From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A53D7F4 for ; Tue, 24 May 2022 09:27:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1653384436; x=1684920436; h=date:from:to:cc:subject:message-id:mime-version; bh=e3jN57bB6zr0T4zZ9oTf7JM3/0eDJgpa0/FOWrjHzuI=; b=eRXu88He+oJdpcOmb4v/vpIdfzO6WHM0QFCMQu7aEu6zjs5THYygEqq7 0HWX7UN0wA1Mcvf/neFQ+hvzyzLwWHOJos2Msf8D6n5I7A5MTkpFApyJq 1MBJ0jEy/+a+rRCTj4zSATj2lb6juBjSolFl7Oc7M9pGpkkK2/4pmtiwx SNG1PzFzchnSxLsEzVKX3FBDtx/f8GRf/xfGsF1QeFkgF8PoDgy0jTc7r EcbiXFjcVFP6MpYdak5eCGpmvkQRkS5HwJSJJl5YDP5IJoN5KkizwYieS ECZZKv9H0Kh9qvZ6oKGvP8smtmzM6B+886A9eoz17gR/5rMlK2z7v4Mp+ Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10356"; a="261087708" X-IronPort-AV: E=Sophos;i="5.91,248,1647327600"; d="scan'208";a="261087708" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2022 02:27:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,248,1647327600"; d="scan'208";a="526331337" Received: from lkp-server01.sh.intel.com (HELO db63a1be7222) ([10.239.97.150]) by orsmga003.jf.intel.com with ESMTP; 24 May 2022 02:27:14 -0700 Received: from kbuild by db63a1be7222 with local (Exim 4.95) (envelope-from ) id 1ntQor-0001vK-M0; Tue, 24 May 2022 09:27:13 +0000 Date: Tue, 24 May 2022 17:26:58 +0800 From: kernel test robot To: Kees Cook Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: drivers/net/wireless/ath/ath10k/htt.h:1677:2: warning: field within 'struct htt_tx_fetch_ind' is less aligned than 'union htt_tx_fetch_ind::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1677:2)' and is usually due to 'struct htt_tx_fetch_ind' being... Message-ID: <202205241718.VlBCn4Op-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Kees, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 143a6252e1b8ab424b4b293512a97cca7295c182 commit: fa7845cfd53f3b1d3f60efa55db89805595bc045 treewide: Replace open-coded flex arrays in unions date: 7 months ago config: arm-randconfig-r014-20220524 (https://download.01.org/0day-ci/archive/20220524/202205241718.VlBCn4Op-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 10c9ecce9f6096e18222a331c5e7d085bd813f75) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa7845cfd53f3b1d3f60efa55db89805595bc045 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout fa7845cfd53f3b1d3f60efa55db89805595bc045 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/net/wireless/ath/ath10k/wmi-tlv.c:7: In file included from drivers/net/wireless/ath/ath10k/core.h:18: drivers/net/wireless/ath/ath10k/htt.h:721:34: warning: field prefix within 'struct htt_rx_indication' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct htt_rx_indication_prefix prefix; ^ drivers/net/wireless/ath/ath10k/htt.h:742:34: warning: field prefix within 'struct htt_rx_indication_hl' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication_hl' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct htt_rx_indication_prefix prefix; ^ >> drivers/net/wireless/ath/ath10k/htt.h:1677:2: warning: field within 'struct htt_tx_fetch_ind' is less aligned than 'union htt_tx_fetch_ind::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1677:2)' and is usually due to 'struct htt_tx_fetch_ind' being packed, which can lead to unaligned accesses [-Wunaligned-access] union { ^ drivers/net/wireless/ath/ath10k/htt.h:1815:2: warning: field within 'struct htt_resp' is less aligned than 'union htt_resp::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1815:2)' and is usually due to 'struct htt_resp' being packed, which can lead to unaligned accesses [-Wunaligned-access] union { ^ 4 warnings generated. -- In file included from drivers/net/wireless/ath/ath10k/ce.c:8: In file included from