4 files changed, 4 insertions, 4 deletions

diff --git a/sys/dev/usb/serial/u3g.c b/sys/dev/usb/serial/u3g.c
index ab6b20a350ca..9988347243c4 100644
--- a/sys/dev/usb/serial/u3g.c
+++ b/sys/dev/usb/serial/u3g.c
@@ -670,7 +670,7 @@ u3g_sael_m460_init(struct usb_device *udev)
 		return;
 	}
 
-	for (n = 0; n != (sizeof(setup)/sizeof(setup[0])); n++) {
+	for (n = 0; n != nitems(setup); n++) {
 
 		memcpy(&req, setup[n], sizeof(req));
 
diff --git a/sys/dev/usb/serial/uchcom.c b/sys/dev/usb/serial/uchcom.c
index 70f1979355b3..d1063fd4f634 100644
--- a/sys/dev/usb/serial/uchcom.c
+++ b/sys/dev/usb/serial/uchcom.c
@@ -195,7 +195,7 @@ static const struct uchcom_divider_record dividers[] =
 	{367, 1, 11719, {0, 0, 0}},
 };
 
-#define	NUM_DIVIDERS	(sizeof (dividers) / sizeof (dividers[0]))
+#define	NUM_DIVIDERS	nitems(dividers)
 
 static const STRUCT_USB_HOST_ID uchcom_devs[] = {
 	{USB_VPI(USB_VENDOR_WCH, USB_PRODUCT_WCH_CH341SER, 0)},
diff --git a/sys/dev/usb/serial/umcs.c b/sys/dev/usb/serial/umcs.c
index b48d5e57b036..6b55b5a8450b 100644
--- a/sys/dev/usb/serial/umcs.c
+++ b/sys/dev/usb/serial/umcs.c
@@ -1072,7 +1072,7 @@ umcs7840_set_baudrate(struct umcs7840_softc *sc, uint8_t portno, uint32_t rate)
 
 /* Maximum speeds for standard frequences, when PLL is not used */
 static const uint32_t umcs7840_baudrate_divisors[] = {0, 115200, 230400, 403200, 460800, 806400, 921600, 1572864, 3145728,};
-static const uint8_t umcs7840_baudrate_divisors_len = sizeof(umcs7840_baudrate_divisors) / sizeof(umcs7840_baudrate_divisors[0]);
+static const uint8_t umcs7840_baudrate_divisors_len = nitems(umcs7840_baudrate_divisors);
 
 static usb_error_t
 umcs7840_calc_baudrate(uint32_t rate, uint16_t *divisor, uint8_t *clk)
diff --git a/sys/dev/usb/serial/uplcom.c b/sys/dev/usb/serial/uplcom.c
index af0166e16e38..6e238758fa26 100644
--- a/sys/dev/usb/serial/uplcom.c
+++ b/sys/dev/usb/serial/uplcom.c
@@ -642,7 +642,7 @@ static const uint32_t uplcom_rates[] = {
 	230400, 460800, 614400, 921600, 1228800
 };
 
-#define	N_UPLCOM_RATES	(sizeof(uplcom_rates)/sizeof(uplcom_rates[0]))
+#define	N_UPLCOM_RATES	nitems(uplcom_rates)
 
 static int
 uplcom_pre_param(struct ucom_softc *ucom, struct termios *t)