From e33852228f74b8ccbed8595083bb725b70902ed7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 8 Mar 2006 16:47:00 +0100
Subject: [PATCH] [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>
---
 include/asm-powerpc/prom.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index cbd297f44cce..782e13a070a1 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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