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* [PATCH] mac80211: skip legacy rate mask handling for VHT rates
@ 2014-11-15  2:48 Felix Fietkau
  2014-11-15 11:05 ` Karl Beldan
  2014-11-19 17:38 ` Johannes Berg
  0 siblings, 2 replies; 4+ messages in thread
From: Felix Fietkau @ 2014-11-15  2:48 UTC (permalink / raw)
  To: linux-wireless; +Cc: johannes, karl.beldan

The rate mask code currently assumes that a rate is legacy if
IEEE80211_TX_RC_MCS is not set. This might be the cause of bogus VHT
rates being reported with minstrel_ht.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
 net/mac80211/rate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 6081329..f6fea67f 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -385,7 +385,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
 			*rate = alt_rate;
 			return;
 		}
-	} else {
+	} else if (!(rate->flags & IEEE80211_TX_RC_VHT_MCS)) {
 		/* handle legacy rates */
 		if (rate_idx_match_legacy_mask(rate, sband->n_bitrates, mask))
 			return;
-- 
2.1.2


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH] mac80211: skip legacy rate mask handling for VHT rates
  2014-11-15  2:48 [PATCH] mac80211: skip legacy rate mask handling for VHT rates Felix Fietkau
@ 2014-11-15 11:05 ` Karl Beldan
  2014-11-15 11:44   ` Jouni Malinen
  2014-11-19 17:38 ` Johannes Berg
  1 sibling, 1 reply; 4+ messages in thread
From: Karl Beldan @ 2014-11-15 11:05 UTC (permalink / raw)
  To: Jouni Malinen, Felix Fietkau; +Cc: linux-wireless, johannes

On Sat, Nov 15, 2014 at 03:48:54AM +0100, Felix Fietkau wrote:
> The rate mask code currently assumes that a rate is legacy if
> IEEE80211_TX_RC_MCS is not set. This might be the cause of bogus VHT
> rates being reported with minstrel_ht.
> 
> Signed-off-by: Felix Fietkau <nbd@openwrt.org>
> ---
>  net/mac80211/rate.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
> index 6081329..f6fea67f 100644
> --- a/net/mac80211/rate.c
> +++ b/net/mac80211/rate.c
> @@ -385,7 +385,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
>  			*rate = alt_rate;
>  			return;
>  		}
> -	} else {
> +	} else if (!(rate->flags & IEEE80211_TX_RC_VHT_MCS)) {
>  		/* handle legacy rates */
>  		if (rate_idx_match_legacy_mask(rate, sband->n_bitrates, mask))
>  			return;

Does it fix things on your side Jouni ?
 
Karl

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] mac80211: skip legacy rate mask handling for VHT rates
  2014-11-15 11:05 ` Karl Beldan
@ 2014-11-15 11:44   ` Jouni Malinen
  0 siblings, 0 replies; 4+ messages in thread
From: Jouni Malinen @ 2014-11-15 11:44 UTC (permalink / raw)
  To: Karl Beldan; +Cc: Felix Fietkau, linux-wireless, johannes

On Sat, Nov 15, 2014 at 12:05:00PM +0100, Karl Beldan wrote:
> On Sat, Nov 15, 2014 at 03:48:54AM +0100, Felix Fietkau wrote:
> > The rate mask code currently assumes that a rate is legacy if
> > IEEE80211_TX_RC_MCS is not set. This might be the cause of bogus VHT
> > rates being reported with minstrel_ht.

> > -	} else {
> > +	} else if (!(rate->flags & IEEE80211_TX_RC_VHT_MCS)) {

> Does it fix things on your side Jouni ?

Yes, it does resolve the nfc_p2p_* test case failures with
CONFIG_MAC80211_RC_MINSTREL_VHT=y.

-- 
Jouni Malinen                                            PGP id EFC895FA

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] mac80211: skip legacy rate mask handling for VHT rates
  2014-11-15  2:48 [PATCH] mac80211: skip legacy rate mask handling for VHT rates Felix Fietkau
  2014-11-15 11:05 ` Karl Beldan
@ 2014-11-19 17:38 ` Johannes Berg
  1 sibling, 0 replies; 4+ messages in thread
From: Johannes Berg @ 2014-11-19 17:38 UTC (permalink / raw)
  To: Felix Fietkau; +Cc: linux-wireless, karl.beldan

On Sat, 2014-11-15 at 03:48 +0100, Felix Fietkau wrote:
> The rate mask code currently assumes that a rate is legacy if
> IEEE80211_TX_RC_MCS is not set. This might be the cause of bogus VHT
> rates being reported with minstrel_ht.

Applied.

johannes


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2014-11-19 17:38 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-11-15  2:48 [PATCH] mac80211: skip legacy rate mask handling for VHT rates Felix Fietkau
2014-11-15 11:05 ` Karl Beldan
2014-11-15 11:44   ` Jouni Malinen
2014-11-19 17:38 ` Johannes Berg

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