tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   fe07bfda2fb9cdef8a4d4008a409bb02f35f1bd8
commit: a86821069e87755d8f0f98a9bc3e848098dd28e8 iwlwifi: phy-ctxt: add new API 
VER 3 for phy context cmd
date:   5 months ago
config: mips-randconfig-r011-20210301 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
b077d82b00d81934c7c27ac89dd8b0e7f448bded)
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 mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a86821069e87755d8f0f98a9bc3e848098dd28e8
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout a86821069e87755d8f0f98a9bc3e848098dd28e8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All warnings (new ones prefixed by >>):

   arch/mips/include/asm/sync.h:147:34: note: expanded from macro 
'__SYNC_loongson3_war'
   # define __SYNC_loongson3_war   (1 << 31)
                                      ^
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:18:
   In file included from include/linux/if_ether.h:19:
   In file included from include/linux/skbuff.h:28:
   In file included from include/net/checksum.h:22:
   arch/mips/include/asm/checksum.h:195:9: error: unsupported inline asm: input 
with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned 
int')
           : "0" ((__force unsigned long)daddr),
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:18:
   In file included from include/linux/if_ether.h:19:
   In file included from include/linux/skbuff.h:31:
   In file included from include/linux/dma-mapping.h:7:
   In file included from include/linux/device.h:16:
   In file included from include/linux/energy_model.h:10:
   include/linux/sched/topology.h:254:9: error: implicit declaration of 
function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration]
           return cpu_to_node(task_cpu(p));
                  ^
   arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from 
macro 'cpu_to_node'
   #define cpu_to_node(cpu)        (cpu_logical_map(cpu) >> 2)
                                    ^
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:20:
   In file included from include/linux/ieee80211.h:20:
   In file included from include/linux/etherdevice.h:21:
   include/linux/netdevice.h:554:11: warning: converting the result of '<<' to 
a boolean always evaluates to true [-Wtautological-constant-compare]
           } while (cmpxchg(&n->state, val, new) != val);
                    ^
   arch/mips/include/asm/cmpxchg.h:194:7: note: expanded from macro 'cmpxchg'
           if (!__SYNC_loongson3_war)                                      \
                ^
   arch/mips/include/asm/sync.h:147:34: note: expanded from macro 
'__SYNC_loongson3_war'
   # define __SYNC_loongson3_war   (1 << 31)
                                      ^
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:20:
   In file included from include/linux/ieee80211.h:20:
   In file included from include/linux/etherdevice.h:21:
   include/linux/netdevice.h:554:11: warning: converting the result of '<<' to 
a boolean always evaluates to true [-Wtautological-constant-compare]
   arch/mips/include/asm/cmpxchg.h:204:7: note: expanded from macro 'cmpxchg'
           if (!__SYNC_loongson3_war)                                      \
                ^
   arch/mips/include/asm/sync.h:147:34: note: expanded from macro 
'__SYNC_loongson3_war'
   # define __SYNC_loongson3_war   (1 << 31)
                                      ^
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:22:
   In file included from include/net/codel.h:48:
   In file included from include/net/inet_ecn.h:9:
   In file included from include/net/inet_sock.h:22:
   In file included from include/net/sock.h:61:
   include/linux/poll.h:142:27: warning: division by zero is undefined 
[-Wdivision-by-zero]
                   M(RDNORM) | M(RDBAND) | M(WRNORM) | M(WRBAND) |
                                           ^~~~~~~~~
   include/linux/poll.h:140:32: note: expanded from macro 'M'
   #define M(X) (__force __poll_t)__MAP(val, POLL##X, (__force __u16)EPOLL##X)
                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/poll.h:126:51: note: expanded from macro '__MAP'
           (from < to ? (v & from) * (to/from) : (v & from) / (from/to))
                                                            ^ ~~~~~~~~~
   include/linux/poll.h:142:39: warning: division by zero is undefined 
[-Wdivision-by-zero]
                   M(RDNORM) | M(RDBAND) | M(WRNORM) | M(WRBAND) |
                                                       ^~~~~~~~~
   include/linux/poll.h:140:32: note: expanded from macro 'M'
   #define M(X) (__force __poll_t)__MAP(val, POLL##X, (__force __u16)EPOLL##X)
                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/poll.h:126:51: note: expanded from macro '__MAP'
           (from < to ? (v & from) * (to/from) : (v & from) / (from/to))
                                                            ^ ~~~~~~~~~
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:22:
   In file included from include/net/codel.h:48:
   In file included from include/net/inet_ecn.h:9:
   In file included from include/net/inet_sock.h:22:
   include/net/sock.h:1969:12: warning: converting the result of '<<' to a 
boolean always evaluates to true [-Wtautological-constant-compare]
           old_dst = xchg((__force struct dst_entry **)&sk->sk_dst_cache, dst);
                     ^
   arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg'
           if (!__SYNC_loongson3_war)                                      \
                ^
   arch/mips/include/asm/sync.h:147:34: note: expanded from macro 
'__SYNC_loongson3_war'
   # define __SYNC_loongson3_war   (1 << 31)
                                      ^
   In file included from drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:64:
   In file included from include/net/mac80211.h:22:
   In file included from include/net/codel.h:48:
   In file included from include/net/inet_ecn.h:9:
   In file included from include/net/inet_sock.h:22:
   include/net/sock.h:2219:8: warning: converting the result of '<<' to a 
boolean always evaluates to true [-Wtautological-constant-compare]
           err = xchg(&sk->sk_err, 0);
                 ^
   arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg'
           if (!__SYNC_loongson3_war)                                      \
                ^
   arch/mips/include/asm/sync.h:147:34: note: expanded from macro 
'__SYNC_loongson3_war'
   # define __SYNC_loongson3_war   (1 << 31)
                                      ^
>> drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:183:37: warning: taking 
>> address of packed member 'rxchain_info' of class or structure 
>> 'iwl_phy_context_cmd_tail' may result in an unaligned pointer value 
>> [-Waddress-of-packed-member]
           iwl_mvm_phy_ctxt_set_rxchain(mvm, &tail->rxchain_info,
                                              ^~~~~~~~~~~~~~~~~~
>> drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c:206:37: warning: taking 
>> address of packed member 'rxchain_info' of class or structure 
>> 'iwl_phy_context_cmd' may result in an unaligned pointer value 
>> [-Waddress-of-packed-member]
           iwl_mvm_phy_ctxt_set_rxchain(mvm, &cmd->rxchain_info,
                                              ^~~~~~~~~~~~~~~~~
   20 warnings and 5 errors generated.


