serial: Use ARRAY_SIZE instead of reinventing it

Signed-off-by: Axel Lin <axel.lin@ingics.com>

diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c
index daa80038a71ddc507fa594a95c575e6823393764..a19cec5ace7cb8cb16907d253b0270b9862e5147 100644 (file)
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -37,7 +37,6 @@ static struct serial_device *serial_current;
  * Table with supported baudrates (defined in config_xyz.h)
  */
 static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
-#define        N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
 
 /**
  * serial_null() - Void registration routine of a serial driver
@@ -74,11 +73,11 @@ static int on_baudrate(const char *name, const char *value, enum env_op op,
                if (gd->baudrate == baudrate)
                        return 0;
 
-               for (i = 0; i < N_BAUDRATES; ++i) {
+               for (i = 0; i < ARRAY_SIZE(baudrate_table); ++i) {
                        if (baudrate == baudrate_table[i])
                                break;
                }
-               if (i == N_BAUDRATES) {
+               if (i == ARRAY_SIZE(baudrate_table)) {
                        if ((flags & H_FORCE) == 0)
                                printf("## Baudrate %d bps not supported\n",
                                        baudrate);