linux-kernel - [035/129] ath9k_hw: fix parsing of HT40 5 GHz CTLs

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Date:	Sat, 18 Sep 2010 12:12:13 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	"Luis R. Rodriguez" <lrodriguez@...eros.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [035/129] ath9k_hw: fix parsing of HT40 5 GHz CTLs

2.6.35-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Luis R. Rodriguez <lrodriguez@...eros.com>

commit 904879748d7439a6dabdc6be9aad983e216b027d upstream.

The 5 GHz CTL indexes were not being read for all hardware
devices due to the masking out through the CTL_MODE_M mask
being one bit too short. Without this the calibrated regulatory
maximum values were not being picked up when devices operate
on 5 GHz in HT40 mode. The final output power used for Atheros
devices is the minimum between the calibrated CTL values and
what CRDA provides.

Signed-off-by: Luis R. Rodriguez <lrodriguez@...eros.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/net/wireless/ath/ath9k/eeprom.h |    2 +-
 drivers/net/wireless/ath/regd.h         |    1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -62,7 +62,7 @@
 
 #define SD_NO_CTL               0xE0
 #define NO_CTL                  0xff
-#define CTL_MODE_M              7
+#define CTL_MODE_M              0xf
 #define CTL_11A                 0
 #define CTL_11B                 1
 #define CTL_11G                 2
--- a/drivers/net/wireless/ath/regd.h
+++ b/drivers/net/wireless/ath/regd.h
@@ -31,7 +31,6 @@ enum ctl_group {
 #define NO_CTL 0xff
 #define SD_NO_CTL               0xE0
 #define NO_CTL                  0xff
-#define CTL_MODE_M              7
 #define CTL_11A                 0
 #define CTL_11B                 1
 #define CTL_11G                 2


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