wext: constify extra argument to wireless_send_event

This is never changed by the function, so can be marked const.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index 51b9a37de991..2b3fbbb8669e 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -443,7 +443,7 @@ extern int dev_get_wireless_info(char * buffer, char **start, off_t offset,
 extern void wireless_send_event(struct net_device *     dev,
                                 unsigned int            cmd,
                                 union iwreq_data *      wrqu,
-                                char *                  extra);
+                                const char *            extra);
 
 /* We may need a function to send a stream of events to user space.
  * More on that later... */
diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 5da07e079c20..425f7d58b961 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -1376,7 +1376,7 @@ static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
 void wireless_send_event(struct net_device *    dev,
                          unsigned int           cmd,
                          union iwreq_data *     wrqu,
-                         char *                 extra)
+                         const char *           extra)
 {
         const struct iw_ioctl_description *     descr = NULL;
         int extra_len = 0;