netdev - Re: [PATCH] r8152: Add MAC passthrough support to new device

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Message-Id: <14A65209-846C-4C94-9EC3-55605D2528B0@canonical.com>
Date:   Tue, 14 Jan 2020 16:03:50 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     Prashant Malani <pmalani@...omium.org>
Cc:     David Miller <davem@...emloft.net>,
        Hayes Wang <hayeswang@...ltek.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Grant Grundler <grundler@...omium.org>,
        Mario Limonciello <mario.limonciello@...l.com>,
        David Chen <david.chen7@...l.com>,
        "open list:USB NETWORKING DRIVERS" <linux-usb@...r.kernel.org>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] r8152: Add MAC passthrough support to new device



> On Jan 14, 2020, at 15:51, Prashant Malani <pmalani@...omium.org> wrote:
> 
> On Mon, Jan 13, 2020 at 8:41 PM Kai-Heng Feng
> <kai.heng.feng@...onical.com> wrote:
>> 
>> Device 0xa387 also supports MAC passthrough, therefore add it to the
>> whitelst.
>> 
>> BugLink: https://bugs.launchpad.net/bugs/1827961/comments/30
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
>> ---
>> drivers/net/usb/r8152.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>> 
>> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
>> index c5ebf35d2488..42dcf1442cc0 100644
>> --- a/drivers/net/usb/r8152.c
>> +++ b/drivers/net/usb/r8152.c
>> @@ -6657,7 +6657,8 @@ static int rtl8152_probe(struct usb_interface *intf,
>>        }
>> 
>>        if (le16_to_cpu(udev->descriptor.idVendor) == VENDOR_ID_LENOVO &&
>> -           le16_to_cpu(udev->descriptor.idProduct) == 0x3082)
>> +           (le16_to_cpu(udev->descriptor.idProduct) == 0x3082 ||
>> +            le16_to_cpu(udev->descriptor.idProduct) == 0xa387))
> Perhaps we can try to use #define's for these vendor IDs (like
> https://github.com/torvalds/linux/blob/master/drivers/net/usb/r8152.c#L680)
> ?

We can, but it'll bring some inconsistencies inside of rtl8152_table[], since we don't know idProduct for other devices.

Kai-Heng

> 
>>                set_bit(LENOVO_MACPASSTHRU, &tp->flags);
>> 
>>        if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial &&
>> --
>> 2.17.1
>>