r8169: remove unnecessary cast of readl()'s return value

readl() returns a 32-bit integer on all platforms.
There is no need to cast its return value.

Signed-off-by: Junchang Wang <junchangwang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 217e709..ca93cdf 100644 (file)
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -88,7 +88,7 @@ static const int multicast_filter_limit = 32;
 #define RTL_W32(reg, val32)    writel ((val32), ioaddr + (reg))
 #define RTL_R8(reg)            readb (ioaddr + (reg))
 #define RTL_R16(reg)           readw (ioaddr + (reg))
-#define RTL_R32(reg)           ((unsigned long) readl (ioaddr + (reg)))
+#define RTL_R32(reg)           readl (ioaddr + (reg))
 
 enum mac_version {
        RTL_GIGA_MAC_NONE   = 0x00,