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ice: lag: in RCU, use atomic allocation 

[ Upstream commit e1db8c2a01d7e12bd566106fbeefa3c5cccd2003 ]

Sleeping is not allowed in RCU read-side critical sections.
Use atomic allocations under rcu_read_lock.

Fixes: 1e0f9881ef ("ice: Flesh out implementation of support for SRIOV on bonded interface")
Fixes: 41ccedf5ca ("ice: implement lag netdev event handler")
Fixes: 3579aa86fb ("ice: update reset path for SRIOV LAG support")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michal Schmidt 2023-10-23 12:59:53 +02:00 committed by Greg Kroah-Hartman
parent cceeddd5ca
commit 6f8e5afed2
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/intel/ice/ice_lag.c
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@ -595,7 +595,7 @@ void ice_lag_move_new_vf_nodes(struct ice_vf *vf)
INIT_LIST_HEAD(&ndlist.node);
rcu_read_lock();
for_each_netdev_in_bond_rcu(lag->upper_netdev, tmp_nd) {
nl = kzalloc(sizeof(*nl), GFP_KERNEL);
nl = kzalloc(sizeof(*nl), GFP_ATOMIC);
if (!nl)
break;
@ -1666,7 +1666,7 @@ ice_lag_event_handler(struct notifier_block *notif_blk, unsigned long event,
rcu_read_lock();
for_each_netdev_in_bond_rcu(upper_netdev, tmp_nd) {
nd_list = kzalloc(sizeof(*nd_list), GFP_KERNEL);
nd_list = kzalloc(sizeof(*nd_list), GFP_ATOMIC);
if (!nd_list)
break;
@ -2040,7 +2040,7 @@ void ice_lag_rebuild(struct ice_pf *pf)
INIT_LIST_HEAD(&ndlist.node);
rcu_read_lock();
for_each_netdev_in_bond_rcu(lag->upper_netdev, tmp_nd) {
nl = kzalloc(sizeof(*nl), GFP_KERNEL);
nl = kzalloc(sizeof(*nl), GFP_ATOMIC);
if (!nl)
break;