[PATCH v2 net 2/6] ionic: add missing filter locking

[Shannon Nelson]

For completeness, add a couple more uses of the Rx filter
list locks.

Fixes: c1e329ebec8d ("ionic: Add management of rx filters")
Signed-off-by: Shannon Nelson <snel...@pensando.io>
---
 drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c 
b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
index 80eeb7696e01..cc2a6977081a 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
@@ -69,10 +69,12 @@ int ionic_rx_filters_init(struct ionic_lif *lif)
 
        spin_lock_init(&lif->rx_filters.lock);
 
+       spin_lock_bh(&lif->rx_filters.lock);
        for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
                INIT_HLIST_HEAD(&lif->rx_filters.by_hash[i]);
                INIT_HLIST_HEAD(&lif->rx_filters.by_id[i]);
        }
+       spin_unlock_bh(&lif->rx_filters.lock);
 
        return 0;
 }
@@ -84,11 +86,13 @@ void ionic_rx_filters_deinit(struct ionic_lif *lif)
        struct hlist_node *tmp;
        unsigned int i;
 
+       spin_lock_bh(&lif->rx_filters.lock);
        for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
                head = &lif->rx_filters.by_id[i];
                hlist_for_each_entry_safe(f, tmp, head, by_id)
                        ionic_rx_filter_free(lif, f);
        }
+       spin_unlock_bh(&lif->rx_filters.lock);
 }
 
 int ionic_rx_filter_save(struct ionic_lif *lif, u32 flow_id, u16 rxq_index,
-- 
2.17.1