From patchwork Wed Nov 5 13:16:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 5234381 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 76083C11AC for ; Wed, 5 Nov 2014 14:25:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id ADCBE2015E for ; Wed, 5 Nov 2014 14:25:28 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D7F4020108 for ; Wed, 5 Nov 2014 14:25:27 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xm1Uj-0005vI-1N; Wed, 05 Nov 2014 14:23:33 +0000 Received: from mail-bn1bon0133.outbound.protection.outlook.com ([157.56.111.133] helo=na01-bn1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xm1Ub-0005iD-TU for linux-arm-kernel@lists.infradead.org; Wed, 05 Nov 2014 14:23:26 +0000 Received: from DM2PR03MB334.namprd03.prod.outlook.com (10.141.54.19) by DM2PR03MB383.namprd03.prod.outlook.com (10.141.55.17) with Microsoft SMTP Server (TLS) id 15.1.11.14; Wed, 5 Nov 2014 14:23:02 +0000 Received: from BY2PR03CA062.namprd03.prod.outlook.com (10.141.249.35) by DM2PR03MB334.namprd03.prod.outlook.com (10.141.54.19) with Microsoft SMTP Server (TLS) id 15.1.11.9; Wed, 5 Nov 2014 14:22:58 +0000 Received: from BN1AFFO11FD052.protection.gbl (2a01:111:f400:7c10::101) by BY2PR03CA062.outlook.office365.com (2a01:111:e400:2c5d::35) with Microsoft SMTP Server (TLS) id 15.1.11.14 via Frontend Transport; Wed, 5 Nov 2014 14:22:58 +0000 Received: from tx30smr01.am.freescale.net (192.88.168.50) by BN1AFFO11FD052.mail.protection.outlook.com (10.58.53.67) with Microsoft SMTP Server (TLS) id 15.1.6.13 via Frontend Transport; Wed, 5 Nov 2014 14:22:57 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id sA5EMqFj017243; Wed, 5 Nov 2014 07:22:54 -0700 From: Dong Aisheng To: Subject: [PATCH V3 1/3] can: add can_is_canfd_skb() API Date: Wed, 5 Nov 2014 21:16:31 +0800 Message-ID: <1415193393-30023-1-git-send-email-b29396@freescale.com> X-Mailer: git-send-email 1.9.1 X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:192.88.168.50; CTRY:US; IPV:CAL; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(979002)(6009001)(189002)(199003)(33646002)(99396003)(64706001)(48376002)(107046002)(120916001)(2351001)(21056001)(229853001)(104016003)(36756003)(62966003)(110136001)(50466002)(95666004)(31966008)(105606002)(106466001)(97736003)(26826002)(104166001)(102836001)(20776003)(92566001)(50986999)(68736004)(93916002)(88136002)(44976005)(4396001)(87936001)(77156002)(6806004)(47776003)(92726001)(87286001)(50226001)(19580405001)(89996001)(19580395003)(46102003)(84676001)(42262002)(969003)(989001)(999001)(1009001)(1019001); DIR:OUT; SFP:1102; SCL:1; SRVR:DM2PR03MB334; H:tx30smr01.am.freescale.net; FPR:; MLV:ovrnspm; PTR:InfoDomainNonexistent; MX:1; A:1; LANG:en; MIME-Version: 1.0 X-Microsoft-Antispam: UriScan:;UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:DM2PR03MB334; X-Forefront-PRVS: 0386B406AA Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=Aisheng.Dong@freescale.com; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:DM2PR03MB383; X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141105_062326_195585_EB2E19DC X-CRM114-Status: UNSURE ( 5.41 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: netdev@vger.kernel.org, varkabhadram@gmail.com, mkl@pengutronix.de, linux-arm-kernel@lists.infradead.org, socketcan@hartkopp.net, b29396@freescale.com, wg@grandegger.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The CAN device drivers can use it to check if the frame to send is on CAN FD mode or normal CAN mode. Acked-by: Oliver Hartkopp Signed-off-by: Dong Aisheng --- ChangesLog: * v1->v2: change to skb->len == CANFD_MTU; --- include/linux/can/dev.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 6992afc..4c3919c 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -99,6 +99,11 @@ inval_skb: return 1; } +static inline int can_is_canfd_skb(struct sk_buff *skb) +{ + return skb->len == CANFD_MTU; +} + /* get data length from can_dlc with sanitized can_dlc */ u8 can_dlc2len(u8 can_dlc);