linux-kernel - Re: [PATCH] sata_mv: Manage SATA port multiplier while searching for active links

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Message-ID: <551A498A.2010008@free-electrons.com>
Date:	Tue, 31 Mar 2015 09:15:22 +0200
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Tejun Heo <tj@...nel.org>
CC:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	Lior Amsalem <alior@...vell.com>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>
Subject: Re: [PATCH] sata_mv: Manage SATA port multiplier while searching
 for active links

Hi Tejun,

On 30/03/2015 19:35, Tejun Heo wrote:
> Hello,
> 
> On Mon, Mar 30, 2015 at 07:32:45PM +0200, Gregory CLEMENT wrote:
>> From: Nadav Haklai <nadavh@...vell.com>
>>
>> With this patch, when searching for active link, first search through
>> the port multiplier links. And then fall to the default ap active_tag
>> only if no there is no active link in the port multiplier.
> 
> What does this fix?  What was broken before?  What's the impact of the
> patch?  A patch description which just restates the patch content
> isn't all that useful.

I _thought_ that the purpose of this patch was to manage the port multiplier,
and without this patch we don't only handle it. I will ask more detail and
come back with a new version of the patch with a more useful description.

Thanks,

Gregory



> 
> Thanks.
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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