Hi Ivo/John, 2009/1/18 Ivo van Doorn <ivdoorn@xxxxxxxxx>: > Mac80211 provides 2 structures to handle bitrates, namely > ieee80211_rate and ieee80211_tx_rate. To determine the short preamble > mode for an outgoing frame, the flag IEEE80211_TX_RC_USE_SHORT_PREAMBLE > must be checked on ieee80211_tx_rate and not ieee80211_rate (which rt2x00 did). > > This fixes a regression which was triggered in 2.6.29-rcX as reported by Chris Clayton. > I don't think the patch below will apply to 2.6.29-rc because it is lagging behind wireless testing and, I would guess, is likely to stay that way for 2.6.29 because the merge window is closed. Won't the final patch that was provided to me at http://marc.info/?l=linux-wireless&m=123229784930740&w=4 be the correct one? If so, could John please add: Tested-By: Chris Clayton <chris2553@xxxxxxxxxxxxxx> Cheers, Chris > Signed-off-by: Ivo van Doorn <IvDoorn@xxxxxxxxx> > > --- > diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c > index c1e5a05..3dab9b4 100644 > --- a/drivers/net/wireless/rt2x00/rt2x00queue.c > +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c > @@ -186,10 +186,11 @@ static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry, > > static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, > struct txentry_desc *txdesc, > - struct ieee80211_rate *rate) > + const struct rt2x00_rate *hwrate) > { > struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; > - const struct rt2x00_rate *hwrate = rt2x00_get_rate(rate->hw_value); > + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); > + struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0]; > unsigned int data_length; > unsigned int duration; > unsigned int residual; > @@ -232,7 +233,7 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, > * When preamble is enabled we should set the > * preamble bit for the signal. > */ > - if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) > + if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) > txdesc->signal |= 0x08; > } > } > @@ -326,7 +327,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, > */ > rt2x00crypto_create_tx_descriptor(entry, txdesc); > rt2x00queue_create_tx_descriptor_seq(entry, txdesc); > - rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, rate); > + rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate); > } > > static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry, > -- In a world without walls and fences, who needs windows and gates? -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
