diff mbox

mac80211: minstrel_ht: fix rates selection

Message ID 1384364460-4452-1-git-send-email-karl.beldan@gmail.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Karl Beldan Nov. 13, 2013, 5:41 p.m. UTC
From: Karl Beldan <karl.beldan@rivierawaves.com>

When initializing rates selections starting indexes upon stats update,
the minstrel_sta->max_* rates should be 'group * MCS_GROUP_RATES + i'
not 'i'. This affects settings where one of the peers does not support
any of the rates of the group 0 (i.e. when ht_cap.mcs.rx_mask[0] == 0).

Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
---
 net/mac80211/rc80211_minstrel_ht.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Felix Fietkau Nov. 13, 2013, 9:20 p.m. UTC | #1
On 2013-11-13 18:41, Karl Beldan wrote:
> From: Karl Beldan <karl.beldan@rivierawaves.com>
> 
> When initializing rates selections starting indexes upon stats update,
> the minstrel_sta->max_* rates should be 'group * MCS_GROUP_RATES + i'
> not 'i'. This affects settings where one of the peers does not support
> any of the rates of the group 0 (i.e. when ht_cap.mcs.rx_mask[0] == 0).
> 
> Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
> ---
>  net/mac80211/rc80211_minstrel_ht.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
> index 88c932e..6c173a2 100644
> --- a/net/mac80211/rc80211_minstrel_ht.c
> +++ b/net/mac80211/rc80211_minstrel_ht.c
> @@ -390,7 +390,8 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
>  					mg->max_prob_rate = i;
>  				if (!mi_rates_valid) {
>  					mi->max_tp_rate = mi->max_tp_rate2 =
> -						mi->max_prob_rate = i;
> +						mi->max_prob_rate =
> +						group * MCS_GROUP_RATES + i;
How about moving the 'index = ...' line further up and using that
instead of duplicating it?

- Felix

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Karl Beldan Nov. 13, 2013, 10:03 p.m. UTC | #2
On Wed, Nov 13, 2013 at 10:20:49PM +0100, Felix Fietkau wrote:
> On 2013-11-13 18:41, Karl Beldan wrote:
> > From: Karl Beldan <karl.beldan@rivierawaves.com>
> > 
> > When initializing rates selections starting indexes upon stats update,
> > the minstrel_sta->max_* rates should be 'group * MCS_GROUP_RATES + i'
> > not 'i'. This affects settings where one of the peers does not support
> > any of the rates of the group 0 (i.e. when ht_cap.mcs.rx_mask[0] == 0).
> > 
> > Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
> > ---
> >  net/mac80211/rc80211_minstrel_ht.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
> > index 88c932e..6c173a2 100644
> > --- a/net/mac80211/rc80211_minstrel_ht.c
> > +++ b/net/mac80211/rc80211_minstrel_ht.c
> > @@ -390,7 +390,8 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
> >  					mg->max_prob_rate = i;
> >  				if (!mi_rates_valid) {
> >  					mi->max_tp_rate = mi->max_tp_rate2 =
> > -						mi->max_prob_rate = i;
> > +						mi->max_prob_rate =
> > +						group * MCS_GROUP_RATES + i;
> How about moving the 'index = ...' line further up and using that
> instead of duplicating it?
> 
D'ohf course.
 
Karl
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diff mbox

Patch

diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 88c932e..6c173a2 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -390,7 +390,8 @@  minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
 					mg->max_prob_rate = i;
 				if (!mi_rates_valid) {
 					mi->max_tp_rate = mi->max_tp_rate2 =
-						mi->max_prob_rate = i;
+						mi->max_prob_rate =
+						group * MCS_GROUP_RATES + i;
 					mi_rates_valid = true;
 				}
 				mg_rates_valid = true;