APPLIED[D]: [SRU][Cosmic][Disco][PATCH 0/1] s390/zcrypt: reinit ap queue state machine during device probe

[Seth Forshee]

On Fri, Dec 14, 2018 at 11:32:05AM -0500, Joseph Salisbury wrote:
> BugLink: https://bugs.launchpad.net/bugs/1805414
> 
> == SRU Justification ==
> The vfio device driver when receiving an ap queue device does
>               additional resets thereby removing the registration for
>               interrupts for the ap device done by the ap bus core
>               code. So when later the vfio driver releases the device and
>               one of the default zcrypt drivers takes care of the device
>               the interrupt registration needs to get renewed. The current
>               code does no renew and result is that requests send into such
>               a queue will never see a reply processed - the application
>               hangs.
> 
> This commit has also been cc'd to upstream stable.
> 
> == Fix ==
> 104f708fd ("s390/zcrypt: reinit ap queue state machine during device probe")
> 
> == Regression Potential ==
> Low.  Limited to s390.
> 
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.

Applied to disco/master-next, thanks!