powerpc/pci: Export pci_traverse_device_nodes()

This renames traverse_pci_devices() to pci_traverse_device_nodes().
The function traverses all subordinate device nodes of the specified
one. Also, below cleanup applied to the function. No logical changes
introduced.

   * Rename "pre" to "fn".
   * Avoid assignment in if condition reported from checkpatch.pl.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 272e9ec1ab54..543a6386f3eb 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -305,7 +305,7 @@ static int msi_quota_for_device(struct pci_dev *dev, int request)
         memset(&counts, 0, sizeof(struct msi_counts));
 
         /* Work out how many devices we have below this PE */
-        traverse_pci_devices(pe_dn, count_non_bridge_devices, &counts);
+        pci_traverse_device_nodes(pe_dn, count_non_bridge_devices, &counts);
 
         if (counts.num_devices == 0) {
                 pr_err("rtas_msi: found 0 devices under PE for %s\n",
@@ -320,7 +320,7 @@ static int msi_quota_for_device(struct pci_dev *dev, int request)
         /* else, we have some more calculating to do */
         counts.requestor = pci_device_to_OF_node(dev);
         counts.request = request;
-        traverse_pci_devices(pe_dn, count_spare_msis, &counts);
+        pci_traverse_device_nodes(pe_dn, count_spare_msis, &counts);
 
         /* If the quota isn't an integer multiple of the total, we can
          * use the remainder as spare MSIs for anyone that wants them. */