From patchwork Fri Oct 6 21:32:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 9990377 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B554060247 for ; Fri, 6 Oct 2017 21:33:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A809C28DF4 for ; Fri, 6 Oct 2017 21:33:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9D39B28E14; Fri, 6 Oct 2017 21:33:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8735228DF7 for ; Fri, 6 Oct 2017 21:33:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752606AbdJFVdf (ORCPT ); Fri, 6 Oct 2017 17:33:35 -0400 Received: from esa4.hgst.iphmx.com ([216.71.154.42]:45710 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752276AbdJFVdf (ORCPT ); Fri, 6 Oct 2017 17:33:35 -0400 X-IronPort-AV: E=Sophos;i="5.42,486,1500912000"; d="scan'208";a="56489602" Received: from sjappemgw12.hgst.com (HELO sjappemgw11.hgst.com) ([199.255.44.66]) by ob1.hgst.iphmx.com with ESMTP; 07 Oct 2017 05:33:34 +0800 Received: from thinkpad-bart.sdcorp.global.sandisk.com (HELO thinkpad-bart.int.fusionio.com) ([10.11.172.152]) by sjappemgw11.hgst.com with ESMTP; 06 Oct 2017 14:33:34 -0700 From: Bart Van Assche To: Doug Ledford Cc: linux-rdma@vger.kernel.org, Bart Van Assche Subject: [PATCH 01/47] IB/core: Fix endianness annotation in rdma_is_multicast_addr() Date: Fri, 6 Oct 2017 14:32:47 -0700 Message-Id: <20171006213333.6721-2-bart.vanassche@wdc.com> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171006213333.6721-1-bart.vanassche@wdc.com> References: <20171006213333.6721-1-bart.vanassche@wdc.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Since ipv4_addr is a big endian 32-bit number, annotate it as such. Fixes: commit be1d325a3358 ("IB/core: Set RoCEv2 MGID according to spec") Signed-off-by: Bart Van Assche Reviewed-by: Leon Romanovsky --- include/rdma/ib_addr.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index ec5008cf5d51..cfa82d16573d 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -305,12 +305,12 @@ static inline void rdma_get_ll_mac(struct in6_addr *addr, u8 *mac) static inline int rdma_is_multicast_addr(struct in6_addr *addr) { - u32 ipv4_addr; + __be32 ipv4_addr; if (addr->s6_addr[0] == 0xff) return 1; - memcpy(&ipv4_addr, addr->s6_addr + 12, 4); + ipv4_addr = addr->s6_addr32[3]; return (ipv6_addr_v4mapped(addr) && ipv4_is_multicast(ipv4_addr)); }