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| author |   Taehee Yoo <ap420073@gmail.com> | 2019-10-30 08:15:12 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-10-30 11:52:47 -0700 |
| commit | c6761cf521f9bffbdcbb619dba665ebf3bcefb1e (patch) | |
| tree | 2239aae2ad437c9a5160029dee85b3f6335e7fcf /drivers/net/ethernet/qlogic/qed/qed_main.c | |
| parent | qed: fix spelling mistake "queuess" -> "queues" (diff) | |
| download | linux-dev-c6761cf521f9bffbdcbb619dba665ebf3bcefb1e.tar.xz linux-dev-c6761cf521f9bffbdcbb619dba665ebf3bcefb1e.zip | |
vxlan: fix unexpected failure of vxlan_changelink()
After commit 0ce1822c2a08 ("vxlan: add adjacent link to limit depth
level"), vxlan_changelink() could fail because of
netdev_adjacent_change_prepare().
netdev_adjacent_change_prepare() returns -EEXIST when old lower device
and new lower device are same.
(old lower device is "dst->remote_dev" and new lower device is "lowerdev")
So, before calling it, lowerdev should be NULL if these devices are same.
Test command1:
ip link add dummy0 type dummy
ip link add vxlan0 type vxlan dev dummy0 dstport 4789 vni 1
ip link set vxlan0 type vxlan ttl 5
RTNETLINK answers: File exists
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 0ce1822c2a08 ("vxlan: add adjacent link to limit depth level")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_main.c')
0 files changed, 0 insertions, 0 deletions