From patchwork Thu Mar 11 13:37:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oliver Neukum X-Patchwork-Id: 398121 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,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 7C62DC433E0 for ; Thu, 11 Mar 2021 13:38:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 25CE264FA0 for ; Thu, 11 Mar 2021 13:38:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233141AbhCKNhx (ORCPT ); Thu, 11 Mar 2021 08:37:53 -0500 Received: from mx2.suse.de ([195.135.220.15]:57792 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233241AbhCKNhZ (ORCPT ); Thu, 11 Mar 2021 08:37:25 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1615469844; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Lh33aZ1/HAbsrDNuK/JmDafPB7G0uv4zKnv2IjjuHlU=; b=E8CoJs0aCWI7hzXO5/g9Bf0PXiIR5dhEJjBFpl8oyXNwsHYn6zmZj40BRDeqDZqooEskqW ntcMOD6cykz6vknGpgq/IvbC5uCT34clJukByO0CJ/6G3cOCybqWmAVdlL4CWZKbhMBU4B HlXiZPcu+KrYf5SgiGikXlh8jUl1p/M= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 4ABA3AC17; Thu, 11 Mar 2021 13:37:24 +0000 (UTC) From: Oliver Neukum To: bruno.thomsen@gmail.com, gregKH@linuxfoundation.org, linux-usb@vger.kernel.org Cc: Oliver Neukum Subject: [PATCH] cdc-acm: fix BREAK rx code path adding necessary calls Date: Thu, 11 Mar 2021 14:37:14 +0100 Message-Id: <20210311133714.31881-1-oneukum@suse.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org 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 --- drivers/usb/class/cdc-acm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index b05207bc8265..fd2fce072985 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -326,8 +326,10 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf) 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)