Re: [PATCH v2 2/4] iommufd/viommu: Fix the uninitialized iommufd_vdevice::ictx
From: Xu Yilun
Date: Tue Jun 24 2025 - 02:42:59 EST
On Tue, Jun 24, 2025 at 11:24:02AM +0800, Baolu Lu wrote:
> 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.
Ah, I see the thread. This patch should be dropped.
Thanks,
Yilun
>
> Thanks,
> baolu