[PATCH 4.13 57/85] rtlwifi: rtl8821ae: Fix connection lost problem
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2017-10-24 13:14:49
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4.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Larry Finger <redacted>
commit b8b8b16352cd90c6083033fd4487f04fae935c18 upstream.
In commit 40b368af4b75 ("rtlwifi: Fix alignment issues"), the read
of REG_DBI_READ was changed from 16 to 8 bits. For unknown reasonsi
this change results in reduced stability for the wireless connection.
This regression was located using bisection.
Fixes: 40b368af4b75 ("rtlwifi: Fix alignment issues")
Reported-and-tested-by: James Cameron <redacted>
Signed-off-by: Larry Finger <redacted>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c@@ -1122,7 +1122,7 @@ static u8 _rtl8821ae_dbi_read(struct rtl } if (0 == tmp) { read_addr = REG_DBI_RDATA + addr % 4; - ret = rtl_read_byte(rtlpriv, read_addr); + ret = rtl_read_word(rtlpriv, read_addr); } return ret; }