[PATCH] usb: musb: cppi_dma.c: use DIV_ROUND_UP macro in cppi_next_(r|t)x_segment()

[Ivan Safonov]

DIV_ROUND_UP is bit useful than series of "/" and "%" operations.
Replace "/%" sequence with DIV_ROUND_UP macro.

Signed-off-by: Ivan Safonov <insafo...@gmail.com>
---
 drivers/usb/musb/cppi_dma.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 1ae48e6..d376188 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -582,9 +582,9 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel 
*tx)
                maxpacket = length;
                n_bds = 1;
        } else {
-               n_bds = length / maxpacket;
-               if (!length || (length % maxpacket))
-                       n_bds++;
+               n_bds = DIV_ROUND_UP(length, maxpacket);
+               if (length == 0)
+                       n_bds = 1;
                n_bds = min(n_bds, (unsigned) NUM_TXCHAN_BD);
                length = min(n_bds * maxpacket, length);
        }
@@ -790,9 +790,7 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel 
*rx, int onepacket)
                        n_bds = 0xffff / maxpacket;
                        length = n_bds * maxpacket;
                } else {
-                       n_bds = length / maxpacket;
-                       if (length % maxpacket)
-                               n_bds++;
+                       n_bds = DIV_ROUND_UP(length, maxpacket);
                }
                if (n_bds == 1)
                        onepacket = 1;
-- 
2.10.2

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