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>
diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 5da07e0..425f7d5 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -1376,7 +1376,7 @@
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;