[SCSI] esp_scsi: Use DIV_ROUND_UP

Use the macro DIV_ROUND_UP and eliminate the variable rounded_up, as
suggested by Matthew Wilcox.

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: David Miller <davem@davemloft.net>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index 62a4618..a680e18 100644 (file)
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -1453,7 +1453,7 @@ static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp)
                offset = 0;
 
        if (offset) {
-               int rounded_up, one_clock;
+               int one_clock;
 
                if (period > esp->max_period) {
                        period = offset = 0;
@@ -1463,9 +1463,7 @@ static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp)
                        goto do_reject;
 
                one_clock = esp->ccycle / 1000;
-               rounded_up = (period << 2);
-               rounded_up = (rounded_up + one_clock - 1) / one_clock;
-               stp = rounded_up;
+               stp = DIV_ROUND_UP(period << 2, one_clock);
                if (stp && esp->rev >= FAS236) {
                        if (stp >= 50)
                                stp--;