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[PATCH] powerpc: add for_each_node_by_foo helpers

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Typical use for of_find_node_by_name and of_find_node_by_type is to
iterate over all nodes of a given type/name.  Add a helper macro to
do that (in spirit of the list_for_each* macros).

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Christoph Hellwig authored and Paul Mackerras committed 2006-03-17 13:21:09 +11:00
1 parent d116fe5aea
commit e33852228f
1 file changed
+6
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include/asm-powerpc/prom.h
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@@ -126,8 +126,14 @@ extern struct device_node *find_all_nodes(void);
/* New style node lookup */
extern struct device_node *of_find_node_by_name(struct device_node *from,
const char *name);
#define for_each_node_by_name(dn, name) \
for (dn = of_find_node_by_name(NULL, name); dn; \
dn = of_find_node_by_name(dn, name))
extern struct device_node *of_find_node_by_type(struct device_node *from,
const char *type);
#define for_each_node_by_type(dn, type) \
for (dn = of_find_node_by_type(NULL, type); dn; \
dn = of_find_node_by_type(dn, type))
extern struct device_node *of_find_compatible_node(struct device_node *from,
const char *type, const char *compat);
extern struct device_node *of_find_node_by_path(const char *path);