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

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Message-ID: <202410282041.JgAO0LV0-lkp@intel.com>
Date: Mon, 28 Oct 2024 20:51:13 +0800
From: kernel test robot <lkp@...el.com>
To: Troy Mitchell <troymitchell988@...il.com>, andi.shyti@...nel.org,
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, troymitchell988@...il.com,
	linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] i2c: spacemit: add support for SpacemiT K1 SoC

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: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20241028/202410282041.JgAO0LV0-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241028/202410282041.JgAO0LV0-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410282041.JgAO0LV0-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/i2c/busses/i2c-k1.c: In function 'spacemit_i2c_is_last_msg':
>> drivers/i2c/busses/i2c-k1.c:340:12: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
     340 |         if (i2c->dir == DIR_READ)
         |            ^

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]


vim +/else +340 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