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/wireless/util.c b/net/wireless/util.c
index e76cc28b0345..487cdd9bcffc 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -9,7 +9,7 @@
 
 struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
-                            u64 basic_rates, int bitrate)
+                            u32 basic_rates, int bitrate)
 {
         struct ieee80211_rate *result = &sband->bitrates[0];
         int i;