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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:08 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:08 +0100 |
| commit | ca5b74d2675a44f54aacb919c1cf022463e2f738 (patch) | |
| tree | 08081e436bfed580e7f5a059faa1c77da3dbd58e /drivers/iommu | |
| parent | driver core / ACPI: Represent ACPI companions using fwnode_handle (diff) | |
| download | linux-ca5b74d2675a44f54aacb919c1cf022463e2f738.tar.xz linux-ca5b74d2675a44f54aacb919c1cf022463e2f738.zip | |
ACPI: Introduce has_acpi_companion()
Now that the ACPI companions of devices are represented by pointers
to struct fwnode_handle, it is not quite efficient to check whether
or not an ACPI companion of a device is present by evaluating the
ACPI_COMPANION() macro.
For this reason, introduce a special static inline routine for that,
has_acpi_companion(), and update the code to use it where applicable.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index ae4c1a854e57..591b84331315 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -684,7 +684,7 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf if (dev_is_pci(dev)) { pdev = to_pci_dev(dev); segment = pci_domain_nr(pdev->bus); - } else if (ACPI_COMPANION(dev)) + } else if (has_acpi_companion(dev)) dev = &ACPI_COMPANION(dev)->dev; rcu_read_lock(); |