[PATCH iwl-net v2 0/2] ice: fix DFLT Rx rule handling for promisc and switchdev

[Petr Oros <poros@redhat.com>]

Two fixes for the uplink default VSI Rx rule (DFLT) on E810 when the
netdev is in IFF_PROMISC.

Patch 1 drops the redundant per-VLAN promisc expansion that exhausts
the FLU pool on a wide VLAN trunk across several PFs.

Patch 2 keeps the DFLT Rx rule across a switchdev teardown instead of
clobbering the promisc state the operator asked for.

Changes since v1:
- Patch 2: reworked to avoid the service task entirely. v1 scheduled a
  filter sync in ice_eswitch_disable_switchdev(); that work could run
  after ice_remove() freed the uplink VSI (use-after-free) and was not
  guaranteed to fire if ice_set_rx_mode() never ran again. v2 keeps or
  drops the DFLT Rx rule synchronously in ice_eswitch_release_env() by
  testing the live netdev->flags IFF_PROMISC, the same value
  ice_cfg_vlan_pruning() already keys on. No service task is scheduled
  and no symbol is exported. Dropped Aleksandr's Reviewed-by since the
  fix mechanism changed.
- Patch 1: no functional changes, collected Aleksandr's Reviewed-by.

Link to v1:
https://lore.kernel.org/all/cover.1781786935.git.poros@redhat.com/

Petr Oros (2):
  ice: skip per-VLAN promisc rules when default VSI Rx rule is set
  ice: preserve uplink DFLT Rx rule on switchdev release

 drivers/net/ethernet/intel/ice/ice_eswitch.c | 18 +++-
 drivers/net/ethernet/intel/ice/ice_main.c    | 90 +++++++++++++++-----
 2 files changed, 84 insertions(+), 24 deletions(-)

-- 
2.53.0