wireless: restrict to 32 legacy rates

Since the standards only define 12 legacy rates, 32 is certainly
a sane upper limit and we don't need to use u64 everywhere. Add
sanity checking that no more than 32 rates are registered and
change the variables to u32 throughout.

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

2 files changed, 3 insertions, 3 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ef42559694f1..c76484009baa 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -207,7 +207,7 @@ struct ieee80211_bss_conf {
         u16 beacon_int;
         u16 assoc_capability;
         u64 timestamp;
-        u64 basic_rates;
+        u32 basic_rates;
         struct ieee80211_bss_ht_conf ht;
 };
 
@@ -761,7 +761,7 @@ enum set_key_cmd {
  *      sizeof(void *), size is determined in hw information.
  */
 struct ieee80211_sta {
-        u64 supp_rates[IEEE80211_NUM_BANDS];
+        u32 supp_rates[IEEE80211_NUM_BANDS];
         u8 addr[ETH_ALEN];
         u16 aid;
         struct ieee80211_sta_ht_cap ht_cap;
diff --git a/include/net/wireless.h b/include/net/wireless.h
index 9e73aae40c5d..6c5b08204232 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -367,7 +367,7 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq)
  */
 struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
-                            u64 basic_rates, int bitrate);
+                            u32 basic_rates, int bitrate);
 
 /**
  * regulatory_hint - driver hint to the wireless core a regulatory domain