linux-kernel - Re: [PATCH v2 3/3] scsi: allow scsi devices to use direct complete

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Message-ID: <20160227083857.GY1770@lahna.fi.intel.com>
Date:	Sat, 27 Feb 2016 10:38:57 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	"dbasehore ." <dbasehore@...omium.org>
Cc:	Linux-pm mailing list <linux-pm@...r.kernel.org>,
	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Martin K . Petersen" <martin.petersen@...cle.com>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] scsi: allow scsi devices to use direct complete

On Sat, Feb 27, 2016 at 12:10:03AM -0800, dbasehore . wrote:
> A device is not able to use direct complete if its children do not
> also use direct complete. Even though the SCSI layer leaves devices
> runtime suspended, the way it does it still prevents its parent from
> using direct complete.

Okay.

Do you need to provide ->complete() hook that then resumes the device
when system is resumed (since the device resume hook is never called
when direct_complete is set)? Along the lines of
pm_complete_with_resume_check().