[SPARC64]: Disable verbose PCI IRQ probing messages by default.

Allow them to be enabled with "pci=irq_verbose" on the
boot command line.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index a868c37..6c9e3e9 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -406,8 +406,14 @@
 }
 EXPORT_SYMBOL(pcibios_bus_to_resource);
 
+extern int pci_irq_verbose;
+
 char * __init pcibios_setup(char *str)
 {
+	if (!strcmp(str, "irq_verbose")) {
+		pci_irq_verbose = 1;
+		return NULL;
+	}
 	return str;
 }