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If a ccw has CCW_FLAG_SKIP set, and the command is of type read, read backwards, or sense, no data should be written to the guest for that command. Reviewed-by: Eric Farman <farman@linux.ibm.com> Message-Id: <20190516133327.11430-1-cohuck@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>