IPv6: reassembly: replace magic number with macro definitions

Use macro to define high/low thresh value, refer to IPV6_FRAG_TIMEOUT.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>

3 files changed, 6 insertions, 4 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index ccab5946c830..299bbf5adfb6 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -246,6 +246,8 @@ extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb);
 int ip6_frag_nqueues(struct net *net);
 int ip6_frag_mem(struct net *net);
 
+#define IPV6_FRAG_HIGH_THRESH   262144          /* == 256*1024 */
+#define IPV6_FRAG_LOW_THRESH    196608          /* == 192*1024 */
 #define IPV6_FRAG_TIMEOUT       (60*HZ)         /* 60 seconds */
 
 extern int __ipv6_addr_type(const struct in6_addr *addr);
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 1030ce1e6c79..744ea49de356 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -666,8 +666,8 @@ int nf_ct_frag6_init(void)
         nf_frags.frag_expire = nf_ct_frag6_expire;
         nf_frags.secret_interval = 10 * 60 * HZ;
         nf_init_frags.timeout = IPV6_FRAG_TIMEOUT;
-        nf_init_frags.high_thresh = 256 * 1024;
-        nf_init_frags.low_thresh = 192 * 1024;
+        nf_init_frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
+        nf_init_frags.low_thresh = IPV6_FRAG_LOW_THRESH;
         inet_frags_init_net(&nf_init_frags);
         inet_frags_init(&nf_frags);
 
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 2cddea3bd6be..15bb122e1ce4 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -747,8 +747,8 @@ static inline void ip6_frags_sysctl_unregister(void)
 
 static int ipv6_frags_init_net(struct net *net)
 {
-        net->ipv6.frags.high_thresh = 256 * 1024;
-        net->ipv6.frags.low_thresh = 192 * 1024;
+        net->ipv6.frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
+        net->ipv6.frags.low_thresh = IPV6_FRAG_LOW_THRESH;
         net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT;
 
         inet_frags_init_net(&net->ipv6.frags);