Commit 2615f375 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

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: default avatarJohannes Berg <>
Signed-off-by: default avatarJohn W. Linville <>
parent 4472037b
......@@ -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;
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