Hi Mathias, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Mathias-Lark/improve-handling-of-ICMP_EXT_ECHO-icmp-type/20220714-231818 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git b126047f43f11f61f1dd64802979765d71795dae config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220717/202207171049.oU9toH2Z-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/d238a024060b9cf5095b5027301f5921c9140c4e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Mathias-Lark/improve-handling-of-ICMP_EXT_ECHO-icmp-type/20220714-231818 git checkout d238a024060b9cf5095b5027301f5921c9140c4e # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from <command-line>: >> ./usr/include/linux/icmp.h:163:19: error: unknown type name 'bool' 163 | static __inline__ bool icmp_is_valid_type(__u8 type) | ^~~~ -- 0-DAY CI Kernel Test Service https://01.org/lkp