RE: [PATCH 04/10] iommu/ioasid: Rename ioasid_set_data to avoid confusion with ioasid_set
> From: Jacob Pan
> 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
> ---
> 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(>devs);
> mmput(svm->mm);
> }
> sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
> if (!sdev) {
> if (list_empty(>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(>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(>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
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[PATCH 04/10] iommu/ioasid: Rename ioasid_set_data to avoid confusion with ioasid_set
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
---
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(>devs);
mmput(svm->mm);
}
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev) {
if (list_empty(>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(>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(>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
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