From patchwork Tue Dec 6 14:37:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 13065869 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC861C352A1 for ; Tue, 6 Dec 2022 14:40:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233247AbiLFOkX (ORCPT ); Tue, 6 Dec 2022 09:40:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231272AbiLFOkU (ORCPT ); Tue, 6 Dec 2022 09:40:20 -0500 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4B99F0B for ; Tue, 6 Dec 2022 06:40:15 -0800 (PST) Received: from dggpemm500007.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4NRNNC45w2zmWNY; Tue, 6 Dec 2022 22:39:23 +0800 (CST) Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 6 Dec 2022 22:40:12 +0800 From: Yang Yingliang To: CC: , , , Subject: [PATCH net] net: plip: don't call kfree_skb/dev_kfree_skb() under spin_lock_irq() Date: Tue, 6 Dec 2022 22:37:56 +0800 Message-ID: <20221206143756.2234670-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org It is not allowed to call kfree_skb() or consume_skb() from hardware interrupt context or with interrupts being disabled. So replace kfree_skb/dev_kfree_skb() with dev_kfree_skb_irq() and dev_consume_skb_irq() under spin_lock_irq(). Signed-off-by: Yang Yingliang --- drivers/net/plip/plip.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c index c8791e9b451d..40ce8abe6999 100644 --- a/drivers/net/plip/plip.c +++ b/drivers/net/plip/plip.c @@ -450,12 +450,12 @@ plip_bh_timeout_error(struct net_device *dev, struct net_local *nl, } rcv->state = PLIP_PK_DONE; if (rcv->skb) { - kfree_skb(rcv->skb); + dev_kfree_skb_irq(rcv->skb); rcv->skb = NULL; } snd->state = PLIP_PK_DONE; if (snd->skb) { - dev_kfree_skb(snd->skb); + dev_consume_skb_irq(snd->skb); snd->skb = NULL; } spin_unlock_irq(&nl->lock);