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From: kernel test robot <lkp@intel.com>
To: Kees Cook <keescook@chromium.org>
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...
Date: Thu, 4 Aug 2022 04:21:06 +0800	[thread overview]
Message-ID: <202208040445.VKxXkc0p-lkp@intel.com> (raw)

Hi Kees,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f00654007fe1c154dafbdc1f5953c132e8c27c38
commit: fa7845cfd53f3b1d3f60efa55db89805595bc045 treewide: Replace open-coded flex arrays in unions
date:   10 months ago
config: arm-randconfig-r014-20220801 (https://download.01.org/0day-ci/archive/20220804/202208040445.VKxXkc0p-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e)
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 drivers/net/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

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

             reply	other threads:[~2022-08-03 20:21 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-03 20:21 kernel test robot [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-09-03 10:08 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 kernel test robot
2022-09-07 23:59 ` Kees Cook
2022-09-07 23:59   ` Kees Cook
2022-06-08 18:14 kernel test robot
2022-05-24  9:26 kernel test robot
2022-04-03  1:34 kernel test robot
2022-02-07 11:02 kernel test robot
2022-02-07 11:02 ` kernel test robot
2022-01-27 20:40 kernel test robot
2022-01-27 20:40 ` kernel test robot

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