From 4f4cb6f72c4e95cac32316b2be4a0b344513910a Mon Sep 17 00:00:00 2001
From: Tony Luck <tony.luck@intel.com>
Date: Fri, 20 Jul 2012 13:15:20 -0700
Subject: dmi: Feed DMI table to /dev/random driver

commit d114a33387472555188f142ed8e98acdb8181c6d upstream.

Send the entire DMI (SMBIOS) table to the /dev/random driver to
help seed its pools.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/dmi_scan.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/firmware')

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index bcb1126e3d0..02a52d13a46 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -6,6 +6,7 @@
 #include <linux/dmi.h>
 #include <linux/efi.h>
 #include <linux/bootmem.h>
+#include <linux/random.h>
 #include <asm/dmi.h>
 
 /*
@@ -111,6 +112,8 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
 
 	dmi_table(buf, dmi_len, dmi_num, decode, NULL);
 
+	add_device_randomness(buf, dmi_len);
+
 	dmi_iounmap(buf, dmi_len);
 	return 0;
 }
-- 
cgit v1.2.3-18-g5258