mtd: Introduce and use iteration macro for reading the MTD device table

[safe/jmp/linux-2.6] / drivers / mtd / mtdcore.h

diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h
index a33251f..e2f93a3 100644 (file)
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -9,3 +9,18 @@
 
 extern struct mutex mtd_table_mutex;
 extern struct mtd_info *mtd_table[MAX_MTD_DEVICES];
+
+static inline struct mtd_info *__mtd_next_device(int i)
+{
+       while (i < MAX_MTD_DEVICES) {
+               if (mtd_table[i])
+                       return mtd_table[i];
+               i++;
+       }
+       return NULL;
+}
+
+#define mtd_for_each_device(mtd)                       \
+       for ((mtd) = __mtd_next_device(0);              \
+            (mtd) != NULL;                             \
+            (mtd) = __mtd_next_device(mtd->index + 1))