net: fec: simplify loop counter handling in swap_buffer()

Eliminate the DIV_ROUND_UP() and change the loop counter increment to
4 instead. This results in saving 6 instructions in the functions
assembly code.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index f73fee7..dbccdf3 100644 (file)
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -292,7 +292,7 @@ static void *swap_buffer(void *bufaddr, int len)
        int i;
        unsigned int *buf = bufaddr;
 
-       for (i = 0; i < DIV_ROUND_UP(len, 4); i++, buf++)
+       for (i = 0; i < len; i += 4, buf++)
                swab32s(buf);
 
        return bufaddr;