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Fix incorrect country code issue on RTL8812AE devices (rhbz 1279653)

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This commit is contained in:
Josh Boyer 2016-01-21 10:04:04 -05:00
parent 43a1944dd7
commit 6db61a0cd5
2 changed files with 61 additions and 0 deletions
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6
kernel.spec
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@ -602,6 +602,9 @@ Patch625: cpupower-Fix-build-error-in-cpufreq-info.patch
#CVE-2016-0723 rhbz 1296253 1300224
Patch637: tty-Fix-unsafe-ldisc-reference-via-ioctl-TIOCGETD.patch
#rhbz 1279653
Patch638: rtlwifi-rtl8821ae-Fix-5G-failure-when-EEPROM-is-inco.patch
# END OF PATCH DEFINITIONS
%endif
@ -2047,6 +2050,9 @@ fi
#
#
%changelog
* Thu Jan 21 2016 Josh Boyer <jwboyer@fedoraproject.org>
- Fix incorrect country code issue on RTL8812AE devices (rhbz 1279653)
* Wed Jan 20 2016 Justin M. Forbes <jforbes@fedoraproject.org> - 4.5.0-0.rc0.git7.1
- Linux v4.4-8950-g2b4015e

55
rtlwifi-rtl8821ae-Fix-5G-failure-when-EEPROM-is-inco.patch Normal file
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@ -0,0 +1,55 @@
From 933885ecca1a2b8fa03b5756ba1cbb9f094a5861 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 20 Jan 2016 21:26:18 -0600
Subject: [PATCH] rtlwifi: rtl8821ae: Fix 5G failure when EEPROM is incorrectly
encoded
Recently, it has been reported that D-Link DWA-582 cards, which use an
RTL8812AE chip are not able to scan for 5G networks. The problems started
with kernel 4.2, which is the first version that had commit d10101a60372
("rtlwifi: rtl8821ae: Fix problem with regulatory information"). With this
patch, the driver went from setting a default channel plan to using
the value derived from EEPROM.
Bug reports at https://bugzilla.kernel.org/show_bug.cgi?id=111031 and
https://bugzilla.redhat.com/show_bug.cgi?id=1279653 are examples of this
problem.
The problem was solved once I learned that the internal country code was
resulting in a regulatory set with only 2.4 GHz channels. With the RTL8821AE
chips available to me, the country code was such that both 2.4 and 5 GHz
channels are allowed. The fix is to allow both bands even when the EEPROM
is incorrectly encoded.
Fixes: d10101a60372 ("rtlwifi: rtl8821ae: Fix problem with regulatory information")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: littlesmartguy@gmail.com
Cc: gabe@codehaus.org
Cc: Stable <stable@vger.kernel.org> [v4.2+]
---
drivers/net/wireless/realtek/rtlwifi/regd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtlwifi/regd.c b/drivers/net/wireless/realtek/rtlwifi/regd.c
index a62bf0a65c32..5be34118e0af 100644
--- a/drivers/net/wireless/realtek/rtlwifi/regd.c
+++ b/drivers/net/wireless/realtek/rtlwifi/regd.c
@@ -351,7 +351,6 @@ static const struct ieee80211_regdomain *_rtl_regdomain_select(
case COUNTRY_CODE_SPAIN:
case COUNTRY_CODE_FRANCE:
case COUNTRY_CODE_ISRAEL:
- case COUNTRY_CODE_WORLD_WIDE_13:
return &rtl_regdom_12_13;
case COUNTRY_CODE_MKK:
case COUNTRY_CODE_MKK1:
@@ -360,6 +359,7 @@ static const struct ieee80211_regdomain *_rtl_regdomain_select(
return &rtl_regdom_14_60_64;
case COUNTRY_CODE_GLOBAL_DOMAIN:
return &rtl_regdom_14;
+ case COUNTRY_CODE_WORLD_WIDE_13:
case COUNTRY_CODE_WORLD_WIDE_13_5G_ALL:
return &rtl_regdom_12_13_5g_all;
default:
--
2.5.0