iommu/vt-d: Refactor find_domain() helper

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Current find_domain() helper checks and does the deferred domain
attachment and return the domain in use. This isn't always the
use case for the callers. Some callers only want to retrieve the
current domain in use.

This refactors find_domain() into two helpers: 1) find_domain()
only returns the domain in use; 2) deferred_attach_domain() does
the deferred domain attachment if required and return the domain
in use.

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Lu Baolu 2019-09-21 15:06:44 +08:00 • committed by Joerg Roedel

parent 4f5cafb5cb

commit 1ee0186b9a

1 changed files with 18 additions and 13 deletions

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drivers/iommu/intel-iommu.c

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