aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/microblaze/kernel/prom.c23
-rw-r--r--arch/powerpc/kernel/prom.c23
-rw-r--r--drivers/of/base.c26
-rw-r--r--include/linux/of.h3
4 files changed, 27 insertions, 48 deletions
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index c005cc6f1aaf..b817df172aa9 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -860,29 +860,6 @@ struct device_node *of_find_node_by_phandle(phandle handle)
860EXPORT_SYMBOL(of_find_node_by_phandle); 860EXPORT_SYMBOL(of_find_node_by_phandle);
861 861
862/** 862/**
863 * of_find_all_nodes - Get next node in global list
864 * @prev: Previous node or NULL to start iteration
865 * of_node_put() will be called on it
866 *
867 * Returns a node pointer with refcount incremented, use
868 * of_node_put() on it when done.
869 */
870struct device_node *of_find_all_nodes(struct device_node *prev)
871{
872 struct device_node *np;
873
874 read_lock(&devtree_lock);
875 np = prev ? prev->allnext : allnodes;
876 for (; np != NULL; np = np->allnext)
877 if (of_node_get(np))
878 break;
879 of_node_put(prev);
880 read_unlock(&devtree_lock);
881 return np;
882}
883EXPORT_SYMBOL(of_find_all_nodes);
884
885/**
886 * of_node_get - Increment refcount of a node 863 * of_node_get - Increment refcount of a node
887 * @node: Node to inc refcount, NULL is supported to 864 * @node: Node to inc refcount, NULL is supported to
888 * simplify writing of callers 865 * simplify writing of callers
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index d4405b95bfaa..4ec300862466 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1317,29 +1317,6 @@ struct device_node *of_find_next_cache_node(struct device_node *np)
1317} 1317}
1318 1318
1319/** 1319/**
1320 * of_find_all_nodes - Get next node in global list
1321 * @prev: Previous node or NULL to start iteration
1322 * of_node_put() will be called on it
1323 *
1324 * Returns a node pointer with refcount incremented, use
1325 * of_node_put() on it when done.
1326 */
1327struct device_node *of_find_all_nodes(struct device_node *prev)
1328{
1329 struct device_node *np;
1330
1331 read_lock(&devtree_lock);
1332 np = prev ? prev->allnext : allnodes;
1333 for (; np != 0; np = np->allnext)
1334 if (of_node_get(np))
1335 break;
1336 of_node_put(prev);
1337 read_unlock(&devtree_lock);
1338 return np;
1339}
1340EXPORT_SYMBOL(of_find_all_nodes);
1341
1342/**
1343 * of_node_get - Increment refcount of a node 1320 * of_node_get - Increment refcount of a node
1344 * @node: Node to inc refcount, NULL is supported to 1321 * @node: Node to inc refcount, NULL is supported to
1345 * simplify writing of callers 1322 * simplify writing of callers
diff --git a/drivers/of/base.c b/drivers/of/base.c
index ddf224d456b2..e6627b2320f1 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -9,7 +9,8 @@
9 * 9 *
10 * Adapted for sparc and sparc64 by David S. Miller davem@davemloft.net 10 * Adapted for sparc and sparc64 by David S. Miller davem@davemloft.net
11 * 11 *
12 * Reconsolidated from arch/x/kernel/prom.c by Stephen Rothwell. 12 * Reconsolidated from arch/x/kernel/prom.c by Stephen Rothwell and
13 * Grant Likely.
13 * 14 *
14 * This program is free software; you can redistribute it and/or 15 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License 16 * modify it under the terms of the GNU General Public License
@@ -82,6 +83,29 @@ struct property *of_find_property(const struct device_node *np,
82} 83}
83EXPORT_SYMBOL(of_find_property); 84EXPORT_SYMBOL(of_find_property);
84 85
86/**
87 * of_find_all_nodes - Get next node in global list
88 * @prev: Previous node or NULL to start iteration
89 * of_node_put() will be called on it
90 *
91 * Returns a node pointer with refcount incremented, use
92 * of_node_put() on it when done.
93 */
94struct device_node *of_find_all_nodes(struct device_node *prev)
95{
96 struct device_node *np;
97
98 read_lock(&devtree_lock);
99 np = prev ? prev->allnext : allnodes;
100 for (; np != NULL; np = np->allnext)
101 if (of_node_get(np))
102 break;
103 of_node_put(prev);
104 read_unlock(&devtree_lock);
105 return np;
106}
107EXPORT_SYMBOL(of_find_all_nodes);
108
85/* 109/*
86 * Find a property with a given name for a given node 110 * Find a property with a given name for a given node
87 * and return the value. 111 * and return the value.
diff --git a/include/linux/of.h b/include/linux/of.h
index 4636bba93afa..e7facd8fbce8 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -79,6 +79,8 @@ set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
79 dn->pde = de; 79 dn->pde = de;
80} 80}
81 81
82extern struct device_node *of_find_all_nodes(struct device_node *prev);
83
82#if defined(CONFIG_SPARC) 84#if defined(CONFIG_SPARC)
83/* Dummy ref counting routines - to be implemented later */ 85/* Dummy ref counting routines - to be implemented later */
84static inline struct device_node *of_node_get(struct device_node *node) 86static inline struct device_node *of_node_get(struct device_node *node)
@@ -90,7 +92,6 @@ static inline void of_node_put(struct device_node *node)
90} 92}
91 93
92#else 94#else
93extern struct device_node *of_find_all_nodes(struct device_node *prev);
94extern struct device_node *of_node_get(struct device_node *node); 95extern struct device_node *of_node_get(struct device_node *node);
95extern void of_node_put(struct device_node *node); 96extern void of_node_put(struct device_node *node);
96#endif 97#endif