The following commit has been merged into the x86/pasid branch of tip: Commit-ID: 7a853c2d5951419fdf3c1c9d2b6f5a38f6a6857d Gitweb: https://git.kernel.org/tip/7a853c2d5951419fdf3c1c9d2b6f5a38f6a6857d Author: Fenghua Yu <fenghua.yu@xxxxxxxxx> AuthorDate: Mon, 07 Feb 2022 15:02:45 -08:00 Committer: Borislav Petkov <bp@xxxxxxx> CommitterDate: Mon, 14 Feb 2022 19:23:50 +01:00 mm: Change CONFIG option for mm->pasid field 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@xxxxxxxxxxxxxxx> Signed-off-by: Fenghua Yu <fenghua.yu@xxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx> Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220207230254.3342514-3-fenghua.yu@xxxxxxxxx --- 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 5140e5f..c5cbfd7 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 d75a528..6ee7551 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 }
![]() |