linux-kernel - Re: [PATCH, post-2.6.36 regression fix] r8169: Fix runtime power management

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Message-ID: <20101209092804.GA4113@electric-eye.fr.zoreil.com>
Date:	Thu, 9 Dec 2010 10:28:04 +0100
From:	Francois Romieu <romieu@...zoreil.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	David Miller <davem@...emloft.net>,
	Matthew Garrett <mjg@...hat.com>, netdev@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>
Subject: Re: [PATCH, post-2.6.36 regression fix] r8169: Fix runtime power management

Rafael J. Wysocki <rjw@...k.pl> :
[...]
> I noticed that one of the post-2.6.36 patches broke runtime PM of the
> r8169 on my MSI Wind test machine in such a way that the link was not
> brought up after reconnecting the network cable.
> 
> In the process of debugging the issue I realized that we only should
> invoke the runtime PM functions in rtl8169_check_link_status() when
> link change is reported and if we do so, the problem goes away.
> Moreover, this allows rtl8169_runtime_idle() to be simplified quite
> a bit.
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>

Acked-by: Francois Romieu <romieu@...zoreil.com>

-- 
Ueimor
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