dev: Defer free of skbs in flush_backlog

IRQs are disabled when freeing skbs in input queue. Use the IRQ safe variant to free skbs here. Fixes: 145dd5f ("net: flush the softnet backlog in process context") Signed-off-by: Subash Abhinov Kasiviswanathan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
ambv · Jul 25, 2020 · 7df5cb7 · 7df5cb7
1 parent af9f691
commit 7df5cb7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/core/dev.c b/net/core/dev.c
@@ -5601,7 +5601,7 @@ static void flush_backlog(struct work_struct *work)
 	skb_queue_walk_safe(&sd->input_pkt_queue, skb, tmp) {
 		if (skb->dev->reg_state == NETREG_UNREGISTERING) {
 			__skb_unlink(skb, &sd->input_pkt_queue);
-			kfree_skb(skb);
+			dev_kfree_skb_irq(skb);
 			input_queue_head_incr(sd);
 		}
 	}