[PATCH V2 05/29] agp: nvidia: deprecate pci_get_bus_and_slot()

From: Sinan Kaya
Date: Wed Nov 22 2017 - 17:57:04 EST


pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.

Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
---
drivers/char/agp/nvidia-agp.c | 12 +++++++++---
drivers/char/agp/sworks-agp.c | 3 ++-
2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
index 828b344..623205b 100644
--- a/drivers/char/agp/nvidia-agp.c
+++ b/drivers/char/agp/nvidia-agp.c
@@ -340,11 +340,17 @@ static int agp_nvidia_probe(struct pci_dev *pdev,
u8 cap_ptr;

nvidia_private.dev_1 =
- pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(0, 1));
+ pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+ (unsigned int)pdev->bus->number,
+ PCI_DEVFN(0, 1));
nvidia_private.dev_2 =
- pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(0, 2));
+ pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+ (unsigned int)pdev->bus->number,
+ PCI_DEVFN(0, 2));
nvidia_private.dev_3 =
- pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(30, 0));
+ pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+ (unsigned int)pdev->bus->number,
+ PCI_DEVFN(30, 0));

if (!nvidia_private.dev_1 || !nvidia_private.dev_2 || !nvidia_private.dev_3) {
printk(KERN_INFO PFX "Detected an NVIDIA nForce/nForce2 "
diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c
index 03be4ac..4dbdd3b 100644
--- a/drivers/char/agp/sworks-agp.c
+++ b/drivers/char/agp/sworks-agp.c
@@ -474,7 +474,8 @@ static int agp_serverworks_probe(struct pci_dev *pdev,
}

/* Everything is on func 1 here so we are hardcoding function one */
- bridge_dev = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
+ bridge_dev = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+ (unsigned int)pdev->bus->number,
PCI_DEVFN(0, 1));
if (!bridge_dev) {
dev_info(&pdev->dev, "can't find secondary device\n");
--
1.9.1