X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fidr.h;h=de7e190f1af4ea7d7b596a3a224e40ccbc7a6a44;hb=986836503e49ccf7e84b813715d344964ec93566;hp=87259a44c251472595598f0f6ed0852655171554;hpb=ccae7868b0c5697508a541c531cf96b361d62c1c;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/idr.h b/include/linux/idr.h
index 87259a44c251..de7e190f1af4 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -152,4 +152,15 @@ void ida_simple_remove(struct ida *ida, unsigned int id);
 
 void __init idr_init_cache(void);
 
+/**
+ * idr_for_each_entry - iterate over an idr's elements of a given type
+ * @idp:     idr handle
+ * @entry:   the type * to use as cursor
+ * @id:      id entry's key
+ */
+#define idr_for_each_entry(idp, entry, id)				\
+	for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \
+	     entry != NULL;                                             \
+	     ++id, entry = (typeof(entry))idr_get_next((idp), &(id)))
+
 #endif /* __IDR_H__ */