PCI: Add a generic weak pcibios_fixup_bus()

Multiple architectures define this as an empty function, and I'm adding
another one as part of the RISC-V port.  Add a __weak version of
pcibios_fixup_bus() and delete the now-obselete ones in a handful of
ports.

The only functional change should be that microblaze used to export
pcibios_fixup_bus().  None of the other architectures exports this, so I
just dropped it.

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Palmer Dabbelt 2017-06-23 18:50:42 -07:00 committed by Bjorn Helgaas
parent 16f73eb02d
commit bccf90d6e0
10 changed files with 9 additions and 51 deletions

View File

@ -16,7 +16,3 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
{
return res->start;
}
void pcibios_fixup_bus(struct pci_bus *bus)
{
}

View File

@ -22,14 +22,6 @@
#include <linux/pci-ecam.h>
#include <linux/slab.h>
/*
* Called after each bus is probed, but before its children are examined
*/
void pcibios_fixup_bus(struct pci_bus *bus)
{
/* nothing to do, expected to be removed in the future */
}
/*
* We don't have to worry about legacy ISA devices, so nothing to do here
*/

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@ -2,10 +2,6 @@
#include <linux/kernel.h>
#include <hwregs/intr_vect.h>
void pcibios_fixup_bus(struct pci_bus *b)
{
}
void pcibios_set_master(struct pci_dev *dev)
{
u8 lat;

View File

@ -810,12 +810,6 @@ void pcibios_setup_bus_devices(struct pci_bus *bus)
}
}
void pcibios_fixup_bus(struct pci_bus *bus)
{
/* nothing to do */
}
EXPORT_SYMBOL(pcibios_fixup_bus);
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the

View File

@ -262,10 +262,6 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len)
return rc;
}
void pcibios_fixup_bus(struct pci_bus *bus)
{
}
resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size,
resource_size_t align)

View File

@ -154,14 +154,6 @@ static int __init pcibios_init(void)
}
subsys_initcall(pcibios_init);
/*
* Called after each bus is probed, but before its children
* are examined.
*/
void pcibios_fixup_bus(struct pci_bus *bus)
{
}
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the

View File

@ -690,10 +690,6 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
return bus;
}
void pcibios_fixup_bus(struct pci_bus *pbus)
{
}
resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{

View File

@ -369,14 +369,6 @@ int __init pcibios_init(void)
}
subsys_initcall(pcibios_init);
/*
* No bus fixups needed.
*/
void pcibios_fixup_bus(struct pci_bus *bus)
{
/* Nothing needs to be done. */
}
void pcibios_set_master(struct pci_dev *dev)
{
/* No special bus mastering setup handling. */

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@ -1038,11 +1038,6 @@ alloc_mem_map_failed:
}
subsys_initcall(pcibios_init);
/* No bus fixups needed. */
void pcibios_fixup_bus(struct pci_bus *bus)
{
}
/* Process any "pci=" kernel boot arguments. */
char *__init pcibios_setup(char *str)
{

View File

@ -2288,6 +2288,15 @@ void pcie_bus_configure_settings(struct pci_bus *bus)
}
EXPORT_SYMBOL_GPL(pcie_bus_configure_settings);
/*
* Called after each bus is probed, but before its children are examined. This
* is marked as __weak because multiple architectures define it.
*/
void __weak pcibios_fixup_bus(struct pci_bus *bus)
{
/* nothing to do, expected to be removed in the future */
}
unsigned int pci_scan_child_bus(struct pci_bus *bus)
{
unsigned int devfn, pass, max = bus->busn_res.start;