netdev - [PATCH 1/3] net: core: export dev_alloc_name

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Date:   Tue, 21 Nov 2017 01:34:37 +0100
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Rasmus Villemoes <linux@...musvillemoes.dk>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] net: core: export dev_alloc_name_ns

dev_alloc_name_ns and dev_get_valid_name now do exactly the same
thing. Let's expose this functionality as dev_alloc_name_ns
(obviously, a core function like this won't return an invalid
name...).

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 include/linux/netdevice.h | 1 +
 net/core/dev.c            | 7 ++++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6b274bfe489f..e249d3d0ff85 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2447,6 +2447,7 @@ struct net_device *dev_get_by_name(struct net *net, const char *name);
 struct net_device *dev_get_by_name_rcu(struct net *net, const char *name);
 struct net_device *__dev_get_by_name(struct net *net, const char *name);
 int dev_alloc_name(struct net_device *dev, const char *name);
+int dev_alloc_name_ns(struct net *net, struct net_device *dev, const char *name);
 int dev_open(struct net_device *dev);
 void dev_close(struct net_device *dev);
 void dev_close_many(struct list_head *head, bool unlink);
diff --git a/net/core/dev.c b/net/core/dev.c
index 8ee29f4f5fa9..9575e7329823 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1109,9 +1109,9 @@ static int __dev_alloc_name(struct net *net, const char *name, char *buf)
 	return p ? -ENFILE : -EEXIST;
 }
 
-static int dev_alloc_name_ns(struct net *net,
-			     struct net_device *dev,
-			     const char *name)
+int dev_alloc_name_ns(struct net *net,
+		      struct net_device *dev,
+		      const char *name)
 {
 	char buf[IFNAMSIZ];
 	int ret;
@@ -1122,6 +1122,7 @@ static int dev_alloc_name_ns(struct net *net,
 		strlcpy(dev->name, buf, IFNAMSIZ);
 	return ret;
 }
+EXPORT_SYMBOL(dev_alloc_name_ns);
 
 /**
  *	dev_alloc_name - allocate a name for a device
-- 
2.11.0