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authorJohannes Berg <johannes.berg@intel.com>2012-05-08 21:36:20 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-05-16 12:46:33 -0400
commit2615f3759b7b7d47a2fa894bc9f45286bdf122d7 (patch)
tree2533e28f347651fc8f551e3747110e4d3c40b7b8 /net/wireless/util.c
parent4472037be86a9d7d1cab37e0c4cb310997a140ae (diff)
cfg80211: add warning when calculating MCS rates >= 32
cfg80211_calculate_bitrate() doesn't work for MCS rates 32 or higher, and it has always returned 0 in that case. Warn if it ever really happens. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/util.c')
-rw-r--r--net/wireless/util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 6cba00173a2f..177df03064cf 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -880,7 +880,7 @@ u16 cfg80211_calculate_bitrate(struct rate_info *rate)
return rate->legacy;
/* the formula below does only work for MCS values smaller than 32 */
- if (rate->mcs >= 32)
+ if (WARN_ON_ONCE(rate->mcs >= 32))
return 0;
modulation = rate->mcs & 7;