Re: [PATCH] net: set default DEVTYPE for all ethernet based devices

From: Tom Gundersen
Date: Thu Jan 30 2014 - 19:55:01 EST


Hi Veaceslav,

Thanks for your quick reply.

On Thu, Jan 30, 2014 at 4:05 PM, Veaceslav Falico <vfalico@xxxxxxxxxx> wrote:
> On Thu, Jan 30, 2014 at 02:20:02PM +0100, Tom Gundersen wrote:
>>
>> In systemd's networkd and udevd, we would like to give the administrator a
>> simple way to filter net devices by their DEVTYPE [0][1]. Other software
>> such as ConnMan and NetworkManager uses a similar filtering already.
>>
>> Currently, plain ethernet devices have DEVTYPE=(null). This patch sets the
>> devtype to "ethernet" instead. This avoids the need for special-casing the
>> DEVTYPE=(null) case in userspace, and also avoids false positives, as
>> there
>> are several other types of netdevs that also have DEVTYPE=(null).
>
>
> There are quite a few users at least in usb and wireless drivers:
>
> net#git grep alloc_etherdev drivers/net/wireless/ drivers/net/usb | wc -l
> 18
>
> In usb, though, there might be some false positives of this grep, as
> there are a few devices which might be considered ethernet.

Ah, yes I missed the #define of alloc_etherdev(). Looking through
these, it shouldn't be too hard to keep this patch and additionally
fix up the false positives to opt-out of setting the DEVTYPE. Does
that sound like something that would be acceptable?

Cheers,

Tom
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