microblaze: Fix pci compilation and sparse warnings

Warning log:
  CHECK   arch/microblaze/pci/pci-common.c
arch/microblaze/pci/pci-common.c:290:14: warning: Using plain integer as NULL pointer
arch/microblaze/pci/pci-common.c:1127:6: warning: symbol
'pcibios_allocate_bus_resources' was not declared. Should it be static?
arch/microblaze/pci/pci-common.c:1436:61: warning: incorrect type in argument 3 (different base types)
arch/microblaze/pci/pci-common.c:1436:61:    expected unsigned int [unsigned] [usertype] offset
arch/microblaze/pci/pci-common.c:1436:61:    got void [noderef] <asn:2>*
  CC      arch/microblaze/pci/pci-common.o
arch/microblaze/pci/pci-common.c: In function 'pci_proc_domain':
arch/microblaze/pci/pci-common.c:825:25: warning: unused variable 'hose' [-Wunused-variable]
arch/microblaze/pci/pci-common.c: In function 'pcibios_allocate_bus_resources':
arch/microblaze/pci/pci-common.c:1182:1: warning: label 'clear_resource' defined but not used [-Wunused-label]
arch/microblaze/pci/pci-common.c: In function 'pcibios_setup_phb_resources':
arch/microblaze/pci/pci-common.c:1436:2: warning: passing argument 3 of
'pci_add_resource_offset' makes integer from pointer without a cast [enabled by default]
include/linux/pci.h:999:6: note: expected 'resource_size_t' but argument is of type 'void *'

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index a1c5b996d66d..e84b129620db 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -287,7 +287,7 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev,
         unsigned long io_offset = 0;
         int i, res_bit;
 
-        if (hose == 0)
+        if (!hose)
                 return NULL;            /* should never happen */
 
         /* If memory, add on the PCI bridge address offset */
@@ -822,8 +822,6 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 /* Decide whether to display the domain number in /proc */
 int pci_proc_domain(struct pci_bus *bus)
 {
-        struct pci_controller *hose = pci_bus_to_host(bus);
-
         return 0;
 }
 
@@ -1124,7 +1122,7 @@ static int __init reparent_resources(struct resource *parent,
  *          as well.
  */
 
-void pcibios_allocate_bus_resources(struct pci_bus *bus)
+static void pcibios_allocate_bus_resources(struct pci_bus *bus)
 {
         struct pci_bus *b;
         int i;
@@ -1179,7 +1177,7 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus)
                 }
                 printk(KERN_WARNING "PCI: Cannot allocate resource region "
                        "%d of PCI bridge %d, will remap\n", i, bus->number);
-clear_resource:
+
                 res->start = res->end = 0;
                 res->flags = 0;
         }
@@ -1433,7 +1431,8 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, s
                 res->end = res->start + IO_SPACE_LIMIT;
                 res->flags = IORESOURCE_IO;
         }
-        pci_add_resource_offset(resources, res, hose->io_base_virt - _IO_BASE);
+        pci_add_resource_offset(resources, res,
+                (__force resource_size_t)(hose->io_base_virt - _IO_BASE));
 
         pr_debug("PCI: PHB IO resource    = %016llx-%016llx [%lx]\n",
                  (unsigned long long)res->start,