[NETFILTER]: Decrease number of pointer derefs in nf_conntrack_core.c

Benefits of the patch:
 - Fewer pointer dereferences should make the code slightly faster.
 - Size of generated code is smaller
 - improved readability

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index a7c7b490cf22..0c5b01d732d8 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1129,6 +1129,7 @@ static inline int refresh_timer(struct nf_conntrack_expect *i)
 int nf_conntrack_expect_related(struct nf_conntrack_expect *expect)
 {
         struct nf_conntrack_expect *i;
+        struct nf_conn *master = expect->master;
         int ret;
 
         DEBUGP("nf_conntrack_expect_related %p\n", related_to);
@@ -1149,9 +1150,9 @@ int nf_conntrack_expect_related(struct nf_conntrack_expect *expect)
                 }
         }
         /* Will be over limit? */
-        if (expect->master->helper->max_expected && 
-            expect->master->expecting >= expect->master->helper->max_expected)
-                evict_oldest_expect(expect->master);
+        if (master->helper->max_expected && 
+            master->expecting >= master->helper->max_expected)
+                evict_oldest_expect(master);
 
         nf_conntrack_expect_insert(expect);
         nf_conntrack_expect_event(IPEXP_NEW, expect);