From: Christoph Hellwig Date: Wed, 8 Mar 2006 15:47:00 +0000 (+0100) Subject: [PATCH] powerpc: add for_each_node_by_foo helpers X-Git-Tag: upstream/snapshot3+hdmi~42228^2~28^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e33852228f74b8ccbed8595083bb725b70902ed7;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git [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 Signed-off-by: Paul Mackerras --- 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);