Re: [PATCH v2 2/4] iommufd/viommu: Fix the uninitialized iommufd_vdevice::ictx

From: Baolu Lu
Date: Mon Jun 23 2025 - 23:25:29 EST


On 6/23/25 17:49, Xu Yilun wrote:
Fix the uninitialized iommufd_vdevice::ictx. No code was using this
field before, but later vdevice will use it to sync up with idevice on
destroy paths.

Fixes: 0ce5c2477af2 ("iommufd/viommu: Add IOMMUFD_OBJ_VDEVICE and IOMMU_VDEVICE_ALLOC ioctl")
Cc:<stable@xxxxxxxxxxxxxxx>
Signed-off-by: Xu Yilun<yilun.xu@xxxxxxxxxxxxxxx>
---
drivers/iommu/iommufd/viommu.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/iommufd/viommu.c b/drivers/iommu/iommufd/viommu.c
index 01df2b985f02..4577b88c8560 100644
--- a/drivers/iommu/iommufd/viommu.c
+++ b/drivers/iommu/iommufd/viommu.c
@@ -130,6 +130,7 @@ int iommufd_vdevice_alloc_ioctl(struct iommufd_ucmd *ucmd)
goto out_put_idev;
}
+ vdev->ictx = ucmd->ictx;

iommufd_vdevice::ictx has been removed by this commit:

6e235a772199 ("iommufd: Drop unused ictx in struct iommufd_vdevice")

in linux-next.

Thanks,
baolu