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

kernel test robot
2024-10-28T14:46:11Z

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@intel.com/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@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410282220.vl7podpG-lkp@intel.com/

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

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