[PATCH] (4/5) irlap_open should take const string

[Stephen Hemminger <shemminger@xxxxxxxx>]

irlap_open should take a constant string because it copies
its argument.  Therefore, irtty_net_open doesn't have to make
a copy!

diff -Nru a/drivers/net/irda/irtty.c b/drivers/net/irda/irtty.c
--- a/drivers/net/irda/irtty.c  Fri Aug 15 13:16:43 2003
+++ b/drivers/net/irda/irtty.c  Fri Aug 15 13:16:43 2003
@@ -907,7 +907,6 @@
 {
        struct irtty_cb *self = (struct irtty_cb *) dev->priv;
        struct tty_struct *tty = self->tty;
-       char hwname[16];
 
        ASSERT(self != NULL, return -1;);
        ASSERT(self->magic == IRTTY_MAGIC, return -1;);
@@ -920,14 +919,11 @@
        /* Make sure we can receive more data */
        irtty_stop_receiver(self, FALSE);
 
-       /* Give self a hardware name */
-       sprintf(hwname, "%s", tty->name);
-
        /* 
         * Open new IrLAP layer instance, now that everything should be
         * initialized properly 
         */
-       self->irlap = irlap_open(dev, &self->qos, hwname);
+       self->irlap = irlap_open(dev, &self->qos, tty->name);
 
        return 0;
 }
diff -Nru a/include/net/irda/irda_device.h b/include/net/irda/irda_device.h
--- a/include/net/irda/irda_device.h    Fri Aug 15 13:16:43 2003
+++ b/include/net/irda/irda_device.h    Fri Aug 15 13:16:43 2003
@@ -209,7 +209,7 @@
  * We declare them here to avoid the driver pulling a whole bunch stack
  * headers they don't really need - Jean II */
 struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
-                           char *      hw_name);
+                           const char *hw_name);
 void irlap_close(struct irlap_cb *self);
 
 /* Interface to be uses by IrLAP */
diff -Nru a/include/net/irda/irlap.h b/include/net/irda/irlap.h
--- a/include/net/irda/irlap.h  Fri Aug 15 13:16:43 2003
+++ b/include/net/irda/irlap.h  Fri Aug 15 13:16:43 2003
@@ -217,7 +217,7 @@
 void irlap_cleanup(void);
 
 struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
-                           char *      hw_name);
+                           const char *hw_name);
 void irlap_close(struct irlap_cb *self);
 
 void irlap_connect_request(struct irlap_cb *self, __u32 daddr, 
diff -Nru a/net/irda/irlap.c b/net/irda/irlap.c
--- a/net/irda/irlap.c  Fri Aug 15 13:16:43 2003
+++ b/net/irda/irlap.c  Fri Aug 15 13:16:43 2003
@@ -110,7 +110,7 @@
  *
  */
 struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
-                           char *      hw_name)
+                           const char *hw_name)
 {
        struct irlap_cb *self;