[PATCHv4-4.5 6/7] NVMe: Don't allow unsupported flags

[Johannes Thumshirn]

On Wed, Feb 24, 2016 at 09:15:57AM -0700, Keith Busch wrote:
> The command flags can change the meaning of other fields in the command
> that the driver is not prepared to handle. Specifically, the user could
> passthrough an SGL flag, causing the controller to misinterpret the PRP
> list the driver created, potentially corrupting memory or data.
> 
> Signed-off-by: Keith Busch <keith.busch at intel.com>
> Reviewed-by: Jon Derrick <jonathan.derrick at intel.com>

Reviewed-by: Johannes Thumshirn <jthumshirn at suse.de>

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Johannes Thumshirn                                          Storage
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