On 4/30/20 11:57 AM, Jakub Kicinski wrote:

Make ID argument optional and read the snapshot info
that kernel sends us.

$ devlink region new netdevsim/netdevsim1/dummy
netdevsim/netdevsim1/dummy: snapshot 0
$ devlink -jp region new netdevsim/netdevsim1/dummy
{
    "regions": {
        "netdevsim/netdevsim1/dummy": {
            "snapshot": [ 1 ]
        }
    }
}
$ devlink region show netdevsim/netdevsim1/dummy
netdevsim/netdevsim1/dummy: size 32768 snapshot [0 1]

v3: back to v1..

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 devlink/devlink.c | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

this does not apply to current iproute2-next