Commit df7f4ebe authored Jun 03, 2010 by Helmut Schaa Committed by Ivo van Doorn Jun 03, 2010

rt2x00: fix use of mcs rates



In case of mcs rates txrate->idx contains the mcs index to be used for
transmission. Previously the mcs values dedicated for legacy rates where
used for mcs transmissions which resulted in the use of mcs 0 in a number
of cases (e.g. for all mcs rates >= 15 as rt2x00 does not register legacy
rates with indexes >= 15).

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>

parent c295a81d

drivers/net/wireless/rt2x00/rt2x00ht.c

+12 −3

Original line number	Diff line number	Diff line
		@@ -48,9 +48,18 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
		txdesc->stbc =
		(tx_info->flags & IEEE80211_TX_CTL_STBC) >> IEEE80211_TX_CTL_STBC_SHIFT;

		/*
		* If IEEE80211_TX_RC_MCS is set txrate->idx just contains the
		* mcs rate to be used
		*/
		if (txrate->flags & IEEE80211_TX_RC_MCS) {
		txdesc->mcs = txrate->idx;
		} else {
		txdesc->mcs = rt2x00_get_rate_mcs(hwrate->mcs);
		if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
		txdesc->mcs \|= 0x08;
		}


		/*
		* Convert flags