net: vrf: Add extack messages for newlink failures

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Add extack error messages for failure paths creating vrf devices. Once
extack support is added to iproute2, we go from the unhelpful:
    $  ip li add foobar type vrf
    RTNETLINK answers: Invalid argument

to:
    $ ip li add foobar type vrf
    Error: VRF table id is missing

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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David Ahern 2017-08-07 10:08:10 -07:00 • committed by David S. Miller

parent 733a707d6c

commit 53b9483565

1 changed files with 13 additions and 4 deletions

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17

drivers/net/vrf.c

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