Re: [PATCH RFC] virtio: wrap config->reset calls

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On 13.10.21 14:17, Michael S. Tsirkin wrote:
> On Wed, Oct 13, 2021 at 01:03:46PM +0200, David Hildenbrand wrote:
>> On 13.10.21 12:55, Michael S. Tsirkin wrote:
>>> This will enable cleanups down the road.
>>> The idea is to disable cbs, then add "flush_queued_cbs" callback
>>> as a parameter, this way drivers can flush any work
>>> queued after callbacks have been disabled.
>>>
>>> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
>>> ---
>>>   arch/um/drivers/virt-pci.c                 | 2 +-
>>>   drivers/block/virtio_blk.c                 | 4 ++--
>>>   drivers/bluetooth/virtio_bt.c              | 2 +-
>>>   drivers/char/hw_random/virtio-rng.c        | 2 +-
>>>   drivers/char/virtio_console.c              | 4 ++--
>>>   drivers/crypto/virtio/virtio_crypto_core.c | 8 ++++----
>>>   drivers/firmware/arm_scmi/virtio.c         | 2 +-
>>>   drivers/gpio/gpio-virtio.c                 | 2 +-
>>>   drivers/gpu/drm/virtio/virtgpu_kms.c       | 2 +-
>>>   drivers/i2c/busses/i2c-virtio.c            | 2 +-
>>>   drivers/iommu/virtio-iommu.c               | 2 +-
>>>   drivers/net/caif/caif_virtio.c             | 2 +-
>>>   drivers/net/virtio_net.c                   | 4 ++--
>>>   drivers/net/wireless/mac80211_hwsim.c      | 2 +-
>>>   drivers/nvdimm/virtio_pmem.c               | 2 +-
>>>   drivers/rpmsg/virtio_rpmsg_bus.c           | 2 +-
>>>   drivers/scsi/virtio_scsi.c                 | 2 +-
>>>   drivers/virtio/virtio.c                    | 5 +++++
>>>   drivers/virtio/virtio_balloon.c            | 2 +-
>>>   drivers/virtio/virtio_input.c              | 2 +-
>>>   drivers/virtio/virtio_mem.c                | 2 +-
>>>   fs/fuse/virtio_fs.c                        | 4 ++--
>>>   include/linux/virtio.h                     | 1 +
>>>   net/9p/trans_virtio.c                      | 2 +-
>>>   net/vmw_vsock/virtio_transport.c           | 4 ++--
>>>   sound/virtio/virtio_card.c                 | 4 ++--
>>>   26 files changed, 39 insertions(+), 33 deletions(-)
>>>
>>> diff --git a/arch/um/drivers/virt-pci.c b/arch/um/drivers/virt-pci.c
>>> index c08066633023..22c4d87c9c15 100644
>>> --- a/arch/um/drivers/virt-pci.c
>>> +++ b/arch/um/drivers/virt-pci.c
>>> @@ -616,7 +616,7 @@ static void um_pci_virtio_remove(struct virtio_device *vdev)
>>>   	int i;
>>>           /* Stop all virtqueues */
>>> -        vdev->config->reset(vdev);
>>> +        virtio_reset_device(vdev);
>>>           vdev->config->del_vqs(vdev);
>>
>> Nit: virtio_device_reset()?
>>
>> Because I see:
>>
>> int virtio_device_freeze(struct virtio_device *dev);
>> int virtio_device_restore(struct virtio_device *dev);
>> void virtio_device_ready(struct virtio_device *dev)
>>
>> But well, there is:
>> void virtio_break_device(struct virtio_device *dev);
> 
> Exactly. I don't know what's best, so I opted for plain english :)

Fair enough, LGTM

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>


-- 
Thanks,

David / dhildenb




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