From patchwork Tue Dec 6 11:46:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 631522 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 233FFC352A1 for ; Tue, 6 Dec 2022 11:48:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234460AbiLFLsa (ORCPT ); Tue, 6 Dec 2022 06:48:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229449AbiLFLs2 (ORCPT ); Tue, 6 Dec 2022 06:48:28 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5D90DFE6 for ; Tue, 6 Dec 2022 03:48:27 -0800 (PST) Received: from dggpemm500007.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4NRJZ04b63zRpF7; Tue, 6 Dec 2022 19:47:36 +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 19:48:25 +0800 From: Yang Yingliang To: , , CC: Subject: [PATCH 0/4] libertas/libertas_tf: don't call kfree_skb() under spin_lock_irqsave() Date: Tue, 6 Dec 2022 19:46:05 +0800 Message-ID: <20221206114609.2006175-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org It is not allowed to call kfree_skb() from hardware interrupt context or with interrupts being disabled. As the comment of dev_kfree_skb_irq() says, kfree_skb() can be replaced with dev_kfree_skb_irq() under spin_lock_irqsave(). Yang Yingliang (4): libertas_tf: don't call kfree_skb() under spin_lock_irqsave() libertas: don't call kfree_skb() under spin_lock_irqsave() in process_cmdrequest() libertas: don't call kfree_skb() under spin_lock_irqsave() in lbs_stop_iface() libertas: don't call kfree_skb() under spin_lock_irqsave() in lbs_mac_event_disconnected() drivers/net/wireless/marvell/libertas/cmdresp.c | 2 +- drivers/net/wireless/marvell/libertas/if_usb.c | 2 +- drivers/net/wireless/marvell/libertas/main.c | 2 +- drivers/net/wireless/marvell/libertas_tf/if_usb.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-)