linux-kernel - Re: [PATCH 3/3] iommu: Clean up release

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Date:   Wed, 22 Jun 2022 09:36:38 +0800
From:   Baolu Lu <baolu.lu@...ux.intel.com>
To:     Robin Murphy <robin.murphy@....com>, joro@...tes.org,
        will@...nel.org
Cc:     baolu.lu@...ux.intel.com, iommu@...ts.linux-foundation.org,
        iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] iommu: Clean up release_device checks

On 2022/6/21 23:14, Robin Murphy wrote:
> Since .release_device is now called through per-device ops, any call
> which gets as far as a driver definitely*is*  for that driver, for a
> device which has successfully passed .probe_device, so all the checks to
> that effect are now redundant and can be removed. In the same vein we
> can also skip freeing fwspecs which are now managed by core code.

Does this depend on any other series? I didn't see iommu_fwspec_free()
called in the core code. Or I missed anything?

> 
> Signed-off-by: Robin Murphy<robin.murphy@....com>
> ---
>   drivers/iommu/apple-dart.c                  |  3 ---
>   drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c |  8 +-------
>   drivers/iommu/arm/arm-smmu/arm-smmu.c       | 14 +++-----------
>   drivers/iommu/arm/arm-smmu/qcom_iommu.c     | 11 -----------
>   drivers/iommu/exynos-iommu.c                |  3 ---
>   drivers/iommu/mtk_iommu.c                   |  5 -----
>   drivers/iommu/mtk_iommu_v1.c                |  5 -----
>   drivers/iommu/sprd-iommu.c                  | 11 -----------
>   drivers/iommu/virtio-iommu.c                |  8 +-------
>   9 files changed, 5 insertions(+), 63 deletions(-)

Best regards,
baolu