drivers/net/wireless/ath/ath10k/hif.h:11: In file included from drivers/net/wireless/ath/ath10k/core.h:18: drivers/net/wireless/ath/ath10k/htt.h:721:34: warning: field prefix within 'struct htt_rx_indication' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct htt_rx_indication_prefix prefix; ^ drivers/net/wireless/ath/ath10k/htt.h:742:34: warning: field prefix within 'struct htt_rx_indication_hl' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication_hl' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct htt_rx_indication_prefix prefix; ^ >> drivers/net/wireless/ath/ath10k/htt.h:1677:2: warning: field within 'struct htt_tx_fetch_ind' is less aligned than 'union htt_tx_fetch_ind::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1677:2)' and is usually due to 'struct htt_tx_fetch_ind' being packed, which can lead to unaligned accesses [-Wunaligned-access] union { ^ drivers/net/wireless/ath/ath10k/htt.h:1815:2: warning: field within 'struct htt_resp' is less aligned than 'union htt_resp::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1815:2)' and is usually due to 'struct htt_resp' being packed, which can lead to unaligned accesses [-Wunaligned-access] union { ^ drivers/net/wireless/ath/ath10k/ce.c:127:1: warning: unused function 'ath10k_get_ring_byte' [-Wunused-function] ath10k_get_ring_byte(unsigned int offset, ^ drivers/net/wireless/ath/ath10k/ce.c:212:1: warning: unused function 'ath10k_ce_shadow_dest_ring_write_index_set' [-Wunused-function] ath10k_ce_shadow_dest_ring_write_index_set(struct ath10k *ar, ^ drivers/net/wireless/ath/ath10k/ce.c:449:20: warning: unused function 'ath10k_ce_error_intr_enable' [-Wunused-function] static inline void ath10k_ce_error_intr_enable(struct ath10k *ar, ^ 7 warnings generated. -- In file included from drivers/net/wireless/ath/ath10k/mac.c:8: In file included from drivers/net/wireless/ath/ath10k/mac.h:11: In file included from drivers/net/wireless/ath/ath10k/core.h:18: drivers/net/wireless/ath/ath10k/htt.h:721:34: warning: field prefix within 'struct htt_rx_indication' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct htt_rx_indication_prefix prefix; ^ drivers/net/wireless/ath/ath10k/htt.h:742:34: warning: field prefix within 'struct htt_rx_indication_hl' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication_hl' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct htt_rx_indication_prefix prefix; ^ >> drivers/net/wireless/ath/ath10k/htt.h:1677:2: warning: field within 'struct htt_tx_fetch_ind' is less aligned than 'union htt_tx_fetch_ind::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1677:2)' and is usually due to 'struct htt_tx_fetch_ind' being packed, which can lead to unaligned accesses [-Wunaligned-access] union { ^ drivers/net/wireless/ath/ath10k/htt.h:1815:2: warning: field within 'struct htt_resp' is less aligned than 'union htt_resp::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1815:2)' and is usually due to 'struct htt_resp' being packed, which can lead to unaligned accesses [-Wunaligned-access] union { ^ drivers/net/wireless/ath/ath10k/mac.c:5942:22: warning: parameter 'changed_flags' set but not used [-Wunused-but-set-parameter] unsigned int changed_flags, ^ 5 warnings generated. vim +1677 drivers/net/wireless/ath/ath10k/htt.h 1670 1671 struct htt_tx_fetch_ind { 1672 u8 pad0; 1673 __le16 fetch_seq_num; 1674 __le32 token; 1675 __le16 num_resp_ids; 1676 __le16 num_records; > 1677 union { 1678 /* ath10k_htt_get_tx_fetch_ind_resp_ids() */ 1679 DECLARE_FLEX_ARRAY(__le32, resp_ids); 1680 DECLARE_FLEX_ARRAY(struct htt_tx_fetch_record, records); 1681 }; 1682 } __packed; 1683 -- 0-DAY CI Kernel Test Service https://01.org/lkp