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netdevsim: generate random switch id instead of using dev id

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Current implementation of parent_id/switch_id does not follow the
original idea of being unique. The values are "0", "1", etc. Instead of
that, generate 32 random bytes.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2019-04-25 15:59:51 +02:00
committed by David S. Miller
parent d514f41e79
commit 514cf64cc5
3 changed files with 5 additions and 2 deletions
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3
drivers/net/netdevsim/dev.c
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@@ -17,6 +17,7 @@
#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/random.h>
#include <linux/rtnetlink.h>
#include <net/devlink.h>
@@ -204,6 +205,8 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
return ERR_PTR(-ENOMEM);
nsim_dev = devlink_priv(devlink);
nsim_dev->nsim_bus_dev = nsim_bus_dev;
nsim_dev->switch_id.id_len = sizeof(nsim_dev->switch_id.id);
get_random_bytes(nsim_dev->switch_id.id, nsim_dev->switch_id.id_len);
nsim_dev->fib_data = nsim_fib_create();
if (IS_ERR(nsim_dev->fib_data)) {