On Wed, Feb 14, 2024 at 11:53:20PM +1100, Michael Ellerman wrote:
> Venkat Rao Bagalkote <venka...@linux.vnet.ibm.com> writes:
> > Thanks for the patch. Applied this patch and verified and issue is fixed.
> >
> > This issue way originally reported in the below mail.
> >
> > https://marc.info/?l=linux-kernel&m=170737160630106&w=2
>
> Please use lore for links, in this case:
>
> https://lore.kernel.org/all/274e0d2b-b5cc-475e-94e6-8427e88e2...@linux.vnet.ibm.com/
Also if you are respinning you may prefer this
@@ -1285,14 +1285,15 @@ spapr_tce_platform_iommu_attach_dev(struct iommu_domain
*platform_domain,
struct device *dev)
{
struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
- struct iommu_group *grp = iommu_group_get(dev);
struct iommu_table_group *table_group;
+ struct iommu_group *grp;
int ret = -EINVAL;
/* At first attach the ownership is already set */
if (!domain)
return 0;
+ grp = iommu_group_get(dev);
if (!grp)
return -ENODEV;
Which is sort of why this happened in the first place :)
Jason
