block: add secure discard

[karo-tx-linux.git] / include / linux / of.h

diff --git a/include/linux/of.h b/include/linux/of.h
index a367e19bb3afef4b4da81b5f0676a87b7e1911da..cad7cf0ab27855f6fff3e35fb9b95a96867a9e91 100644 (file)
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -70,6 +70,11 @@ extern struct device_node *allnodes;
 extern struct device_node *of_chosen;
 extern rwlock_t devtree_lock;
 
+static inline bool of_node_is_root(const struct device_node *node)
+{
+       return node && (node->parent == NULL);
+}
+
 static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
 {
        return test_bit(flag, &n->_flags);
@@ -141,6 +146,11 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 
 #define OF_BAD_ADDR    ((u64)-1)
 
+#ifndef of_node_to_nid
+static inline int of_node_to_nid(struct device_node *np) { return -1; }
+#define of_node_to_nid of_node_to_nid
+#endif
+
 extern struct device_node *of_find_node_by_name(struct device_node *from,
        const char *name);
 #define for_each_node_by_name(dn, name) \