From: <gregkh@linuxfoundation.org>
To: Larry.Finger@lwfinger.net, dcb314@hotmail.com,
gregkh@linuxfoundation.org, kvalo@codeaurora.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "rtlwifi: rtl8821ae: Fix an expression that is always false" has been added to the 4.2-stable tree
Date: Tue, 22 Sep 2015 21:15:03 -0700 [thread overview]
Message-ID: <1442981703170247@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8821ae: Fix an expression that is always false
to the 4.2-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:
rtlwifi-rtl8821ae-fix-an-expression-that-is-always-false.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 251086f588720277a6f5782020a648ce32c4e00b Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 8 Jul 2015 10:18:50 -0500
Subject: rtlwifi: rtl8821ae: Fix an expression that is always false
From: Larry Finger <Larry.Finger@lwfinger.net>
commit 251086f588720277a6f5782020a648ce32c4e00b upstream.
In routine _rtl8821ae_set_media_status(), an incorrect mask results in a test
for AP status to always be false. Similar bugs were fixed in rtl8192cu and
rtl8192de, but this instance was missed at that time.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: David Binderman <dcb314@hotmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/rtlwifi/rtl8821ae/hw.c | 2 +-
drivers/net/wireless/rtlwifi/rtl8821ae/reg.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
@@ -2180,7 +2180,7 @@ static int _rtl8821ae_set_media_status(s
rtl_write_byte(rtlpriv, MSR, bt_msr);
rtlpriv->cfg->ops->led_control(hw, ledaction);
- if ((bt_msr & 0xfc) == MSR_AP)
+ if ((bt_msr & MSR_MASK) == MSR_AP)
rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x00);
else
rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x66);
--- a/drivers/net/wireless/rtlwifi/rtl8821ae/reg.h
+++ b/drivers/net/wireless/rtlwifi/rtl8821ae/reg.h
@@ -429,6 +429,7 @@
#define MSR_ADHOC 0x01
#define MSR_INFRA 0x02
#define MSR_AP 0x03
+#define MSR_MASK 0x03
#define RRSR_RSC_OFFSET 21
#define RRSR_SHORT_OFFSET 23
Patches currently in stable-queue which might be from Larry.Finger@lwfinger.net are
queue-4.2/rtlwifi-rtl8821ae-fix-an-expression-that-is-always-false.patch
queue-4.2/rtlwifi-rtl8192cu-add-new-device-id.patch
reply other threads:[~2015-09-23 4:15 UTC|newest]
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