linux-kernel - Re: [PATCH V2] r8152: add Linksys USB3GIGV1 id

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Date:   Thu, 28 Sep 2017 16:53:35 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     "Rustad, Mark D" <mark.d.rustad@...el.com>
Cc:     Grant Grundler <grundler@...omium.org>,
        Oliver Neukum <oneukum@...e.com>,
        "David S . Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hayes Wang <hayeswang@...ltek.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-usb <linux-usb@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH V2] r8152: add Linksys USB3GIGV1 id

Hi,

On Thu, Sep 28, 2017 at 3:28 PM, Rustad, Mark D <mark.d.rustad@...el.com> wrote:
>
>> On Sep 27, 2017, at 9:39 AM, Grant Grundler <grundler@...omium.org> wrote:
>>
>> On Wed, Sep 27, 2017 at 12:15 AM, Oliver Neukum <oneukum@...e.com> wrote:
>>> Am Dienstag, den 26.09.2017, 08:19 -0700 schrieb Doug Anderson:
>>>>
>>>> I know that for at least some of the adapters in the CDC Ethernet
>>>> blacklist it was claimed that the CDC Ethernet support in the adapter
>>>> was kinda broken anyway so the blacklist made sense.  ...but for the
>>>> Linksys Gigabit adapter the CDC Ethernet driver seems to work OK, it's
>>>> just not quite as full featured / efficient as the R8152 driver.
>>>>
>>>> Is that not a concern?  I guess you could tell people in this
>>>> situation that they simply need to enable the R8152 driver to get
>>>> continued support for their Ethernet adapter?
>>>
>>> Hi,
>>>
>>> yes, it is a valid concern. An #ifdef will be needed.
>>
>> Good idea - I will post V3 shortly.
>>
>> I'm assuming you mean to add #ifdef CONFIG_USB_RTL8152 around the
>> blacklist entry in cdc_ether driver.
>
> Shouldn't that be an #if IS_ENABLED(...) test, since that seems to be the proper way to check configured drivers.

Yes, I had the same feedback on v3.  See my comments at
<https://patchwork.kernel.org/patch/9974485/>.  Grant has fixed it in
v4.  Please see <https://patchwork.kernel.org/patch/9976657/>.  :)

-Doug