This is a note to let you know that I've just added the patch titled
b43: N-PHY: increase initial value of "mind" in RSSI calibration
to the 3.8-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:
b43-n-phy-increase-initial-value-of-mind-in-rssi-calibration.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e67dd874e60529dbd2e8232babb1e23479ba2ffa Mon Sep 17 00:00:00 2001
From: RafaÅ? MiÅ?ecki <zajec5@xxxxxxxxx>
Date: Tue, 19 Mar 2013 07:52:48 +0100
Subject: b43: N-PHY: increase initial value of "mind" in RSSI calibration
From: RafaÅ? MiÅ?ecki <zajec5@xxxxxxxxx>
commit e67dd874e60529dbd2e8232babb1e23479ba2ffa upstream.
We're using "mind" variable to find the VCM that got the best polling
results. For each VCM we calculte "currd" which is compared to the
"mind". For PHY rev3+ "currd" gets values around 14k-40k. Looking for a
value smaller than 40 makes no sense, so increase the initial value.
This fixes a regression introduced in 3.4 by commit:
e0c9a0219a8f542e3946fe972a68aacf8c3f906c
(my BCM4322 performance dropped from 18,4Mb/s to 9,26Mb/s)
Signed-off-by: RafaÅ? MiÅ?ecki <zajec5@xxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/b43/phy_n.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -1615,7 +1615,7 @@ static void b43_nphy_rev3_rssi_cal(struc
}
for (i = 0; i < 4; i += 2) {
s32 curr;
- s32 mind = 40;
+ s32 mind = 0x100000;
s32 minpoll = 249;
u8 minvcm = 0;
if (2 * core != i)
@@ -1799,7 +1799,7 @@ static void b43_nphy_rev2_rssi_cal(struc
}
for (i = 0; i < 4; i++) {
- s32 mind = 40;
+ s32 mind = 0x100000;
u8 minvcm = 0;
s32 minpoll = 249;
s32 curr;
Patches currently in stable-queue which might be from zajec5@xxxxxxxxx are
queue-3.8/b43-n-phy-use-more-bits-for-offset-in-rssi-calibration.patch
queue-3.8/b43-n-phy-increase-initial-value-of-mind-in-rssi-calibration.patch
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