usb: early: xhci-dbc: Make use of cpu_to_le16_array()

Since we have a new helper, let's replace open coded variant by it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/usb/early/xhci-dbc.c

@@ -9,6 +9,7 @@
 
 #define pr_fmt(fmt)	KBUILD_MODNAME ":%s: " fmt, __func__
 
+#include <linux/byteorder/generic.h>
 #include <linux/console.h>
 #include <linux/pci_regs.h>
 #include <linux/pci_ids.h>
@@ -200,14 +201,6 @@ static void xdbc_reset_ring(struct xdbc_ring *ring)
 	}
 }
 
-static inline void xdbc_put_utf16(u16 *s, const char *c, size_t size)
-{
-	int i;
-
-	for (i = 0; i < size; i++)
-		s[i] = cpu_to_le16(c[i]);
-}
-
 static void xdbc_mem_init(void)
 {
 	struct xdbc_ep_context *ep_in, *ep_out;
@@ -263,7 +256,7 @@ static void xdbc_mem_init(void)
 	s_desc->bLength		= (strlen(XDBC_STRING_SERIAL) + 1) * 2;
 	s_desc->bDescriptorType	= USB_DT_STRING;
 
-	xdbc_put_utf16(s_desc->wData, XDBC_STRING_SERIAL, strlen(XDBC_STRING_SERIAL));
+	cpu_to_le16_array(s_desc->wData, XDBC_STRING_SERIAL, strlen(XDBC_STRING_SERIAL));
 	string_length = s_desc->bLength;
 	string_length <<= 8;
 
@@ -272,7 +265,7 @@ static void xdbc_mem_init(void)
 	s_desc->bLength		= (strlen(XDBC_STRING_PRODUCT) + 1) * 2;
 	s_desc->bDescriptorType	= USB_DT_STRING;
 
-	xdbc_put_utf16(s_desc->wData, XDBC_STRING_PRODUCT, strlen(XDBC_STRING_PRODUCT));
+	cpu_to_le16_array(s_desc->wData, XDBC_STRING_PRODUCT, strlen(XDBC_STRING_PRODUCT));
 	string_length += s_desc->bLength;
 	string_length <<= 8;
 
@@ -281,7 +274,7 @@ static void xdbc_mem_init(void)
 	s_desc->bLength		= (strlen(XDBC_STRING_MANUFACTURER) + 1) * 2;
 	s_desc->bDescriptorType	= USB_DT_STRING;
 
-	xdbc_put_utf16(s_desc->wData, XDBC_STRING_MANUFACTURER, strlen(XDBC_STRING_MANUFACTURER));
+	cpu_to_le16_array(s_desc->wData, XDBC_STRING_MANUFACTURER, strlen(XDBC_STRING_MANUFACTURER));
 	string_length += s_desc->bLength;
 	string_length <<= 8;