diff options
| author | Tony Luck <tony.luck@intel.com> | 2012-07-20 13:15:20 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-15 07:52:49 -0700 |
| commit | 33fc625ce55e037eceb04efd57aa4c094a064dbd (patch) | |
| tree | 0ea9f1d4fb7e7cec22e5527020f5df8c3034cf96 | |
| parent | 91e66eea0fe522c44a8ac10e09e05c4422f56512 (diff) | |
| download | lwn-33fc625ce55e037eceb04efd57aa4c094a064dbd.tar.gz lwn-33fc625ce55e037eceb04efd57aa4c094a064dbd.zip | |
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>
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 153980be4ee6..b298158cb922 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; } |