r8169: remove mask argument from r8168dp_ocp_read

All callers read the full 32bit value, therefore the mask argument can
be removed.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/realtek/r8169_main.c

@@ -1078,9 +1078,9 @@ static void rtl_eri_clear_bits(struct rtl8169_private *tp, int addr, u32 m)
 	rtl_w0w1_eri(tp, addr, 0, m);
 }
 
-static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
+static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u16 reg)
 {
-	RTL_W32(tp, OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
+	RTL_W32(tp, OCPAR, 0x0fu << 12 | (reg & 0x0fff));
 	return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
 		RTL_R32(tp, OCPDR) : ~0;
 }
@@ -1127,7 +1127,7 @@ DECLARE_RTL_COND(rtl_dp_ocp_read_cond)
 
 	reg = rtl8168_get_ocp_reg(tp);
 
-	return r8168dp_ocp_read(tp, 0x0f, reg) & 0x00000800;
+	return r8168dp_ocp_read(tp, reg) & 0x00000800;
 }
 
 DECLARE_RTL_COND(rtl_ep_ocp_read_cond)
@@ -1215,7 +1215,7 @@ static bool r8168dp_check_dash(struct rtl8169_private *tp)
 {
 	u16 reg = rtl8168_get_ocp_reg(tp);
 
-	return !!(r8168dp_ocp_read(tp, 0x0f, reg) & 0x00008000);
+	return !!(r8168dp_ocp_read(tp, reg) & 0x00008000);
 }
 
 static bool r8168ep_check_dash(struct rtl8169_private *tp)