[SCSI] qla2xxx: Use pci_disable_rom() to manipulate PCI config space.

http://bugzilla.kernel.org/show_bug.cgi?id=9422

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/qla2xxx/qla_init.c

@@ -140,7 +140,6 @@ int
 qla2100_pci_config(scsi_qla_host_t *ha)
 {
 	uint16_t w;
-	uint32_t d;
 	unsigned long flags;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
@@ -151,10 +150,7 @@ qla2100_pci_config(scsi_qla_host_t *ha)
 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 
-	/* Reset expansion ROM address decode enable */
-	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
-	d &= ~PCI_ROM_ADDRESS_ENABLE;
-	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
+	pci_disable_rom(ha->pdev);
 
 	/* Get PCI bus information. */
 	spin_lock_irqsave(&ha->hardware_lock, flags);
@@ -174,7 +170,6 @@ int
 qla2300_pci_config(scsi_qla_host_t *ha)
 {
 	uint16_t	w;
-	uint32_t	d;
 	unsigned long   flags = 0;
 	uint32_t	cnt;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
@@ -236,10 +231,7 @@ qla2300_pci_config(scsi_qla_host_t *ha)
 
 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 
-	/* Reset expansion ROM address decode enable */
-	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
-	d &= ~PCI_ROM_ADDRESS_ENABLE;
-	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
+	pci_disable_rom(ha->pdev);
 
 	/* Get PCI bus information. */
 	spin_lock_irqsave(&ha->hardware_lock, flags);
@@ -259,7 +251,6 @@ int
 qla24xx_pci_config(scsi_qla_host_t *ha)
 {
 	uint16_t w;
-	uint32_t d;
 	unsigned long flags = 0;
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 
@@ -281,10 +272,7 @@ qla24xx_pci_config(scsi_qla_host_t *ha)
 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 		pcie_set_readrq(ha->pdev, 2048);
 
-	/* Reset expansion ROM address decode enable */
-	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
-	d &= ~PCI_ROM_ADDRESS_ENABLE;
-	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
+	pci_disable_rom(ha->pdev);
 
 	ha->chip_revision = ha->pdev->revision;
 
@@ -306,7 +294,6 @@ int
 qla25xx_pci_config(scsi_qla_host_t *ha)
 {
 	uint16_t w;
-	uint32_t d;
 
 	pci_set_master(ha->pdev);
 	pci_try_set_mwi(ha->pdev);
@@ -320,10 +307,7 @@ qla25xx_pci_config(scsi_qla_host_t *ha)
 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
 		pcie_set_readrq(ha->pdev, 2048);
 
-	/* Reset expansion ROM address decode enable */
-	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
-	d &= ~PCI_ROM_ADDRESS_ENABLE;
-	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
+	pci_disable_rom(ha->pdev);
 
 	ha->chip_revision = ha->pdev->revision;