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* [frank-w-bpi-r2-4.14:5.14-rc 6/24] drivers/misc/mediatek/btif/common/plat_inc/plat_common.h:64:9: warning: function 'hal_log_print' might be a candidate for 'gnu_printf' format attribute
@ 2021-08-21 16:54 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-08-21 16:54 UTC (permalink / raw)
  To: kbuild-all

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tree:   https://github.com/frank-w/BPI-R2-4.14 5.14-rc
head:   15ab19c94d88070dd93ad282b83ff856be6092fc
commit: 6c7a57f4d7a96ee09d6aacbdac04d2f3b3da24f6 [6/24] mt6625l: include wifi-code
config: arm-allyesconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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
        # https://github.com/frank-w/BPI-R2-4.14/commit/6c7a57f4d7a96ee09d6aacbdac04d2f3b3da24f6
        git remote add frank-w-bpi-r2-4.14 https://github.com/frank-w/BPI-R2-4.14
        git fetch --no-tags frank-w-bpi-r2-4.14 5.14-rc
        git checkout 6c7a57f4d7a96ee09d6aacbdac04d2f3b3da24f6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm 

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

All warnings (new ones prefixed by >>):

   In file included from drivers/misc/mediatek/btif/common/plat_inc/btif_pub.h:17,
                    from drivers/misc/mediatek/btif/common/mtk_btif.c:37:
   drivers/misc/mediatek/btif/common/plat_inc/plat_common.h: In function 'hal_log_print':
>> drivers/misc/mediatek/btif/common/plat_inc/plat_common.h:64:9: warning: function 'hal_log_print' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
      64 |         vsnprintf(temp_sring, DBG_LOG_STR_SIZE, str, args);
         |         ^~~~~~~~~
   drivers/misc/mediatek/btif/common/mtk_btif.c: In function 'mtk_btif_restore_noirq':
>> drivers/misc/mediatek/btif/common/mtk_btif.c:379:13: warning: variable 'i_ret' set but not used [-Wunused-but-set-variable]
     379 |         int i_ret = 0;
         |             ^~~~~
   drivers/misc/mediatek/btif/common/mtk_btif.c: In function 'flag_store':
>> drivers/misc/mediatek/btif/common/mtk_btif.c:773:13: warning: variable 'result' set but not used [-Wunused-but-set-variable]
     773 |         int result = 0;
         |             ^~~~~~
   drivers/misc/mediatek/btif/common/mtk_btif.c: In function 'btif_log_buf_dmp_out':
>> drivers/misc/mediatek/btif/common/mtk_btif.c:3029:24: warning: variable 'p_buf' set but not used [-Wunused-but-set-variable]
    3029 |         unsigned char *p_buf = NULL;
         |                        ^~~~~
--
   In file included from drivers/misc/mediatek/btif/common/plat_inc/btif_pub.h:17,
                    from drivers/misc/mediatek/btif/common/inc/mtk_btif.h:37,
                    from drivers/misc/mediatek/btif/common/mtk_btif_exp.c:20:
   drivers/misc/mediatek/btif/common/plat_inc/plat_common.h: In function 'hal_log_print':
>> drivers/misc/mediatek/btif/common/plat_inc/plat_common.h:64:9: warning: function 'hal_log_print' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
      64 |         vsnprintf(temp_sring, DBG_LOG_STR_SIZE, str, args);
         |         ^~~~~~~~~
--
   In file included from drivers/misc/mediatek/btif/common/plat_inc/btif_dma_pub.h:19,
                    from drivers/misc/mediatek/btif/common/plat_inc/btif_dma_priv.h:18,
                    from drivers/misc/mediatek/btif/common/btif_dma_plat.c:22:
   drivers/misc/mediatek/btif/common/plat_inc/plat_common.h: In function 'hal_log_print':
>> drivers/misc/mediatek/btif/common/plat_inc/plat_common.h:64:9: warning: function 'hal_log_print' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
      64 |         vsnprintf(temp_sring, DBG_LOG_STR_SIZE, str, args);
         |         ^~~~~~~~~
   drivers/misc/mediatek/btif/common/btif_dma_plat.c: In function 'hal_dma_pm_ops':
>> drivers/misc/mediatek/btif/common/btif_dma_plat.c:1313:38: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
    1313 |                         unsigned int flag = 0;
         |                                      ^~~~
--
   In file included from drivers/misc/mediatek/btif/common/plat_inc/btif_pub.h:17,
                    from drivers/misc/mediatek/btif/common/btif_plat.c:21:
   drivers/misc/mediatek/btif/common/plat_inc/plat_common.h: In function 'hal_log_print':
>> drivers/misc/mediatek/btif/common/plat_inc/plat_common.h:64:9: warning: function 'hal_log_print' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
      64 |         vsnprintf(temp_sring, DBG_LOG_STR_SIZE, str, args);
         |         ^~~~~~~~~
   drivers/misc/mediatek/btif/common/btif_plat.c: In function 'hal_btif_hw_init':
>> drivers/misc/mediatek/btif/common/btif_plat.c:516:39: warning: implicit conversion from 'enum <anonymous>' to 'ENUM_BTIF_MODE' {aka 'enum _ENUM_BTIF_MODE_'} [-Wenum-conversion]
     516 |         hal_btif_tx_mode_ctrl(p_btif, false);
         |                                       ^~~~~
   drivers/misc/mediatek/btif/common/btif_plat.c:518:39: warning: implicit conversion from 'enum <anonymous>' to 'ENUM_BTIF_MODE' {aka 'enum _ENUM_BTIF_MODE_'} [-Wenum-conversion]
     518 |         hal_btif_rx_mode_ctrl(p_btif, false);
         |                                       ^~~~~
   drivers/misc/mediatek/btif/common/btif_plat.c: In function 'hal_btif_pm_ops':
>> drivers/misc/mediatek/btif/common/btif_plat.c:1343:38: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
    1343 |                         unsigned int flag = 0;
         |                                      ^~~~


vim +64 drivers/misc/mediatek/btif/common/plat_inc/plat_common.h

eca6cb9d1200e7 Frank Wunderlich 2021-07-12  56  
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  57  /*Log defination*/
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  58  static int hal_log_print(const char *str, ...)
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  59  {
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  60  	va_list args;
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  61  	char temp_sring[DBG_LOG_STR_SIZE];
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  62  
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  63  	va_start(args, str);
eca6cb9d1200e7 Frank Wunderlich 2021-07-12 @64  	vsnprintf(temp_sring, DBG_LOG_STR_SIZE, str, args);
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  65  	va_end(args);
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  66  
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  67  	pr_err("%s", temp_sring);
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  68  
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  69  	return 0;
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  70  }
eca6cb9d1200e7 Frank Wunderlich 2021-07-12  71  

:::::: The code at line 64 was first introduced by commit
:::::: eca6cb9d1200e774a42a7dd581e3ce064081bdec mt6625l: add driver folder from 5.13

:::::: TO: Frank Wunderlich <frank-w@public-files.de>
:::::: CC: Frank Wunderlich <frank-w@public-files.de>

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

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2021-08-21 16:54 [frank-w-bpi-r2-4.14:5.14-rc 6/24] drivers/misc/mediatek/btif/common/plat_inc/plat_common.h:64:9: warning: function 'hal_log_print' might be a candidate for 'gnu_printf' format attribute kernel test robot

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