staging: vt6655: Convert macro vt6655_mac_write_bssid_addr to function

Convert macro vt6655_mac_write_bssid_addr to static function.
checkpatch.pl does not accept multiline macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/caecf7287d92c5d25ba0dfc16a24a6ce4aa67d55.1656835310.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/device_main.c

@@ -122,6 +122,8 @@ static int  vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent);
 static void device_free_info(struct vnt_private *priv);
 static void device_print_info(struct vnt_private *priv);
 
+static void vt6655_mac_write_bssid_addr(void __iomem *iobase, const u8 *mac_addr);
+
 static int device_init_rd0_ring(struct vnt_private *priv);
 static int device_init_rd1_ring(struct vnt_private *priv);
 static int device_init_td0_ring(struct vnt_private *priv);
@@ -186,17 +188,17 @@ device_set_options(struct vnt_private *priv)
 	pr_debug(" byBBType= %d\n", (int)priv->byBBType);
 }
 
-#define vt6655_mac_write_bssid_addr(iobase, mac_addr)		\
-do {								\
-	iowrite8(1, iobase + MAC_REG_PAGE1SEL);			\
-	iowrite8(mac_addr[0], iobase + MAC_REG_BSSID0);		\
-	iowrite8(mac_addr[1], iobase + MAC_REG_BSSID0 + 1);	\
-	iowrite8(mac_addr[2], iobase + MAC_REG_BSSID0 + 2);	\
-	iowrite8(mac_addr[3], iobase + MAC_REG_BSSID0 + 3);	\
-	iowrite8(mac_addr[4], iobase + MAC_REG_BSSID0 + 4);	\
-	iowrite8(mac_addr[5], iobase + MAC_REG_BSSID0 + 5);	\
-	iowrite8(0, iobase + MAC_REG_PAGE1SEL);			\
-} while (0)
+static void vt6655_mac_write_bssid_addr(void __iomem *iobase, const u8 *mac_addr)
+{
+	iowrite8(1, iobase + MAC_REG_PAGE1SEL);
+	iowrite8(mac_addr[0], iobase + MAC_REG_BSSID0);
+	iowrite8(mac_addr[1], iobase + MAC_REG_BSSID0 + 1);
+	iowrite8(mac_addr[2], iobase + MAC_REG_BSSID0 + 2);
+	iowrite8(mac_addr[3], iobase + MAC_REG_BSSID0 + 3);
+	iowrite8(mac_addr[4], iobase + MAC_REG_BSSID0 + 4);
+	iowrite8(mac_addr[5], iobase + MAC_REG_BSSID0 + 5);
+	iowrite8(0, iobase + MAC_REG_PAGE1SEL);
+}
 
 #define vt6655_mac_read_ether_addr(iobase, mac_addr)		\
 do {								\