reproduce (this is a W=1 build): git checkout 2efb7a11f1aa4d2dc285fe2680cca22cb9f72f64 b4 shazam https://lore.kernel.org/r/20261022-topic-pdc_map_espi-v1-1-7c481a42bac5@oss.qualcomm.com # clang-24 might not be officially released. Try a lower version if installation fails. git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-24 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-24 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/irqchip/