tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   bbf5c979011a099af5dc76498918ed7df445635b
commit: 00b2e16e006390069480e90478aa8b6e924996d7 mt76: mt7915: add TxBF 
capabilities
date:   5 months ago
config: parisc-randconfig-s032-20201012 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-rc1-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=00b2e16e006390069480e90478aa8b6e924996d7
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 00b2e16e006390069480e90478aa8b6e924996d7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc 

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


"sparse warnings: (new ones prefixed by >>)"
>> drivers/net/wireless/mediatek/mt76/mt7915/init.c:339:26: sparse: sparse: 
>> cast from restricted __le16
>> drivers/net/wireless/mediatek/mt76/mt7915/init.c:339:26: sparse: sparse: 
>> cast from restricted __le16
>> drivers/net/wireless/mediatek/mt76/mt7915/init.c:339:26: sparse: sparse: 
>> cast from restricted __le16
>> drivers/net/wireless/mediatek/mt76/mt7915/init.c:339:26: sparse: sparse: 
>> cast from restricted __le16
>> drivers/net/wireless/mediatek/mt76/mt7915/init.c:339:26: sparse: sparse: 
>> cast from restricted __le16
>> drivers/net/wireless/mediatek/mt76/mt7915/init.c:339:26: sparse: sparse: 
>> cast from restricted __le16

vim +339 drivers/net/wireless/mediatek/mt76/mt7915/init.c

   296  
   297          elem->phy_cap_info[3] &= ~IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
   298          elem->phy_cap_info[4] &= ~IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
   299  
   300          c = 
IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK |
   301              
IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK;
   302          elem->phy_cap_info[5] &= ~c;
   303  
   304          c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB |
   305              IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB;
   306          elem->phy_cap_info[6] &= ~c;
   307  
   308          elem->phy_cap_info[7] &= ~IEEE80211_HE_PHY_CAP7_MAX_NC_MASK;
   309  
   310          c = IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
   311              IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
   312              IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
   313          elem->phy_cap_info[2] |= c;
   314  
   315          c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
   316              IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
   317              IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
   318          elem->phy_cap_info[4] |= c;
   319  
   320          /* do not support NG16 due to spec D4.0 changes subcarrier idx 
*/
   321          c = IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
   322              IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU;
   323  
   324          if (vif == NL80211_IFTYPE_STATION)
   325                  c |= IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO;
   326  
   327          elem->phy_cap_info[6] |= c;
   328  
   329          if (nss < 2)
   330                  return;
   331  
   332          if (vif != NL80211_IFTYPE_AP)
   333                  return;
   334  
   335          elem->phy_cap_info[3] |= IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
   336          elem->phy_cap_info[4] |= IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
   337  
   338          /* num_snd_dim */
 > 339          c = (nss - 1) | (max_t(int, mcs->tx_mcs_160, 1) << 3);
   340          elem->phy_cap_info[5] |= c;
   341  
   342          c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB |
   343              IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB;
   344          elem->phy_cap_info[6] |= c;
   345  
   346          /* the maximum cap is 4 x 3, (Nr, Nc) = (3, 2) */
   347          elem->phy_cap_info[7] |= min_t(int, nss - 1, 2) << 3;
   348  }
   349  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

Attachment: .config.gz
Description: application/gzip

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