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SubjectRE: [PATCH 04/10] iommu/ioasid: Rename ioasid_set_data to avoid confusion with ioasid_set
Date
> From: Jacob Pan <jacob.jun.pan@linux.intel.com>
> Sent: Thursday, March 26, 2020 1:55 AM
>
> IOASID set refers to a group of IOASIDs that shares the same token.
> ioasid_set_data() function is used to attach a private data to an IOASID,
> rename it to ioasid_attach_data() avoid being confused with the group/set
> concept.
>
> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
> ---
> drivers/iommu/intel-svm.c | 11 ++++++-----
> drivers/iommu/ioasid.c | 6 +++---
> include/linux/ioasid.h | 4 ++--
> 3 files changed, 11 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
> index b6405df6cfb5..1991587fd3fd 100644
> --- a/drivers/iommu/intel-svm.c
> +++ b/drivers/iommu/intel-svm.c
> @@ -319,14 +319,15 @@ int intel_svm_bind_gpasid(struct iommu_domain
> *domain,
> svm->gpasid = data->gpasid;
> svm->flags |= SVM_FLAG_GUEST_PASID;
> }
> - ioasid_set_data(data->hpasid, svm);
> +
> + ioasid_attach_data(data->hpasid, svm);
> INIT_LIST_HEAD_RCU(&svm->devs);
> mmput(svm->mm);
> }
> sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
> if (!sdev) {
> if (list_empty(&svm->devs)) {
> - ioasid_set_data(data->hpasid, NULL);
> + ioasid_attach_data(data->hpasid, NULL);
> kfree(svm);
> }
> ret = -ENOMEM;
> @@ -346,7 +347,7 @@ int intel_svm_bind_gpasid(struct iommu_domain
> *domain,
> * was allocated in this function.
> */
> if (list_empty(&svm->devs)) {
> - ioasid_set_data(data->hpasid, NULL);
> + ioasid_attach_data(data->hpasid, NULL);
> kfree(svm);
> }
> goto out;
> @@ -375,7 +376,7 @@ int intel_svm_bind_gpasid(struct iommu_domain
> *domain,
> */
> kfree(sdev);
> if (list_empty(&svm->devs)) {
> - ioasid_set_data(data->hpasid, NULL);
> + ioasid_attach_data(data->hpasid, NULL);
> kfree(svm);
> }
> goto out;
> @@ -438,7 +439,7 @@ int intel_svm_unbind_gpasid(struct device *dev, int
> pasid)
> * that PASID allocated by one guest cannot
> be
> * used by another.
> */
> - ioasid_set_data(pasid, NULL);
> + ioasid_attach_data(pasid, NULL);
> kfree(svm);
> }
> }
> diff --git a/drivers/iommu/ioasid.c b/drivers/iommu/ioasid.c
> index 27ee57f7079b..6265d2dbbced 100644
> --- a/drivers/iommu/ioasid.c
> +++ b/drivers/iommu/ioasid.c
> @@ -292,14 +292,14 @@ void ioasid_unregister_allocator(struct
> ioasid_allocator_ops *ops)
> EXPORT_SYMBOL_GPL(ioasid_unregister_allocator);
>
> /**
> - * ioasid_set_data - Set private data for an allocated ioasid
> + * ioasid_attach_data - Set private data for an allocated ioasid
> * @ioasid: the ID to set data
> * @data: the private data
> *
> * For IOASID that is already allocated, private data can be set
> * via this API. Future lookup can be done via ioasid_find.
> */
> -int ioasid_set_data(ioasid_t ioasid, void *data)
> +int ioasid_attach_data(ioasid_t ioasid, void *data)
> {
> struct ioasid_data *ioasid_data;
> int ret = 0;
> @@ -321,7 +321,7 @@ int ioasid_set_data(ioasid_t ioasid, void *data)
>
> return ret;
> }
> -EXPORT_SYMBOL_GPL(ioasid_set_data);
> +EXPORT_SYMBOL_GPL(ioasid_attach_data);
>
> /**
> * ioasid_alloc - Allocate an IOASID
> diff --git a/include/linux/ioasid.h b/include/linux/ioasid.h
> index be158e03c034..8c82d2625671 100644
> --- a/include/linux/ioasid.h
> +++ b/include/linux/ioasid.h
> @@ -39,7 +39,7 @@ void *ioasid_find(struct ioasid_set *set, ioasid_t ioasid,
> bool (*getter)(void *));
> int ioasid_register_allocator(struct ioasid_allocator_ops *allocator);
> void ioasid_unregister_allocator(struct ioasid_allocator_ops *allocator);
> -int ioasid_set_data(ioasid_t ioasid, void *data);
> +int ioasid_attach_data(ioasid_t ioasid, void *data);
> void ioasid_install_capacity(ioasid_t total);
> int ioasid_alloc_set(struct ioasid_set *token, ioasid_t quota, int *sid);
> void ioasid_free_set(int sid, bool destroy_set);
> @@ -79,7 +79,7 @@ static inline void ioasid_unregister_allocator(struct
> ioasid_allocator_ops *allo
> {
> }
>
> -static inline int ioasid_set_data(ioasid_t ioasid, void *data)
> +static inline int ioasid_attach_data(ioasid_t ioasid, void *data)
> {
> return -ENOTSUPP;
> }
> --
> 2.7.4

Reviewed-by: Kevin Tian <kevin.tian@intel.com>

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