Subject: [PATCH] net: ping: fix build failure

From: Vasiliy Kulikov <[email-masked]>
Date: Tue, 17 May 2011 14:16:56 +0400

On Mon, May 16, 2011 at 15:38 -0400, David Miller wrote:
> From: Randy Dunlap <[email-masked]>
> Date: Mon, 16 May 2011 12:35:34 -0700
> 
> > On Mon, 16 May 2011 15:10:19 +1000 Stephen Rothwell wrote:
> > when CONFIG_PROC_SYSCTL is not enabled:
> > 
> > ping.c:(.text+0x52af3): undefined reference to `inet_get_ping_group_range_net'
> 
> Vasiliy, please fix this.

I wonder whether there is any way to test such unusual configurations?
Only randconfig or are there any (partly-)automated tools for it?

[PATCH] net: ping: fix build failure

If CONFIG_PROC_SYSCTL=n the building process fails:

    ping.c:(.text+0x52af3): undefined reference to `inet_get_ping_group_range_net'

Moved inet_get_ping_group_range_net() to ping.c.

Reported-by: Randy Dunlap <[email-masked]>
Signed-off-by: Vasiliy Kulikov <[email-masked]>
---
 include/net/ping.h         |    2 --
 net/ipv4/ping.c            |   13 +++++++++++++
 net/ipv4/sysctl_net_ipv4.c |   12 ------------
 3 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/include/net/ping.h b/include/net/ping.h
index 23062c3..682b5ae 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -44,8 +44,6 @@ extern struct proto ping_prot;
 extern void ping_rcv(struct sk_buff *);
 extern void ping_err(struct sk_buff *, u32 info);
 
-extern void inet_get_ping_group_range_net(struct net *net, unsigned int *low, unsigned int *high);
-
 #ifdef CONFIG_PROC_FS
 extern int __init ping_proc_init(void);
 extern void ping_proc_exit(void);
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 7041d09..3635975 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -188,6 +188,19 @@ exit:
 	return sk;
 }
 
+static void inet_get_ping_group_range_net(struct net *net, gid_t *low, gid_t *high)
+{
+	gid_t *data = net->ipv4.sysctl_ping_group_range;
+	unsigned seq;
+	do {
+		seq = read_seqbegin(&sysctl_local_ports.lock);
+
+		*low = data[0];
+		*high = data[1];
+	} while (read_seqretry(&sysctl_local_ports.lock, seq));
+}
+
+
 static int ping_init_sock(struct sock *sk)
 {
 	struct net *net = sock_net(sk);
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 28e8273..57d0752 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -73,18 +73,6 @@ static int ipv4_local_port_range(ctl_table *table, int write,
 }

-void inet_get_ping_group_range_net(struct net *net, gid_t *low, gid_t *high)
-{
-	gid_t *data = net->ipv4.sysctl_ping_group_range;
-	unsigned seq;
-	do {
-		seq = read_seqbegin(&sysctl_local_ports.lock);
-
-		*low = data[0];
-		*high = data[1];
-	} while (read_seqretry(&sysctl_local_ports.lock, seq));
-}
-
 void inet_get_ping_group_range_table(struct ctl_table *table, gid_t *low, gid_t *high)
 {
 	gid_t *data = table->data;
-- 
1.7.0.4