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Date:   Mon, 18 Feb 2019 16:24:45 +0800
From:   David Chen <david0813@...il.com>
To:     Oliver Neukum <oneukum@...e.com>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        netdev@...r.kernel.org, kai.heng.feng@...onical.com,
        davem@...emloft.net, david.chen7@...l.com,
        mario.limonciello@...l.com, f.fainelli@...il.com,
        edumazet@...gle.com, zhongjiang@...wei.com, bigeasy@...utronix.de,
        hayeswang@...ltek.com, jslaby@...e.cz
Subject: Re: [PATCH 2/2] RTL8153-BD is used in Dell DA300 type-C dongle. It should be added to the whitelist of devices to activate MAC address pass through.

Hi Oliver,

Thanks for reviewing.  I have made some mistake, will correct it and resend.

Thanks and Regards,
-David

> Oliver Neukum <oneukum@...e.com> 於 2019年2月18日 下午4:04 寫道:
> 
>> On Mo, 2019-02-18 at 11:48 +0800, David Chen wrote:
>> From: David Chen <david.chen7@...l.com>
>> 
>> Per confirming with Realtek all devices containing RTL8153-BD should
>> activate MAC pass through and there won't use pass through bit on efuse
>> like in RTL8153-AD.
>> 
>> Signed-off-by: David Chen <david.chen7@...l.com>
>> ---
>> drivers/net/usb/r8152.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
>> index ada6baf8847a..86c8c64fbb0f 100644
>> --- a/drivers/net/usb/r8152.c
>> +++ b/drivers/net/usb/r8152.c
>> @@ -1179,7 +1179,7 @@ static int vendor_mac_passthru_addr_read(struct r8152 *tp, struct sockaddr *sa)
>>    } else {
>>        /* test for RTL8153-BND and RTL8153-BD */
>>        ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_1);
>> -        if ((ocp_data & BND_MASK) == 0 && (ocp_data & BD_MASK)) {
>> +        if ((ocp_data & BND_MASK) == 0 && (ocp_data & BD_MASK) == 0) {
> 
> You are inverting the second half of the test. How can this possibly be
> right? Had you dropped it, I would understand. But this? Are you sure?
> 
>    Regards
>        Oliver
> 

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