[PATCH net-next] net: fix some compiler warning in net/core/neighbour.c

From: Cong Wang <redacted>

net/core/neighbour.c:65:12: warning: 'zero' defined but not used [-Wunused-variable]
net/core/neighbour.c:66:12: warning: 'unres_qlen_max' defined but not used [-Wunused-variable]

These variables are only used when CONFIG_SYSCTL is defined,
so move them under #ifdef CONFIG_SYSCTL.

Reported-by: Fengguang Wu <redacted>
Cc: Shan Wei <redacted>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <redacted>

---

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 36fc692..c815f28 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c

@@ -62,9 +62,6 @@ static void __neigh_notify(struct neighbour *n, int type, int flags);
 static void neigh_update_notify(struct neighbour *neigh);
 static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev);
 
-static int zero;
-static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN);
-
 static struct neigh_table *neigh_tables;
 #ifdef CONFIG_PROC_FS
 static const struct file_operations neigh_stat_seq_fops;

@@ -2772,6 +2769,8 @@ EXPORT_SYMBOL(neigh_app_ns);
 #endif /* CONFIG_ARPD */
 
 #ifdef CONFIG_SYSCTL
+static int zero;
+static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN);
 
 static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
 			   size_t *lenp, loff_t *ppos)

Cong Wang said, at 2012/12/6 10:04:

From: Cong Wang <redacted>

net/core/neighbour.c:65:12: warning: 'zero' defined but not used [-Wunused-variable]
net/core/neighbour.c:66:12: warning: 'unres_qlen_max' defined but not used [-Wunused-variable]

These variables are only used when CONFIG_SYSCTL is defined,
so move them under #ifdef CONFIG_SYSCTL.

Reported-by: Fengguang Wu <redacted>
Cc: Shan Wei <redacted>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <redacted>

Rapid response~~~ :-)
Same patch in my tree，and i see your patch when prepare to submit it.

Acked-by: Shan Wei <redacted>


Best Regards
Shan Wei

From: Shan Wei <redacted>
Date: Thu, 06 Dec 2012 10:39:00 +0800

Cong Wang said, at 2012/12/6 10:04:

quoted

From: Cong Wang <redacted>

net/core/neighbour.c:65:12: warning: 'zero' defined but not used [-Wunused-variable]
net/core/neighbour.c:66:12: warning: 'unres_qlen_max' defined but not used [-Wunused-variable]

These variables are only used when CONFIG_SYSCTL is defined,
so move them under #ifdef CONFIG_SYSCTL.

Reported-by: Fengguang Wu <redacted>
Cc: Shan Wei <redacted>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <redacted>

Rapid response~~~ :-)
Same patch in my tree，and i see your patch when prepare to submit it.

Acked-by: Shan Wei <redacted>

Applied.