i2c-piix4: Drop redundant PCI function number check

Checking the PCI function number doesn't add any value, and it makes
adding dynamic IDs to the driver more difficult. Drop this check.
Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/i2c/busses/i2c-piix4.c

@@ -121,10 +121,6 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
 {
 	unsigned char temp;
 
-	/* match up the function */
-	if (PCI_FUNC(PIIX4_dev->devfn) != id->driver_data)
-		return -ENODEV;
-
 	dev_info(&PIIX4_dev->dev, "Found %s device\n", pci_name(PIIX4_dev));
 
 	/* Don't access SMBus on IBM systems which get corrupted eeproms */
@@ -389,28 +385,21 @@ static struct i2c_adapter piix4_adapter = {
 };
 
 static struct pci_device_id piix4_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3),
-	  .driver_data = 3 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_SMBUS),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_SMBUS),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB),
-	  .driver_data = 0 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3),
-	  .driver_data = 3 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3),
-	  .driver_data = 0 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+		     PCI_DEVICE_ID_SERVERWORKS_OSB4) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+		     PCI_DEVICE_ID_SERVERWORKS_CSB5) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+		     PCI_DEVICE_ID_SERVERWORKS_CSB6) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+		     PCI_DEVICE_ID_SERVERWORKS_HT1000SB) },
 	{ 0, }
 };