Message ID | 20170614233531.40509-1-jeffrey.t.kirsher@intel.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Date: Wed, 14 Jun 2017 16:35:31 -0700 > From: Jia-Ju Bai <baijiaju1990@163.com> > > The driver may sleep under a spin lock, and the function call path is: > i40e_ndo_set_vf_port_vlan (acquire the lock by spin_lock_bh) > i40e_vsi_remove_pvid > i40e_vlan_stripping_disable > i40e_aq_update_vsi_params > i40e_asq_send_command > mutex_lock --> may sleep > > To fixed it, the spin lock is released before "i40e_vsi_remove_pvid", and > the lock is acquired again after this function. > > Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> > Tested-by: Andrew Bowers <andrewx.bowers@intel.com> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Applied, thanks Jeff.
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 95c23fbaa211..0fb38ca78900 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -3017,10 +3017,12 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, VLAN_VID_MASK)); } + spin_unlock_bh(&vsi->mac_filter_hash_lock); if (vlan_id || qos) ret = i40e_vsi_add_pvid(vsi, vlanprio); else i40e_vsi_remove_pvid(vsi); + spin_lock_bh(&vsi->mac_filter_hash_lock); if (vlan_id) { dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",