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Commit 2615f375 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
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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 <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4472037b

net/wireless/util.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -880,7 +880,7 @@ u16 cfg80211_calculate_bitrate(struct rate_info *rate) 
		return rate->legacy;

		return rate->legacy;





	/* the formula below does only work for MCS values smaller than 32 */

	/* 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;

		return 0;





	modulation = rate->mcs & 7;

	modulation = rate->mcs & 7;