PCI: Remove users of pci_enable_device_bars()

This patch converts users of pci_enable_device_bars() to the new
pci_enable_device_{io,mem} interface.

The new API fits nicely, except maybe for the QLA case where a bit of
code re-organization might be a good idea but I prefer sticking to the
simple patch as I don't have hardware to test on.

I'll also need some feedback on the cs5520 change.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 18 insertions, 4 deletions

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 6f129da3758..b72c7f17085 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2268,6 +2268,7 @@ typedef struct scsi_qla_host {
 	spinlock_t		hardware_lock ____cacheline_aligned;
 
 	int		bars;
+	int		mem_only;
 	device_reg_t __iomem *iobase;		/* Base I/O address */
 	resource_size_t pio_address;
 #define MIN_IOBASE_LEN		0x100
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 3954ed2d7b5..8f69caf8327 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1564,7 +1564,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	char pci_info[30];
 	char fw_str[30];
 	struct scsi_host_template *sht;
-	int bars;
+	int bars, mem_only = 0;
 
 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
 	sht = &qla2x00_driver_template;
@@ -1575,10 +1575,16 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
 		sht = &qla24xx_driver_template;
+		mem_only = 1;
 	}
 
-	if (pci_enable_device_bars(pdev, bars))
-		goto probe_out;
+	if (mem_only) {
+		if (pci_enable_device_mem(pdev))
+			goto probe_out;
+	} else {
+		if (pci_enable_device(pdev))
+			goto probe_out;
+	}
 
 	if (pci_find_aer_capability(pdev))
 		if (pci_enable_pcie_error_reporting(pdev))
@@ -1601,6 +1607,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
 	ha->parent = NULL;
 	ha->bars = bars;
+	ha->mem_only = mem_only;
 
 	/* Set ISP-type information. */
 	qla2x00_set_isp_flags(ha);
@@ -2875,8 +2882,14 @@ qla2xxx_pci_slot_reset(struct pci_dev *pdev)
 {
 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
 	scsi_qla_host_t *ha = pci_get_drvdata(pdev);
+	int rc;
+
+	if (ha->mem_only)
+		rc = pci_enable_device_mem(pdev);
+	else
+		rc = pci_enable_device(pdev);
 
-	if (pci_enable_device_bars(pdev, ha->bars)) {
+	if (rc) {
 		qla_printk(KERN_WARNING, ha,
 		    "Can't re-enable PCI device after reset.\n");