r8169: disable detection of bogus xid's 308/388

Several years ago these two entries have been added, but it's not clear
why. There's no trace that there has ever been such a chip version, and
not even the r8101 vendor driver knows these id's. So let's disable
detection, and if nobody complains remove them completely later.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/realtek/r8169_main.c

@@ -2036,9 +2036,12 @@ static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
 		{ 0x7c8, 0x348,	RTL_GIGA_MAC_VER_09 },
 		{ 0x7c8, 0x248,	RTL_GIGA_MAC_VER_09 },
 		{ 0x7c8, 0x340,	RTL_GIGA_MAC_VER_16 },
-		/* FIXME: where did these entries come from ? -- FR */
-		{ 0xfc8, 0x388,	RTL_GIGA_MAC_VER_13 },
-		{ 0xfc8, 0x308,	RTL_GIGA_MAC_VER_13 },
+		/* FIXME: where did these entries come from ? -- FR
+		 * Not even r8101 vendor driver knows these id's,
+		 * so let's disable detection for now. -- HK
+		 * { 0xfc8, 0x388,	RTL_GIGA_MAC_VER_13 },
+		 * { 0xfc8, 0x308,	RTL_GIGA_MAC_VER_13 },
+		 */
 
 		/* 8110 family. */
 		{ 0xfc8, 0x980,	RTL_GIGA_MAC_VER_06 },