From mboxrd@z Thu Jan 1 00:00:00 1970 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_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 DE99EC43612 for ; Tue, 15 Jan 2019 16:38:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A29E72054F for ; Tue, 15 Jan 2019 16:38:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547570293; bh=lAdmIhEy4hgehvb4+trendWJjkwfNDnJApwZ+lvDSAc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=VG+MxCSUF4+F2NL57nmECGwqy4WjQg6CqRpE5jlOpByiJBaNKVl4Ho/cnOTc+8uW9 NqDvxhQ1KZkDOoMVv0hkwABzLQvDXmTy0F2qjDkFjVckcl2ghDT4JzBPaRDM4ZeoPn s2NDul3pvyDndjUVJOzUjNxDvS4OlXlss9enMAQo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732030AbfAOQiK (ORCPT ); Tue, 15 Jan 2019 11:38:10 -0500 Received: from mail.kernel.org ([198.145.29.99]:53812 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730038AbfAOQiD (ORCPT ); Tue, 15 Jan 2019 11:38:03 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.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 1A2192054F; Tue, 15 Jan 2019 16:38:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547570283; bh=lAdmIhEy4hgehvb4+trendWJjkwfNDnJApwZ+lvDSAc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Awtgj919KUMcg95XB9Us82bOcpzz/p493ZV77FYvlPivvnlejhZtxcFY6sGFQljMg ykzL+fMX1uQgdZSx63mg3LgG25H+SCZNyKQl9g+bx7q7CnNZ6J00l/3eVWCgMBUmMb 3mRAvp0HBJh00tkcGIIpu6QK2F1u2Mz/vR9lE8kQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Daniele Palmas Subject: [PATCH 4.4 35/51] usb: cdc-acm: send ZLP for Telit 3G Intel based modems Date: Tue, 15 Jan 2019 17:35:31 +0100 Message-Id: <20190115154851.947316285@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190115154846.928796000@linuxfoundation.org> References: <20190115154846.928796000@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Daniele Palmas commit 34aabf918717dd14e05051896aaecd3b16b53d95 upstream. Telit 3G Intel based modems require zero packet to be sent if out data size is equal to the endpoint max packet size. Signed-off-by: Daniele Palmas Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1885,6 +1885,13 @@ static const struct usb_device_id acm_id .driver_info = IGNORE_DEVICE, }, + { USB_DEVICE(0x1bc7, 0x0021), /* Telit 3G ACM only composition */ + .driver_info = SEND_ZERO_PACKET, + }, + { USB_DEVICE(0x1bc7, 0x0023), /* Telit 3G ACM + ECM composition */ + .driver_info = SEND_ZERO_PACKET, + }, + /* control interfaces without any protocol set */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, USB_CDC_PROTO_NONE) },