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>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 82f568e94365..2d573f8470d0 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -476,7 +476,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
         struct ieee80211_local *local = sdata->local;
         struct ieee802_11_elems elems;
         struct ieee80211_channel *channel;
-        u64 supp_rates = 0;
+        u32 supp_rates = 0;
         size_t baselen;
         int freq;
         enum ieee80211_band band = rx_status->band;