RE: [RESEND PATCH V3 for-next 0/3] HW Device hot-removal support

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> Currently, if there is any user space application using an IB device,
> it is impossible to unload the HW device driver for this device.
> 
> Similarly, if the device is hot-unplugged or reset, the device driver
> hardware removal flow blocks until all user contexts are destroyed.
> 
> This patchset removes the above limitations from both uverbs and ucma.

Please look at ib_user_mad and how it handles device removal with active clients.  We should be able to follow the same model that doesn't require driving changes down into every driver.

- Sean
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