On Wednesday 19 September 2012 13:27:47 James Bottomley wrote:

On Wed, 2012-09-19 at 16:03 +0800, Aaron Lu wrote:

quoted

Hi James,

May I know if this patchset will enter v3.7?

Sigh, well, I was hoping to persuade the PM people to sort this out
first.

The first observation is that all this looks to be too specific.  ZPO
may be ACPI specific, but the property it abstracts: whether the
particular device is powered off or not is generic and probably should
be known at the generic PM level.  Nothing actually really cares about
how we power off the device until you get all the way down to the ACPI
controller.

The SCSI layer however needs to know whether the cache is handled
by the OS or in the device and under which circumstances a device
can detect media change events.

	Regards
		Oliver


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