkroute_output(&rth, res, fl, oldflp, dev_out, flags);
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unsigned hash;
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if (err == 0) {
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hash = rt_hash_code(oldflp->fl4_dst,
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oldflp->fl4_src ^ (oldflp->oif << 5));
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hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif);
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err = rt_intern_hash(hash, rth, rp);
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}
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@ -2336,9 +2337,8 @@ static inline int ip_mkroute_output(struct rtable** rp,
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if (err != 0)
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goto cleanup;
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hash = rt_hash_code(oldflp->fl4_dst,
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oldflp->fl4_src ^
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(oldflp->oif << 5));
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hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src,
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oldflp->oif);
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err = rt_intern_hash(hash, rth, rp);
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/* forward hop information to multipath impl. */
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@ -2567,7 +2567,7 @@ int __ip_route_output_key(struct rtable **rp, const struct flowi *flp)
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unsigned hash;
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struct rtable *rth;
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hash = rt_hash_code(flp->fl4_dst, flp->fl4_src ^ (flp->oif << 5));
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hash = rt_hash(flp->fl4_dst, flp->fl4_src, flp->oif);
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rcu_read_lock_bh();
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for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
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