[media] mceusb: Optimize DIV_ROUND_CLOSEST call

DIV_ROUND_CLOSEST is faster if the compiler knows it will only be
dealing with unsigned dividends.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index a5c6c1c..850547f 100644 (file)
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -627,7 +627,7 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
                        break;
                case MCE_RSP_EQIRCFS:
                        period = DIV_ROUND_CLOSEST(
-                                       (1 << data1 * 2) * (data2 + 1), 10);
+                                       (1U << data1 * 2) * (data2 + 1), 10);
                        if (!period)
                                break;
                        carrier = (1000 * 1000) / period;