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