| From d114a33387472555188f142ed8e98acdb8181c6d 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 |
| |
| From: Tony Luck <tony.luck@intel.com> |
| |
| 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(+) |
| |
| --- 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 (* |
| |
| dmi_table(buf, dmi_len, dmi_num, decode, NULL); |
| |
| + add_device_randomness(buf, dmi_len); |
| + |
| dmi_iounmap(buf, dmi_len); |
| return 0; |
| } |
