Re: [PATCH v6 02/11] driver core: Add dma_cleanup callback in bus_type

Subject: Re: [PATCH v6 02/11] driver core: Add dma_cleanup callback in bus_type
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Fri, 18 Feb 2022 23:32:34 -0800
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Alex Williamson <alex.williamson@xxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Kevin Tian <kevin.tian@xxxxxxxxx>, Ashok Raj <ashok.raj@xxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, rafael@xxxxxxxxxx, David Airlie <airlied@xxxxxxxx>, linux-pci@xxxxxxxxxxxxxxx, Thierry Reding <thierry.reding@xxxxxxxxx>, Diana Craciun <diana.craciun@xxxxxxxxxxx>, Dmitry Osipenko <digetx@xxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Stuart Yoder <stuyoder@xxxxxxxxx>, Jonathan Hunter <jonathanh@xxxxxxxxxx>, Chaitanya Kulkarni <kch@xxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Cornelia Huck <cohuck@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Li Yang <leoyang.li@xxxxxxx>, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, Jacob jun Pan <jacob.jun.pan@xxxxxxxxx>, Daniel Vetter <daniel@xxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>
In-reply-to: <20220218005521.172832-3-baolu.lu@linux.intel.com>
References: <20220218005521.172832-1-baolu.lu@linux.intel.com> <20220218005521.172832-3-baolu.lu@linux.intel.com>

So we are back to the callback madness instead of the nice and simple
flag?  Sigh.

Follow-Ups:
- Re: [PATCH v6 02/11] driver core: Add dma_cleanup callback in bus_type
  - From: Robin Murphy

References:
- [PATCH v6 00/11] Fix BUG_ON in vfio_iommu_group_notifier()
  - From: Lu Baolu
- [PATCH v6 02/11] driver core: Add dma_cleanup callback in bus_type
  - From: Lu Baolu