diff options
| author | Aleksandr Loktionov <aleksandr.loktionov@intel.com> | 2023-03-24 20:16:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-26 15:29:56 +0300 |
| commit | 382d0529c4820fbbcb516632d408f8d7fc6da37f (patch) | |
| tree | af15f1b1ebe41b855ac317aeccc15cb84e936f1b | |
| parent | 4e5abb1c3a17222706dd9b8ce51ab21dd988f54e (diff) | |
| download | linux-382d0529c4820fbbcb516632d408f8d7fc6da37f.tar.xz | |
i40e: fix accessing vsi->active_filters without holding lock
[ Upstream commit 8485d093b076e59baff424552e8aecfc5bd2d261 ]
Fix accessing vsi->active_filters without holding the mac_filter_hash_lock.
Move vsi->active_filters = 0 inside critical section and
move clear_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) after the critical
section to ensure the new filters from other threads can be added only after
filters cleaning in the critical section is finished.
Fixes: 278e7d0b9d68 ("i40e: store MAC/VLAN filters in a hash with the MAC Address as key")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 8328139db379..2e9a8ff90e0c 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -14125,15 +14125,15 @@ static int i40e_add_vsi(struct i40e_vsi *vsi) vsi->id = ctxt.vsi_number; } - vsi->active_filters = 0; - clear_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state); spin_lock_bh(&vsi->mac_filter_hash_lock); + vsi->active_filters = 0; /* If macvlan filters already exist, force them to get loaded */ hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { f->state = I40E_FILTER_NEW; f_count++; } spin_unlock_bh(&vsi->mac_filter_hash_lock); + clear_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state); if (f_count) { vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; |