From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (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 E6AA5468B for ; Sun, 3 Apr 2022 01:35:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648949715; x=1680485715; h=date:from:to:cc:subject:message-id:mime-version; bh=A8HJbntzu5cdc5e0l+WDDZIdPnA/GixLfm7YcmrJla0=; b=ZPodj0gvszDbrt5FQXHM14pPN1HUDrGMLx8fL8biX5/V+lmS2/ocJ7j7 ph8fYgMXusxa75V6BEf21xw57fVf2UZdcvL/KkaRmGB4miTya6dVPMCYv y/IjQaCKoPtHvpFJJY6fdLyAoHBq17U05l5+B0UDbyQ8JRBbvqi3fNRgo NFtwu0vhUR3iLA5dNjkgQ22cWjNp1IjdOD72x+NdzcWWsi4Sqgzmsy7hn 6VDFiJzvv58hoSGpKhj0eX4jpk6k5Q9pqALaLQwI2wY5lDy91aROapUrz HOeW5Ubmn64VQvXB3Z+77AB8rF6lvyw3HvRBT3IlJuGnK3+i8ZQofVtY9 g==; X-IronPort-AV: E=McAfee;i="6200,9189,10305"; a="240285087" X-IronPort-AV: E=Sophos;i="5.90,231,1643702400"; d="scan'208";a="240285087" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Apr 2022 18:35:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,231,1643702400"; d="scan'208";a="721280408" Received: from lkp-server02.sh.intel.com (HELO a44fdfb70b94) ([10.239.97.151]) by orsmga005.jf.intel.com with ESMTP; 02 Apr 2022 18:35:13 -0700 Received: from kbuild by a44fdfb70b94 with local (Exim 4.95) (envelope-from ) id 1nap96-0000cl-QE; Sun, 03 Apr 2022 01:35:12 +0000 Date: Sun, 3 Apr 2022 09:34:43 +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: <202204030906.gxzheF5s-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 User-Agent: Mutt/1.10.1 (2018-07-13) Hi Kees, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: be2d3ecedd9911fbfd7e55cc9ceac5f8b79ae4cf commit: fa7845cfd53f3b1d3f60efa55db89805595bc045 treewide: Replace open-coded flex arrays in unions date: 6 months ago config: arm-randconfig-c002-20220403 (https://download.01.org/0day-ci/archive/20220403/202204030906.gxzheF5s-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c4a1b07d0979e7ff20d7d541af666d822d66b566) 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 to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/net/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): 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. -- In file included from drivers/net/wireless/ath/ath10k/debug.c:14: 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. 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