From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH 1/2] mk: fix build for clang 4 Date: Wed, 19 Apr 2017 15:23:44 +0200 Message-ID: <2941238.rVYzCPaN70@xps> References: <20170417143559.11701-1-ferruh.yigit@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org To: Ferruh Yigit , Jerin Jacob Return-path: Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by dpdk.org (Postfix) with ESMTP id 592E8388F for ; Wed, 19 Apr 2017 15:23:46 +0200 (CEST) In-Reply-To: <20170417143559.11701-1-ferruh.yigit@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 17/04/2017 16:35, Ferruh Yigit: > clang 4 gives "taking address of packed member may result in an > unaligned pointer value" warnings in a few locations [1]. > > Disabled "-Waddress-of-packed-member" warning for clang >= 4 > > [1] build errors: > .../lib/librte_eal/common/eal_common_memzone.c:275:25: > error: taking address of packed member 'mlock' of class or structure > 'rte_mem_config' may result in an unaligned pointer value > [-Werror,-Waddress-of-packed-member] > rte_rwlock_write_lock(&mcfg->mlock); > ^~~~~~~~~~~ > > .../lib/librte_ip_frag/rte_ipv4_reassembly.c:139:31: > error: taking address of packed member 'src_addr' of class or structure > 'ipv4_hdr' may result in an unaligned pointer value > [-Werror,-Waddress-of-packed-member] > psd = (unaligned_uint64_t *)&ip_hdr->src_addr; > ^~~~~~~~~~~~~~~~ > > .../lib/librte_vhost/vhost_user.c:1037:34: > error: taking address of packed member 'payload' of class or structure > 'VhostUserMsg' may result in an unaligned pointer value > [-Werror,-Waddress-of-packed-member] > vhost_user_set_vring_num(dev, &msg.payload.state); > ^~~~~~~~~~~~~~~~~ > > Signed-off-by: Ferruh Yigit Series applied, thanks