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authorChristoph Hellwig <hch@lst.de>2006-03-08 16:47:00 +0100
committerPaul Mackerras <paulus@samba.org>2006-03-17 13:21:09 +1100
commite33852228f74b8ccbed8595083bb725b70902ed7 (patch)
treea73484a589b2d2f20d82f591d823b98a021cd4b1 /include/asm-powerpc/prom.h
parentd116fe5aeafd8226712d2de9c69428725ca74474 (diff)
downloadop-kernel-dev-e33852228f74b8ccbed8595083bb725b70902ed7.zip
op-kernel-dev-e33852228f74b8ccbed8595083bb725b70902ed7.tar.gz
[PATCH] powerpc: add for_each_node_by_foo helpers
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 <hch@lst.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/prom.h')
-rw-r--r--include/asm-powerpc/prom.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index cbd297f..782e13a 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -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);
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