Repeating the same computation in multiple places is not
necessary.
Signed-off-by: NEdmund Nadolski <enadolski@suse.com>
Signed-off-by: NJeff Mahoney <jeffm@suse.com>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>