linux-kernel - Re: [PATCH v3 3/3] soc: nuvoton: add NPCM BPC driver

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Message-ID: <202312150632.EzPYbn6l-lkp@intel.com>
Date: Fri, 15 Dec 2023 06:41:46 +0800
From: kernel test robot <lkp@...el.com>
To: Tomer Maimon <tmaimon77@...il.com>, arnd@...db.de,
	pmenzel@...gen.mpg.de, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	avifishman70@...il.com, tali.perry1@...il.com, joel@....id.au,
	venture@...gle.com, yuenn@...gle.com, benjaminfair@...gle.com,
	j.neuschaefer@....net
Cc: oe-kbuild-all@...ts.linux.dev, openbmc@...ts.ozlabs.org,
	linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, Tomer Maimon <tmaimon77@...il.com>
Subject: Re: [PATCH v3 3/3] soc: nuvoton: add NPCM BPC driver

Hi Tomer,

kernel test robot noticed the following build warnings:

[auto build test WARNING on soc/for-next]
[also build test WARNING on robh/for-next linus/master v6.7-rc5 next-20231214]
[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/Tomer-Maimon/dt-bindings-soc-nuvoton-Add-NPCM-BPC/20231214-030714
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link:    https://lore.kernel.org/r/20231213190528.3751583-4-tmaimon77%40gmail.com
patch subject: [PATCH v3 3/3] soc: nuvoton: add NPCM BPC driver
config: arm64-randconfig-r123-20231215 (https://download.01.org/0day-ci/archive/20231215/202312150632.EzPYbn6l-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20231215/202312150632.EzPYbn6l-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/202312150632.EzPYbn6l-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/soc/nuvoton/npcm-bpc.c:105:25: sparse: sparse: cast to restricted __poll_t
   drivers/soc/nuvoton/npcm-bpc.c:108:26: sparse: sparse: cast to restricted __poll_t

vim +105 drivers/soc/nuvoton/npcm-bpc.c

    97	
    98	static __poll_t npcm_bpc_poll(struct file *file, struct poll_table_struct *pt)
    99	{
   100		struct npcm_bpc_channel *chan = npcm_file_to_ch(file);
   101		__poll_t mask = 0;
   102	
   103		poll_wait(file, &chan->wq, pt);
   104		if (!kfifo_is_empty(&chan->fifo))
 > 105			mask = (__poll_t)POLLIN;
   106	
   107		if (chan->host_reset) {
   108			mask |= (__poll_t)POLLHUP;
   109			chan->host_reset = false;
   110		}
   111	
   112		return mask;
   113	}
   114	

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