mac80211: Change WARN_ON to WARN_ON_ONCE

A warning would be printed for every packet that
is transmitted if the rate control information isn't
setup. Change this to WARN_ON_ONCE.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 21951bac1ef7..541e3e64493d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -563,8 +563,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
                                 IEEE80211_TX_RC_USE_RTS_CTS;
 
                 /* RC is busted */
-                if (WARN_ON(info->control.rates[i].idx >=
-                            sband->n_bitrates)) {
+                if (WARN_ON_ONCE(info->control.rates[i].idx >=
+                                 sband->n_bitrates)) {
                         info->control.rates[i].idx = -1;
                         continue;
                 }