Hi Borislav, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/alternatives head: 5d1dd961e74334a2178264193ea813d44ce5e725 commit: 5d1dd961e74334a2178264193ea813d44ce5e725 [1/1] x86/alternatives: Add alt_instr.flags config: x86_64-rhel-8.3-rust compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=5d1dd961e74334a2178264193ea813d44ce5e725 git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch --no-tags tip x86/alternatives git checkout 5d1dd961e74334a2178264193ea813d44ce5e725 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 prepare If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): >> error[E0588]: packed type cannot transitively contain a `#[repr(align)]` type --> rust/bindings/bindings_generated.rs:6182:1 | 6182 | / pub struct alt_instr { 6183 | | pub instr_offset: s32, 6184 | | pub repl_offset: s32, 6185 | | pub __bindgen_anon_1: alt_instr__bindgen_ty_1, 6186 | | pub instrlen: u8_, 6187 | | pub replacementlen: u8_, 6188 | | } | |_^ | note: `alt_instr__bindgen_ty_1__bindgen_ty_1` has a `#[repr(align)]` attribute --> rust/bindings/bindings_generated.rs:6199:1 | 6199 | / pub struct alt_instr__bindgen_ty_1__bindgen_ty_1 { 6200 | | pub _bitfield_1: __BindgenBitfieldUnit<[u8; 4usize], u16>, 6201 | | } | |_^ note: `alt_instr` contains a field of type `alt_instr__bindgen_ty_1` --> rust/bindings/bindings_generated.rs:6185:9 | 6185 | pub __bindgen_anon_1: alt_instr__bindgen_ty_1, | ^^^^^^^^^^^^^^^^ note: ...which contains a field of type `alt_instr__bindgen_ty_1__bindgen_ty_1` --> rust/bindings/bindings_generated.rs:6192:9 | 6192 | pub __bindgen_anon_1: alt_instr__bindgen_ty_1__bindgen_ty_1, | ^^^^^^^^^^^^^^^^ -- >> error: aborting due to previous error -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests