Hi Rafał, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20230110] [also build test WARNING on v6.2-rc7] [cannot apply to robh/for-next shawnguo/for-next mtd/mtd/next mtd/mtd/fixes linus/master v6.2-rc3 v6.2-rc2 v6.2-rc1] [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/Rafa-Mi-ecki/nvmem-core-allow-read_post_process-callbacks-to-adjust-data-length/20230110-185915 patch link: https://lore.kernel.org/r/20230110105425.13188-1-zajec5%40gmail.com patch subject: [PATCH 1/6] nvmem: core: add nvmem_dev_size() helper config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230211/202302112138.XOdXy4yF-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/4d5cc61f8d02a82344468f172a852ffc56cf0d5c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Rafa-Mi-ecki/nvmem-core-allow-read_post_process-callbacks-to-adjust-data-length/20230110-185915 git checkout 4d5cc61f8d02a82344468f172a852ffc56cf0d5c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/nvmem/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302112138.XOdXy4yF-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/nvmem/core.c:16: >> include/linux/nvmem-consumer.h:81:1: warning: type qualifiers ignored on function return type [-Wignored-qualifiers] 81 | const size_t nvmem_dev_size(struct nvmem_device *nvmem); | ^~~~~ >> drivers/nvmem/core.c:2070:1: warning: type qualifiers ignored on function return type [-Wignored-qualifiers] 2070 | const size_t nvmem_dev_size(struct nvmem_device *nvmem) | ^~~~~ -- In file included from drivers/nvmem/brcm_nvram.c:10: >> include/linux/nvmem-consumer.h:81:1: warning: type qualifiers ignored on function return type [-Wignored-qualifiers] 81 | const size_t nvmem_dev_size(struct nvmem_device *nvmem); | ^~~~~ vim +81 include/linux/nvmem-consumer.h 49 50 /* Cell based interface */ 51 struct nvmem_cell *nvmem_cell_get(struct device *dev, const char *id); 52 struct nvmem_cell *devm_nvmem_cell_get(struct device *dev, const char *id); 53 void nvmem_cell_put(struct nvmem_cell *cell); 54 void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell); 55 void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len); 56 int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len); 57 int nvmem_cell_read_u8(struct device *dev, const char *cell_id, u8 *val); 58 int nvmem_cell_read_u16(struct device *dev, const char *cell_id, u16 *val); 59 int nvmem_cell_read_u32(struct device *dev, const char *cell_id, u32 *val); 60 int nvmem_cell_read_u64(struct device *dev, const char *cell_id, u64 *val); 61 int nvmem_cell_read_variable_le_u32(struct device *dev, const char *cell_id, 62 u32 *val); 63 int nvmem_cell_read_variable_le_u64(struct device *dev, const char *cell_id, 64 u64 *val); 65 66 /* direct nvmem device read/write interface */ 67 struct nvmem_device *nvmem_device_get(struct device *dev, const char *name); 68 struct nvmem_device *devm_nvmem_device_get(struct device *dev, 69 const char *name); 70 void nvmem_device_put(struct nvmem_device *nvmem); 71 void devm_nvmem_device_put(struct device *dev, struct nvmem_device *nvmem); 72 int nvmem_device_read(struct nvmem_device *nvmem, unsigned int offset, 73 size_t bytes, void *buf); 74 int nvmem_device_write(struct nvmem_device *nvmem, unsigned int offset, 75 size_t bytes, void *buf); 76 ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem, 77 struct nvmem_cell_info *info, void *buf); 78 int nvmem_device_cell_write(struct nvmem_device *nvmem, 79 struct nvmem_cell_info *info, void *buf); 80 > 81 const size_t nvmem_dev_size(struct nvmem_device *nvmem); 82 const char *nvmem_dev_name(struct nvmem_device *nvmem); 83 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
