devicetree: add helper inline for retrieving a node's full name

The pattern (np ? np->full_name : "<none>") is rather common in the
kernel, but can also make for quite long lines.  This patch adds a new
inline function, of_node_full_name() so that the test for a valid node
pointer doesn't need to be open coded at all call sites.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index ed22bfc5db14..ca8f6e769960 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -249,8 +249,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
         } else {
                 pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
                          oirq.size, oirq.specifier[0], oirq.specifier[1],
-                         oirq.controller ? oirq.controller->full_name :
-                         "<default>");
+                         of_node_full_name(oirq.controller));
 
                 virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
                                              oirq.size);
@@ -1493,8 +1492,7 @@ static void __devinit pcibios_scan_phb(struct pci_controller *hose)
         struct pci_bus *bus;
         struct device_node *node = hose->dn;
 
-        pr_debug("PCI: Scanning PHB %s\n",
-                 node ? node->full_name : "<NO NAME>");
+        pr_debug("PCI: Scanning PHB %s\n", of_node_full_name(node));
 
         pcibios_setup_phb_resources(hose, &resources);