netdev - Re: [PATCH v2] Revert "alx: remove WoL support"

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Date:   Mon, 28 May 2018 13:06:31 +0800
From:   AceLan Kao <acelan.kao@...onical.com>
To:     David Miller <davem@...emloft.net>
Cc:     James Cliburn <jcliburn@...il.com>,
        Chris Snook <chris.snook@...il.com>, rakesh@...era.com,
        netdev@...r.kernel.org, Emily Chien <emily.chien@...onical.com>,
        Andrew Lunn <andrew@...n.ch>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        Johannes Berg <johannes@...solutions.net>,
        Johannes Stezenbach <js@...21.net>
Subject: Re: [PATCH v2] Revert "alx: remove WoL support"

Hi all,

Just inform you a news reported by a user who confirmed the wake up
issue can't be reproduce by the new kernel.
https://bugzilla.kernel.org/show_bug.cgi?id=61651#c126

<quote>
Guillaume de Jabrun 2018-05-27 15:12:54 UTC

I am using this patch for a long time. I was experiencing the "wake up
twice" bug, but with recent kernel version, I don't have this issue
anymore.
I can't tell which version actually fix the bug (I don't remember..).
</quote>

Best regards,
AceLan Kao.

2018-05-21 11:18 GMT+08:00 David Miller <davem@...emloft.net>:
> From: AceLan Kao <acelan.kao@...onical.com>
> Date: Mon, 21 May 2018 11:14:00 +0800
>
>> We are willing to fix the issue, but we don't have a machine to
>> reproduce it, and the WoL feature has been removed 5 years ago, it's
>> hard to find those buggy machines.
>
> Have you bothered to ask the person who did the revert?
>
>> WoL is a feature that is only used by a very small group of people,
>> and the wake up issue looks like only happens on some
>> platforms. Which means only small part of the group of people are
>> affected.
>
> One of those people was the wireless networking stack maintainer.
>
>> So, it's not a serious issue worth to remove it from alx driver.
>
> I disagree.
>
> You must fix the regression solved by the revert, before adding
> WoL support back to the driver.
>
> I'm not going to say this again.
>
> Thank you.
>