Re: [PATCH v2 2/2] i2c: spacemit: add support for SpacemiT K1 SoC

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Hi Troy,

kernel test robot noticed the following build warnings:

[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on robh/for-next linus/master v6.12-rc5 next-20241028]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Troy-Mitchell/dt-bindings-i2c-spacemit-add-support-for-K1-SoC/20241028-133452
base:   https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link:    https://lore.kernel.org/r/20241028053220.346283-3-TroyMitchell988%40gmail.com
patch subject: [PATCH v2 2/2] i2c: spacemit: add support for SpacemiT K1 SoC
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241028/202410282220.vl7podpG-lkp@xxxxxxxxx/config)
compiler: clang version 19.1.2 (https://github.com/llvm/llvm-project 7ba7d8e2f7b6445b60679da826210cdde29eaf8b)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241028/202410282220.vl7podpG-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410282220.vl7podpG-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from drivers/i2c/busses/i2c-k1.c:7:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     504 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     505 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     511 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     512 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     524 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     525 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-k1.c:343:2: warning: add explicit braces to avoid dangling else [-Wdangling-else]
     343 |         else if (i2c->dir == DIR_WRITE)
         |         ^
   5 warnings generated.


vim +343 drivers/i2c/busses/i2c-k1.c

   337	
   338	static int spacemit_i2c_is_last_msg(struct spacemit_i2c_dev *i2c)
   339	{
   340		if (i2c->dir == DIR_READ)
   341			if (i2c->unprocessed == 1 && i2c->msg_idx == i2c->msg_num - 1)
   342				return 1;
 > 343		else if (i2c->dir == DIR_WRITE)
   344			if (!i2c->unprocessed && i2c->msg_idx == i2c->msg_num - 1)
   345				return 1;
   346	
   347		return 0;
   348	}
   349	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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