From patchwork Mon Apr 5 08:54:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 415811 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 DA01DC433B4 for ; Mon, 5 Apr 2021 08:59:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1484613A8 for ; Mon, 5 Apr 2021 08:59:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234141AbhDEI7g (ORCPT ); Mon, 5 Apr 2021 04:59:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:40440 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236841AbhDEI7e (ORCPT ); Mon, 5 Apr 2021 04:59:34 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 15D9C610E8; Mon, 5 Apr 2021 08:59:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617613167; bh=T3+hdNBhYshHi2hkgR6N2wWj4BaklXfdyEQ59LcYNt4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DtV3x45BJNREtlSedRJlOTduzmZSfs+uj1RffnjGbqGECPLKAfm1omNxK3yZMUKIu CVlekMlYcjrzNr/LXEzlrCXtGusisVI2UzXv3teLwoM6K8HhqgK7TTtBT65CnTBe2v W5e21hAH18A4+RronaUmTYjqlYKzJiGFmjSJqB8E= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Oliver Neukum Subject: [PATCH 4.14 45/52] cdc-acm: fix BREAK rx code path adding necessary calls Date: Mon, 5 Apr 2021 10:54:11 +0200 Message-Id: <20210405085023.445432032@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210405085021.996963957@linuxfoundation.org> References: <20210405085021.996963957@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Oliver Neukum commit 08dff274edda54310d6f1cf27b62fddf0f8d146e upstream. Counting break events is nice but we should actually report them to the tty layer. Fixes: 5a6a62bdb9257 ("cdc-acm: add TIOCMIWAIT") Signed-off-by: Oliver Neukum Link: https://lore.kernel.org/r/20210311133714.31881-1-oneukum@suse.com Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -324,8 +324,10 @@ static void acm_process_notification(str acm->iocount.dsr++; if (difference & ACM_CTRL_DCD) acm->iocount.dcd++; - if (newctrl & ACM_CTRL_BRK) + if (newctrl & ACM_CTRL_BRK) { acm->iocount.brk++; + tty_insert_flip_char(&acm->port, 0, TTY_BREAK); + } if (newctrl & ACM_CTRL_RI) acm->iocount.rng++; if (newctrl & ACM_CTRL_FRAMING)