[PATCH net-next 6/9] netconsole: move netpoll_take_ipv6() as netcons_take_ipv6()

[Breno Leitao]

Move netpoll_take_ipv6() to netconsole, and add netcons_ prefix.

Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx>
---
 drivers/net/netconsole.c | 44 +++++++++++++++++++++++++++++++++++++++++++-
 include/linux/netpoll.h  |  1 -
 net/core/netpoll.c       | 42 ------------------------------------------
 3 files changed, 43 insertions(+), 44 deletions(-)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 9506b1e1193fd..b6cbda4722d5b 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -40,6 +40,7 @@
 #include <linux/inetdevice.h>
 #include <linux/unaligned.h>
 #include <net/ip6_checksum.h>
+#include <net/addrconf.h>
 #include <linux/configfs.h>
 #include <linux/etherdevice.h>
 #include <linux/hex.h>
@@ -352,6 +353,47 @@ static void netconsole_skb_pool_flush(struct netconsole_target *nt)
 	skb_queue_purge_reason(&nt->skb_pool, SKB_CONSUMED);
 }
 
+/*
+ * Take the IPv6 from ndev and populate local_ip structure in netpoll
+ */
+static int netcons_take_ipv6(struct netpoll *np, struct net_device *ndev)
+{
+	char buf[MAC_ADDR_STR_LEN + 1];
+	int err = -EDESTADDRREQ;
+	struct inet6_dev *idev;
+
+	if (!IS_ENABLED(CONFIG_IPV6)) {
+		np_err(np, "IPv6 is not supported %s, aborting\n",
+		       egress_dev(np, buf, sizeof(buf)));
+		return -EINVAL;
+	}
+
+	idev = __in6_dev_get(ndev);
+	if (idev) {
+		struct inet6_ifaddr *ifp;
+
+		read_lock_bh(&idev->lock);
+		list_for_each_entry(ifp, &idev->addr_list, if_list) {
+			if (!!(ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL) !=
+				!!(ipv6_addr_type(&np->remote_ip.in6) & IPV6_ADDR_LINKLOCAL))
+				continue;
+			/* Got the IP, let's return */
+			np->local_ip.in6 = ifp->addr;
+			err = 0;
+			break;
+		}
+		read_unlock_bh(&idev->lock);
+	}
+	if (err) {
+		np_err(np, "no IPv6 address for %s, aborting\n",
+		       egress_dev(np, buf, sizeof(buf)));
+		return err;
+	}
+
+	np_info(np, "local IPv6 %pI6c\n", &np->local_ip.in6);
+	return 0;
+}
+
 /*
  * Take the IPv4 from ndev and populate local_ip structure in netpoll
  */
@@ -448,7 +490,7 @@ static int netcons_netpoll_setup(struct netpoll *np)
 			if (err)
 				goto put;
 		} else {
-			err = netpoll_take_ipv6(np, ndev);
+			err = netcons_take_ipv6(np, ndev);
 			if (err)
 				goto put;
 		}
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index e212cb86a9429..7736339f9880e 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -74,7 +74,6 @@ void netpoll_zap_completion_queue(void);
 unsigned int netpoll_get_carrier_timeout(void);
 void netpoll_wait_carrier(struct netpoll *np, struct net_device *ndev);
 char *egress_dev(struct netpoll *np, char *buf, size_t bufsz);
-int netpoll_take_ipv6(struct netpoll *np, struct net_device *ndev);
 
 #ifdef CONFIG_NETPOLL
 static inline void *netpoll_poll_lock(struct napi_struct *napi)
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 60c3faf9ea944..246aa2bfd7805 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -424,48 +424,6 @@ void netpoll_wait_carrier(struct netpoll *np, struct net_device *ndev)
 }
 EXPORT_SYMBOL_GPL(netpoll_wait_carrier);
 
-/*
- * Take the IPv6 from ndev and populate local_ip structure in netpoll
- */
-int netpoll_take_ipv6(struct netpoll *np, struct net_device *ndev)
-{
-	char buf[MAC_ADDR_STR_LEN + 1];
-	int err = -EDESTADDRREQ;
-	struct inet6_dev *idev;
-
-	if (!IS_ENABLED(CONFIG_IPV6)) {
-		np_err(np, "IPv6 is not supported %s, aborting\n",
-		       egress_dev(np, buf, sizeof(buf)));
-		return -EINVAL;
-	}
-
-	idev = __in6_dev_get(ndev);
-	if (idev) {
-		struct inet6_ifaddr *ifp;
-
-		read_lock_bh(&idev->lock);
-		list_for_each_entry(ifp, &idev->addr_list, if_list) {
-			if (!!(ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL) !=
-				!!(ipv6_addr_type(&np->remote_ip.in6) & IPV6_ADDR_LINKLOCAL))
-				continue;
-			/* Got the IP, let's return */
-			np->local_ip.in6 = ifp->addr;
-			err = 0;
-			break;
-		}
-		read_unlock_bh(&idev->lock);
-	}
-	if (err) {
-		np_err(np, "no IPv6 address for %s, aborting\n",
-		       egress_dev(np, buf, sizeof(buf)));
-		return err;
-	}
-
-	np_info(np, "local IPv6 %pI6c\n", &np->local_ip.in6);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(netpoll_take_ipv6);
-
 static void rcu_cleanup_netpoll_info(struct rcu_head *rcu_head)
 {
 	struct netpoll_info *npinfo =

-- 
2.53.0-Meta