Re: [PATCH v2 0/4] iommu: Fix the longstanding probe issues

[Joerg Roedel <joro@8bytes.org>]

On Fri, Feb 28, 2025 at 03:46:29PM +0000, Robin Murphy wrote:
> This spin irons out a couple of issues which v1 had. Firstly there
> should now be no change in behaviour for the weird of_dma_configure()
> calls, other than possibly getting the warning if they deserve it.
> Secondly I think there was still a possibility for probe to run via
> the replay path while its "real" probe was waiting to reacquire the
> lock; this is now solved by making dev->iommu a reliable indicator of
> the probe lifecycle, with a couple more prep patches.
> 
> Thanks,
> Robin.
> 
> 
> Robin Murphy (4):
>   iommu: Handle race with default domain setup
>   iommu: Resolve ops in iommu_init_device()
>   iommu: Keep dev->iommu state consistent
>   iommu: Get DT/ACPI parsing into the proper probe path
> 
>  drivers/acpi/arm64/dma.c        |  5 +++
>  drivers/acpi/scan.c             |  7 -----
>  drivers/amba/bus.c              |  3 +-
>  drivers/base/platform.c         |  3 +-
>  drivers/bus/fsl-mc/fsl-mc-bus.c |  3 +-
>  drivers/cdx/cdx.c               |  3 +-
>  drivers/iommu/iommu-priv.h      |  2 ++
>  drivers/iommu/iommu.c           | 55 ++++++++++++++++++++++++---------
>  drivers/iommu/of_iommu.c        | 13 ++++++--
>  drivers/of/device.c             |  7 ++++-
>  drivers/pci/pci-driver.c        |  3 +-
>  11 files changed, 74 insertions(+), 30 deletions(-)

Applied, thanks Robin.