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authorMichael Ellerman <michael@ellerman.id.au>2007-11-26 19:03:45 +1100
committerPaul Mackerras <paulus@samba.org>2007-12-11 13:34:39 +1100
commitaabc08dc662b7acb17ca5706533253ce10c050b1 (patch)
treed4cc522f5eedeaffc465f7c3e26de8b809c7abcf
parent18cce5d321cf01413f416d7fe9fb00404cba04fd (diff)
[POWERPC] Add for_each_child_of_node() helper for iterating over child nodes
Add for_each_child_of_node() to encapsulate the common idiom of iterating over the children of a device_node. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--include/linux/of.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index 5c39b9270ff..c65af7bd1e9 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -46,6 +46,10 @@ extern struct device_node *of_find_node_by_phandle(phandle handle);
extern struct device_node *of_get_parent(const struct device_node *node);
extern struct device_node *of_get_next_child(const struct device_node *node,
struct device_node *prev);
+#define for_each_child_of_node(parent, child) \
+ for (child = of_get_next_child(parent, NULL); child != NULL; \
+ child = of_get_next_child(parent, child))
+
extern struct property *of_find_property(const struct device_node *np,
const char *name,
int *lenp);