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powerpc/pci: Export pci_traverse_device_nodes()

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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>
This commit is contained in:
Gavin Shan
2016-05-03 15:41:42 +10:00
committed by Michael Ellerman
parent de5a28ac5a
commit cdddc577d9
3 changed files with 15 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/powerpc/kernel/pci_dn.c
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@@ -372,8 +372,9 @@ EXPORT_SYMBOL_GPL(pci_remove_device_node_info);
* one of these nodes we also assume its siblings are non-pci for
* performance.
*/
void *traverse_pci_devices(struct device_node *start, traverse_func pre,
void *data)
void *pci_traverse_device_nodes(struct device_node *start,
void *(*fn)(struct device_node *, void *),
void *data)
{
struct device_node *dn, *nextdn;
void *ret;
@@ -388,8 +389,11 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
if (classp)
class = of_read_number(classp, 1);
if (pre && ((ret = pre(dn, data)) != NULL))
return ret;
if (fn) {
ret = fn(dn, data);
if (ret)
return ret;
}
/* If we are a PCI bridge, go down */
if (dn->child && ((class >> 8) == PCI_CLASS_BRIDGE_PCI ||
@@ -411,6 +415,7 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
}
return NULL;
}
EXPORT_SYMBOL_GPL(pci_traverse_device_nodes);
static struct pci_dn *pci_dn_next_one(struct pci_dn *root,
struct pci_dn *pdn)
@@ -487,7 +492,7 @@ void pci_devs_phb_init_dynamic(struct pci_controller *phb)
}
/* Update dn->phb ptrs for new phb and children devices */
traverse_pci_devices(dn, add_pdn, phb);
pci_traverse_device_nodes(dn, add_pdn, phb);
}
/**