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[POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const 

A) It's not modified and so it can be made const.  const is good.
B) If one has a function that was given a const pci_bus pointer and you
want to get a pointer to its pci_controller, you'll get a warning from gcc
when you use pci_bus_to_host().  This is the right way to stop that
warning.

Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Trent Piepho 2008-04-09 12:19:32 +10:00 committed by Paul Mackerras
parent 49a9997884
commit f13f4ca803
1 changed files with 2 additions and 2 deletions
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4
include/asm-powerpc/pci-bridge.h
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@ -117,7 +117,7 @@ struct pci_controller {
#ifndef CONFIG_PPC64
static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus)
{
return bus->sysdata;
}
@ -235,7 +235,7 @@ extern void pcibios_fixup_new_pci_devices(struct pci_bus *bus);
extern int pcibios_remove_root_bus(struct pci_controller *phb);
static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus)
{
struct device_node *busdn = bus->sysdata;