This is a note to let you know that I've just added the patch titled
rt2800: validate step value for temperature compensation
to the 3.4-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:
rt2800-validate-step-value-for-temperature-compensation.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <[email protected]>
Date: Thu, 25 Oct 2012 09:51:39 +0200
Subject: rt2800: validate step value for temperature compensation
From: Stanislaw Gruszka <[email protected]>
commit bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8 upstream.
Some hardware has correct (!= 0xff) value of tssi_bounds[4] in the
EEPROM, but step is equal to 0xff. This results on ridiculous delta
calculations and completely broke TX power settings.
Reported-and-tested-by: Pavel Lucik <[email protected]>
Signed-off-by: Stanislaw Gruszka <[email protected]>
Acked-by: Ivo van Doorn <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/rt2x00/rt2800lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2235,7 +2235,7 @@ static int rt2800_get_gain_calibration_d
/*
* Check if temperature compensation is supported.
*/
- if (tssi_bounds[4] == 0xff)
+ if (tssi_bounds[4] == 0xff || step == 0xff)
return 0;
/*
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/rt2800-validate-step-value-for-temperature-compensation.patch
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