PCI: cpqhp: Deprecate pci_get_bus_and_slot()
authorSinan Kaya <okaya@codeaurora.org>
Tue, 19 Dec 2017 05:37:51 +0000 (00:37 -0500)
committerBjorn Helgaas <bhelgaas@google.com>
Wed, 17 Jan 2018 14:16:46 +0000 (08:16 -0600)
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().

Hard-coding the domain number as 0. The code doesn't seem to be ready
for multiple domains.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
drivers/pci/hotplug/cpqphp_pci.c

index e220d49..8897a77 100644 (file)
@@ -89,7 +89,9 @@ int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func)
        pci_lock_rescan_remove();
 
        if (func->pci_dev == NULL)
-               func->pci_dev = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, func->function));
+               func->pci_dev = pci_get_domain_bus_and_slot(0, func->bus,
+                                                       PCI_DEVFN(func->device,
+                                                       func->function));
 
        /* No pci device, we need to create it then */
        if (func->pci_dev == NULL) {
@@ -99,7 +101,9 @@ int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func)
                if (num)
                        pci_bus_add_devices(ctrl->pci_dev->bus);
 
-               func->pci_dev = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, func->function));
+               func->pci_dev = pci_get_domain_bus_and_slot(0, func->bus,
+                                                       PCI_DEVFN(func->device,
+                                                       func->function));
                if (func->pci_dev == NULL) {
                        dbg("ERROR: pci_dev still null\n");
                        goto out;
@@ -129,7 +133,10 @@ int cpqhp_unconfigure_device(struct pci_func *func)
 
        pci_lock_rescan_remove();
        for (j = 0; j < 8 ; j++) {
-               struct pci_dev *temp = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, j));
+               struct pci_dev *temp = pci_get_domain_bus_and_slot(0,
+                                                       func->bus,
+                                                       PCI_DEVFN(func->device,
+                                                       j));
                if (temp) {
                        pci_dev_put(temp);
                        pci_stop_and_remove_bus_device(temp);
@@ -319,6 +326,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug)
        int cloop = 0;
        int stop_it;
        int index;
+       u16 devfn;
 
        /* Decide which slots are supported */
 
@@ -416,7 +424,9 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug)
                        new_slot->switch_save = 0x10;
                        /* In case of unsupported board */
                        new_slot->status = DevError;
-                       new_slot->pci_dev = pci_get_bus_and_slot(new_slot->bus, (new_slot->device << 3) | new_slot->function);
+                       devfn = (new_slot->device << 3) | new_slot->function;
+                       new_slot->pci_dev = pci_get_domain_bus_and_slot(0,
+                                                       new_slot->bus, devfn);
 
                        for (cloop = 0; cloop < 0x20; cloop++) {
                                rc = pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(device, function), cloop << 2, (u32 *) &(new_slot->config_space[cloop]));