Drop the pasid field, as all the information needed for sva domain
management has been moved to the newly added iommu_mm field.

Signed-off-by: Tina Zhang <tina.zhang@intel.com>
---
 include/linux/mm_types.h | 1 -
 mm/init-mm.c             | 3 ---
 2 files changed, 4 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 3fd65b7537f0e..6cb5cc53c4803 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -808,7 +808,6 @@ struct mm_struct {
 		struct work_struct async_put_work;
 
 #ifdef CONFIG_IOMMU_SVA
-		u32 pasid;
 		struct iommu_mm_data *iommu_mm;
 #endif
 #ifdef CONFIG_KSM
diff --git a/mm/init-mm.c b/mm/init-mm.c
index efa97b57acfd8..69719291463ed 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -42,9 +42,6 @@ struct mm_struct init_mm = {
 #endif
 	.user_ns	= &init_user_ns,
 	.cpu_bitmap	= CPU_BITS_NONE,
-#ifdef CONFIG_IOMMU_SVA
-	.pasid		= IOMMU_PASID_INVALID,
-#endif
 	INIT_MM_CONTEXT(init_mm)
 };
 
-- 
2.34.1

On 2023/8/27 16:44, Tina Zhang wrote:
> Drop the pasid field, as all the information needed for sva domain
> management has been moved to the newly added iommu_mm field.
> 
> Signed-off-by: Tina Zhang<tina.zhang@intel.com>
> ---
>   include/linux/mm_types.h | 1 -
>   mm/init-mm.c             | 3 ---
>   2 files changed, 4 deletions(-)

mm->pasid is dead code now. So remove it.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>

Best regards,
baolu

On Sun, 2023-08-27 at 16:44 +0800, Tina Zhang wrote:
> Drop the pasid field, as all the information needed for sva domain
> management has been moved to the newly added iommu_mm field.

I think it should say "Drop" instead of "Deprecate" in the subject line
as well since this is field is completely removed.

> 
> Signed-off-by: Tina Zhang <tina.zhang@intel.com>
> ---
>  include/linux/mm_types.h | 1 -
>  mm/init-mm.c             | 3 ---
>  2 files changed, 4 deletions(-)
> 
> diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> index 3fd65b7537f0e..6cb5cc53c4803 100644
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -808,7 +808,6 @@ struct mm_struct {
>  		struct work_struct async_put_work;
>  
>  #ifdef CONFIG_IOMMU_SVA
> -		u32 pasid;
>  		struct iommu_mm_data *iommu_mm;
>  #endif
>  #ifdef CONFIG_KSM
> diff --git a/mm/init-mm.c b/mm/init-mm.c
> index efa97b57acfd8..69719291463ed 100644
> --- a/mm/init-mm.c
> +++ b/mm/init-mm.c
> @@ -42,9 +42,6 @@ struct mm_struct init_mm = {
>  #endif
>  	.user_ns	= &init_user_ns,
>  	.cpu_bitmap	= CPU_BITS_NONE,
> -#ifdef CONFIG_IOMMU_SVA
> -	.pasid		= IOMMU_PASID_INVALID,
> -#endif
>  	INIT_MM_CONTEXT(init_mm)
>  };
>