Re: [PATCH v3 12/18] iommu: Add iommu_at[de]tach_device_shared() for... | linux-pci

[PATCH v3 00/18] Fix BUG_ON in vfio_iommu_group_notifier() · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
Re: [PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Joerg Roedel <joro@8bytes.org> · 2021-12-06
Re: [PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Christoph Hellwig <hch@infradead.org> · 2021-12-06
Re: [PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-06
Re: [PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-07
Re: [PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Christoph Hellwig <hch@infradead.org> · 2021-12-06
Re: [PATCH v3 01/18] iommu: Add device dma ownership set/release interfaces · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-07
[PATCH v3 02/18] driver core: Add dma_cleanup callback in bus_type · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 2021-12-06
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Christoph Hellwig <hch@infradead.org> · 2021-12-06
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-06
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-07
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-07
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Christoph Hellwig <hch@infradead.org> · 2021-12-07
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-07
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-09
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-10
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-13
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-13
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-15
Re: [PATCH v3 04/18] driver core: platform: Add driver dma ownership management · Christoph Hellwig <hch@infradead.org> · 2021-12-14
[PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Christoph Hellwig <hch@infradead.org> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Christoph Hellwig <hch@infradead.org> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-06
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-07
Re: [PATCH v3 03/18] driver core: platform: Rename platform_dma_configure() · Dan Williams <hidden> · 2021-12-07
[PATCH v3 05/18] amba: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 06/18] bus: fsl-mc: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 07/18] PCI: Add driver dma ownership management · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 08/18] PCI: pci_stub: Suppress kernel DMA ownership auto-claiming · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 09/18] PCI: portdrv: Suppress kernel DMA ownership auto-claiming · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 10/18] iommu: Add security context management for assigned devices · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 12/18] iommu: Add iommu_at[de]tach_device_shared() for multi-device groups · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
Re: [PATCH v3 12/18] iommu: Add iommu_at[de]tach_device_shared() for multi-device groups · Christoph Hellwig <hch@infradead.org> · 2021-12-06
Re: [PATCH v3 12/18] iommu: Add iommu_at[de]tach_device_shared() for multi-device groups · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-07
[PATCH v3 11/18] iommu: Expose group variants of dma ownership interfaces · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 14/18] vfio: Remove use of vfio_group_viable() · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 13/18] vfio: Set DMA USER ownership for VFIO devices · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 15/18] vfio: Delete the unbound_list · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 17/18] iommu: Remove iommu group changes notifier · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
[PATCH v3 18/18] drm/tegra: Use the iommu dma_owner mechanism · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
Re: [PATCH v3 18/18] drm/tegra: Use the iommu dma_owner mechanism · Jason Gunthorpe <jgg@nvidia.com> · 2021-12-06
Re: [PATCH v3 18/18] drm/tegra: Use the iommu dma_owner mechanism · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-07
[PATCH v3 16/18] vfio: Remove iommu group notifier · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-06
Re: [PATCH v3 00/18] Fix BUG_ON in vfio_iommu_group_notifier() · Lu Baolu <baolu.lu@linux.intel.com> · 2021-12-17

Re: [PATCH v3 12/18] iommu: Add iommu_at[de]tach_device_shared() for multi-device groups

From: Christoph Hellwig <hch@infradead.org>
Date: 2021-12-06 14:44:16
Also in: kvm, linux-iommu, lkml

The new helpers really could use a kerneldoc comment.
Also no need for the refcount_t with it's atomic operations for
attach_cnt either.

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