This is a note to let you know that I've just added the patch titled
mac80211/minstrel_ht: fix cck rate sampling
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mac80211-minstrel_ht-fix-cck-rate-sampling.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1cd158573951f737fbc878a35cb5eb47bf9af3d5 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@xxxxxxxxxxx>
Date: Fri, 28 Jun 2013 21:04:35 +0200
Subject: mac80211/minstrel_ht: fix cck rate sampling
From: Felix Fietkau <nbd@xxxxxxxxxxx>
commit 1cd158573951f737fbc878a35cb5eb47bf9af3d5 upstream.
The CCK group needs special treatment to set the right flags and rate
index. Add this missing check to prevent setting broken rates for tx
packets.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/rc80211_minstrel_ht.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -804,10 +804,18 @@ minstrel_ht_get_rate(void *priv, struct
sample_group = &minstrel_mcs_groups[sample_idx / MCS_GROUP_RATES];
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+ rate->count = 1;
+
+ if (sample_idx / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) {
+ int idx = sample_idx % ARRAY_SIZE(mp->cck_rates);
+ rate->idx = mp->cck_rates[idx];
+ rate->flags = 0;
+ return;
+ }
+
rate->idx = sample_idx % MCS_GROUP_RATES +
(sample_group->streams - 1) * MCS_GROUP_RATES;
rate->flags = IEEE80211_TX_RC_MCS | sample_group->flags;
- rate->count = 1;
}
static void
Patches currently in stable-queue which might be from nbd@xxxxxxxxxxx are
queue-3.10/mac80211-minstrel-fix-null-pointer-dereference-issue.patch
queue-3.10/mac80211-minstrel_ht-fix-cck-rate-sampling.patch
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