linux-kernel - drivers/leds/leds-turris-omnia.c:438:15: sparse: sparse: cast to restricted _

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Date:   Fri, 1 Dec 2023 22:21:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Marek Behún <kabel@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Lee Jones <lee@...nel.org>
Subject: drivers/leds/leds-turris-omnia.c:438:15: sparse: sparse: cast to
 restricted __le16

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   994d5c58e50e91bb02c7be4a91d5186292a895c8
commit: 43e9082fbccc7df8b2028c1ba040c58cefda703f leds: turris-omnia: Add support for enabling/disabling HW gamma correction
date:   4 weeks ago
config: loongarch-randconfig-r034-20230511 (https://download.01.org/0day-ci/archive/20231201/202312012213.wUNHTGnZ-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20231201/202312012213.wUNHTGnZ-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/202312012213.wUNHTGnZ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/leds/leds-turris-omnia.c:438:15: sparse: sparse: cast to restricted __le16
   drivers/leds/leds-turris-omnia.c:446:16: sparse: sparse: cast to restricted __le16

vim +438 drivers/leds/leds-turris-omnia.c

   426	
   427	static int omnia_mcu_get_features(const struct i2c_client *client)
   428	{
   429		u16 reply;
   430		int err;
   431	
   432		err = omnia_cmd_read_raw(client->adapter, OMNIA_MCU_I2C_ADDR,
   433					 CMD_GET_STATUS_WORD, &reply, sizeof(reply));
   434		if (err < 0)
   435			return err;
   436	
   437		/* Check whether MCU firmware supports the CMD_GET_FEAUTRES command */
 > 438		if (!(le16_to_cpu(reply) & STS_FEATURES_SUPPORTED))
   439			return 0;
   440	
   441		err = omnia_cmd_read_raw(client->adapter, OMNIA_MCU_I2C_ADDR,
   442					 CMD_GET_FEATURES, &reply, sizeof(reply));
   443		if (err < 0)
   444			return err;
   445	
   446		return le16_to_cpu(reply);
   447	}
   448	

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