@@ -162,8 +162,7 @@ static int celleb_fake_pci_read_config(struct pci_bus *bus,
unsigned int devfn, int where, int size, u32 *val)
{
char *config;
- struct device_node *node;
- struct pci_controller *hose;
+ struct pci_controller *hose = pci_bus_to_host(bus);
unsigned int devno = devfn >> 3;
unsigned int fn = devfn & 0x7;
@@ -171,8 +170,6 @@ static int celleb_fake_pci_read_config(struct pci_bus *bus,
BUG_ON(where % size);
pr_debug(" fake read: bus=0x%x, ", bus->number);
- node = (struct device_node *)bus->sysdata;
- hose = pci_find_hose_for_OF_device(node);
config = get_fake_config_start(hose, devno, fn);
pr_debug("devno=0x%x, where=0x%x, size=0x%x, ", devno, where, size);
@@ -192,8 +189,7 @@ static int celleb_fake_pci_write_config(struct pci_bus *bus,
unsigned int devfn, int where, int size, u32 val)
{
char *config;
- struct device_node *node;
- struct pci_controller *hose;
+ struct pci_controller *hose = pci_bus_to_host(bus);
struct celleb_pci_resource *res;
unsigned int devno = devfn >> 3;
unsigned int fn = devfn & 0x7;
@@ -201,8 +197,6 @@ static int celleb_fake_pci_write_config(struct pci_bus *bus,
/* allignment check */
BUG_ON(where % size);
- node = (struct device_node *)bus->sysdata;
- hose = pci_find_hose_for_OF_device(node);
config = get_fake_config_start(hose, devno, fn);
if (!config)
@@ -134,15 +134,11 @@ static int celleb_epci_read_config(struct pci_bus *bus,
{
PCI_IO_ADDR epci_base;
PCI_IO_ADDR addr;
- struct device_node *node;
- struct pci_controller *hose;
+ struct pci_controller *hose = pci_bus_to_host(bus);
/* allignment check */
BUG_ON(where % size);
- node = (struct device_node *)bus->sysdata;
- hose = pci_find_hose_for_OF_device(node);
-
if (!celleb_epci_get_epci_cfg(hose))
return PCIBIOS_DEVICE_NOT_FOUND;
@@ -198,16 +194,11 @@ static int celleb_epci_write_config(struct pci_bus *bus,
{
PCI_IO_ADDR epci_base;
PCI_IO_ADDR addr;
- struct device_node *node;
- struct pci_controller *hose;
+ struct pci_controller *hose = pci_bus_to_host(bus);
/* allignment check */
BUG_ON(where % size);
- node = (struct device_node *)bus->sysdata;
- hose = pci_find_hose_for_OF_device(node);
-
-
if (!celleb_epci_get_epci_cfg(hose))
return PCIBIOS_DEVICE_NOT_FOUND;
@@ -366,11 +366,7 @@ static void config_write_pciex_rc(unsigned int __iomem *base, uint32_t where,
static int scc_pciex_read_config(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int *val)
{
- struct device_node *dn;
- struct pci_controller *phb;
-
- dn = bus->sysdata;
- phb = pci_find_hose_for_OF_device(dn);
+ struct pci_controller *phb = pci_bus_to_host(bus);
if (bus->number == phb->first_busno && PCI_SLOT(devfn) != 1) {
*val = ~0;
@@ -389,11 +385,7 @@ static int scc_pciex_read_config(struct pci_bus *bus, unsigned int devfn,
static int scc_pciex_write_config(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int val)
{
- struct device_node *dn;
- struct pci_controller *phb;
-
- dn = bus->sysdata;
- phb = pci_find_hose_for_OF_device(dn);
+ struct pci_controller *phb = pci_bus_to_host(bus);
if (bus->number == phb->first_busno && PCI_SLOT(devfn) != 1)
return PCIBIOS_DEVICE_NOT_FOUND;
We shouldn't directly access sysdata to get the device node to just go get the pci_controller. We can call pci_bus_to_host() for this purpose. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> --- arch/powerpc/platforms/cell/celleb_pci.c | 10 ++-------- arch/powerpc/platforms/cell/celleb_scc_epci.c | 13 ++----------- arch/powerpc/platforms/cell/celleb_scc_pciex.c | 12 ++---------- 3 files changed, 6 insertions(+), 29 deletions(-)