From 9f00e4b200e0eb32410b3b0cf8dc6e3fa0704bbf Mon Sep 17 00:00:00 2001
From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Date: Thu, 23 Jul 2020 11:31:48 -0600
Subject: [PATCH 10/12] dev: Defer free of skbs in flush_backlog
Git-commit: 7df5cb75cfb8acf96c7f2342530eb41e0c11f4c3
Patch-mainline: v5.8-rc7
References: git-fixes

IRQs are disabled when freeing skbs in input queue.
Use the IRQ safe variant to free skbs here.

Fixes: 145dd5f9c88f ("net: flush the softnet backlog in process context")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Denis Kirjanov <dkirjanov@suse.com>
---
 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 763512255725..378d34bd26ad 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5202,7 +5202,7 @@ 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);
 		}
 	}
-- 
2.16.4