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Date:   Fri, 6 May 2022 21:28:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mordechay Goodstein <mordechay.goodstein@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Luca Coelho <luciano.coelho@...el.com>
Subject: drivers/net/wireless/intel/iwlwifi/fw/api/rx.h:442:2: warning: field
  within 'struct iwl_rx_mpdu_desc_v1' is less aligned than 'union
 iwl_rx_mpdu_desc_v1::(anonymous at
 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h:442:2)' and is usually due to
 'struct i...

Hi Mordechay,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   fe27d189e3f42e31d3c8223d5daed7285e334c5e
commit: 9cd243f24ec1960403de5f24f45155af24d94b13 iwlwifi: move iwl_configure_rxq to be used by other op_modes
date:   1 year, 1 month ago
config: arm-randconfig-r034-20220506 (https://download.01.org/0day-ci/archive/20220506/202205062156.2QJADyrL-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e004fb787698440a387750db7f8028e7cb14cfc)
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=9cd243f24ec1960403de5f24f45155af24d94b13
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 9cd243f24ec1960403de5f24f45155af24d94b13
        # 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/wireless/ath/ath10k/ drivers/net/wireless/intel/iwlwifi/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from drivers/net/wireless/intel/iwlwifi/fw/init.c:13:
>> drivers/net/wireless/intel/iwlwifi/fw/api/rx.h:442:2: warning: field  within 'struct iwl_rx_mpdu_desc_v1' is less aligned than 'union iwl_rx_mpdu_desc_v1::(anonymous at drivers/net/wireless/intel/iwlwifi/fw/api/rx.h:442:2)' and is usually due to 'struct iwl_rx_mpdu_desc_v1' being packed, which can lead to unaligned accesses [-Wunaligned-access]
           union {
           ^
   1 warning generated.


vim +442 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h

8a6171a7b601e3 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Luca Coelho    2018-06-26  383  
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  384  /**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  385   * struct iwl_rx_mpdu_desc_v1 - RX MPDU descriptor
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  386   */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  387  struct iwl_rx_mpdu_desc_v1 {
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  388  	/* DW7 - carries rss_hash only when rpa_en == 1 */
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  389  	union {
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  390  		/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  391  		 * @rss_hash: RSS hash value
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  392  		 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  393  		__le32 rss_hash;
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  394  
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  395  		/**
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  396  		 * @phy_data2: depends on info type (see @phy_data1)
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  397  		 */
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  398  		__le32 phy_data2;
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  399  	};
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  400  
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  401  	/* DW8 - carries filter_match only when rpa_en == 1 */
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  402  	union {
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  403  		/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  404  		 * @filter_match: filter match value
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  405  		 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  406  		__le32 filter_match;
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  407  
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  408  		/**
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  409  		 * @phy_data3: depends on info type (see @phy_data1)
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  410  		 */
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  411  		__le32 phy_data3;
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  412  	};
dabf9844385885 drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Johannes Berg  2018-04-26  413  
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  414  	/* DW9 */
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  415  	/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  416  	 * @rate_n_flags: RX rate/flags encoding
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  417  	 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  418  	__le32 rate_n_flags;
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  419  	/* DW10 */
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  420  	/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  421  	 * @energy_a: energy chain A
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  422  	 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  423  	u8 energy_a;
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  424  	/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  425  	 * @energy_b: energy chain B
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  426  	 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  427  	u8 energy_b;
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  428  	/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  429  	 * @channel: channel number
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  430  	 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  431  	u8 channel;
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  432  	/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  433  	 * @mac_context: MAC context mask
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  434  	 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  435  	u8 mac_context;
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  436  	/* DW11 */
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  437  	/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  438  	 * @gp2_on_air_rise: GP2 timer value on air rise (INA)
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  439  	 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  440  	__le32 gp2_on_air_rise;
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  441  	/* DW12 & DW13 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05 @442  	union {
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  443  		/**
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  444  		 * @tsf_on_air_rise:
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  445  		 * TSF value on air rise (INA), only valid if
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  446  		 * %IWL_RX_MPDU_PHY_TSF_OVERLOAD isn't set
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  447  		 */
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  448  		__le64 tsf_on_air_rise;
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  449  
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  450  		struct {
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  451  			/**
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  452  			 * @phy_data0: depends on info_type, see @phy_data1
6857df8c10e698 drivers/net/wireless/intel/iwlwifi/mvm/fw-api-rx.h Johannes Berg  2017-03-15  453  			 */
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  454  			__le32 phy_data0;
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  455  			/**
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  456  			 * @phy_data1: valid only if
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  457  			 * %IWL_RX_MPDU_PHY_TSF_OVERLOAD is set,
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  458  			 * see &enum iwl_rx_phy_data1.
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  459  			 */
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  460  			__le32 phy_data1;
bdf180c8d375ee drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Shaul Triebitz 2018-07-02  461  		};
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  462  	};
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  463  } __packed;
18ead597daa17a drivers/net/wireless/intel/iwlwifi/fw/api/rx.h     Golan Ben Ami  2018-02-05  464  

:::::: The code at line 442 was first introduced by commit
:::::: 18ead597daa17a557249cf4b2f494361d836ed52 iwlwifi: support new rx_mpdu_desc api

:::::: TO: Golan Ben Ami <golan.ben.ami@...el.com>
:::::: CC: Luca Coelho <luciano.coelho@...el.com>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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