netdev - Re: r8169 Wake on Lan

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Message-ID: <20131126232101.GA7508@electric-eye.fr.zoreil.com>
Date:	Wed, 27 Nov 2013 00:21:01 +0100
From:	Francois Romieu <romieu@...zoreil.com>
To:	Pablo Cholaky <mrwaltercool@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: r8169 Wake on Lan

Pablo Cholaky <mrwaltercool@...il.com> :
[...]
> I have a HP ENVY laptop with this RealTek, and my laptop don't have a
> BIOS option to disable WOL. I'm currently using a script on start and
> shutdown to disable WOL, but could you guys make a module param to
> enable/disable WOL?

The kernel has to offer a standardized API. Module params are terrible
in this regard. Please forget it.

> This freaking WOL eats a lot of battery on my laptop and my scripts
> don't work when I'm using a hibernation or booting a Linux ISO per
> example.

(if a kernel change can propagate to your ISO, so can your wol
disabling scripts)

There may be something wrong wrt hibernation (real hibernation, not
runtime suspend, right ?) but I do not see how the current code could
change the WoL settings at suspend time for a downed interface.
Care to provide a short description for your hibernation use ?

The XID line included in dmesg output or plain dmesg itself will be
welcome to identify the r8169 chipset. It can make some difference in
the suspend / resume paths.

-- 
Ueimor
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