netdev: use const for some name functions

dev_change_name and netdev_drivername should use const char on
parameters that are read-only input values. The strcpy to newname is
not needed since newname is not used later in function.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 5 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index a90737fe2472..64f0d5b7cdfc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -890,7 +890,7 @@ int dev_alloc_name(struct net_device *dev, const char *name)
  *      Change name of a device, can pass format strings "eth%d".
  *      for wildcarding.
  */
-int dev_change_name(struct net_device *dev, char *newname)
+int dev_change_name(struct net_device *dev, const char *newname)
 {
         char oldname[IFNAMSIZ];
         int err = 0;
@@ -916,7 +916,6 @@ int dev_change_name(struct net_device *dev, char *newname)
                 err = dev_alloc_name(dev, newname);
                 if (err < 0)
                         return err;
-                strcpy(newname, dev->name);
         }
         else if (__dev_get_by_name(net, newname))
                 return -EEXIST;
@@ -4754,10 +4753,10 @@ err_name:
         return -ENOMEM;
 }
 
-char *netdev_drivername(struct net_device *dev, char *buffer, int len)
+char *netdev_drivername(const struct net_device *dev, char *buffer, int len)
 {
-        struct device_driver *driver;
-        struct device *parent;
+        const struct device_driver *driver;
+        const struct device *parent;
 
         if (len <= 0 || !buffer)
                 return buffer;