linux-kernel - Re: [PATCH net-next] r8152; preserve device list format

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Message-ID: <878ri86o6j.fsf@miraculix.mork.no>
Date:   Thu, 12 Jan 2023 11:29:40 +0100
From:   Bjørn Mork <bjorn@...k.no>
To:     Greg KH <greg@...ah.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Andre Przywara <andre.przywara@....com>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, linux-usb@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] r8152; preserve device list format

Bjørn Mork <bjorn@...k.no> writes:
> Greg KH <greg@...ah.com> writes:
>
>> No need for this, just backport the original change to older kernels and
>> all will be fine.
>>
>> Don't live with stuff you don't want to because of stable kernels,
>> that's not how this whole process works at all :)
>
> OK, thanks.  Will prepare a patch for stable instead then.
>
> But I guess the original patch is unacceptable for stable as-is? It
> changes how Linux react to these devces, and includes a completely new
> USB device driver (i.e not interface driver).

Doh!  I gotta start thinking before I send email.  Will start right
after sending this one ;-)

We cannot backport the device-id table change to stable without taking
the rest of the patch. The strategy used by the old driver needs two
entries per device ID, which is why the macro was there.

So the question is: Can commit ec51fbd1b8a2 ("r8152: add USB device
driver for config selection") be accepted in stable?

( Direct link for convenience since it's not yet in mainline:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/drivers/net/usb/r8152.c?id=ec51fbd1b8a2bca2948dede99c14ec63dc57ff6b
)

This is not within the rules as I read them, but it's your call...


Bjørn