Hi Ekansh, kernel test robot noticed the following build errors: [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on char-misc/char-misc-next linus/master v6.6-rc6] [cannot apply to char-misc/char-misc-linus next-20231020] [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/Ekansh-Gupta/misc-fastrpc-Add-fastrpc-multimode-invoke-request-support/20231018-150423 base: char-misc/char-misc-testing patch link: https://lore.kernel.org/r/1697612560-9726-2-git-send-email-quic_ekangupt%40quicinc.com patch subject: [PATCH v5 1/5] misc: fastrpc: Add fastrpc multimode invoke request support config: i386-randconfig-011-20231022 (https://download.01.org/0day-ci/archive/20231022/202310220610.KdxUvBUu-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231022/202310220610.KdxUvBUu-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310220610.KdxUvBUu-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from <command-line>: >> ./usr/include/misc/fastrpc.h:89:33: error: C++ style comments are not allowed in ISO C90 89 | __u32 reserved[8]; // keeping reserved bits for new requirements | ^ ./usr/include/misc/fastrpc.h:89:33: note: (this will be reported only once per input file) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki