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Sun, 19 Nov 2023 20:38:24 +0000 Date: Mon, 20 Nov 2023 04:37:31 +0800 From: kernel test robot To: Nathan Chancellor Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Michael Ellerman Subject: drivers/macintosh/windfarm_lm75_sensor.c:70:21: sparse: sparse: cast to restricted __le16 Message-ID: <202311200432.ia1Xs5Jj-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 037266a5f7239ead1530266f7d7af153d2a867fa commit: 748ea32d2dbd813d3bd958117bde5191182f909a macintosh: windfarm: Use unsigned type for 1-bit bitfields date: 9 months ago config: powerpc64-randconfig-r121-20231119 (https://download.01.org/0day-ci/archive/20231120/202311200432.ia1Xs5Jj-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231120/202311200432.ia1Xs5Jj-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202311200432.ia1Xs5Jj-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/macintosh/windfarm_lm75_sensor.c:70:21: sparse: sparse: cast to restricted __le16 vim +70 drivers/macintosh/windfarm_lm75_sensor.c 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 42 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 43 static int wf_lm75_get(struct wf_sensor *sr, s32 *value) 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 44 { 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 45 struct wf_lm75_sensor *lm = wf_to_lm75(sr); 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 46 s32 data; 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 47 351ca3e3119792 Jean Delvare 2009-06-15 48 if (lm->i2c == NULL) 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 49 return -ENODEV; 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 50 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 51 /* Init chip if necessary */ 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 52 if (!lm->inited) { 351ca3e3119792 Jean Delvare 2009-06-15 53 u8 cfg_new, cfg = (u8)i2c_smbus_read_byte_data(lm->i2c, 1); 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 54 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 55 DBG("wf_lm75: Initializing %s, cfg was: %02x\n", 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 56 sr->name, cfg); 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 57 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 58 /* clear shutdown bit, keep other settings as left by 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 59 * the firmware for now 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 60 */ 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 61 cfg_new = cfg & ~0x01; 351ca3e3119792 Jean Delvare 2009-06-15 62 i2c_smbus_write_byte_data(lm->i2c, 1, cfg_new); 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 63 lm->inited = 1; 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 64 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 65 /* If we just powered it up, let's wait 200 ms */ 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 66 msleep(200); 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 67 } 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 68 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 69 /* Read temperature register */ 351ca3e3119792 Jean Delvare 2009-06-15 @70 data = (s32)le16_to_cpu(i2c_smbus_read_word_data(lm->i2c, 0)); 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 71 data <<= 8; 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 72 *value = data; 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 73 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 74 return 0; 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 75 } 75722d3992f573 Benjamin Herrenschmidt 2005-11-07 76 :::::: The code at line 70 was first introduced by commit :::::: 351ca3e31197929535418f5affc761cd9fb07428 windfarm: Convert to new-style i2c drivers :::::: TO: Jean Delvare :::::: CC: Jean Delvare -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki