From d269ab61f4f8c56999fd26ade86def26db1fed09 Mon Sep 17 00:00:00 2001 From: Vasant Hegde Date: Fri, 9 Jun 2023 10:51:46 +0000 Subject: [PATCH] iommu/amd/iommu_v2: Clear pasid state in free path Clear pasid state in device amd_iommu_free_device() path. It will make sure no new ppr notifier is registered in free path. Suggested-by: Jason Gunthorpe Signed-off-by: Vasant Hegde Link: https://lore.kernel.org/r/20230609105146.7773-3-vasant.hegde@amd.com Signed-off-by: Joerg Roedel --- drivers/iommu/amd/iommu_v2.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c index 65d78d7..c5825e0 100644 --- a/drivers/iommu/amd/iommu_v2.c +++ b/drivers/iommu/amd/iommu_v2.c @@ -327,6 +327,9 @@ static void free_pasid_states(struct device_state *dev_state) put_pasid_state(pasid_state); + /* Clear the pasid state so that the pasid can be re-used */ + clear_pasid_state(dev_state, pasid_state->pasid); + /* * This will call the mn_release function and * unbind the PASID -- 2.7.4