Author: bschmidt
Date: Tue Jan 3 09:42:31 2012
New Revision: 229375
URL: http://svn.freebsd.org/changeset/base/229375
Log:
Don't rely on MCS7 being at index 7 while determining the amount
of antennas to use. Not all APs enable all MCS rates.
Poked by: Lucius Windschuh <lwindschuh at googlemail dot com>
MFC after: 1 week
Modified:
head/sys/dev/iwn/if_iwn.c
Modified: head/sys/dev/iwn/if_iwn.c
==============================================================================
--- head/sys/dev/iwn/if_iwn.c Tue Jan 3 09:42:08 2012 (r229374)
+++ head/sys/dev/iwn/if_iwn.c Tue Jan 3 09:42:31 2012 (r229375)
@@ -2128,7 +2128,7 @@ iwn_newassoc(struct ieee80211_node *ni,
plcp |= IWN_RFLAG_SGI;
} else if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20)
plcp |= IWN_RFLAG_SGI;
- if (i > 7)
+ if (RV(ni->ni_htrates.rs_rates[i]) > 7)
plcp |= IWN_RFLAG_ANT(txant1 | txant2);
else
plcp |= IWN_RFLAG_ANT(txant1);
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