linux-kernel - [RFC] PPC: add for_each_node

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Message-ID: <20071116211002.GC7710@cvg>
Date:	Sat, 17 Nov 2007 00:10:02 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Paul Mackerras <paulus@...ba.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [RFC] PPC: add for_each_node_child() macro

This patch adds usefull macro to iterate over a node childs.

Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
---
TODO: convert all for(...) cycles to this macro.

 include/linux/of.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/of.h b/include/linux/of.h
index 5c39b92..a93e2aa 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -46,6 +46,8 @@ 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_node_child(dn, child) \
+	for (child = NULL; (child = of_get_next_child(dn, child)); )
 extern struct property *of_find_property(const struct device_node *np,
 					 const char *name,
					 int *lenp);

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