Currently, we fail to retrieve the PF number in some cases (e.g
single ported cards, lag capability), this further results in a
call trace issued by the rtnetlink code, since the error value
is not -EOPNOTSUPP. Change the implementation to be independent
from the lag code and function properly on both two ports and
single ported cards.
Call Trace:
[ 194.525057] mlx5_core 0000:82:00.0: mlx5_lag_get_pf_num:605:(pid 837): no lag device, can't get pf num
[ 194.525804] WARNING: CPU: 7 PID: 837 at net/core/rtnetlink.c:3457 rtmsg_ifinfo_build_skb+0x131/0x160
[ 194.529952] CPU: 7 PID: 837 Comm: kworker/7:3 Tainted: G W O 5.0.0-rc7+ #3
[ 194.531307] Workqueue: events linkwatch_event
[ 194.531697] RIP: 0010:rtmsg_ifinfo_build_skb+0x131/0x160
[ 194.545007] Call Trace:
[ 194.545406] rtmsg_ifinfo_event.part.29+0x1b/0xb0
[ 194.545810] rtmsg_ifinfo+0x51/0x80
[ 194.546209] netdev_state_change+0xc7/0x110
[ 194.546608] ? dev_valid_name+0x1b0/0x1b0
[ 194.547010] ? __local_bh_enable_ip+0xef/0x1d0
[ 194.547411] ? lockdep_hardirqs_on+0x3ea/0x560
[ 194.547811] ? linkwatch_do_dev+0x9b/0x100
[ 194.548207] linkwatch_do_dev+0x9b/0x100
[ 194.548605] __linkwatch_run_queue+0x244/0x430
[ 194.549014] ? linkwatch_schedule_work+0x100/0x100
[ 194.549412] ? lock_acquire+0x10f/0x2d0
[ 194.549816] linkwatch_event+0x3f/0x50
[ 194.550212] process_one_work+0x7d3/0x1460
Fixes: c12ecc2305 ("net/mlx5e: Move to use common phys port names for vport representors")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5b33eba99f