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Message-ID: <lsq.1382345188.551507034@decadent.org.uk>
Date: Mon, 21 Oct 2013 09:46:28 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Felix Fietkau" <nbd@...nwrt.org>,
"John W. Linville" <linville@...driver.com>
Subject: [PATCH 3.2 027/149] ath9k: avoid accessing MRC registers on
single-chain devices
3.2.52-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Felix Fietkau <nbd@...nwrt.org>
commit a1c781bb20ac1e03280e420abd47a99eb8bbdd3b upstream.
They are not implemented, and accessing them might trigger errors
Signed-off-by: Felix Fietkau <nbd@...nwrt.org>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1016,6 +1016,10 @@ static bool ar9003_hw_ani_control(struct
* is_on == 0 means MRC CCK is OFF (more noise imm)
*/
bool is_on = param ? 1 : 0;
+
+ if (ah->caps.rx_chainmask == 1)
+ break;
+
REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
AR_PHY_MRC_CCK_ENABLE, is_on);
REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
--
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