From: <hp...@vmware.com>
Date: Mon, 14 May 2018 08:14:49 -0400

> The gen bits must be read first from (resp. written last to) DMA memory.
> The proper way to enforce this on Linux is to call dma_rmb() (resp.
> dma_wmb()).
> 
> Signed-off-by: Regis Duchesne <hp...@vmware.com>
> Acked-by: Ronak Doshi <dos...@vmware.com>

Applied and queued up for -stable.

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