serial/pch: use global div helper instead of creating a private one
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index f2cb750..ae28250 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -14,6 +14,7 @@
*along with this program; if not, write to the Free Software
*Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <linux/kernel.h>
#include <linux/serial_reg.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -137,8 +138,6 @@
#define PCH_UART_DLL 0x00
#define PCH_UART_DLM 0x01
-#define DIV_ROUND(a, b) (((a) + ((b)/2)) / (b))
-
#define PCH_UART_IID_RLS (PCH_UART_IIR_REI)
#define PCH_UART_IID_RDR (PCH_UART_IIR_RRI)
#define PCH_UART_IID_RDR_TO (PCH_UART_IIR_RRI | PCH_UART_IIR_TOI)
@@ -316,7 +315,7 @@
unsigned int dll, dlm, lcr;
int div;
- div = DIV_ROUND(priv->base_baud / 16, baud);
+ div = DIV_ROUND_CLOSEST(priv->base_baud / 16, baud);
if (div < 0 || USHRT_MAX <= div) {
dev_err(priv->port.dev, "Invalid Baud(div=0x%x)\n", div);
return -EINVAL;