tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fb893de323e2d39f7a1f6df425703a2edbdf56ea commit: 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4 iwlwifi: mvm: Block 26-tone RU OFDMA transmissions date: 11 months ago config: i386-randconfig-s001-20200812 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-168-g9554805c-dirty git checkout 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c: note: in included file (through drivers/net/wireless/intel/iwlwifi/mvm/..//fw/img.h, drivers/net/wireless/intel/iwlwifi/mvm/..//iwl-trans.h, ...): drivers/net/wireless/intel/iwlwifi/mvm/..//fw/file.h:330:19: sparse: sparse: mixed bitwiseness drivers/net/wireless/intel/iwlwifi/mvm/..//fw/file.h:475:19: sparse: sparse: mixed bitwiseness drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c:3223:63: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected unsigned char const [usertype] *ies @@ got unsigned char const [noderef] <asn:4> * @@ drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c:3223:63: sparse: got unsigned char const [noderef] <asn:4> * drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c: note: in included file (through include/linux/bitops.h, include/linux/kernel.h): arch/x86/include/asm/bitops.h:78:37: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f) arch/x86/include/asm/bitops.h:78:37: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f) arch/x86/include/asm/bitops.h:78:37: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f) vim +3223 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c 3215 3216 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3217 struct cfg80211_bss *bss, 3218 void *_data) 3219 { 3220 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3221 const struct element *elem; 3222 3225 3226 if (!elem || elem->datalen < 10 || 3227 !(elem->data[10] & 3228 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3229 data->tolerated = false; 3230 } 3231 } 3232 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org