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Date:      Mon, 20 May 2013 07:10:43 +0000 (UTC)
From:      Adrian Chadd <adrian@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r250824 - head/sys/dev/ath/ath_hal
Message-ID:  <201305200710.r4K7AhhG055264@svn.freebsd.org>

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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)



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