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PCI: Remove pci_scan_root_bus_msi() 

The pci_scan_root_bus_bridge() function allows passing a parameterized
struct pci_host_bridge and scanning the resulting PCI bus; since the struct
msi_controller is part of the struct pci_host_bridge and the struct
pci_host_bridge can now be passed to pci_scan_root_bus_bridge() explicitly,
there is no need for a scan interface with a MSI controller parameter.

With all PCI host controller drivers and platform code relying on
pci_scan_root_bus_msi() converted over to pci_scan_root_bus_bridge() the
pci_scan_root_bus_msi() becomes obsolete and can be removed.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Lorenzo Pieralisi 2017-06-28 15:14:01 -05:00 committed by Bjorn Helgaas
parent 123db53307
commit 9ee8a1c4a0
2 changed files with 5 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/pci/probe.c
View File

@ -2324,9 +2324,8 @@ void __weak pcibios_remove_bus(struct pci_bus *bus)
{
}
static struct pci_bus *pci_create_root_bus_msi(struct device *parent,
int bus, struct pci_ops *ops, void *sysdata,
struct list_head *resources, struct msi_controller *msi)
struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
int error;
struct pci_host_bridge *bridge;
@ -2341,7 +2340,6 @@ static struct pci_bus *pci_create_root_bus_msi(struct device *parent,
bridge->sysdata = sysdata;
bridge->busnr = bus;
bridge->ops = ops;
bridge->msi = msi;
error = pci_register_host_bridge(bridge);
if (error < 0)
@ -2353,13 +2351,6 @@ err_out:
kfree(bridge);
return NULL;
}
struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
return pci_create_root_bus_msi(parent, bus, ops, sysdata, resources,
NULL);
}
EXPORT_SYMBOL_GPL(pci_create_root_bus);
int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max)
@ -2464,9 +2455,8 @@ int pci_scan_root_bus_bridge(struct pci_host_bridge *bridge)
}
EXPORT_SYMBOL(pci_scan_root_bus_bridge);
struct pci_bus *pci_scan_root_bus_msi(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata,
struct list_head *resources, struct msi_controller *msi)
struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
struct resource_entry *window;
bool found = false;
@ -2479,7 +2469,7 @@ struct pci_bus *pci_scan_root_bus_msi(struct device *parent, int bus,
break;
}
b = pci_create_root_bus_msi(parent, bus, ops, sysdata, resources, msi);
b = pci_create_root_bus(parent, bus, ops, sysdata, resources);
if (!b)
return NULL;
@ -2497,13 +2487,6 @@ struct pci_bus *pci_scan_root_bus_msi(struct device *parent, int bus,
return b;
}
struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
return pci_scan_root_bus_msi(parent, bus, ops, sysdata, resources,
NULL);
}
EXPORT_SYMBOL(pci_scan_root_bus);
struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops,

4
include/linux/pci.h
View File

@ -849,10 +849,6 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax);
int pci_bus_update_busn_res_end(struct pci_bus *b, int busmax);
void pci_bus_release_busn_res(struct pci_bus *b);
struct pci_bus *pci_scan_root_bus_msi(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata,
struct list_head *resources,
struct msi_controller *msi);
struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata,
struct list_head *resources);