[PATCH] rbtx4938: fix some warnings

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

This patch fixes:

linux/arch/mips/pci/fixup-tx4938.c:21:5: warning: symbol 'pci_get_irq' was not 
declared. Should it be static?
linux/arch/mips/pci/fixup-tx4938.c:76: warning: passing argument 1 of 
'pci_get_irq' discards qualifiers from pointer target type

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
---
diff --git a/arch/mips/pci/fixup-tx4938.c b/arch/mips/pci/fixup-tx4938.c
index 2485f47..f2ba06e 100644
--- a/arch/mips/pci/fixup-tx4938.c
+++ b/arch/mips/pci/fixup-tx4938.c
@@ -18,7 +18,7 @@
 
 extern struct pci_controller tx4938_pci_controller[];
 
-int pci_get_irq(struct pci_dev *dev, int pin)
+static int pci_get_irq(const struct pci_dev *dev, int pin)
 {
        int irq = pin;
        u8 slot = PCI_SLOT(dev->devfn);