svn commit: r250824 - head/sys/dev/ath/ath_hal

[Adrian Chadd]

Author: adrian
Date: Mon May 20 07:10:43 2013
New Revision: 250824
URL: http://svnweb.freebsd.org/changeset/base/250824

Log:
  Make the HT rate duration calculation work for MCS rates > 15.

Modified:
  head/sys/dev/ath/ath_hal/ah.c

Modified: head/sys/dev/ath/ath_hal/ah.c
==============================================================================
--- head/sys/dev/ath/ath_hal/ah.c	Mon May 20 03:15:25 2013	(r250823)
+++ head/sys/dev/ath/ath_hal/ah.c	Mon May 20 07:10:43 2013	(r250824)
@@ -327,9 +327,9 @@ ath_computedur_ht(uint32_t frameLen, uin
 	KASSERT((rate &~ IEEE80211_RATE_MCS) < 31, ("bad mcs 0x%x", rate));
 
 	if (isht40)
-		bitsPerSymbol = ht40_bps[rate & 0xf];
+		bitsPerSymbol = ht40_bps[rate & 0x1f];
 	else
-		bitsPerSymbol = ht20_bps[rate & 0xf];
+		bitsPerSymbol = ht20_bps[rate & 0x1f];
 	numBits = OFDM_PLCP_BITS + (frameLen << 3);
 	numSymbols = howmany(numBits, bitsPerSymbol);
 	if (isShortGI)