From df7f4ebe75d04faf6d1eb3b910659199002c7476 Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Thu, 3 Jun 2010 10:52:15 +0200 Subject: [PATCH] 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 Acked-by: Gertjan van Wingerde Signed-off-by: Ivo van Doorn --- drivers/net/wireless/rt2x00/rt2x00ht.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00ht.c b/drivers/net/wireless/rt2x00/rt2x00ht.c index 382ab79..c004cd3 100644 --- a/drivers/net/wireless/rt2x00/rt2x00ht.c +++ b/drivers/net/wireless/rt2x00/rt2x00ht.c @@ -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; - txdesc->mcs = rt2x00_get_rate_mcs(hwrate->mcs); - if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) - txdesc->mcs |= 0x08; + /* + * 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 -- 2.7.4