Hi Andy, I love your patch! Perhaps something to improve: [auto build test WARNING on hch-configfs/for-next] [also build test WARNING on akpm-mm/mm-everything linus/master v6.2-rc1 next-20221226] [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/Andy-Shevchenko/uuid-Decouple-guid_t-and-uuid_le-types-and-respective-macros/20221228-213942 base: git://git.infradead.org/users/hch/configfs.git for-next patch link: https://lore.kernel.org/r/20221228133616.69278-1-andriy.shevchenko%40linux.intel.com patch subject: [PATCH v1 1/1] uuid: Decouple guid_t and uuid_le types and respective macros config: x86_64-allyesconfig compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/419ed69a685704bcd3f5f617181e305fb06bce0d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Andy-Shevchenko/uuid-Decouple-guid_t-and-uuid_le-types-and-respective-macros/20221228-213942 git checkout 419ed69a685704bcd3f5f617181e305fb06bce0d # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/misc/mei/hdcp/ drivers/misc/mei/pxp/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/misc/mei/hdcp/mei_hdcp.c:21: include/linux/uuid.h:24:1: error: incompatible types when initializing type 'unsigned char' using type 'guid_t' 24 | ((guid_t) \ | ^ drivers/misc/mei/hdcp/mei_hdcp.c:862:23: note: in expansion of macro 'GUID_INIT' 862 | #define MEI_UUID_HDCP GUID_INIT(0xB638AB7E, 0x94E2, 0x4EA2, 0xA5, \ | ^~~~~~~~~ drivers/misc/mei/hdcp/mei_hdcp.c:866:19: note: in expansion of macro 'MEI_UUID_HDCP' 866 | { .uuid = MEI_UUID_HDCP, .version = MEI_CL_VERSION_ANY }, | ^~~~~~~~~~~~~ >> drivers/misc/mei/hdcp/mei_hdcp.c:865:55: warning: missing braces around initializer [-Wmissing-braces] 865 | static const struct mei_cl_device_id mei_hdcp_tbl[] = { | ^ -- In file included from drivers/misc/mei/pxp/mei_pxp.c:16: include/linux/uuid.h:24:1: error: incompatible types when initializing type 'unsigned char' using type 'guid_t' 24 | ((guid_t) \ | ^ drivers/misc/mei/pxp/mei_pxp.c:209:22: note: in expansion of macro 'GUID_INIT' 209 | #define MEI_GUID_PXP GUID_INIT(0xfbf6fcf1, 0x96cf, 0x4e2e, 0xA6, \ | ^~~~~~~~~ drivers/misc/mei/pxp/mei_pxp.c:213:19: note: in expansion of macro 'MEI_GUID_PXP' 213 | { .uuid = MEI_GUID_PXP, .version = MEI_CL_VERSION_ANY }, | ^~~~~~~~~~~~ >> drivers/misc/mei/pxp/mei_pxp.c:212:48: warning: missing braces around initializer [-Wmissing-braces] 212 | static struct mei_cl_device_id mei_pxp_tbl[] = { | ^ vim +865 drivers/misc/mei/hdcp/mei_hdcp.c 64e9bbdd9588ad Ramalingam C 2019-02-21 861 64e9bbdd9588ad Ramalingam C 2019-02-21 862 #define MEI_UUID_HDCP GUID_INIT(0xB638AB7E, 0x94E2, 0x4EA2, 0xA5, \ 64e9bbdd9588ad Ramalingam C 2019-02-21 863 0x52, 0xD1, 0xC5, 0x4B, 0x62, 0x7F, 0x04) 64e9bbdd9588ad Ramalingam C 2019-02-21 864 50bf73bdce8efc Rikard Falkeborn 2020-06-11 @865 static const struct mei_cl_device_id mei_hdcp_tbl[] = { 64e9bbdd9588ad Ramalingam C 2019-02-21 866 { .uuid = MEI_UUID_HDCP, .version = MEI_CL_VERSION_ANY }, 64e9bbdd9588ad Ramalingam C 2019-02-21 867 { } 64e9bbdd9588ad Ramalingam C 2019-02-21 868 }; 64e9bbdd9588ad Ramalingam C 2019-02-21 869 MODULE_DEVICE_TABLE(mei, mei_hdcp_tbl); 64e9bbdd9588ad Ramalingam C 2019-02-21 870 -- 0-DAY CI Kernel Test Service https://01.org/lkp