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charset=us-ascii Content-Disposition: inline In-Reply-To: <20250426094145.13564-1-darshanrathod475@gmail.com> Hi Darshan, kernel test robot noticed the following build errors: [auto build test ERROR on staging/staging-testing] url: https://github.com/intel-lab-lkp/linux/commits/Darshan-Rathod/staging-comedi-das16-fixed-a-struct-warning-in-code/20250426-174345 base: staging/staging-testing patch link: https://lore.kernel.org/r/20250426094145.13564-1-darshanrathod475%40gmail.com patch subject: [PATCH] staging: comedi: das16 : fixed a struct warning in code config: x86_64-randconfig-072-20250506 (https://download.01.org/0day-ci/archive/20250507/202505071332.006irHBZ-lkp@intel.com/config) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250507/202505071332.006irHBZ-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/202505071332.006irHBZ-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/comedi/drivers/das16.c:969:18: error: cannot assign to variable 'lrange' with const-qualified type 'const struct comedi_lrange *' 969 | lrange->length = 1; | ~~~~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:959:31: note: variable 'lrange' declared const here 959 | const struct comedi_lrange *lrange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ >> drivers/comedi/drivers/das16.c:971:15: error: cannot assign to variable 'krange' with const-qualified type 'const struct comedi_krange *' 971 | krange->min = min; | ~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:960:31: note: variable 'krange' declared const here 960 | const struct comedi_krange *krange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ drivers/comedi/drivers/das16.c:972:15: error: cannot assign to variable 'krange' with const-qualified type 'const struct comedi_krange *' 972 | krange->max = max; | ~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:960:31: note: variable 'krange' declared const here 960 | const struct comedi_krange *krange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ drivers/comedi/drivers/das16.c:973:17: error: cannot assign to variable 'krange' with const-qualified type 'const struct comedi_krange *' 973 | krange->flags = UNIT_volt; | ~~~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:960:31: note: variable 'krange' declared const here 960 | const struct comedi_krange *krange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ drivers/comedi/drivers/das16.c:1003:18: error: cannot assign to variable 'lrange' with const-qualified type 'const struct comedi_lrange *' 1003 | lrange->length = 1; | ~~~~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:993:31: note: variable 'lrange' declared const here 993 | const struct comedi_lrange *lrange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ drivers/comedi/drivers/das16.c:1005:15: error: cannot assign to variable 'krange' with const-qualified type 'const struct comedi_krange *' 1005 | krange->min = min; | ~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:994:31: note: variable 'krange' declared const here 994 | const struct comedi_krange *krange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ drivers/comedi/drivers/das16.c:1006:15: error: cannot assign to variable 'krange' with const-qualified type 'const struct comedi_krange *' 1006 | krange->max = max; | ~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:994:31: note: variable 'krange' declared const here 994 | const struct comedi_krange *krange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ drivers/comedi/drivers/das16.c:1007:17: error: cannot assign to variable 'krange' with const-qualified type 'const struct comedi_krange *' 1007 | krange->flags = UNIT_volt; | ~~~~~~~~~~~~~ ^ drivers/comedi/drivers/das16.c:994:31: note: variable 'krange' declared const here 994 | const struct comedi_krange *krange; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ 8 errors generated. vim +969 drivers/comedi/drivers/das16.c 742c4a095973f6 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-12 947 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 948 static const struct comedi_lrange *das16_ai_range(struct comedi_device *dev, 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 949 struct comedi_subdevice *s, 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 950 struct comedi_devconfig *it, 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 951 unsigned int pg_type, 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 952 unsigned int status) 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 953 { 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 954 unsigned int min = it->options[4]; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 955 unsigned int max = it->options[5]; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 956 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 957 /* get any user-defined input range */ 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 958 if (pg_type == das16_pg_none && (min || max)) { a987dd48bc19ae drivers/comedi/drivers/das16.c Darshan Rathod 2025-04-26 959 const struct comedi_lrange *lrange; a987dd48bc19ae drivers/comedi/drivers/das16.c Darshan Rathod 2025-04-26 960 const struct comedi_krange *krange; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 961 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 962 /* allocate single-range range table */ 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 963 lrange = comedi_alloc_spriv(s, ee8ed0141d532d drivers/comedi/drivers/das16.c Gustavo A. R. Silva 2022-01-25 964 struct_size(lrange, range, 1)); 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 965 if (!lrange) 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 966 return &range_unknown; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 967 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 968 /* initialize ai range */ 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 @969 lrange->length = 1; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 970 krange = lrange->range; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 @971 krange->min = min; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 972 krange->max = max; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 973 krange->flags = UNIT_volt; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 974 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 975 return lrange; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 976 } 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 977 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 978 /* use software programmable range */ 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 979 if (status & DAS16_STATUS_UNIPOLAR) 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 980 return das16_ai_uni_lranges[pg_type]; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 981 return das16_ai_bip_lranges[pg_type]; 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 982 } 0ce8280e287609 drivers/staging/comedi/drivers/das16.c H Hartley Sweeten 2015-01-26 983 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki