linux-kernel - Re: [PATCH] ahci: Use dev_info() to inform about the lack of Device Sleep support

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Message-ID: <20150109215401.GG2785@htj.dyndns.org>
Date:	Fri, 9 Jan 2015 16:54:01 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Gabriele Mazzotta <gabriele.mzt@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ahci: Use dev_info() to inform about the lack of Device
 Sleep support

On Thu, Jan 08, 2015 at 07:41:34PM +0100, Gabriele Mazzotta wrote:
> According to the Serial ATA AHCI specification, Device Sleep is an
> optional feature and as such no errors should be printed if it's
> missing. Keep informing users, but use dev_info() instead of dev_err().

Does this condition actually occur?  The cap's advertise that the
controller does DEVSLP but the port register doesn't have it?

Thanks.

-- 
tejun
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