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SubjectRe: [PATCH 01/11] iommu: Rename iommu_get_instance()
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Hi Joerg,

I'm really liking this series! Superficially it doesn't seem to break
anything on my Juno, but I'll give it a more thorough workout soon.

Just a few comments from skimming through...

On 09/02/17 11:32, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@suse.de>
>
> Rename the function to iommu_ops_from_fwnode(), because that
> is what the function actually does. The new name is much
> more descriptive about what the function does.
>
> Signed-off-by: Joerg Roedel <jroedel@suse.de>
> ---
> drivers/acpi/arm64/iort.c | 2 +-
> drivers/iommu/iommu.c | 2 +-
> include/linux/iommu.h | 4 ++--
> include/linux/of_iommu.h | 2 +-
> 4 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index e0d2e6e..3752521 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -536,7 +536,7 @@ static const struct iommu_ops *iort_iommu_xlate(struct device *dev,
> if (!iort_fwnode)
> return NULL;
>
> - ops = iommu_get_instance(iort_fwnode);
> + ops = iommu_ops_from_fwnode(iort_fwnode);
> if (!ops)
> return NULL;
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index dbe7f65..0ee05bb 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -1653,7 +1653,7 @@ void iommu_register_instance(struct fwnode_handle *fwnode,
> spin_unlock(&iommu_instance_lock);
> }
>
> -const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode)
> +const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
> {
> struct iommu_instance *instance;
> const struct iommu_ops *ops = NULL;
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index 0ff5111..085e1f0 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -354,7 +354,7 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
> int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids);
> void iommu_register_instance(struct fwnode_handle *fwnode,
> const struct iommu_ops *ops);
> -const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode);
> +const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode);
>
> #else /* CONFIG_IOMMU_API */
>
> @@ -590,7 +590,7 @@ static inline void iommu_register_instance(struct fwnode_handle *fwnode,
> }
>
> static inline
> -const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode)
> +const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
> {
> return NULL;
> }
> diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
> index 6a7fc50..66fcbc9 100644
> --- a/include/linux/of_iommu.h
> +++ b/include/linux/of_iommu.h
> @@ -39,7 +39,7 @@ static inline void of_iommu_set_ops(struct device_node *np,
>
> static inline const struct iommu_ops *of_iommu_get_ops(struct device_node *np)
> {
> - return iommu_get_instance(&np->fwnode);
> + return iommu_ops_from_fwnode(&np->fwnode);
> }

Note that you've already got Lorenzo's patch queued to remove these of_
wrappers.

Robin.

>
> extern struct of_device_id __iommu_of_table;
>

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