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dev: Defer free of skbs in flush_backlog

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[ Upstream commit 7df5cb75cf ]

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

Fixes: 145dd5f9c8 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Subash Abhinov Kasiviswanathan 2020-07-23 11:31:48 -06:00 committed by Greg Kroah-Hartman
parent 4d9bd02c9e
commit 68c46a0adc
1 changed files with 1 additions and 1 deletions
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2
net/core/dev.c
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@ -5252,7 +5252,7 @@ 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);
}
}