From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 27 Apr 2011 23:32:45 +0000 (-0700)
Subject: isci: merge remote_device substates into a single state machine
X-Git-Tag: v3.0-rc6~1^2~1^2~142
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab2e8f7d07f577ee39228fb3454b9f29eab0f312;p=pandora-kernel.git

isci: merge remote_device substates into a single state machine

A substate is just a state, so uplevel the smp and stp device substates.
Three tricks at work here:

1/ scic_sds_remote_device_ready_state_enter: needs to know the the device type
   so it can immediately transition to a stp or smp ready substate.

2/ scic_sds_remote_device_ready_state_exit: needs to know the device type. In
   the ssp case the device is no longer ready, in the stp, and smp case we have
   simply exited to a ready "substate".

3/ scic_sds_remote_device_resume_complete_handler: The one location
   where we directly check the current state against
   SCI_BASE_REMOTE_DEVICE_STATE_READY needed to comprehend the possible ready
   substates.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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