This is a note to let you know that I've just added the patch titled
wifi: cfg80211: fix MCS divisor value
to the 5.15-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:
wifi-cfg80211-fix-mcs-divisor-value.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7eb17f13467d0199d165c22ce030d9f5c27b02fb
Author: Tamizh Chelvam Raja <quic_tamizhr@xxxxxxxxxxx>
Date: Thu Sep 8 23:40:34 2022 +0530
wifi: cfg80211: fix MCS divisor value
[ Upstream commit 64e966d1e84b29c9fa916cfeaabbf4013703942e ]
The Bitrate for HE/EHT MCS6 is calculated wrongly due to the
incorrect MCS divisor value for mcs6. Fix it with the proper
value.
previous mcs_divisor value = (11769/6144) = 1.915527
fixed mcs_divisor value = (11377/6144) = 1.851725
Fixes: 9c97c88d2f4b ("cfg80211: Add support to calculate and report 4096-QAM HE rates")
Signed-off-by: Tamizh Chelvam Raja <quic_tamizhr@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220908181034.9936-1-quic_tamizhr@xxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 4ddc269164f8..cb15d7f4eb05 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1353,7 +1353,7 @@ static u32 cfg80211_calculate_bitrate_he(struct rate_info *rate)
25599, /* 4.166666... */
17067, /* 2.777777... */
12801, /* 2.083333... */
- 11769, /* 1.851851... */
+ 11377, /* 1.851725... */
10239, /* 1.666666... */
8532, /* 1.388888... */
7680, /* 1.250000... */
