Joerg Roedel dbba197edf driver core: Introduce device_iommu_mapped() function ...

Some places in the kernel check the iommu_group pointer in
'struct device' in order to find out whether a device is
mapped by an IOMMU.

This is not good way to make this check, as the pointer will
be moved to 'struct dev_iommu_data'. This way to make the
check is also not very readable.

Introduce an explicit function to perform this check.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

2018-12-17 10:38:43 +01:00

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