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thunderbolt: Use pseudo-random number as initial property block generation

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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>
This commit is contained in:
Mika Westerberg 2021-01-08 14:05:06 +02:00
parent 8ccbed2476
commit a6932c3f9e
1 changed files with 2 additions and 0 deletions
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2
drivers/thunderbolt/xdomain.c
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@ -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;
}