RE: [PATCH rc v7 5/6] iommu: Fix ATS invalidation timeouts during __iommu_remove_group_pasid()
From: Tian, Kevin
Date: Tue Apr 21 2026 - 03:17:01 EST
> From: Nicolin Chen <nicolinc@xxxxxxxxxx>
> Sent: Sunday, April 19, 2026 7:42 AM
>
> If a device is blocked, its PASID domains are already detached. Repeating
> iommu_remove_dev_pasid() is unnecessary and might trigger ATS
> invalidation
> timeouts.
>
> Skip the iommu_remove_dev_pasid() call upon the blocked flag.
>
> Fixes: c279e83953d9 ("iommu: Introduce
> pci_dev_reset_iommu_prepare/done()")
> Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: Kevin Tian <kevin.tian@xxxxxxxxx>
It's not reported by me. Instead, I just tried to copy the words from Sashiko (same
in next patch).
with that fixed:
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
btw not sure whether Joerg plans to enable Sashiko auto-reply to the iommu
list. I feel most suggestions there are positive.
If it won't happen near term, suggest you find a way to check Sashilo manually
for future patches.