mac80211: make rc_pid_fop_events static

No need to not be.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
index 91818e4..88b8dc9 100644
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -197,7 +197,7 @@
 
 #undef RC_PID_PRINT_BUF_SIZE
 
-struct file_operations rc_pid_fop_events = {
+static struct file_operations rc_pid_fop_events = {
 	.owner = THIS_MODULE,
 	.read = rate_control_pid_events_read,
 	.poll = rate_control_pid_events_poll,