From patchwork Tue Mar 24 13:10:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228869 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AEECEC41621 for ; Tue, 24 Mar 2020 13:18:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D6C6206F6 for ; Tue, 24 Mar 2020 13:18:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585055889; bh=L734DQCsAtgGBQaBPUMxvXOifmfHtf8bfxHJL/1XbNs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=zpgttDgv2RNSa4q6laGjEu9t6E3CIraDlNJT0sdSy5dDGVAWnYRRNOgBFHUBlUNnj HCtbLU1MgmE0TQLN4Zk5+wUZ+/u7GlPze9W9JoonMj4XXHjhnCXM0oOXL6z0Lep++F Z3thS93hiE45RDnuq6N5Jpsa/sv9kpj2A2gVyaVw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728099AbgCXNSJ (ORCPT ); Tue, 24 Mar 2020 09:18:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:38090 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728075AbgCXNSG (ORCPT ); Tue, 24 Mar 2020 09:18:06 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 75946208D5; Tue, 24 Mar 2020 13:18:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585055886; bh=L734DQCsAtgGBQaBPUMxvXOifmfHtf8bfxHJL/1XbNs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZXC/VdUhFSJ7Q/NYLjgcEseGr25kCo0IIzg9J2bKbatX2fDUYpVZGowF9ZtNp579e 4MoYobrguc+JtNY3cHwj7XgcaQz2CjdsKlKboKIcEJt/F8KljqHuwIA1JJfALlbyft wKTvoFmix1sAu2tdyAz5iKTpOJ19QV2Sx6s19SMI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ran Wang , Stephen Boyd , Peter Chen Subject: [PATCH 5.4 040/102] usb: host: xhci-plat: add a shutdown Date: Tue, 24 Mar 2020 14:10:32 +0100 Message-Id: <20200324130810.796047109@linuxfoundation.org> X-Mailer: git-send-email 2.25.2 In-Reply-To: <20200324130806.544601211@linuxfoundation.org> References: <20200324130806.544601211@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ran Wang commit b433e340e7565110b0ce9ca4b3e26f4b97a1decf upstream. When loading new kernel via kexec, we need to shutdown host controller to avoid any un-expected memory accessing during new kernel boot. Signed-off-by: Ran Wang Cc: stable Tested-by: Stephen Boyd Reviewed-by: Peter Chen Link: https://lore.kernel.org/r/20200306092328.41253-1-ran.wang_1@nxp.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-plat.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -445,6 +445,7 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_ static struct platform_driver usb_xhci_driver = { .probe = xhci_plat_probe, .remove = xhci_plat_remove, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "xhci-hcd", .pm = &xhci_plat_pm_ops,