[PATCH 07/18] thunderbolt: Use pseudo-random number as initial property block generation
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: 2021-03-04 12:34:09
Also in:
netdev
Subsystem:
the rest, thunderbolt driver · Maintainers:
Linus Torvalds, Andreas Noever, Mika Westerberg, Yehezkel Bernat
As recommended by USB4 inter-domain service spec use pseudo-random value instead of zero as initial XDomain property block generation value. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> --- drivers/thunderbolt/xdomain.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index a1657663a95e..cfe6fa7e84f4 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c@@ -12,6 +12,7 @@ #include <linux/kmod.h> #include <linux/module.h> #include <linux/pm_runtime.h> +#include <linux/prandom.h> #include <linux/utsname.h> #include <linux/uuid.h> #include <linux/workqueue.h>
@@ -1880,6 +1881,7 @@ int tb_xdomain_init(void) tb_property_add_immediate(xdomain_property_dir, "deviceid", 0x1); tb_property_add_immediate(xdomain_property_dir, "devicerv", 0x80000100); + xdomain_property_block_gen = prandom_u32(); return 0; }
--
2.30.1