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| author |   Joerg Roedel <jroedel@suse.de> | 2018-11-29 14:01:00 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-12-17 10:38:30 +0100 |
| commit | 8097e53eaba2bbae99dee661778ca20490b73951 (patch) | |
| tree | bd8fb390c076a9676a5dec7baf5ab64eb7b68865 /drivers/acpi | |
| parent | iommu: Introduce wrappers around dev->iommu_fwspec (diff) | |
| download | linux-dev-8097e53eaba2bbae99dee661778ca20490b73951.tar.xz linux-dev-8097e53eaba2bbae99dee661778ca20490b73951.zip | |
ACPI/IORT: Use helper functions to access dev->iommu_fwspec
Use the new helpers dev_iommu_fwspec_get()/set() to access
the dev->iommu_fwspec pointer. This makes it easier to move
that pointer later into another struct.
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 2a361e22d38d..8fbb9d0430cf 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -779,7 +779,7 @@ static inline bool iort_iommu_driver_enabled(u8 type) static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev) { struct acpi_iort_node *iommu; - struct iommu_fwspec *fwspec = dev->iommu_fwspec; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); iommu = iort_get_iort_node(fwspec->iommu_fwnode); @@ -794,9 +794,10 @@ static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev) return NULL; } -static inline const struct iommu_ops *iort_fwspec_iommu_ops( - struct iommu_fwspec *fwspec) +static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev) { + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); + return (fwspec && fwspec->ops) ? fwspec->ops : NULL; } @@ -824,6 +825,7 @@ static inline int iort_add_device_replay(const struct iommu_ops *ops, */ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) { + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct acpi_iort_its_group *its; struct acpi_iort_node *iommu_node, *its_node = NULL; int i, resv = 0; @@ -841,9 +843,9 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) * a given PCI or named component may map IDs to. */ - for (i = 0; i < dev->iommu_fwspec->num_ids; i++) { + for (i = 0; i < fwspec->num_ids; i++) { its_node = iort_node_map_id(iommu_node, - dev->iommu_fwspec->ids[i], + fwspec->ids[i], NULL, IORT_MSI_TYPE); if (its_node) break; @@ -874,8 +876,7 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) return (resv == its->its_count) ? resv : -ENODEV; } #else -static inline const struct iommu_ops *iort_fwspec_iommu_ops( - struct iommu_fwspec *fwspec) +static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev); { return NULL; } static inline int iort_add_device_replay(const struct iommu_ops *ops, struct device *dev) @@ -1045,7 +1046,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) * If we already translated the fwspec there * is nothing left to do, return the iommu_ops. */ - ops = iort_fwspec_iommu_ops(dev->iommu_fwspec); + ops = iort_fwspec_iommu_ops(dev); if (ops) return ops; @@ -1084,7 +1085,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) * add_device callback for dev, replay it to get things in order. */ if (!err) { - ops = iort_fwspec_iommu_ops(dev->iommu_fwspec); + ops = iort_fwspec_iommu_ops(dev); err = iort_add_device_replay(ops, dev); } |