vim +183 drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c

   168  
   169  /*
   170   * Add the phy configuration to the PHY context command
   171   */
   172  static void iwl_mvm_phy_ctxt_cmd_data_v1(struct iwl_mvm *mvm,
   173                                           struct iwl_phy_context_cmd_v1 
*cmd,
   174                                           struct cfg80211_chan_def 
*chandef,
   175                                           u8 chains_static, u8 
chains_dynamic)
   176  {
   177          struct iwl_phy_context_cmd_tail *tail =
   178                  iwl_mvm_chan_info_cmd_tail(mvm, &cmd->ci);
   179  
   180          /* Set the channel info data */
   181          iwl_mvm_set_chan_info_chandef(mvm, &cmd->ci, chandef);
   182  
 > 183          iwl_mvm_phy_ctxt_set_rxchain(mvm, &tail->rxchain_info,
   184                                       chains_static, chains_dynamic);
   185  
   186          tail->txchain_info = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
   187  }
   188  
   189  /*
   190   * Add the phy configuration to the PHY context command
   191   */
   192  static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
   193                                        struct iwl_phy_context_cmd *cmd,
   194                                        struct cfg80211_chan_def *chandef,
   195                                        u8 chains_static, u8 
chains_dynamic)
   196  {
   197          if (chandef->chan->band == NL80211_BAND_2GHZ ||
   198              !iwl_mvm_is_cdb_supported(mvm))
   199                  cmd->lmac_id = cpu_to_le32(IWL_LMAC_24G_INDEX);
   200          else
   201                  cmd->lmac_id = cpu_to_le32(IWL_LMAC_5G_INDEX);
   202  
   203          /* Set the channel info data */
   204          iwl_mvm_set_chan_info_chandef(mvm, &cmd->ci, chandef);
   205  
 > 206          iwl_mvm_phy_ctxt_set_rxchain(mvm, &cmd->rxchain_info,
   207                                       chains_static, chains_dynamic);
   208  }
   209  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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