tree: https://github.com/ambarus/linux-0day spi-nor/next-id-collisions-v2 head: b4bf25c4aeb0e9be35b688a2eaa4e9b902dff4f4 commit: 1db04a902d5710228c3172ac7113a78857a3695f [20/27] mtd: spi-nor: Introduce spi_nor_set_mtd_info() config: x86_64-randconfig-s021-20210723 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://github.com/ambarus/linux-0day/commit/1db04a902d5710228c3172ac7113... git remote add ambarus https://github.com/ambarus/linux-0day git fetch --no-tags ambarus spi-nor/next-id-collisions-v2 git checkout 1db04a902d5710228c3172ac7113a78857a3695f # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/mtd/spi-nor/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org