[PATCH 0/5] Introduce device_iommu_maped() function

Joerg Roedel
2018-12-04T17:26:56Z

Hi,

here is a patch-set to replace the dev->iommu_group checks
in the source tree by a proper function call. The pointer
checks mostly happen to check whether a device is managed my
an IOMMU. For that purpose a pointer check is not very
descriptable, so replace it by a function call that make its
purpose readable.

This also starts to remove direct access to the
dev->iommu_group pointer outside of iommu-code. This is
another move towards consolidating the various
iommu-related pointers in 'struct device' into one pointer
only.

Please review.

Thanks,

Joerg

Joerg Roedel (5):
driver core: Introduce device_iommu_mapped() function
iommu/of: Use device_iommu_mapped()
ACPI/IORT: Use device_iommu_mapped()
powerpc/iommu: Use device_iommu_mapped()
xhci: Use device_iommu_mapped()

arch/powerpc/kernel/eeh.c | 2 +-
arch/powerpc/kernel/iommu.c | 6 +++---
drivers/acpi/arm64/iort.c | 2 +-
drivers/iommu/of_iommu.c | 2 +-
drivers/usb/host/xhci.c | 2 +-
include/linux/device.h | 10 ++++++++++
6 files changed, 17 insertions(+), 7 deletions(-)

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2.17.1