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Date: Mon, 18 Jan 2016 12:07:48 +0530 From: Maninder Singh <maninder1.s@...sung.com> To: davem@...emloft.net, willemb@...gle.com, daniel@...earbox.net, edumazet@...gle.com, eyal.birger@...il.com, tklauser@...tanz.ch, fruggeri@...stanetworks.com, dwmw2@...radead.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Cc: pankaj.m@...sung.com, gh007.kim@...sung.com, hakbong5.lee@...sung.com, Maninder Singh <maninder1.s@...sung.com>, Vaneet Narang <v.narang@...sung.com> Subject: [PATCH] af_packet: Raw socket destruction warning fix Receieve queue is not purged when socket dectruction is called results in kernel warning because of non zero sk_rmem_alloc. WARNING: at net/packet/af_packet.c:1142 packet_sock_destruct Backtrace: WARN_ON(atomic_read(&sk->sk_rmem_alloc) packet_sock_destruct __sk_free sock_wfree skb_release_head_state skb_release_all __kfree_skb net_tx_action __do_softirq run_ksoftirqd Signed-off-by: Vaneet Narang <v.narang@...sung.com> Signed-off-by: Maninder Singh <maninder1.s@...sung.com> --- net/packet/af_packet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 81b4b81..bcb37ba 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1310,6 +1310,7 @@ static bool packet_rcv_has_room(struct packet_sock *po, struct sk_buff *skb) static void packet_sock_destruct(struct sock *sk) { + skb_queue_purge(&sk->sk_receive_queue); skb_queue_purge(&sk->sk_error_queue); WARN_ON(atomic_read(&sk->sk_rmem_alloc)); -- 1.7.9.5
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