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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 2B843C48BD3 for ; Thu, 27 Jun 2019 00:38:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0288921852 for ; Thu, 27 Jun 2019 00:38:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561595934; bh=E8TsNWqqX7qcM4nyVjmHw2lrxq2b78X7JmRXlJJM+Zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=e/Y3GsIKneXrls+Syht+eg24ubId/l9Q29Y+XrtKRBgP7ze2MbmVUg26QNUquv7Da +lELwn+ApCM3PF86xl6GRS4Z282pZaOT5eQw5tUKWqoXDU2WVogQvRTIXXFxMyzbBP yYHLAs51k1Lt04KY4dEp2EtZnDG6gBvKSljG7jWE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728968AbfF0Aiw (ORCPT ); Wed, 26 Jun 2019 20:38:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:43076 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728942AbfF0Ait (ORCPT ); Wed, 26 Jun 2019 20:38:49 -0400 Received: from sasha-vm.mshome.net (unknown [107.242.116.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B210C21871; Thu, 27 Jun 2019 00:38:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561595928; bh=E8TsNWqqX7qcM4nyVjmHw2lrxq2b78X7JmRXlJJM+Zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NQ0XV6u2e1vv5pNQptmhxZEOQw5GMADwc/DqX6cuPtsXCyb6m0WwLCPJwbrXxKt+S v3paOg8oUzeJqJJ+d3eKVPZpVuCAUSghQH6EP6UHSANs3yxeD98ZRQ4W16QcF7MDqX bDoX0rEJ2A7veVBhn6Nv82itkLYObfuzeIkeisYM= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Reinhard Speyerer , Daniele Palmas , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 48/60] qmi_wwan: extend permitted QMAP mux_id value range Date: Wed, 26 Jun 2019 20:36:03 -0400 Message-Id: <20190627003616.20767-48-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190627003616.20767-1-sashal@kernel.org> References: <20190627003616.20767-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore 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 From: Reinhard Speyerer [ Upstream commit 36815b416fa48766ac5a98e4b2dc3ebc5887222e ] Permit mux_id values up to 254 to be used in qmimux_register_device() for compatibility with ip(8) and the rmnet driver. Fixes: c6adf77953bc ("net: usb: qmi_wwan: add qmap mux protocol support") Cc: Daniele Palmas Signed-off-by: Reinhard Speyerer Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- Documentation/ABI/testing/sysfs-class-net-qmi | 4 ++-- drivers/net/usb/qmi_wwan.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-class-net-qmi b/Documentation/ABI/testing/sysfs-class-net-qmi index 7122d6264c49..c310db4ccbc2 100644 --- a/Documentation/ABI/testing/sysfs-class-net-qmi +++ b/Documentation/ABI/testing/sysfs-class-net-qmi @@ -29,7 +29,7 @@ Contact: Bjørn Mork Description: Unsigned integer. - Write a number ranging from 1 to 127 to add a qmap mux + Write a number ranging from 1 to 254 to add a qmap mux based network device, supported by recent Qualcomm based modems. @@ -46,5 +46,5 @@ Contact: Bjørn Mork Description: Unsigned integer. - Write a number ranging from 1 to 127 to delete a previously + Write a number ranging from 1 to 254 to delete a previously created qmap mux based network device. diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 4165113c435a..2f8e957a0496 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -363,8 +363,8 @@ static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, c if (kstrtou8(buf, 0, &mux_id)) return -EINVAL; - /* mux_id [1 - 0x7f] range empirically found */ - if (mux_id < 1 || mux_id > 0x7f) + /* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */ + if (mux_id < 1 || mux_id > 254) return -EINVAL; if (!rtnl_trylock()) -- 2.20.1