| From | Greg Kroah-Hartman <> | Subject | [ 07/59] ath9k: Do not assign noise for NULL caldata | Date | Fri, 26 Jul 2013 13:52:31 -0700 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
commit d3bcb7b24bbf09fde8405770e676fe0c11c79662 upstream.
ah->noise is maintained globally and not per-channel. This is updated in the reset() routine after the NF history has been filled for the *current channel*, just before switching to the new channel. There is no need to do it inside getnf(), since ah->noise must contain a value for the new channel.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/net/wireless/ath/ath9k/calib.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -389,7 +389,6 @@ bool ath9k_hw_getnf(struct ath_hw *ah, s if (!caldata) { chan->noisefloor = nf; - ah->noise = ath9k_hw_getchan_noise(ah, chan); return false; }
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