1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 4c5ee96bf487..543c5002831e 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -18,6 +18,7 @@
 #include <linux/string.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/random.h>
 
 #include <asm/setup.h>  /* for COMMAND_LINE_SIZE */
 #ifdef CONFIG_PPC
@@ -726,3 +727,14 @@ void __init unflatten_device_tree(void)
 }
 
 #endif /* CONFIG_OF_EARLY_FLATTREE */
+
+/* Feed entire flattened device tree into the random pool */
+static int __init add_fdt_randomness(void)
+{
+        if (initial_boot_params)
+                add_device_randomness(initial_boot_params,
+                                be32_to_cpu(initial_boot_params->totalsize));
+
+        return 0;
+}
+core_initcall(add_fdt_randomness);