linux-kernel - [PATCH 0/5] Introduce device_iommu

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Message-Id: <20181204172504.19708-1-joro@8bytes.org>
Date:   Tue,  4 Dec 2018 18:24:59 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     iommu@...ts.linux-foundation.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, Joerg Roedel <joro@...tes.org>
Subject: [PATCH 0/5] Introduce device_iommu_maped() function

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(-)

-- 
2.17.1