From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Sat, 30 Aug 2025 11:04:20 +0000 (+0200)
Subject: usb: ucsi: stm32: Use min() to improve ucsi_stm32g0_fw_cb()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=91709d2ce5cdf568b42fcc33473929843ed95cd3;p=users%2Fhch%2Fmisc.git

usb: ucsi: stm32: Use min() to improve ucsi_stm32g0_fw_cb()

Use min() to improve ucsi_stm32g0_fw_cb() and avoid calculating
'end - data' twice.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250830110426.10007-2-thorsten.blum@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/typec/ucsi/ucsi_stm32g0.c b/drivers/usb/typec/ucsi/ucsi_stm32g0.c
index 57ef7d83a412..838ac0185082 100644
--- a/drivers/usb/typec/ucsi/ucsi_stm32g0.c
+++ b/drivers/usb/typec/ucsi/ucsi_stm32g0.c
@@ -10,6 +10,7 @@
 #include <linux/firmware.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
+#include <linux/minmax.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/unaligned.h>
@@ -523,11 +524,7 @@ static void ucsi_stm32g0_fw_cb(const struct firmware *fw, void *context)
 	data = fw->data;
 	end = fw->data + fw->size;
 	while (data < end) {
-		if ((end - data) < STM32G0_I2C_BL_SZ)
-			size = end - data;
-		else
-			size = STM32G0_I2C_BL_SZ;
-
+		size = min(end - data, STM32G0_I2C_BL_SZ);
 		ret = ucsi_stm32g0_bl_write(g0->ucsi, addr, data, size);
 		if (ret) {
 			dev_err(g0->dev, "Write failed %d\n", ret);