linux-kernel - Re: [PATCH v4 2/2] iio: humidity: Add support for ENS210

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Message-ID: <202407211229.nP7WkSo5-lkp@intel.com>
Date: Sun, 21 Jul 2024 13:28:16 +0800
From: kernel test robot <lkp@...el.com>
To: Joshua Felmeden <jfelmeden@...goodpenguin.co.uk>,
	Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] iio: humidity: Add support for ENS210

Hi Joshua,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 1ebab783647a9e3bf357002d5c4ff060c8474a0a]

url:    https://github.com/intel-lab-lkp/linux/commits/Joshua-Felmeden/dt-bindings-iio-humidity-add-ENS210-sensor-family/20240719-210648
base:   1ebab783647a9e3bf357002d5c4ff060c8474a0a
patch link:    https://lore.kernel.org/r/20240719-ens21x-v4-2-6044e48a376a%40thegoodpenguin.co.uk
patch subject: [PATCH v4 2/2] iio: humidity: Add support for ENS210
config: x86_64-randconfig-122-20240721 (https://download.01.org/0day-ci/archive/20240721/202407211229.nP7WkSo5-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240721/202407211229.nP7WkSo5-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/202407211229.nP7WkSo5-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/iio/humidity/ens210.c:88:26: sparse: sparse: restricted __be32 degrades to integer
>> drivers/iio/humidity/ens210.c:88:53: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __be32 [usertype] val_be @@     got unsigned int @@
   drivers/iio/humidity/ens210.c:88:53: sparse:     expected restricted __be32 [usertype] val_be
   drivers/iio/humidity/ens210.c:88:53: sparse:     got unsigned int

vim +88 drivers/iio/humidity/ens210.c

    84	
    85	/* calculate 17-bit crc7 */
    86	static u8 ens210_crc7(u32 val)
    87	{
  > 88		__be32 val_be = (cpu_to_be32(val & 0x1ffff) >> 0x8);
    89	
    90		return crc7_be(0xde, (u8 *)&val_be, 3) >> 1;
    91	}
    92	

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