[PPPOX]: Fix assignment into const proto_ops.

And actually, with this, the whole pppox layer can basically
be removed and subsumed into pppoe.c, no other pppox sub-protocol
implementation exists and we've had this thing for at least 4
years.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 7 insertions, 12 deletions

diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 71e303b28646..9369f811075d 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -85,7 +85,7 @@ static int pppoe_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 static int pppoe_xmit(struct ppp_channel *chan, struct sk_buff *skb);
 static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb);
 
-static struct proto_ops pppoe_ops;
+static const struct proto_ops pppoe_ops;
 static DEFINE_RWLOCK(pppoe_hash_lock);
 
 static struct ppp_channel_ops pppoe_chan_ops;
@@ -1063,9 +1063,7 @@ static int __init pppoe_proc_init(void)
 static inline int pppoe_proc_init(void) { return 0; }
 #endif /* CONFIG_PROC_FS */
 
-/* ->ioctl are set at pppox_create */
-
-static struct proto_ops pppoe_ops = {
+static const struct proto_ops pppoe_ops = {
     .family		= AF_PPPOX,
     .owner		= THIS_MODULE,
     .release		= pppoe_release,
@@ -1081,7 +1079,8 @@ static struct proto_ops pppoe_ops = {
     .getsockopt		= sock_no_getsockopt,
     .sendmsg		= pppoe_sendmsg,
     .recvmsg		= pppoe_recvmsg,
-    .mmap		= sock_no_mmap
+    .mmap		= sock_no_mmap,
+    .ioctl		= pppox_ioctl,
 };
 
 static struct pppox_proto pppoe_proto = {
diff --git a/drivers/net/pppox.c b/drivers/net/pppox.c
index 0c1e114527fb..9315046b3f55 100644
--- a/drivers/net/pppox.c
+++ b/drivers/net/pppox.c
@@ -68,8 +68,7 @@ EXPORT_SYMBOL(register_pppox_proto);
 EXPORT_SYMBOL(unregister_pppox_proto);
 EXPORT_SYMBOL(pppox_unbind_sock);
 
-static int pppox_ioctl(struct socket* sock, unsigned int cmd, 
-		       unsigned long arg)
+int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	struct sock *sk = sock->sk;
 	struct pppox_sock *po = pppox_sk(sk);
@@ -105,6 +104,7 @@ static int pppox_ioctl(struct socket* sock, unsigned int cmd,
 	return rc;
 }
 
+EXPORT_SYMBOL(pppox_ioctl);
 
 static int pppox_create(struct socket *sock, int protocol)
 {
@@ -119,11 +119,7 @@ static int pppox_create(struct socket *sock, int protocol)
 		goto out;
 
 	rc = pppox_protos[protocol]->create(sock);
-	if (!rc) {
-		/* We get to set the ioctl handler. */
-		/* For everything else, pppox is just a shell. */
-		sock->ops->ioctl = pppox_ioctl;
-	}
+
 	module_put(pppox_protos[protocol]->owner);
 out:
 	return rc;