Messages in this thread Patch in this message |  | | From | Fenghua Yu <> | Subject | [PATCH v4 02/11] mm: Change CONFIG option for mm->pasid field | Date | Mon, 7 Feb 2022 15:02:45 -0800 |
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This currently depends on CONFIG_IOMMU_SUPPORT. But it is only needed when CONFIG_IOMMU_SVA option is enabled.
Change the CONFIG guards around definition and initialization of mm->pasid field.
Suggested-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> --- v4: - Add "Reviewed-by: Thomas Gleixner <tglx@linutronix.de>" (Thomas).
v2: - Change condition to more accurate CONFIG_IOMMU_SVA (Jacob and Tony)
include/linux/mm_types.h | 2 +- kernel/fork.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 5140e5feb486..c5cbfd7915ad 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -631,7 +631,7 @@ struct mm_struct { #endif struct work_struct async_put_work; -#ifdef CONFIG_IOMMU_SUPPORT +#ifdef CONFIG_IOMMU_SVA u32 pasid; #endif } __randomize_layout; diff --git a/kernel/fork.c b/kernel/fork.c index d75a528f7b21..6ee7551d3bd2 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1021,7 +1021,7 @@ static void mm_init_owner(struct mm_struct *mm, struct task_struct *p) static void mm_init_pasid(struct mm_struct *mm) { -#ifdef CONFIG_IOMMU_SUPPORT +#ifdef CONFIG_IOMMU_SVA mm->pasid = INIT_PASID; #endif } -- 2.35.1
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