From: Dan Williams <dan.j.williams@intel.com>
Date: Thu, 31 Mar 2011 20:10:44 +0000 (-0700)
Subject: isci: fix fragile/conditional isci_host lookups
X-Git-Tag: v3.0-rc6~1^2~1^2~181
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4393aa4e6b9517a666f0ef6b774fd421a9dc4c68;p=pandora-kernel.git

isci: fix fragile/conditional isci_host lookups

A domain_device can always reference back to ->lldd_ha unlike local lldd
structures.  Fix up cases where the driver uses local objects to look up the
isci_host.  This also changes the calling conventions of some routines to
expect a valid isci_host parameter rather than re-lookup the pointer on entry.

Incidentally cleans up some macros that are longer to type than the open-coded
equivalent:
  isci_host_from_sas_ha
  isci_dev_from_domain_dev

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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