staging: vt6655: Convert macro MACvReceive0 to function

Convert macro to static function. Multiline macros are not liked by
kernel community. Rename variable dwData to reg_value to avoid
CamelCase which is not accepted by checkpatch.pl. Change variable
declaration to u32 as this improves readability.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/059aca149bd0c1d75df4fb3cd8a177aa4948fb02.1659080988.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/device_main.c

@@ -205,6 +205,17 @@ static void vt6655_mac_read_ether_addr(void __iomem *iobase, u8 *mac_addr)
 	iowrite8(0, iobase + MAC_REG_PAGE1SEL);
 }
 
+static void MACvReceive0(void __iomem *iobase)
+{
+	u32 reg_value;
+
+	reg_value = ioread32(iobase + MAC_REG_RXDMACTL0);
+	if (reg_value & DMACTL_RUN)
+		iowrite32(DMACTL_WAKE, iobase + MAC_REG_RXDMACTL0);
+	else
+		iowrite32(DMACTL_RUN, iobase + MAC_REG_RXDMACTL0);
+}
+
 /*
  * Initialisation of MAC & BBP registers
  */

drivers/staging/vt6655/mac.h

@@ -537,16 +537,6 @@
 
 /*---------------------  Export Macros ------------------------------*/
 
-#define MACvReceive0(iobase)						\
-do {									\
-	unsigned long dwData;						\
-	dwData = ioread32(iobase + MAC_REG_RXDMACTL0);			\
-	if (dwData & DMACTL_RUN)					\
-		iowrite32(DMACTL_WAKE, iobase + MAC_REG_RXDMACTL0);	\
-	else								\
-		iowrite32(DMACTL_RUN, iobase + MAC_REG_RXDMACTL0);	\
-} while (0)
-
 #define MACvReceive1(iobase)						\
 do {									\
 	unsigned long dwData;						\