libata: move ata_pci_default_filter() out of CONFIG_PCI

ata_pci_default_filter() doesn't really have anything to do with PCI.
It's generally applicable to BMDMA controllers.  Move it out of
CONFIG_PCI.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/libata-sff.c

@@ -2117,6 +2117,16 @@ void ata_std_ports(struct ata_ioports *ioaddr)
 	ioaddr->command_addr = ioaddr->cmd_addr + ATA_REG_CMD;
 }
 
+unsigned long ata_pci_default_filter(struct ata_device *adev, unsigned long xfer_mask)
+{
+	/* Filter out DMA modes if the device has been configured by
+	   the BIOS as PIO only */
+
+	if (adev->link->ap->ioaddr.bmdma_addr == NULL)
+		xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
+	return xfer_mask;
+}
+
 /**
  *	ata_bmdma_setup - Set up PCI IDE BMDMA transaction
  *	@qc: Info associated with this ATA transaction.
@@ -2335,16 +2345,6 @@ int ata_pci_clear_simplex(struct pci_dev *pdev)
 	return 0;
 }
 
-unsigned long ata_pci_default_filter(struct ata_device *adev, unsigned long xfer_mask)
-{
-	/* Filter out DMA modes if the device has been configured by
-	   the BIOS as PIO only */
-
-	if (adev->link->ap->ioaddr.bmdma_addr == NULL)
-		xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
-	return xfer_mask;
-}
-
 /**
  *	ata_pci_init_bmdma - acquire PCI BMDMA resources and init ATA host
  *	@host: target ATA host
@@ -2725,6 +2725,7 @@ EXPORT_SYMBOL_GPL(ata_sff_port_ops);
 EXPORT_SYMBOL_GPL(ata_bmdma_port_ops);
 EXPORT_SYMBOL_GPL(ata_qc_prep);
 EXPORT_SYMBOL_GPL(ata_dumb_qc_prep);
+EXPORT_SYMBOL_GPL(ata_pci_default_filter);
 EXPORT_SYMBOL_GPL(ata_std_dev_select);
 EXPORT_SYMBOL_GPL(ata_check_status);
 EXPORT_SYMBOL_GPL(ata_altstatus);
@@ -2760,7 +2761,6 @@ EXPORT_SYMBOL_GPL(ata_bmdma_status);
 EXPORT_SYMBOL_GPL(ata_bus_reset);
 #ifdef CONFIG_PCI
 EXPORT_SYMBOL_GPL(ata_pci_clear_simplex);
-EXPORT_SYMBOL_GPL(ata_pci_default_filter);
 EXPORT_SYMBOL_GPL(ata_pci_init_bmdma);
 EXPORT_SYMBOL_GPL(ata_pci_init_sff_host);
 EXPORT_SYMBOL_GPL(ata_pci_prepare_sff_host);

include/linux/libata.h

@@ -1378,6 +1378,8 @@ extern void ata_bmdma_error_handler(struct ata_port *ap);
 extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc);
 extern int ata_sff_port_start(struct ata_port *ap);
 extern void ata_std_ports(struct ata_ioports *ioaddr);
+extern unsigned long ata_pci_default_filter(struct ata_device *dev,
+					    unsigned long xfer_mask);
 extern void ata_bmdma_setup(struct ata_queued_cmd *qc);
 extern void ata_bmdma_start(struct ata_queued_cmd *qc);
 extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
@@ -1386,8 +1388,6 @@ extern void ata_bus_reset(struct ata_port *ap);
 
 #ifdef CONFIG_PCI
 extern int ata_pci_clear_simplex(struct pci_dev *pdev);
-extern unsigned long ata_pci_default_filter(struct ata_device *dev,
-					    unsigned long xfer_mask);
 extern int ata_pci_init_bmdma(struct ata_host *host);
 extern int ata_pci_init_sff_host(struct ata_host *host);
 extern int ata_pci_prepare_sff_host(struct pci_dev *pdev,